vendor: github.com/prometheus/client_golang v1.23.2

full diff: https://github.com/prometheus/client_golang/compare/v1.22.0...v1.23.2 Also updating to go.yaml.in/yaml/v2 v2.4.3 - Retract v2 tags that cannot be installed full diff: https://github.com/yaml/go-yaml/compare/v2.4.2...v2.4.3 Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2026-01-11 18:51:37 +00:00 · 2025-11-11 10:04:07 +01:00
parent efc3e93b1e
commit 1621c4e7ad
73 changed files with 10995 additions and 515 deletions
--- a/go.mod
+++ b/go.mod
@@ -85,7 +85,7 @@ require (
 	github.com/opencontainers/selinux v1.13.0
 	github.com/pelletier/go-toml v1.9.5
 	github.com/pkg/errors v0.9.1
-	github.com/prometheus/client_golang v1.22.0
+	github.com/prometheus/client_golang v1.23.2
 	github.com/rootless-containers/rootlesskit/v2 v2.3.5
 	github.com/sirupsen/logrus v1.9.3
 	github.com/spf13/cobra v1.10.1
@@ -200,9 +200,9 @@ require (
 	github.com/philhofer/fwd v1.2.0 // indirect
 	github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
-	github.com/prometheus/client_model v0.6.1 // indirect
-	github.com/prometheus/common v0.62.0 // indirect
-	github.com/prometheus/procfs v0.15.1 // indirect
+	github.com/prometheus/client_model v0.6.2 // indirect
+	github.com/prometheus/common v0.66.1 // indirect
+	github.com/prometheus/procfs v0.16.1 // indirect
 	github.com/sasha-s/go-deadlock v0.3.5 // indirect
 	github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529 // indirect
 	github.com/secure-systems-lab/go-securesystemslib v0.6.0 // indirect
@@ -235,6 +235,7 @@ require (
 	go.opentelemetry.io/proto/otlp v1.5.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	go.uber.org/zap v1.27.0 // indirect
+	go.yaml.in/yaml/v2 v2.4.3 // indirect
 	golang.org/x/crypto v0.43.0 // indirect
 	golang.org/x/oauth2 v0.30.0 // indirect
 	golang.org/x/tools v0.37.0 // indirect
--- a/go.sum
+++ b/go.sum
@@ -510,25 +510,25 @@ github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXP
 github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
 github.com/prometheus/client_golang v1.1.0/go.mod h1:I1FGZT9+L76gKKOs5djB6ezCbFQP1xR9D75/vuwEF3g=
 github.com/prometheus/client_golang v1.4.0/go.mod h1:e9GMxYsXl05ICDXkRhurwBS4Q3OK1iX/F2sw+iXX5zU=
-github.com/prometheus/client_golang v1.22.0 h1:rb93p9lokFEsctTys46VnV1kLCDpVZ0a/Y92Vm0Zc6Q=
-github.com/prometheus/client_golang v1.22.0/go.mod h1:R7ljNsLXhuQXYZYtw6GAE9AZg8Y7vEW5scdCXrWRXC0=
+github.com/prometheus/client_golang v1.23.2 h1:Je96obch5RDVy3FDMndoUsjAhG5Edi49h0RJWRi/o0o=
+github.com/prometheus/client_golang v1.23.2/go.mod h1:Tb1a6LWHB3/SPIzCoaDXI4I8UHKeFTEQ1YCr+0Gyqmg=
 github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
 github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/prometheus/client_model v0.2.0/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
-github.com/prometheus/client_model v0.6.1 h1:ZKSh/rekM+n3CeS952MLRAdFwIKqeY8b62p8ais2e9E=
-github.com/prometheus/client_model v0.6.1/go.mod h1:OrxVMOVHjw3lKMa8+x6HeMGkHMQyHDk9E3jmP2AmGiY=
+github.com/prometheus/client_model v0.6.2 h1:oBsgwpGs7iVziMvrGhE53c/GrLUsZdHnqNwqPLxwZyk=
+github.com/prometheus/client_model v0.6.2/go.mod h1:y3m2F6Gdpfy6Ut/GBsUqTWZqCUvMVzSfMLjcu6wAwpE=
 github.com/prometheus/common v0.4.1/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
 github.com/prometheus/common v0.6.0/go.mod h1:eBmuwkDJBwy6iBfxCBob6t6dR6ENT/y+J+Zk0j9GMYc=
 github.com/prometheus/common v0.9.1/go.mod h1:yhUN8i9wzaXS3w1O07YhxHEBxD+W35wd8bs7vj7HSQ4=
-github.com/prometheus/common v0.62.0 h1:xasJaQlnWAeyHdUBeGjXmutelfJHWMRr+Fg4QszZ2Io=
-github.com/prometheus/common v0.62.0/go.mod h1:vyBcEuLSvWos9B1+CyL7JZ2up+uFzXhkqml0W5zIY1I=
+github.com/prometheus/common v0.66.1 h1:h5E0h5/Y8niHc5DlaLlWLArTQI7tMrsfQjHV+d9ZoGs=
+github.com/prometheus/common v0.66.1/go.mod h1:gcaUsgf3KfRSwHY4dIMXLPV0K/Wg1oZ8+SbZk/HH/dA=
 github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
 github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
 github.com/prometheus/procfs v0.0.3/go.mod h1:4A/X28fw3Fc593LaREMrKMqOKvUAntwMDaekg4FpcdQ=
 github.com/prometheus/procfs v0.0.8/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+GxbHq6oeK9A=
-github.com/prometheus/procfs v0.15.1 h1:YagwOFzUgYfKKHX6Dr+sHT7km/hxC76UB0learggepc=
-github.com/prometheus/procfs v0.15.1/go.mod h1:fB45yRUv8NstnjriLhBQLuOUt+WW4BsoGhij/e3PBqk=
+github.com/prometheus/procfs v0.16.1 h1:hZ15bTNuirocR6u0JZ6BAHHmwS1p8B4P6MRqxtzMyRg=
+github.com/prometheus/procfs v0.16.1/go.mod h1:teAbpZRB1iIAJYREa1LsoWUXykVXA1KlTmWl8x/U+Is=
 github.com/rogpeppe/go-internal v1.13.1 h1:KvO1DLK/DRN07sQ1LQKScxyZJuNnedQ5/wKSR38lUII=
 github.com/rogpeppe/go-internal v1.13.1/go.mod h1:uMEvuHeurkdAXX61udpOXGD/AzZDWNMNyH2VO9fmH0o=
 github.com/rootless-containers/rootlesskit/v2 v2.3.5 h1:WGY05oHE7xQpSkCGfYP9lMY5z19tCxA8PhWlvP1cKx8=
@@ -675,6 +675,8 @@ go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
 go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
 go.uber.org/zap v1.27.0 h1:aJMhYGrd5QSmlpLMr2MftRKl7t8J8PTZPA732ud/XR8=
 go.uber.org/zap v1.27.0/go.mod h1:GB2qFLM7cTU87MWRP2mPIjqfIDnGu+VIO4V/SdhGo2E=
+go.yaml.in/yaml/v2 v2.4.3 h1:6gvOSjQoTB3vt1l+CU+tSyi/HOjfOjRLJ4YwYZGwRO0=
+go.yaml.in/yaml/v2 v2.4.3/go.mod h1:zSxWcmIDjOzPXpjlTTbAsKokqkDNAVtZO0WOMiT90s8=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20181029021203-45a5f77698d3/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
--- a/vendor/github.com/prometheus/client_golang/prometheus/desc.go
+++ b/vendor/github.com/prometheus/client_golang/prometheus/desc.go
@@ -95,7 +95,8 @@ func (v2) NewDesc(fqName, help string, variableLabels ConstrainableLabels, const
 		help:           help,
 		variableLabels: variableLabels.compile(),
 	}
-	if !model.IsValidMetricName(model.LabelValue(fqName)) {
+	//nolint:staticcheck // TODO: Don't use deprecated model.NameValidationScheme.
+	if !model.NameValidationScheme.IsValidMetricName(fqName) {
 		d.err = fmt.Errorf("%q is not a valid metric name", fqName)
 		return d
 	}
--- a/vendor/github.com/prometheus/client_golang/prometheus/internal/difflib.go
+++ b/vendor/github.com/prometheus/client_golang/prometheus/internal/difflib.go
@@ -453,7 +453,7 @@ func (m *SequenceMatcher) GetGroupedOpCodes(n int) [][]OpCode {
 		}
 		group = append(group, OpCode{c.Tag, i1, i2, j1, j2})
 	}
-	if len(group) > 0 && !(len(group) == 1 && group[0].Tag == 'e') {
+	if len(group) > 0 && (len(group) != 1 || group[0].Tag != 'e') {
 		groups = append(groups, group)
 	}
 	return groups
@@ -568,7 +568,7 @@ func WriteUnifiedDiff(writer io.Writer, diff UnifiedDiff) error {
 	buf := bufio.NewWriter(writer)
 	defer buf.Flush()
 	wf := func(format string, args ...interface{}) error {
-		_, err := buf.WriteString(fmt.Sprintf(format, args...))
+		_, err := fmt.Fprintf(buf, format, args...)
 		return err
 	}
 	ws := func(s string) error {
--- a/vendor/github.com/prometheus/client_golang/prometheus/internal/go_runtime_metrics.go
+++ b/vendor/github.com/prometheus/client_golang/prometheus/internal/go_runtime_metrics.go
@@ -67,7 +67,7 @@ func RuntimeMetricsToProm(d *metrics.Description) (string, string, string, bool)
 	}

 	// Our current conversion moves to legacy naming, so use legacy validation.
-	valid := model.IsValidLegacyMetricName(namespace + "_" + subsystem + "_" + name)
+	valid := model.LegacyValidation.IsValidMetricName(namespace + "_" + subsystem + "_" + name)
 	switch d.Kind {
 	case metrics.KindUint64:
 	case metrics.KindFloat64:
--- a/vendor/github.com/prometheus/client_golang/prometheus/labels.go
+++ b/vendor/github.com/prometheus/client_golang/prometheus/labels.go
@@ -184,5 +184,6 @@ func validateLabelValues(vals []string, expectedNumberOfValues int) error {
 }

 func checkLabelName(l string) bool {
-	return model.LabelName(l).IsValid() && !strings.HasPrefix(l, reservedLabelPrefix)
+	//nolint:staticcheck // TODO: Don't use deprecated model.NameValidationScheme.
+	return model.NameValidationScheme.IsValidLabelName(l) && !strings.HasPrefix(l, reservedLabelPrefix)
 }
--- a/vendor/github.com/prometheus/client_golang/prometheus/metric.go
+++ b/vendor/github.com/prometheus/client_golang/prometheus/metric.go
@@ -186,21 +186,31 @@ func (m *withExemplarsMetric) Write(pb *dto.Metric) error {
 	case pb.Counter != nil:
 		pb.Counter.Exemplar = m.exemplars[len(m.exemplars)-1]
 	case pb.Histogram != nil:
+		h := pb.Histogram
 		for _, e := range m.exemplars {
-			// pb.Histogram.Bucket are sorted by UpperBound.
-			i := sort.Search(len(pb.Histogram.Bucket), func(i int) bool {
-				return pb.Histogram.Bucket[i].GetUpperBound() >= e.GetValue()
+			if (h.GetZeroThreshold() != 0 || h.GetZeroCount() != 0 ||
+				len(h.PositiveSpan) != 0 || len(h.NegativeSpan) != 0) &&
+				e.GetTimestamp() != nil {
+				h.Exemplars = append(h.Exemplars, e)
+				if len(h.Bucket) == 0 {
+					// Don't proceed to classic buckets if there are none.
+					continue
+				}
+			}
+			// h.Bucket are sorted by UpperBound.
+			i := sort.Search(len(h.Bucket), func(i int) bool {
+				return h.Bucket[i].GetUpperBound() >= e.GetValue()
 			})
-			if i < len(pb.Histogram.Bucket) {
-				pb.Histogram.Bucket[i].Exemplar = e
+			if i < len(h.Bucket) {
+				h.Bucket[i].Exemplar = e
 			} else {
 				// The +Inf bucket should be explicitly added if there is an exemplar for it, similar to non-const histogram logic in https://github.com/prometheus/client_golang/blob/main/prometheus/histogram.go#L357-L365.
 				b := &dto.Bucket{
-					CumulativeCount: proto.Uint64(pb.Histogram.GetSampleCount()),
+					CumulativeCount: proto.Uint64(h.GetSampleCount()),
 					UpperBound:      proto.Float64(math.Inf(1)),
 					Exemplar:        e,
 				}
-				pb.Histogram.Bucket = append(pb.Histogram.Bucket, b)
+				h.Bucket = append(h.Bucket, b)
 			}
 		}
 	default:
@@ -227,6 +237,7 @@ type Exemplar struct {
 // Only last applicable exemplar is injected from the list.
 // For example for Counter it means last exemplar is injected.
 // For Histogram, it means last applicable exemplar for each bucket is injected.
+// For a Native Histogram, all valid exemplars are injected.
 //
 // NewMetricWithExemplars works best with MustNewConstMetric and
 // MustNewConstHistogram, see example.
--- a/vendor/github.com/prometheus/client_golang/prometheus/process_collector_darwin.go
+++ b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_darwin.go
@@ -25,9 +25,9 @@ import (
 	"golang.org/x/sys/unix"
 )

-// notImplementedErr is returned by stub functions that replace cgo functions, when cgo
+// errNotImplemented is returned by stub functions that replace cgo functions, when cgo
 // isn't available.
-var notImplementedErr = errors.New("not implemented")
+var errNotImplemented = errors.New("not implemented")

 type memoryInfo struct {
 	vsize uint64 // Virtual memory size in bytes
@@ -101,7 +101,7 @@ func (c *processCollector) processCollect(ch chan<- Metric) {
 	if memInfo, err := getMemory(); err == nil {
 		ch <- MustNewConstMetric(c.rss, GaugeValue, float64(memInfo.rss))
 		ch <- MustNewConstMetric(c.vsize, GaugeValue, float64(memInfo.vsize))
-	} else if !errors.Is(err, notImplementedErr) {
+	} else if !errors.Is(err, errNotImplemented) {
 		// Don't report an error when support is not compiled in.
 		c.reportError(ch, c.rss, err)
 		c.reportError(ch, c.vsize, err)
--- a/vendor/github.com/prometheus/client_golang/prometheus/process_collector_mem_nocgo_darwin.go
+++ b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_mem_nocgo_darwin.go
@@ -16,7 +16,7 @@
 package prometheus

 func getMemory() (*memoryInfo, error) {
-	return nil, notImplementedErr
+	return nil, errNotImplemented
 }

 // describe returns all descriptions of the collector for Darwin.
--- a/vendor/github.com/prometheus/client_golang/prometheus/process_collector_procfsenabled.go
+++ b/vendor/github.com/prometheus/client_golang/prometheus/process_collector_procfsenabled.go
@@ -66,11 +66,11 @@ func (c *processCollector) processCollect(ch chan<- Metric) {

 	if netstat, err := p.Netstat(); err == nil {
 		var inOctets, outOctets float64
-		if netstat.IpExt.InOctets != nil {
-			inOctets = *netstat.IpExt.InOctets
+		if netstat.InOctets != nil {
+			inOctets = *netstat.InOctets
 		}
-		if netstat.IpExt.OutOctets != nil {
-			outOctets = *netstat.IpExt.OutOctets
+		if netstat.OutOctets != nil {
+			outOctets = *netstat.OutOctets
 		}
 		ch <- MustNewConstMetric(c.inBytes, CounterValue, inOctets)
 		ch <- MustNewConstMetric(c.outBytes, CounterValue, outOctets)
--- a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_server.go
+++ b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/instrument_server.go
@@ -392,7 +392,7 @@ func isLabelCurried(c prometheus.Collector, label string) bool {
 func labels(code, method bool, reqMethod string, status int, extraMethods ...string) prometheus.Labels {
 	labels := prometheus.Labels{}

-	if !(code || method) {
+	if !code && !method {
 		return labels
 	}

--- a/vendor/github.com/prometheus/client_golang/prometheus/vec.go
+++ b/vendor/github.com/prometheus/client_golang/prometheus/vec.go
@@ -79,7 +79,7 @@ func (m *MetricVec) DeleteLabelValues(lvs ...string) bool {
 		return false
 	}

-	return m.metricMap.deleteByHashWithLabelValues(h, lvs, m.curry)
+	return m.deleteByHashWithLabelValues(h, lvs, m.curry)
 }

 // Delete deletes the metric where the variable labels are the same as those
@@ -101,7 +101,7 @@ func (m *MetricVec) Delete(labels Labels) bool {
 		return false
 	}

-	return m.metricMap.deleteByHashWithLabels(h, labels, m.curry)
+	return m.deleteByHashWithLabels(h, labels, m.curry)
 }

 // DeletePartialMatch deletes all metrics where the variable labels contain all of those
@@ -114,7 +114,7 @@ func (m *MetricVec) DeletePartialMatch(labels Labels) int {
 	labels, closer := constrainLabels(m.desc, labels)
 	defer closer()

-	return m.metricMap.deleteByLabels(labels, m.curry)
+	return m.deleteByLabels(labels, m.curry)
 }

 // Without explicit forwarding of Describe, Collect, Reset, those methods won't
@@ -216,7 +216,7 @@ func (m *MetricVec) GetMetricWithLabelValues(lvs ...string) (Metric, error) {
 		return nil, err
 	}

-	return m.metricMap.getOrCreateMetricWithLabelValues(h, lvs, m.curry), nil
+	return m.getOrCreateMetricWithLabelValues(h, lvs, m.curry), nil
 }

 // GetMetricWith returns the Metric for the given Labels map (the label names
@@ -244,7 +244,7 @@ func (m *MetricVec) GetMetricWith(labels Labels) (Metric, error) {
 		return nil, err
 	}

-	return m.metricMap.getOrCreateMetricWithLabels(h, labels, m.curry), nil
+	return m.getOrCreateMetricWithLabels(h, labels, m.curry), nil
 }

 func (m *MetricVec) hashLabelValues(vals []string) (uint64, error) {
--- a/vendor/github.com/prometheus/client_golang/prometheus/wrap.go
+++ b/vendor/github.com/prometheus/client_golang/prometheus/wrap.go
@@ -63,7 +63,7 @@ func WrapRegistererWith(labels Labels, reg Registerer) Registerer {
 // metric names that are standardized across applications, as that would break
 // horizontal monitoring, for example the metrics provided by the Go collector
 // (see NewGoCollector) and the process collector (see NewProcessCollector). (In
-// fact, those metrics are already prefixed with “go_” or “process_”,
+// fact, those metrics are already prefixed with "go_" or "process_",
 // respectively.)
 //
 // Conflicts between Collectors registered through the original Registerer with
@@ -78,6 +78,40 @@ func WrapRegistererWithPrefix(prefix string, reg Registerer) Registerer {
 	}
 }

+// WrapCollectorWith returns a Collector wrapping the provided Collector. The
+// wrapped Collector will add the provided Labels to all Metrics it collects (as
+// ConstLabels). The Metrics collected by the unmodified Collector must not
+// duplicate any of those labels.
+//
+// WrapCollectorWith can be useful to work with multiple instances of a third
+// party library that does not expose enough flexibility on the lifecycle of its
+// registered metrics.
+// For example, let's say you have a foo.New(reg Registerer) constructor that
+// registers metrics but never unregisters them, and you want to create multiple
+// instances of foo.Foo with different labels.
+// The way to achieve that, is to create a new Registry, pass it to foo.New,
+// then use WrapCollectorWith to wrap that Registry with the desired labels and
+// register that as a collector in your main Registry.
+// Then you can un-register the wrapped collector effectively un-registering the
+// metrics registered by foo.New.
+func WrapCollectorWith(labels Labels, c Collector) Collector {
+	return &wrappingCollector{
+		wrappedCollector: c,
+		labels:           labels,
+	}
+}
+
+// WrapCollectorWithPrefix returns a Collector wrapping the provided Collector. The
+// wrapped Collector will add the provided prefix to the name of all Metrics it collects.
+//
+// See the documentation of WrapCollectorWith for more details on the use case.
+func WrapCollectorWithPrefix(prefix string, c Collector) Collector {
+	return &wrappingCollector{
+		wrappedCollector: c,
+		prefix:           prefix,
+	}
+}
+
 type wrappingRegisterer struct {
 	wrappedRegisterer Registerer
 	prefix            string
--- a/vendor/github.com/prometheus/common/expfmt/decode.go
+++ b/vendor/github.com/prometheus/common/expfmt/decode.go
@@ -70,19 +70,34 @@ func ResponseFormat(h http.Header) Format {
 	return FmtUnknown
 }

-// NewDecoder returns a new decoder based on the given input format.
-// If the input format does not imply otherwise, a text format decoder is returned.
+// NewDecoder returns a new decoder based on the given input format. Metric
+// names are validated based on the provided Format -- if the format requires
+// escaping, raditional Prometheues validity checking is used. Otherwise, names
+// are checked for UTF-8 validity. Supported formats include delimited protobuf
+// and Prometheus text format.  For historical reasons, this decoder fallbacks
+// to classic text decoding for any other format. This decoder does not fully
+// support OpenMetrics although it may often succeed due to the similarities
+// between the formats. This decoder may not support the latest features of
+// Prometheus text format and is not intended for high-performance applications.
+// See: https://github.com/prometheus/common/issues/812
 func NewDecoder(r io.Reader, format Format) Decoder {
+	scheme := model.LegacyValidation
+	if format.ToEscapingScheme() == model.NoEscaping {
+		scheme = model.UTF8Validation
+	}
 	switch format.FormatType() {
 	case TypeProtoDelim:
-		return &protoDecoder{r: bufio.NewReader(r)}
+		return &protoDecoder{r: bufio.NewReader(r), s: scheme}
+	case TypeProtoText, TypeProtoCompact:
+		return &errDecoder{err: fmt.Errorf("format %s not supported for decoding", format)}
 	}
-	return &textDecoder{r: r}
+	return &textDecoder{r: r, s: scheme}
 }

 // protoDecoder implements the Decoder interface for protocol buffers.
 type protoDecoder struct {
 	r protodelim.Reader
+	s model.ValidationScheme
 }

 // Decode implements the Decoder interface.
@@ -93,7 +108,7 @@ func (d *protoDecoder) Decode(v *dto.MetricFamily) error {
 	if err := opts.UnmarshalFrom(d.r, v); err != nil {
 		return err
 	}
-	if !model.IsValidMetricName(model.LabelValue(v.GetName())) {
+	if !d.s.IsValidMetricName(v.GetName()) {
 		return fmt.Errorf("invalid metric name %q", v.GetName())
 	}
 	for _, m := range v.GetMetric() {
@@ -107,7 +122,7 @@ func (d *protoDecoder) Decode(v *dto.MetricFamily) error {
 			if !model.LabelValue(l.GetValue()).IsValid() {
 				return fmt.Errorf("invalid label value %q", l.GetValue())
 			}
-			if !model.LabelName(l.GetName()).IsValid() {
+			if !d.s.IsValidLabelName(l.GetName()) {
 				return fmt.Errorf("invalid label name %q", l.GetName())
 			}
 		}
@@ -115,10 +130,20 @@ func (d *protoDecoder) Decode(v *dto.MetricFamily) error {
 	return nil
 }

+// errDecoder is an error-state decoder that always returns the same error.
+type errDecoder struct {
+	err error
+}
+
+func (d *errDecoder) Decode(*dto.MetricFamily) error {
+	return d.err
+}
+
 // textDecoder implements the Decoder interface for the text protocol.
 type textDecoder struct {
 	r    io.Reader
 	fams map[string]*dto.MetricFamily
+	s    model.ValidationScheme
 	err  error
 }

@@ -126,7 +151,7 @@ type textDecoder struct {
 func (d *textDecoder) Decode(v *dto.MetricFamily) error {
 	if d.err == nil {
 		// Read all metrics in one shot.
-		var p TextParser
+		p := NewTextParser(d.s)
 		d.fams, d.err = p.TextToMetricFamilies(d.r)
 		// If we don't get an error, store io.EOF for the end.
 		if d.err == nil {
--- a/vendor/github.com/prometheus/common/expfmt/encode.go
+++ b/vendor/github.com/prometheus/common/expfmt/encode.go
@@ -18,14 +18,12 @@ import (
 	"io"
 	"net/http"

+	"github.com/munnerz/goautoneg"
+	dto "github.com/prometheus/client_model/go"
 	"google.golang.org/protobuf/encoding/protodelim"
 	"google.golang.org/protobuf/encoding/prototext"

 	"github.com/prometheus/common/model"
-
-	"github.com/munnerz/goautoneg"
-
-	dto "github.com/prometheus/client_model/go"
 )

 // Encoder types encode metric families into an underlying wire protocol.
@@ -61,7 +59,7 @@ func (ec encoderCloser) Close() error {
 // appropriate accepted type is found, FmtText is returned (which is the
 // Prometheus text format). This function will never negotiate FmtOpenMetrics,
 // as the support is still experimental. To include the option to negotiate
-// FmtOpenMetrics, use NegotiateOpenMetrics.
+// FmtOpenMetrics, use NegotiateIncludingOpenMetrics.
 func Negotiate(h http.Header) Format {
 	escapingScheme := Format(fmt.Sprintf("; escaping=%s", Format(model.NameEscapingScheme.String())))
 	for _, ac := range goautoneg.ParseAccept(h.Get(hdrAccept)) {
@@ -153,7 +151,7 @@ func NewEncoder(w io.Writer, format Format, options ...EncoderOption) Encoder {
 	case TypeProtoDelim:
 		return encoderCloser{
 			encode: func(v *dto.MetricFamily) error {
-				_, err := protodelim.MarshalTo(w, v)
+				_, err := protodelim.MarshalTo(w, model.EscapeMetricFamily(v, escapingScheme))
 				return err
 			},
 			close: func() error { return nil },
--- a/vendor/github.com/prometheus/common/expfmt/expfmt.go
+++ b/vendor/github.com/prometheus/common/expfmt/expfmt.go
@@ -38,7 +38,9 @@ const (
 	// Deprecated: Use expfmt.NewFormat(expfmt.TypeProtoCompact) instead.
 	ProtoFmt        = ProtoType + "; proto=" + ProtoProtocol + ";"
 	OpenMetricsType = `application/openmetrics-text`
+	//nolint:revive // Allow for underscores.
 	OpenMetricsVersion_0_0_1 = "0.0.1"
+	//nolint:revive // Allow for underscores.
 	OpenMetricsVersion_1_0_0 = "1.0.0"

 	// The Content-Type values for the different wire protocols. Do not do direct
@@ -54,8 +56,10 @@ const (
 	// Deprecated: Use expfmt.NewFormat(expfmt.TypeProtoCompact) instead.
 	FmtProtoCompact Format = ProtoFmt + ` encoding=compact-text`
 	// Deprecated: Use expfmt.NewFormat(expfmt.TypeOpenMetrics) instead.
+	//nolint:revive // Allow for underscores.
 	FmtOpenMetrics_1_0_0 Format = OpenMetricsType + `; version=` + OpenMetricsVersion_1_0_0 + `; charset=utf-8`
 	// Deprecated: Use expfmt.NewFormat(expfmt.TypeOpenMetrics) instead.
+	//nolint:revive // Allow for underscores.
 	FmtOpenMetrics_0_0_1 Format = OpenMetricsType + `; version=` + OpenMetricsVersion_0_0_1 + `; charset=utf-8`
 )

@@ -188,8 +192,8 @@ func (f Format) FormatType() FormatType {
 // Format contains a escaping=allow-utf-8 term, it will select NoEscaping. If a valid
 // "escaping" term exists, that will be used. Otherwise, the global default will
 // be returned.
-func (format Format) ToEscapingScheme() model.EscapingScheme {
-	for _, p := range strings.Split(string(format), ";") {
+func (f Format) ToEscapingScheme() model.EscapingScheme {
+	for _, p := range strings.Split(string(f), ";") {
 		toks := strings.Split(p, "=")
 		if len(toks) != 2 {
 			continue
--- a/vendor/github.com/prometheus/common/expfmt/fuzz.go
+++ b/vendor/github.com/prometheus/common/expfmt/fuzz.go
@@ -17,7 +17,11 @@

 package expfmt

-import "bytes"
+import (
+	"bytes"
+
+	"github.com/prometheus/common/model"
+)

 // Fuzz text metric parser with with github.com/dvyukov/go-fuzz:
 //
@@ -26,9 +30,8 @@ import "bytes"
 //
 // Further input samples should go in the folder fuzz/corpus.
 func Fuzz(in []byte) int {
-	parser := TextParser{}
+	parser := NewTextParser(model.UTF8Validation)
 	_, err := parser.TextToMetricFamilies(bytes.NewReader(in))
-
 	if err != nil {
 		return 0
 	}
--- a/vendor/github.com/prometheus/common/expfmt/openmetrics_create.go
+++ b/vendor/github.com/prometheus/common/expfmt/openmetrics_create.go
@@ -22,11 +22,10 @@ import (
 	"strconv"
 	"strings"

+	dto "github.com/prometheus/client_model/go"
 	"google.golang.org/protobuf/types/known/timestamppb"

 	"github.com/prometheus/common/model"
-
-	dto "github.com/prometheus/client_model/go"
 )

 type encoderOption struct {
@@ -249,7 +248,7 @@ func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily, options ...E

 	// Finally the samples, one line for each.
 	if metricType == dto.MetricType_COUNTER && strings.HasSuffix(name, "_total") {
-		compliantName = compliantName + "_total"
+		compliantName += "_total"
 	}
 	for _, metric := range in.Metric {
 		switch metricType {
@@ -477,7 +476,7 @@ func writeOpenMetricsNameAndLabelPairs(
 	if name != "" {
 		// If the name does not pass the legacy validity check, we must put the
 		// metric name inside the braces, quoted.
-		if !model.IsValidLegacyMetricName(name) {
+		if !model.LegacyValidation.IsValidMetricName(name) {
 			metricInsideBraces = true
 			err := w.WriteByte(separator)
 			written++
@@ -641,11 +640,11 @@ func writeExemplar(w enhancedWriter, e *dto.Exemplar) (int, error) {
 		if err != nil {
 			return written, err
 		}
-		err = (*e).Timestamp.CheckValid()
+		err = e.Timestamp.CheckValid()
 		if err != nil {
 			return written, err
 		}
-		ts := (*e).Timestamp.AsTime()
+		ts := e.Timestamp.AsTime()
 		// TODO(beorn7): Format this directly from components of ts to
 		// avoid overflow/underflow and precision issues of the float
 		// conversion.
--- a/vendor/github.com/prometheus/common/expfmt/text_create.go
+++ b/vendor/github.com/prometheus/common/expfmt/text_create.go
@@ -22,9 +22,9 @@ import (
 	"strings"
 	"sync"

-	"github.com/prometheus/common/model"
-
 	dto "github.com/prometheus/client_model/go"
+
+	"github.com/prometheus/common/model"
 )

 // enhancedWriter has all the enhanced write functions needed here. bufio.Writer
@@ -354,7 +354,7 @@ func writeNameAndLabelPairs(
 	if name != "" {
 		// If the name does not pass the legacy validity check, we must put the
 		// metric name inside the braces.
-		if !model.IsValidLegacyMetricName(name) {
+		if !model.LegacyValidation.IsValidMetricName(name) {
 			metricInsideBraces = true
 			err := w.WriteByte(separator)
 			written++
@@ -498,7 +498,7 @@ func writeInt(w enhancedWriter, i int64) (int, error) {
 // writeName writes a string as-is if it complies with the legacy naming
 // scheme, or escapes it in double quotes if not.
 func writeName(w enhancedWriter, name string) (int, error) {
-	if model.IsValidLegacyMetricName(name) {
+	if model.LegacyValidation.IsValidMetricName(name) {
 		return w.WriteString(name)
 	}
 	var written int
--- a/vendor/github.com/prometheus/common/expfmt/text_parse.go
+++ b/vendor/github.com/prometheus/common/expfmt/text_parse.go
@@ -78,6 +78,14 @@ type TextParser struct {
 	// These indicate if the metric name from the current line being parsed is inside
 	// braces and if that metric name was found respectively.
 	currentMetricIsInsideBraces, currentMetricInsideBracesIsPresent bool
+	// scheme sets the desired ValidationScheme for names. Defaults to the invalid
+	// UnsetValidation.
+	scheme model.ValidationScheme
+}
+
+// NewTextParser returns a new TextParser with the provided nameValidationScheme.
+func NewTextParser(nameValidationScheme model.ValidationScheme) TextParser {
+	return TextParser{scheme: nameValidationScheme}
 }

 // TextToMetricFamilies reads 'in' as the simple and flat text-based exchange
@@ -126,6 +134,7 @@ func (p *TextParser) TextToMetricFamilies(in io.Reader) (map[string]*dto.MetricF

 func (p *TextParser) reset(in io.Reader) {
 	p.metricFamiliesByName = map[string]*dto.MetricFamily{}
+	p.currentLabelPairs = nil
 	if p.buf == nil {
 		p.buf = bufio.NewReader(in)
 	} else {
@@ -216,6 +225,9 @@ func (p *TextParser) startComment() stateFn {
 		return nil
 	}
 	p.setOrCreateCurrentMF()
+	if p.err != nil {
+		return nil
+	}
 	if p.skipBlankTab(); p.err != nil {
 		return nil // Unexpected end of input.
 	}
@@ -244,6 +256,9 @@ func (p *TextParser) readingMetricName() stateFn {
 		return nil
 	}
 	p.setOrCreateCurrentMF()
+	if p.err != nil {
+		return nil
+	}
 	// Now is the time to fix the type if it hasn't happened yet.
 	if p.currentMF.Type == nil {
 		p.currentMF.Type = dto.MetricType_UNTYPED.Enum()
@@ -311,6 +326,9 @@ func (p *TextParser) startLabelName() stateFn {
 			switch p.currentByte {
 			case ',':
 				p.setOrCreateCurrentMF()
+				if p.err != nil {
+					return nil
+				}
 				if p.currentMF.Type == nil {
 					p.currentMF.Type = dto.MetricType_UNTYPED.Enum()
 				}
@@ -319,6 +337,10 @@ func (p *TextParser) startLabelName() stateFn {
 				return p.startLabelName
 			case '}':
 				p.setOrCreateCurrentMF()
+				if p.err != nil {
+					p.currentLabelPairs = nil
+					return nil
+				}
 				if p.currentMF.Type == nil {
 					p.currentMF.Type = dto.MetricType_UNTYPED.Enum()
 				}
@@ -341,25 +363,30 @@ func (p *TextParser) startLabelName() stateFn {
 	p.currentLabelPair = &dto.LabelPair{Name: proto.String(p.currentToken.String())}
 	if p.currentLabelPair.GetName() == string(model.MetricNameLabel) {
 		p.parseError(fmt.Sprintf("label name %q is reserved", model.MetricNameLabel))
+		p.currentLabelPairs = nil
+		return nil
+	}
+	if !p.scheme.IsValidLabelName(p.currentLabelPair.GetName()) {
+		p.parseError(fmt.Sprintf("invalid label name %q", p.currentLabelPair.GetName()))
+		p.currentLabelPairs = nil
 		return nil
 	}
 	// Special summary/histogram treatment. Don't add 'quantile' and 'le'
 	// labels to 'real' labels.
-	if !(p.currentMF.GetType() == dto.MetricType_SUMMARY && p.currentLabelPair.GetName() == model.QuantileLabel) &&
-		!(p.currentMF.GetType() == dto.MetricType_HISTOGRAM && p.currentLabelPair.GetName() == model.BucketLabel) {
+	if (p.currentMF.GetType() != dto.MetricType_SUMMARY || p.currentLabelPair.GetName() != model.QuantileLabel) &&
+		(p.currentMF.GetType() != dto.MetricType_HISTOGRAM || p.currentLabelPair.GetName() != model.BucketLabel) {
 		p.currentLabelPairs = append(p.currentLabelPairs, p.currentLabelPair)
 	}
 	// Check for duplicate label names.
 	labels := make(map[string]struct{})
 	for _, l := range p.currentLabelPairs {
 		lName := l.GetName()
-		if _, exists := labels[lName]; !exists {
-			labels[lName] = struct{}{}
-		} else {
+		if _, exists := labels[lName]; exists {
 			p.parseError(fmt.Sprintf("duplicate label names for metric %q", p.currentMF.GetName()))
 			p.currentLabelPairs = nil
 			return nil
 		}
+		labels[lName] = struct{}{}
 	}
 	return p.startLabelValue
 }
@@ -440,7 +467,8 @@ func (p *TextParser) readingValue() stateFn {
 	// When we are here, we have read all the labels, so for the
 	// special case of a summary/histogram, we can finally find out
 	// if the metric already exists.
-	if p.currentMF.GetType() == dto.MetricType_SUMMARY {
+	switch p.currentMF.GetType() {
+	case dto.MetricType_SUMMARY:
 		signature := model.LabelsToSignature(p.currentLabels)
 		if summary := p.summaries[signature]; summary != nil {
 			p.currentMetric = summary
@@ -448,7 +476,7 @@ func (p *TextParser) readingValue() stateFn {
 			p.summaries[signature] = p.currentMetric
 			p.currentMF.Metric = append(p.currentMF.Metric, p.currentMetric)
 		}
-	} else if p.currentMF.GetType() == dto.MetricType_HISTOGRAM {
+	case dto.MetricType_HISTOGRAM:
 		signature := model.LabelsToSignature(p.currentLabels)
 		if histogram := p.histograms[signature]; histogram != nil {
 			p.currentMetric = histogram
@@ -456,7 +484,7 @@ func (p *TextParser) readingValue() stateFn {
 			p.histograms[signature] = p.currentMetric
 			p.currentMF.Metric = append(p.currentMF.Metric, p.currentMetric)
 		}
-	} else {
+	default:
 		p.currentMF.Metric = append(p.currentMF.Metric, p.currentMetric)
 	}
 	if p.readTokenUntilWhitespace(); p.err != nil {
@@ -805,6 +833,10 @@ func (p *TextParser) setOrCreateCurrentMF() {
 	p.currentIsHistogramCount = false
 	p.currentIsHistogramSum = false
 	name := p.currentToken.String()
+	if !p.scheme.IsValidMetricName(name) {
+		p.parseError(fmt.Sprintf("invalid metric name %q", name))
+		return
+	}
 	if p.currentMF = p.metricFamiliesByName[name]; p.currentMF != nil {
 		return
 	}
--- a/vendor/github.com/prometheus/common/model/alert.go
+++ b/vendor/github.com/prometheus/common/model/alert.go
@@ -65,7 +65,7 @@ func (a *Alert) Resolved() bool {
 	return a.ResolvedAt(time.Now())
 }

-// ResolvedAt returns true off the activity interval ended before
+// ResolvedAt returns true iff the activity interval ended before
 // the given timestamp.
 func (a *Alert) ResolvedAt(ts time.Time) bool {
 	if a.EndsAt.IsZero() {
--- a/vendor/github.com/prometheus/common/model/labels.go
+++ b/vendor/github.com/prometheus/common/model/labels.go
@@ -22,7 +22,7 @@ import (
 )

 const (
-	// AlertNameLabel is the name of the label containing the an alert's name.
+	// AlertNameLabel is the name of the label containing the alert's name.
 	AlertNameLabel = "alertname"

 	// ExportedLabelPrefix is the prefix to prepend to the label names present in
@@ -32,6 +32,12 @@ const (
 	// MetricNameLabel is the label name indicating the metric name of a
 	// timeseries.
 	MetricNameLabel = "__name__"
+	// MetricTypeLabel is the label name indicating the metric type of
+	// timeseries as per the PROM-39 proposal.
+	MetricTypeLabel = "__type__"
+	// MetricUnitLabel is the label name indicating the metric unit of
+	// timeseries as per the PROM-39 proposal.
+	MetricUnitLabel = "__unit__"

 	// SchemeLabel is the name of the label that holds the scheme on which to
 	// scrape a target.
@@ -100,33 +106,21 @@ type LabelName string
 // IsValid returns true iff the name matches the pattern of LabelNameRE when
 // NameValidationScheme is set to LegacyValidation, or valid UTF-8 if
 // NameValidationScheme is set to UTF8Validation.
+//
+// Deprecated: This method should not be used and may be removed in the future.
+// Use [ValidationScheme.IsValidLabelName] instead.
 func (ln LabelName) IsValid() bool {
-	if len(ln) == 0 {
-		return false
-	}
-	switch NameValidationScheme {
-	case LegacyValidation:
-		return ln.IsValidLegacy()
-	case UTF8Validation:
-		return utf8.ValidString(string(ln))
-	default:
-		panic(fmt.Sprintf("Invalid name validation scheme requested: %d", NameValidationScheme))
-	}
+	return NameValidationScheme.IsValidLabelName(string(ln))
 }

 // IsValidLegacy returns true iff name matches the pattern of LabelNameRE for
 // legacy names. It does not use LabelNameRE for the check but a much faster
 // hardcoded implementation.
+//
+// Deprecated: This method should not be used and may be removed in the future.
+// Use [LegacyValidation.IsValidLabelName] instead.
 func (ln LabelName) IsValidLegacy() bool {
-	if len(ln) == 0 {
-		return false
-	}
-	for i, b := range ln {
-		if !((b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || b == '_' || (b >= '0' && b <= '9' && i > 0)) {
-			return false
-		}
-	}
-	return true
+	return LegacyValidation.IsValidLabelName(string(ln))
 }

 // UnmarshalYAML implements the yaml.Unmarshaler interface.
--- a/vendor/github.com/prometheus/common/model/labelset.go
+++ b/vendor/github.com/prometheus/common/model/labelset.go
@@ -114,10 +114,10 @@ func (ls LabelSet) Clone() LabelSet {
 }

 // Merge is a helper function to non-destructively merge two label sets.
-func (l LabelSet) Merge(other LabelSet) LabelSet {
-	result := make(LabelSet, len(l))
+func (ls LabelSet) Merge(other LabelSet) LabelSet {
+	result := make(LabelSet, len(ls))

-	for k, v := range l {
+	for k, v := range ls {
 		result[k] = v
 	}

@@ -140,7 +140,7 @@ func (ls LabelSet) FastFingerprint() Fingerprint {
 }

 // UnmarshalJSON implements the json.Unmarshaler interface.
-func (l *LabelSet) UnmarshalJSON(b []byte) error {
+func (ls *LabelSet) UnmarshalJSON(b []byte) error {
 	var m map[LabelName]LabelValue
 	if err := json.Unmarshal(b, &m); err != nil {
 		return err
@@ -153,6 +153,6 @@ func (l *LabelSet) UnmarshalJSON(b []byte) error {
 			return fmt.Errorf("%q is not a valid label name", ln)
 		}
 	}
-	*l = LabelSet(m)
+	*ls = LabelSet(m)
 	return nil
 }
--- a/vendor/github.com/prometheus/common/model/metric.go
+++ b/vendor/github.com/prometheus/common/model/metric.go
@@ -14,6 +14,7 @@
 package model

 import (
+	"encoding/json"
 	"errors"
 	"fmt"
 	"regexp"
@@ -23,17 +24,30 @@ import (
 	"unicode/utf8"

 	dto "github.com/prometheus/client_model/go"
+	"go.yaml.in/yaml/v2"
 	"google.golang.org/protobuf/proto"
 )

 var (
-	// NameValidationScheme determines the method of name validation to be used by
-	// all calls to IsValidMetricName() and LabelName IsValid(). Setting UTF-8
-	// mode in isolation from other components that don't support UTF-8 may result
-	// in bugs or other undefined behavior. This value can be set to
-	// LegacyValidation during startup if a binary is not UTF-8-aware binaries. To
-	// avoid need for locking, this value should be set once, ideally in an
-	// init(), before multiple goroutines are started.
+	// NameValidationScheme determines the global default method of the name
+	// validation to be used by all calls to IsValidMetricName() and LabelName
+	// IsValid().
+	//
+	// Deprecated: This variable should not be used and might be removed in the
+	// far future. If you wish to stick to the legacy name validation use
+	// `IsValidLegacyMetricName()` and `LabelName.IsValidLegacy()` methods
+	// instead. This variable is here as an escape hatch for emergency cases,
+	// given the recent change from `LegacyValidation` to `UTF8Validation`, e.g.,
+	// to delay UTF-8 migrations in time or aid in debugging unforeseen results of
+	// the change. In such a case, a temporary assignment to `LegacyValidation`
+	// value in the `init()` function in your main.go or so, could be considered.
+	//
+	// Historically we opted for a global variable for feature gating different
+	// validation schemes in operations that were not otherwise easily adjustable
+	// (e.g. Labels yaml unmarshaling). That could have been a mistake, a separate
+	// Labels structure or package might have been a better choice. Given the
+	// change was made and many upgraded the common already, we live this as-is
+	// with this warning and learning for the future.
 	NameValidationScheme = UTF8Validation

 	// NameEscapingScheme defines the default way that names will be escaped when
@@ -50,16 +64,151 @@ var (
 type ValidationScheme int

 const (
-	// LegacyValidation is a setting that requirets that metric and label names
+	// UnsetValidation represents an undefined ValidationScheme.
+	// Should not be used in practice.
+	UnsetValidation ValidationScheme = iota
+
+	// LegacyValidation is a setting that requires that all metric and label names
 	// conform to the original Prometheus character requirements described by
 	// MetricNameRE and LabelNameRE.
-	LegacyValidation ValidationScheme = iota
+	LegacyValidation

 	// UTF8Validation only requires that metric and label names be valid UTF-8
 	// strings.
 	UTF8Validation
 )

+var _ interface {
+	yaml.Marshaler
+	yaml.Unmarshaler
+	json.Marshaler
+	json.Unmarshaler
+	fmt.Stringer
+} = new(ValidationScheme)
+
+// String returns the string representation of s.
+func (s ValidationScheme) String() string {
+	switch s {
+	case UnsetValidation:
+		return "unset"
+	case LegacyValidation:
+		return "legacy"
+	case UTF8Validation:
+		return "utf8"
+	default:
+		panic(fmt.Errorf("unhandled ValidationScheme: %d", s))
+	}
+}
+
+// MarshalYAML implements the yaml.Marshaler interface.
+func (s ValidationScheme) MarshalYAML() (any, error) {
+	switch s {
+	case UnsetValidation:
+		return "", nil
+	case LegacyValidation, UTF8Validation:
+		return s.String(), nil
+	default:
+		panic(fmt.Errorf("unhandled ValidationScheme: %d", s))
+	}
+}
+
+// UnmarshalYAML implements the yaml.Unmarshaler interface.
+func (s *ValidationScheme) UnmarshalYAML(unmarshal func(any) error) error {
+	var scheme string
+	if err := unmarshal(&scheme); err != nil {
+		return err
+	}
+	return s.Set(scheme)
+}
+
+// MarshalJSON implements the json.Marshaler interface.
+func (s ValidationScheme) MarshalJSON() ([]byte, error) {
+	switch s {
+	case UnsetValidation:
+		return json.Marshal("")
+	case UTF8Validation, LegacyValidation:
+		return json.Marshal(s.String())
+	default:
+		return nil, fmt.Errorf("unhandled ValidationScheme: %d", s)
+	}
+}
+
+// UnmarshalJSON implements the json.Unmarshaler interface.
+func (s *ValidationScheme) UnmarshalJSON(bytes []byte) error {
+	var repr string
+	if err := json.Unmarshal(bytes, &repr); err != nil {
+		return err
+	}
+	return s.Set(repr)
+}
+
+// Set implements the pflag.Value interface.
+func (s *ValidationScheme) Set(text string) error {
+	switch text {
+	case "":
+		// Don't change the value.
+	case LegacyValidation.String():
+		*s = LegacyValidation
+	case UTF8Validation.String():
+		*s = UTF8Validation
+	default:
+		return fmt.Errorf("unrecognized ValidationScheme: %q", text)
+	}
+	return nil
+}
+
+// IsValidMetricName returns whether metricName is valid according to s.
+func (s ValidationScheme) IsValidMetricName(metricName string) bool {
+	switch s {
+	case LegacyValidation:
+		if len(metricName) == 0 {
+			return false
+		}
+		for i, b := range metricName {
+			if !isValidLegacyRune(b, i) {
+				return false
+			}
+		}
+		return true
+	case UTF8Validation:
+		if len(metricName) == 0 {
+			return false
+		}
+		return utf8.ValidString(metricName)
+	default:
+		panic(fmt.Sprintf("Invalid name validation scheme requested: %s", s.String()))
+	}
+}
+
+// IsValidLabelName returns whether labelName is valid according to s.
+func (s ValidationScheme) IsValidLabelName(labelName string) bool {
+	switch s {
+	case LegacyValidation:
+		if len(labelName) == 0 {
+			return false
+		}
+		for i, b := range labelName {
+			// TODO: Apply De Morgan's law. Make sure there are tests for this.
+			if !((b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || b == '_' || (b >= '0' && b <= '9' && i > 0)) { //nolint:staticcheck
+				return false
+			}
+		}
+		return true
+	case UTF8Validation:
+		if len(labelName) == 0 {
+			return false
+		}
+		return utf8.ValidString(labelName)
+	default:
+		panic(fmt.Sprintf("Invalid name validation scheme requested: %s", s))
+	}
+}
+
+// Type implements the pflag.Value interface.
+func (ValidationScheme) Type() string {
+	return "validationScheme"
+}
+
 type EscapingScheme int

 const (
@@ -89,7 +238,7 @@ const (
 	// Accept header, the default NameEscapingScheme will be used.
 	EscapingKey = "escaping"

-	// Possible values for Escaping Key:
+	// Possible values for Escaping Key.
 	AllowUTF8         = "allow-utf-8" // No escaping required.
 	EscapeUnderscores = "underscores"
 	EscapeDots        = "dots"
@@ -163,34 +312,22 @@ func (m Metric) FastFingerprint() Fingerprint {
 // IsValidMetricName returns true iff name matches the pattern of MetricNameRE
 // for legacy names, and iff it's valid UTF-8 if the UTF8Validation scheme is
 // selected.
+//
+// Deprecated: This function should not be used and might be removed in the future.
+// Use [ValidationScheme.IsValidMetricName] instead.
 func IsValidMetricName(n LabelValue) bool {
-	switch NameValidationScheme {
-	case LegacyValidation:
-		return IsValidLegacyMetricName(string(n))
-	case UTF8Validation:
-		if len(n) == 0 {
-			return false
-		}
-		return utf8.ValidString(string(n))
-	default:
-		panic(fmt.Sprintf("Invalid name validation scheme requested: %d", NameValidationScheme))
-	}
+	return NameValidationScheme.IsValidMetricName(string(n))
 }

 // IsValidLegacyMetricName is similar to IsValidMetricName but always uses the
 // legacy validation scheme regardless of the value of NameValidationScheme.
 // This function, however, does not use MetricNameRE for the check but a much
 // faster hardcoded implementation.
+//
+// Deprecated: This function should not be used and might be removed in the future.
+// Use [LegacyValidation.IsValidMetricName] instead.
 func IsValidLegacyMetricName(n string) bool {
-	if len(n) == 0 {
-		return false
-	}
-	for i, b := range n {
-		if !isValidLegacyRune(b, i) {
-			return false
-		}
-	}
-	return true
+	return LegacyValidation.IsValidMetricName(n)
 }

 // EscapeMetricFamily escapes the given metric names and labels with the given
@@ -298,13 +435,14 @@ func EscapeName(name string, scheme EscapingScheme) string {
 	case DotsEscaping:
 		// Do not early return for legacy valid names, we still escape underscores.
 		for i, b := range name {
-			if b == '_' {
+			switch {
+			case b == '_':
 				escaped.WriteString("__")
-			} else if b == '.' {
+			case b == '.':
 				escaped.WriteString("_dot_")
-			} else if isValidLegacyRune(b, i) {
+			case isValidLegacyRune(b, i):
 				escaped.WriteRune(b)
-			} else {
+			default:
 				escaped.WriteString("__")
 			}
 		}
@@ -315,13 +453,14 @@ func EscapeName(name string, scheme EscapingScheme) string {
 		}
 		escaped.WriteString("U__")
 		for i, b := range name {
-			if b == '_' {
+			switch {
+			case b == '_':
 				escaped.WriteString("__")
-			} else if isValidLegacyRune(b, i) {
+			case isValidLegacyRune(b, i):
 				escaped.WriteRune(b)
-			} else if !utf8.ValidRune(b) {
+			case !utf8.ValidRune(b):
 				escaped.WriteString("_FFFD_")
-			} else {
+			default:
 				escaped.WriteRune('_')
 				escaped.WriteString(strconv.FormatInt(int64(b), 16))
 				escaped.WriteRune('_')
@@ -333,7 +472,7 @@ func EscapeName(name string, scheme EscapingScheme) string {
 	}
 }

-// lower function taken from strconv.atoi
+// lower function taken from strconv.atoi.
 func lower(c byte) byte {
 	return c | ('x' - 'X')
 }
@@ -397,11 +536,12 @@ func UnescapeName(name string, scheme EscapingScheme) string {
 				}
 				r := lower(escapedName[i])
 				utf8Val *= 16
-				if r >= '0' && r <= '9' {
+				switch {
+				case r >= '0' && r <= '9':
 					utf8Val += uint(r) - '0'
-				} else if r >= 'a' && r <= 'f' {
+				case r >= 'a' && r <= 'f':
 					utf8Val += uint(r) - 'a' + 10
-				} else {
+				default:
 					return name
 				}
 				i++
--- a/vendor/github.com/prometheus/common/model/time.go
+++ b/vendor/github.com/prometheus/common/model/time.go
@@ -126,14 +126,14 @@ func (t *Time) UnmarshalJSON(b []byte) error {
 	p := strings.Split(string(b), ".")
 	switch len(p) {
 	case 1:
-		v, err := strconv.ParseInt(string(p[0]), 10, 64)
+		v, err := strconv.ParseInt(p[0], 10, 64)
 		if err != nil {
 			return err
 		}
 		*t = Time(v * second)

 	case 2:
-		v, err := strconv.ParseInt(string(p[0]), 10, 64)
+		v, err := strconv.ParseInt(p[0], 10, 64)
 		if err != nil {
 			return err
 		}
@@ -143,7 +143,7 @@ func (t *Time) UnmarshalJSON(b []byte) error {
 		if prec < 0 {
 			p[1] = p[1][:dotPrecision]
 		} else if prec > 0 {
-			p[1] = p[1] + strings.Repeat("0", prec)
+			p[1] += strings.Repeat("0", prec)
 		}

 		va, err := strconv.ParseInt(p[1], 10, 32)
@@ -170,15 +170,15 @@ func (t *Time) UnmarshalJSON(b []byte) error {
 // This type should not propagate beyond the scope of input/output processing.
 type Duration time.Duration

-// Set implements pflag/flag.Value
+// Set implements pflag/flag.Value.
 func (d *Duration) Set(s string) error {
 	var err error
 	*d, err = ParseDuration(s)
 	return err
 }

-// Type implements pflag.Value
-func (d *Duration) Type() string {
+// Type implements pflag.Value.
+func (*Duration) Type() string {
 	return "duration"
 }

@@ -201,6 +201,7 @@ var unitMap = map[string]struct {

 // ParseDuration parses a string into a time.Duration, assuming that a year
 // always has 365d, a week always has 7d, and a day always has 24h.
+// Negative durations are not supported.
 func ParseDuration(s string) (Duration, error) {
 	switch s {
 	case "0":
@@ -253,18 +254,36 @@ func ParseDuration(s string) (Duration, error) {
 			return 0, errors.New("duration out of range")
 		}
 	}
+
 	return Duration(dur), nil
 }

+// ParseDurationAllowNegative is like ParseDuration but also accepts negative durations.
+func ParseDurationAllowNegative(s string) (Duration, error) {
+	if s == "" || s[0] != '-' {
+		return ParseDuration(s)
+	}
+
+	d, err := ParseDuration(s[1:])
+
+	return -d, err
+}
+
 func (d Duration) String() string {
 	var (
 		ms   = int64(time.Duration(d) / time.Millisecond)
 		r    = ""
+		sign = ""
 	)
+
 	if ms == 0 {
 		return "0s"
 	}

+	if ms < 0 {
+		sign, ms = "-", -ms
+	}
+
 	f := func(unit string, mult int64, exact bool) {
 		if exact && ms%mult != 0 {
 			return
@@ -286,7 +305,7 @@ func (d Duration) String() string {
 	f("s", 1000, false)
 	f("ms", 1, false)

-	return r
+	return sign + r
 }

 // MarshalJSON implements the json.Marshaler interface.
--- a/vendor/github.com/prometheus/common/model/value.go
+++ b/vendor/github.com/prometheus/common/model/value.go
@@ -191,7 +191,8 @@ func (ss SampleStream) String() string {
 }

 func (ss SampleStream) MarshalJSON() ([]byte, error) {
-	if len(ss.Histograms) > 0 && len(ss.Values) > 0 {
+	switch {
+	case len(ss.Histograms) > 0 && len(ss.Values) > 0:
 		v := struct {
 			Metric     Metric                `json:"metric"`
 			Values     []SamplePair          `json:"values"`
@@ -202,7 +203,7 @@ func (ss SampleStream) MarshalJSON() ([]byte, error) {
 			Histograms: ss.Histograms,
 		}
 		return json.Marshal(&v)
-	} else if len(ss.Histograms) > 0 {
+	case len(ss.Histograms) > 0:
 		v := struct {
 			Metric     Metric                `json:"metric"`
 			Histograms []SampleHistogramPair `json:"histograms"`
@@ -211,7 +212,7 @@ func (ss SampleStream) MarshalJSON() ([]byte, error) {
 			Histograms: ss.Histograms,
 		}
 		return json.Marshal(&v)
-	} else {
+	default:
 		v := struct {
 			Metric Metric       `json:"metric"`
 			Values []SamplePair `json:"values"`
@@ -258,7 +259,7 @@ func (s Scalar) String() string {
 // MarshalJSON implements json.Marshaler.
 func (s Scalar) MarshalJSON() ([]byte, error) {
 	v := strconv.FormatFloat(float64(s.Value), 'f', -1, 64)
-	return json.Marshal([...]interface{}{s.Timestamp, string(v)})
+	return json.Marshal([...]interface{}{s.Timestamp, v})
 }

 // UnmarshalJSON implements json.Unmarshaler.
@@ -349,9 +350,9 @@ func (m Matrix) Len() int           { return len(m) }
 func (m Matrix) Less(i, j int) bool { return m[i].Metric.Before(m[j].Metric) }
 func (m Matrix) Swap(i, j int)      { m[i], m[j] = m[j], m[i] }

-func (mat Matrix) String() string {
-	matCp := make(Matrix, len(mat))
-	copy(matCp, mat)
+func (m Matrix) String() string {
+	matCp := make(Matrix, len(m))
+	copy(matCp, m)
 	sort.Sort(matCp)

 	strs := make([]string, len(matCp))
--- a/vendor/github.com/prometheus/common/model/value_histogram.go
+++ b/vendor/github.com/prometheus/common/model/value_histogram.go
@@ -86,22 +86,22 @@ func (s *HistogramBucket) Equal(o *HistogramBucket) bool {
 	return s == o || (s.Boundaries == o.Boundaries && s.Lower == o.Lower && s.Upper == o.Upper && s.Count == o.Count)
 }

-func (b HistogramBucket) String() string {
+func (s HistogramBucket) String() string {
 	var sb strings.Builder
-	lowerInclusive := b.Boundaries == 1 || b.Boundaries == 3
-	upperInclusive := b.Boundaries == 0 || b.Boundaries == 3
+	lowerInclusive := s.Boundaries == 1 || s.Boundaries == 3
+	upperInclusive := s.Boundaries == 0 || s.Boundaries == 3
 	if lowerInclusive {
 		sb.WriteRune('[')
 	} else {
 		sb.WriteRune('(')
 	}
-	fmt.Fprintf(&sb, "%g,%g", b.Lower, b.Upper)
+	fmt.Fprintf(&sb, "%g,%g", s.Lower, s.Upper)
 	if upperInclusive {
 		sb.WriteRune(']')
 	} else {
 		sb.WriteRune(')')
 	}
-	fmt.Fprintf(&sb, ":%v", b.Count)
+	fmt.Fprintf(&sb, ":%v", s.Count)
 	return sb.String()
 }

--- a/vendor/github.com/prometheus/common/model/value_type.go
+++ b/vendor/github.com/prometheus/common/model/value_type.go
@@ -66,8 +66,8 @@ func (et *ValueType) UnmarshalJSON(b []byte) error {
 	return nil
 }

-func (e ValueType) String() string {
-	switch e {
+func (et ValueType) String() string {
+	switch et {
 	case ValNone:
 		return "<ValNone>"
 	case ValScalar:
--- a/vendor/github.com/prometheus/procfs/.golangci.yml
+++ b/vendor/github.com/prometheus/procfs/.golangci.yml
@@ -1,22 +1,45 @@
---
+version: "2"
 linters:
  enable:
-  - errcheck
+    - forbidigo
    - godot
-  - gosimple
-  - govet
-  - ineffassign
    - misspell
    - revive
-  - staticcheck
    - testifylint
-  - unused
-
-linter-settings:
+  settings:
+    forbidigo:
+      forbid:
+        - pattern: ^fmt\.Print.*$
+          msg: Do not commit print statements.
    godot:
-    capital: true
      exclude:
-    # Ignore "See: URL"
+        # Ignore "See: URL".
        - 'See:'
+      capital: true
    misspell:
      locale: US
+  exclusions:
+    generated: lax
+    presets:
+      - comments
+      - common-false-positives
+      - legacy
+      - std-error-handling
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
+formatters:
+  enable:
+    - gofmt
+    - goimports
+  settings:
+    goimports:
+      local-prefixes:
+        - github.com/prometheus/procfs
+  exclusions:
+    generated: lax
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
--- a/vendor/github.com/prometheus/procfs/Makefile.common
+++ b/vendor/github.com/prometheus/procfs/Makefile.common
@@ -33,7 +33,7 @@ GOHOSTOS     ?= $(shell $(GO) env GOHOSTOS)
 GOHOSTARCH   ?= $(shell $(GO) env GOHOSTARCH)

 GO_VERSION        ?= $(shell $(GO) version)
-GO_VERSION_NUMBER ?= $(word 3, $(GO_VERSION))
+GO_VERSION_NUMBER ?= $(word 3, $(GO_VERSION))Error Parsing File
 PRE_GO_111        ?= $(shell echo $(GO_VERSION_NUMBER) | grep -E 'go1\.(10|[0-9])\.')

 PROMU        := $(FIRST_GOPATH)/bin/promu
@@ -61,7 +61,7 @@ PROMU_URL     := https://github.com/prometheus/promu/releases/download/v$(PROMU_
 SKIP_GOLANGCI_LINT :=
 GOLANGCI_LINT :=
 GOLANGCI_LINT_OPTS ?=
-GOLANGCI_LINT_VERSION ?= v1.59.0
+GOLANGCI_LINT_VERSION ?= v2.0.2
 # golangci-lint only supports linux, darwin and windows platforms on i386/amd64/arm64.
 # windows isn't included here because of the path separator being different.
 ifeq ($(GOHOSTOS),$(filter $(GOHOSTOS),linux darwin))
@@ -275,3 +275,9 @@ $(1)_precheck:
 		exit 1; \
 	fi
 endef
+
+govulncheck: install-govulncheck
+	govulncheck ./...
+
+install-govulncheck:
+	command -v govulncheck > /dev/null || go install golang.org/x/vuln/cmd/govulncheck@latest
--- a/vendor/github.com/prometheus/procfs/README.md
+++ b/vendor/github.com/prometheus/procfs/README.md
@@ -47,15 +47,15 @@ However, most of the API includes unit tests which can be run with `make test`.
 The procfs library includes a set of test fixtures which include many example files from
 the `/proc` and `/sys` filesystems.  These fixtures are included as a [ttar](https://github.com/ideaship/ttar) file
 which is extracted automatically during testing.  To add/update the test fixtures, first
-ensure the `fixtures` directory is up to date by removing the existing directory and then
-extracting the ttar file using `make fixtures/.unpacked` or just `make test`.
+ensure the `testdata/fixtures` directory is up to date by removing the existing directory and then
+extracting the ttar file using `make testdata/fixtures/.unpacked` or just `make test`.

 ```bash
 rm -rf testdata/fixtures
 make test
 ```

-Next, make the required changes to the extracted files in the `fixtures` directory.  When
+Next, make the required changes to the extracted files in the `testdata/fixtures` directory.  When
 the changes are complete, run `make update_fixtures` to create a new `fixtures.ttar` file
 based on the updated `fixtures` directory.  And finally, verify the changes using
 `git diff testdata/fixtures.ttar`.
--- a/vendor/github.com/prometheus/procfs/arp.go
+++ b/vendor/github.com/prometheus/procfs/arp.go
@@ -23,9 +23,9 @@ import (

 // Learned from include/uapi/linux/if_arp.h.
 const (
-	// completed entry (ha valid).
+	// Completed entry (ha valid).
 	ATFComplete = 0x02
-	// permanent entry.
+	// Permanent entry.
 	ATFPermanent = 0x04
 	// Publish entry.
 	ATFPublish = 0x08
--- a/vendor/github.com/prometheus/procfs/fs.go
+++ b/vendor/github.com/prometheus/procfs/fs.go
@@ -24,8 +24,14 @@ type FS struct {
 	isReal bool
 }

+const (
 	// DefaultMountPoint is the common mount point of the proc filesystem.
-const DefaultMountPoint = fs.DefaultProcMountPoint
+	DefaultMountPoint = fs.DefaultProcMountPoint
+
+	// SectorSize represents the size of a sector in bytes.
+	// It is specific to Linux block I/O operations.
+	SectorSize = 512
+)

 // NewDefaultFS returns a new proc FS mounted under the default proc mountPoint.
 // It will error if the mount point directory can't be read or is a file.
--- a/vendor/github.com/prometheus/procfs/fs_statfs_notype.go
+++ b/vendor/github.com/prometheus/procfs/fs_statfs_notype.go
@@ -17,7 +17,7 @@
 package procfs

 // isRealProc returns true on architectures that don't have a Type argument
-// in their Statfs_t struct
-func isRealProc(mountPoint string) (bool, error) {
+// in their Statfs_t struct.
+func isRealProc(_ string) (bool, error) {
 	return true, nil
 }
--- a/vendor/github.com/prometheus/procfs/fscache.go
+++ b/vendor/github.com/prometheus/procfs/fscache.go
@@ -162,7 +162,7 @@ type Fscacheinfo struct {
 	ReleaseRequestsAgainstPagesStoredByTimeLockGranted uint64
 	// Number of release reqs ignored due to in-progress store
 	ReleaseRequestsIgnoredDueToInProgressStore uint64
-	// Number of page stores cancelled due to release req
+	// Number of page stores canceled due to release req
 	PageStoresCancelledByReleaseRequests uint64
 	VmscanWaiting                        uint64
 	// Number of times async ops added to pending queues
@@ -171,11 +171,11 @@ type Fscacheinfo struct {
 	OpsRunning uint64
 	// Number of times async ops queued for processing
 	OpsEnqueued uint64
-	// Number of async ops cancelled
+	// Number of async ops canceled
 	OpsCancelled uint64
 	// Number of async ops rejected due to object lookup/create failure
 	OpsRejected uint64
-	// Number of async ops initialised
+	// Number of async ops initialized
 	OpsInitialised uint64
 	// Number of async ops queued for deferred release
 	OpsDeferred uint64
--- a/vendor/github.com/prometheus/procfs/internal/fs/fs.go
+++ b/vendor/github.com/prometheus/procfs/internal/fs/fs.go
@@ -28,6 +28,9 @@ const (

 	// DefaultConfigfsMountPoint is the common mount point of the configfs.
 	DefaultConfigfsMountPoint = "/sys/kernel/config"
+
+	// DefaultSelinuxMountPoint is the common mount point of the selinuxfs.
+	DefaultSelinuxMountPoint = "/sys/fs/selinux"
 )

 // FS represents a pseudo-filesystem, normally /proc or /sys, which provides an
--- a/vendor/github.com/prometheus/procfs/internal/util/parse.go
+++ b/vendor/github.com/prometheus/procfs/internal/util/parse.go
@@ -14,6 +14,7 @@
 package util

 import (
+	"errors"
 	"os"
 	"strconv"
 	"strings"
@@ -110,3 +111,16 @@ func ParseBool(b string) *bool {
 	}
 	return &truth
 }
+
+// ReadHexFromFile reads a file and attempts to parse a uint64 from a hexadecimal format 0xXX.
+func ReadHexFromFile(path string) (uint64, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return 0, err
+	}
+	hexString := strings.TrimSpace(string(data))
+	if !strings.HasPrefix(hexString, "0x") {
+		return 0, errors.New("invalid format: hex string does not start with '0x'")
+	}
+	return strconv.ParseUint(hexString[2:], 16, 64)
+}
--- a/vendor/github.com/prometheus/procfs/internal/util/sysreadfile.go
+++ b/vendor/github.com/prometheus/procfs/internal/util/sysreadfile.go
@@ -20,6 +20,8 @@ package util
 import (
 	"bytes"
 	"os"
+	"strconv"
+	"strings"
 	"syscall"
 )

@@ -48,3 +50,21 @@ func SysReadFile(file string) (string, error) {

 	return string(bytes.TrimSpace(b[:n])), nil
 }
+
+// SysReadUintFromFile reads a file using SysReadFile and attempts to parse a uint64 from it.
+func SysReadUintFromFile(path string) (uint64, error) {
+	data, err := SysReadFile(path)
+	if err != nil {
+		return 0, err
+	}
+	return strconv.ParseUint(strings.TrimSpace(string(data)), 10, 64)
+}
+
+// SysReadIntFromFile reads a file using SysReadFile and attempts to parse a int64 from it.
+func SysReadIntFromFile(path string) (int64, error) {
+	data, err := SysReadFile(path)
+	if err != nil {
+		return 0, err
+	}
+	return strconv.ParseInt(strings.TrimSpace(string(data)), 10, 64)
+}
--- a/vendor/github.com/prometheus/procfs/mountstats.go
+++ b/vendor/github.com/prometheus/procfs/mountstats.go
@@ -45,11 +45,11 @@ const (
 	fieldTransport11TCPLen = 13
 	fieldTransport11UDPLen = 10

-	// kernel version >= 4.14 MaxLen
+	// Kernel version >= 4.14 MaxLen
 	// See: https://elixir.bootlin.com/linux/v6.4.8/source/net/sunrpc/xprtrdma/xprt_rdma.h#L393
 	fieldTransport11RDMAMaxLen = 28

-	// kernel version <= 4.2 MinLen
+	// Kernel version <= 4.2 MinLen
 	// See: https://elixir.bootlin.com/linux/v4.2.8/source/net/sunrpc/xprtrdma/xprt_rdma.h#L331
 	fieldTransport11RDMAMinLen = 20
 )
@@ -601,11 +601,12 @@ func parseNFSTransportStats(ss []string, statVersion string) (*NFSTransportStats
 	switch statVersion {
 	case statVersion10:
 		var expectedLength int
-		if protocol == "tcp" {
+		switch protocol {
+		case "tcp":
 			expectedLength = fieldTransport10TCPLen
-		} else if protocol == "udp" {
+		case "udp":
 			expectedLength = fieldTransport10UDPLen
-		} else {
+		default:
 			return nil, fmt.Errorf("%w: Invalid NFS protocol \"%s\" in stats 1.0 statement: %v", ErrFileParse, protocol, ss)
 		}
 		if len(ss) != expectedLength {
@@ -613,13 +614,14 @@ func parseNFSTransportStats(ss []string, statVersion string) (*NFSTransportStats
 		}
 	case statVersion11:
 		var expectedLength int
-		if protocol == "tcp" {
+		switch protocol {
+		case "tcp":
 			expectedLength = fieldTransport11TCPLen
-		} else if protocol == "udp" {
+		case "udp":
 			expectedLength = fieldTransport11UDPLen
-		} else if protocol == "rdma" {
+		case "rdma":
 			expectedLength = fieldTransport11RDMAMinLen
-		} else {
+		default:
 			return nil, fmt.Errorf("%w: invalid NFS protocol \"%s\" in stats 1.1 statement: %v", ErrFileParse, protocol, ss)
 		}
 		if (len(ss) != expectedLength && (protocol == "tcp" || protocol == "udp")) ||
@@ -655,11 +657,12 @@ func parseNFSTransportStats(ss []string, statVersion string) (*NFSTransportStats
 	// For the udp RPC transport there is no connection count, connect idle time,
 	// or idle time (fields #3, #4, and #5); all other fields are the same. So
 	// we set them to 0 here.
-	if protocol == "udp" {
+	switch protocol {
+	case "udp":
 		ns = append(ns[:2], append(make([]uint64, 3), ns[2:]...)...)
-	} else if protocol == "tcp" {
+	case "tcp":
 		ns = append(ns[:fieldTransport11TCPLen], make([]uint64, fieldTransport11RDMAMaxLen-fieldTransport11TCPLen+3)...)
-	} else if protocol == "rdma" {
+	case "rdma":
 		ns = append(ns[:fieldTransport10TCPLen], append(make([]uint64, 3), ns[fieldTransport10TCPLen:]...)...)
 	}

--- a/vendor/github.com/prometheus/procfs/net_dev_snmp6.go
+++ b/vendor/github.com/prometheus/procfs/net_dev_snmp6.go
@@ -0,0 +1,96 @@
+// Copyright 2018 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package procfs
+
+import (
+	"bufio"
+	"errors"
+	"io"
+	"os"
+	"strconv"
+	"strings"
+)
+
+// NetDevSNMP6 is parsed from files in /proc/net/dev_snmp6/ or /proc/<PID>/net/dev_snmp6/.
+// The outer map's keys are interface names and the inner map's keys are stat names.
+//
+// If you'd like a total across all interfaces, please use the Snmp6() method of the Proc type.
+type NetDevSNMP6 map[string]map[string]uint64
+
+// Returns kernel/system statistics read from interface files within the /proc/net/dev_snmp6/
+// directory.
+func (fs FS) NetDevSNMP6() (NetDevSNMP6, error) {
+	return newNetDevSNMP6(fs.proc.Path("net/dev_snmp6"))
+}
+
+// Returns kernel/system statistics read from interface files within the /proc/<PID>/net/dev_snmp6/
+// directory.
+func (p Proc) NetDevSNMP6() (NetDevSNMP6, error) {
+	return newNetDevSNMP6(p.path("net/dev_snmp6"))
+}
+
+// newNetDevSNMP6 creates a new NetDevSNMP6 from the contents of the given directory.
+func newNetDevSNMP6(dir string) (NetDevSNMP6, error) {
+	netDevSNMP6 := make(NetDevSNMP6)
+
+	// The net/dev_snmp6 folders contain one file per interface
+	ifaceFiles, err := os.ReadDir(dir)
+	if err != nil {
+		// On systems with IPv6 disabled, this directory won't exist.
+		// Do nothing.
+		if errors.Is(err, os.ErrNotExist) {
+			return netDevSNMP6, err
+		}
+		return netDevSNMP6, err
+	}
+
+	for _, iFaceFile := range ifaceFiles {
+		f, err := os.Open(dir + "/" + iFaceFile.Name())
+		if err != nil {
+			return netDevSNMP6, err
+		}
+		defer f.Close()
+
+		netDevSNMP6[iFaceFile.Name()], err = parseNetDevSNMP6Stats(f)
+		if err != nil {
+			return netDevSNMP6, err
+		}
+	}
+
+	return netDevSNMP6, nil
+}
+
+func parseNetDevSNMP6Stats(r io.Reader) (map[string]uint64, error) {
+	m := make(map[string]uint64)
+
+	scanner := bufio.NewScanner(r)
+	for scanner.Scan() {
+		stat := strings.Fields(scanner.Text())
+		if len(stat) < 2 {
+			continue
+		}
+		key, val := stat[0], stat[1]
+
+		// Expect stat name to contain "6" or be "ifIndex"
+		if strings.Contains(key, "6") || key == "ifIndex" {
+			v, err := strconv.ParseUint(val, 10, 64)
+			if err != nil {
+				return m, err
+			}
+
+			m[key] = v
+		}
+	}
+	return m, scanner.Err()
+}
--- a/vendor/github.com/prometheus/procfs/net_ip_socket.go
+++ b/vendor/github.com/prometheus/procfs/net_ip_socket.go
@@ -25,7 +25,7 @@ import (
 )

 const (
-	// readLimit is used by io.LimitReader while reading the content of the
+	// Maximum size limit used by io.LimitReader while reading the content of the
 	// /proc/net/udp{,6} files. The number of lines inside such a file is dynamic
 	// as each line represents a single used socket.
 	// In theory, the number of available sockets is 65535 (2^16 - 1) per IP.
@@ -50,12 +50,12 @@ type (
 		// UsedSockets shows the total number of parsed lines representing the
 		// number of used sockets.
 		UsedSockets uint64
-		// Drops shows the total number of dropped packets of all UPD sockets.
+		// Drops shows the total number of dropped packets of all UDP sockets.
 		Drops *uint64
 	}

-	// netIPSocketLine represents the fields parsed from a single line
-	// in /proc/net/{t,u}dp{,6}. Fields which are not used by IPSocket are skipped.
+	// A single line parser for fields from /proc/net/{t,u}dp{,6}.
+	// Fields which are not used by IPSocket are skipped.
 	// Drops is non-nil for udp{,6}, but nil for tcp{,6}.
 	// For the proc file format details, see https://linux.die.net/man/5/proc.
 	netIPSocketLine struct {
--- a/vendor/github.com/prometheus/procfs/net_protocols.go
+++ b/vendor/github.com/prometheus/procfs/net_protocols.go
@@ -115,22 +115,24 @@ func (ps NetProtocolStats) parseLine(rawLine string) (*NetProtocolStatLine, erro
 	if err != nil {
 		return nil, err
 	}
-	if fields[4] == enabled {
+	switch fields[4] {
+	case enabled:
 		line.Pressure = 1
-	} else if fields[4] == disabled {
+	case disabled:
 		line.Pressure = 0
-	} else {
+	default:
 		line.Pressure = -1
 	}
 	line.MaxHeader, err = strconv.ParseUint(fields[5], 10, 64)
 	if err != nil {
 		return nil, err
 	}
-	if fields[6] == enabled {
+	switch fields[6] {
+	case enabled:
 		line.Slab = true
-	} else if fields[6] == disabled {
+	case disabled:
 		line.Slab = false
-	} else {
+	default:
 		return nil, fmt.Errorf("%w: capability for protocol: %s", ErrFileParse, line.Name)
 	}
 	line.ModuleName = fields[7]
@@ -168,11 +170,12 @@ func (pc *NetProtocolCapabilities) parseCapabilities(capabilities []string) erro
 	}

 	for i := 0; i < len(capabilities); i++ {
-		if capabilities[i] == "y" {
+		switch capabilities[i] {
+		case "y":
 			*capabilityFields[i] = true
-		} else if capabilities[i] == "n" {
+		case "n":
 			*capabilityFields[i] = false
-		} else {
+		default:
 			return fmt.Errorf("%w: capability block for protocol: position %d", ErrFileParse, i)
 		}
 	}
--- a/vendor/github.com/prometheus/procfs/net_tcp.go
+++ b/vendor/github.com/prometheus/procfs/net_tcp.go
@@ -25,24 +25,28 @@ type (

 // NetTCP returns the IPv4 kernel/networking statistics for TCP datagrams
 // read from /proc/net/tcp.
+// Deprecated: Use github.com/mdlayher/netlink#Conn (with syscall.AF_INET) instead.
 func (fs FS) NetTCP() (NetTCP, error) {
 	return newNetTCP(fs.proc.Path("net/tcp"))
 }

 // NetTCP6 returns the IPv6 kernel/networking statistics for TCP datagrams
 // read from /proc/net/tcp6.
+// Deprecated: Use github.com/mdlayher/netlink#Conn (with syscall.AF_INET6) instead.
 func (fs FS) NetTCP6() (NetTCP, error) {
 	return newNetTCP(fs.proc.Path("net/tcp6"))
 }

 // NetTCPSummary returns already computed statistics like the total queue lengths
 // for TCP datagrams read from /proc/net/tcp.
+// Deprecated: Use github.com/mdlayher/netlink#Conn (with syscall.AF_INET) instead.
 func (fs FS) NetTCPSummary() (*NetTCPSummary, error) {
 	return newNetTCPSummary(fs.proc.Path("net/tcp"))
 }

 // NetTCP6Summary returns already computed statistics like the total queue lengths
 // for TCP datagrams read from /proc/net/tcp6.
+// Deprecated: Use github.com/mdlayher/netlink#Conn (with syscall.AF_INET6) instead.
 func (fs FS) NetTCP6Summary() (*NetTCPSummary, error) {
 	return newNetTCPSummary(fs.proc.Path("net/tcp6"))
 }
--- a/vendor/github.com/prometheus/procfs/net_unix.go
+++ b/vendor/github.com/prometheus/procfs/net_unix.go
@@ -121,12 +121,12 @@ func parseNetUNIX(r io.Reader) (*NetUNIX, error) {
 	return &nu, nil
 }

-func (u *NetUNIX) parseLine(line string, hasInode bool, min int) (*NetUNIXLine, error) {
+func (u *NetUNIX) parseLine(line string, hasInode bool, minFields int) (*NetUNIXLine, error) {
 	fields := strings.Fields(line)

 	l := len(fields)
-	if l < min {
-		return nil, fmt.Errorf("%w: expected at least %d fields but got %d", ErrFileParse, min, l)
+	if l < minFields {
+		return nil, fmt.Errorf("%w: expected at least %d fields but got %d", ErrFileParse, minFields, l)
 	}

 	// Field offsets are as follows:
@@ -172,7 +172,7 @@ func (u *NetUNIX) parseLine(line string, hasInode bool, min int) (*NetUNIXLine,
 	}

 	// Path field is optional.
-	if l > min {
+	if l > minFields {
 		// Path occurs at either index 6 or 7 depending on whether inode is
 		// already present.
 		pathIdx := 7
--- a/vendor/github.com/prometheus/procfs/proc.go
+++ b/vendor/github.com/prometheus/procfs/proc.go
@@ -37,9 +37,9 @@ type Proc struct {
 type Procs []Proc

 var (
-	ErrFileParse  = errors.New("Error Parsing File")
-	ErrFileRead   = errors.New("Error Reading File")
-	ErrMountPoint = errors.New("Error Accessing Mount point")
+	ErrFileParse  = errors.New("error parsing file")
+	ErrFileRead   = errors.New("error reading file")
+	ErrMountPoint = errors.New("error accessing mount point")
 )

 func (p Procs) Len() int           { return len(p) }
@@ -79,7 +79,7 @@ func (fs FS) Self() (Proc, error) {
 	if err != nil {
 		return Proc{}, err
 	}
-	pid, err := strconv.Atoi(strings.Replace(p, string(fs.proc), "", -1))
+	pid, err := strconv.Atoi(strings.ReplaceAll(p, string(fs.proc), ""))
 	if err != nil {
 		return Proc{}, err
 	}
--- a/vendor/github.com/prometheus/procfs/proc_cgroup.go
+++ b/vendor/github.com/prometheus/procfs/proc_cgroup.go
@@ -24,7 +24,7 @@ import (
 )

 // Cgroup models one line from /proc/[pid]/cgroup. Each Cgroup struct describes the placement of a PID inside a
-// specific control hierarchy. The kernel has two cgroup APIs, v1 and v2. v1 has one hierarchy per available resource
+// specific control hierarchy. The kernel has two cgroup APIs, v1 and v2. The v1 has one hierarchy per available resource
 // controller, while v2 has one unified hierarchy shared by all controllers. Regardless of v1 or v2, all hierarchies
 // contain all running processes, so the question answerable with a Cgroup struct is 'where is this process in
 // this hierarchy' (where==what path on the specific cgroupfs). By prefixing this path with the mount point of
--- a/vendor/github.com/prometheus/procfs/proc_io.go
+++ b/vendor/github.com/prometheus/procfs/proc_io.go
@@ -50,7 +50,7 @@ func (p Proc) IO() (ProcIO, error) {

 	ioFormat := "rchar: %d\nwchar: %d\nsyscr: %d\nsyscw: %d\n" +
 		"read_bytes: %d\nwrite_bytes: %d\n" +
-		"cancelled_write_bytes: %d\n"
+		"cancelled_write_bytes: %d\n" //nolint:misspell

 	_, err = fmt.Sscanf(string(data), ioFormat, &pio.RChar, &pio.WChar, &pio.SyscR,
 		&pio.SyscW, &pio.ReadBytes, &pio.WriteBytes, &pio.CancelledWriteBytes)
--- a/vendor/github.com/prometheus/procfs/proc_netstat.go
+++ b/vendor/github.com/prometheus/procfs/proc_netstat.go
@@ -209,232 +209,232 @@ func parseProcNetstat(r io.Reader, fileName string) (ProcNetstat, error) {
 			case "TcpExt":
 				switch key {
 				case "SyncookiesSent":
-					procNetstat.TcpExt.SyncookiesSent = &value
+					procNetstat.SyncookiesSent = &value
 				case "SyncookiesRecv":
-					procNetstat.TcpExt.SyncookiesRecv = &value
+					procNetstat.SyncookiesRecv = &value
 				case "SyncookiesFailed":
-					procNetstat.TcpExt.SyncookiesFailed = &value
+					procNetstat.SyncookiesFailed = &value
 				case "EmbryonicRsts":
-					procNetstat.TcpExt.EmbryonicRsts = &value
+					procNetstat.EmbryonicRsts = &value
 				case "PruneCalled":
-					procNetstat.TcpExt.PruneCalled = &value
+					procNetstat.PruneCalled = &value
 				case "RcvPruned":
-					procNetstat.TcpExt.RcvPruned = &value
+					procNetstat.RcvPruned = &value
 				case "OfoPruned":
-					procNetstat.TcpExt.OfoPruned = &value
+					procNetstat.OfoPruned = &value
 				case "OutOfWindowIcmps":
-					procNetstat.TcpExt.OutOfWindowIcmps = &value
+					procNetstat.OutOfWindowIcmps = &value
 				case "LockDroppedIcmps":
-					procNetstat.TcpExt.LockDroppedIcmps = &value
+					procNetstat.LockDroppedIcmps = &value
 				case "ArpFilter":
-					procNetstat.TcpExt.ArpFilter = &value
+					procNetstat.ArpFilter = &value
 				case "TW":
-					procNetstat.TcpExt.TW = &value
+					procNetstat.TW = &value
 				case "TWRecycled":
-					procNetstat.TcpExt.TWRecycled = &value
+					procNetstat.TWRecycled = &value
 				case "TWKilled":
-					procNetstat.TcpExt.TWKilled = &value
+					procNetstat.TWKilled = &value
 				case "PAWSActive":
-					procNetstat.TcpExt.PAWSActive = &value
+					procNetstat.PAWSActive = &value
 				case "PAWSEstab":
-					procNetstat.TcpExt.PAWSEstab = &value
+					procNetstat.PAWSEstab = &value
 				case "DelayedACKs":
-					procNetstat.TcpExt.DelayedACKs = &value
+					procNetstat.DelayedACKs = &value
 				case "DelayedACKLocked":
-					procNetstat.TcpExt.DelayedACKLocked = &value
+					procNetstat.DelayedACKLocked = &value
 				case "DelayedACKLost":
-					procNetstat.TcpExt.DelayedACKLost = &value
+					procNetstat.DelayedACKLost = &value
 				case "ListenOverflows":
-					procNetstat.TcpExt.ListenOverflows = &value
+					procNetstat.ListenOverflows = &value
 				case "ListenDrops":
-					procNetstat.TcpExt.ListenDrops = &value
+					procNetstat.ListenDrops = &value
 				case "TCPHPHits":
-					procNetstat.TcpExt.TCPHPHits = &value
+					procNetstat.TCPHPHits = &value
 				case "TCPPureAcks":
-					procNetstat.TcpExt.TCPPureAcks = &value
+					procNetstat.TCPPureAcks = &value
 				case "TCPHPAcks":
-					procNetstat.TcpExt.TCPHPAcks = &value
+					procNetstat.TCPHPAcks = &value
 				case "TCPRenoRecovery":
-					procNetstat.TcpExt.TCPRenoRecovery = &value
+					procNetstat.TCPRenoRecovery = &value
 				case "TCPSackRecovery":
-					procNetstat.TcpExt.TCPSackRecovery = &value
+					procNetstat.TCPSackRecovery = &value
 				case "TCPSACKReneging":
-					procNetstat.TcpExt.TCPSACKReneging = &value
+					procNetstat.TCPSACKReneging = &value
 				case "TCPSACKReorder":
-					procNetstat.TcpExt.TCPSACKReorder = &value
+					procNetstat.TCPSACKReorder = &value
 				case "TCPRenoReorder":
-					procNetstat.TcpExt.TCPRenoReorder = &value
+					procNetstat.TCPRenoReorder = &value
 				case "TCPTSReorder":
-					procNetstat.TcpExt.TCPTSReorder = &value
+					procNetstat.TCPTSReorder = &value
 				case "TCPFullUndo":
-					procNetstat.TcpExt.TCPFullUndo = &value
+					procNetstat.TCPFullUndo = &value
 				case "TCPPartialUndo":
-					procNetstat.TcpExt.TCPPartialUndo = &value
+					procNetstat.TCPPartialUndo = &value
 				case "TCPDSACKUndo":
-					procNetstat.TcpExt.TCPDSACKUndo = &value
+					procNetstat.TCPDSACKUndo = &value
 				case "TCPLossUndo":
-					procNetstat.TcpExt.TCPLossUndo = &value
+					procNetstat.TCPLossUndo = &value
 				case "TCPLostRetransmit":
-					procNetstat.TcpExt.TCPLostRetransmit = &value
+					procNetstat.TCPLostRetransmit = &value
 				case "TCPRenoFailures":
-					procNetstat.TcpExt.TCPRenoFailures = &value
+					procNetstat.TCPRenoFailures = &value
 				case "TCPSackFailures":
-					procNetstat.TcpExt.TCPSackFailures = &value
+					procNetstat.TCPSackFailures = &value
 				case "TCPLossFailures":
-					procNetstat.TcpExt.TCPLossFailures = &value
+					procNetstat.TCPLossFailures = &value
 				case "TCPFastRetrans":
-					procNetstat.TcpExt.TCPFastRetrans = &value
+					procNetstat.TCPFastRetrans = &value
 				case "TCPSlowStartRetrans":
-					procNetstat.TcpExt.TCPSlowStartRetrans = &value
+					procNetstat.TCPSlowStartRetrans = &value
 				case "TCPTimeouts":
-					procNetstat.TcpExt.TCPTimeouts = &value
+					procNetstat.TCPTimeouts = &value
 				case "TCPLossProbes":
-					procNetstat.TcpExt.TCPLossProbes = &value
+					procNetstat.TCPLossProbes = &value
 				case "TCPLossProbeRecovery":
-					procNetstat.TcpExt.TCPLossProbeRecovery = &value
+					procNetstat.TCPLossProbeRecovery = &value
 				case "TCPRenoRecoveryFail":
-					procNetstat.TcpExt.TCPRenoRecoveryFail = &value
+					procNetstat.TCPRenoRecoveryFail = &value
 				case "TCPSackRecoveryFail":
-					procNetstat.TcpExt.TCPSackRecoveryFail = &value
+					procNetstat.TCPSackRecoveryFail = &value
 				case "TCPRcvCollapsed":
-					procNetstat.TcpExt.TCPRcvCollapsed = &value
+					procNetstat.TCPRcvCollapsed = &value
 				case "TCPDSACKOldSent":
-					procNetstat.TcpExt.TCPDSACKOldSent = &value
+					procNetstat.TCPDSACKOldSent = &value
 				case "TCPDSACKOfoSent":
-					procNetstat.TcpExt.TCPDSACKOfoSent = &value
+					procNetstat.TCPDSACKOfoSent = &value
 				case "TCPDSACKRecv":
-					procNetstat.TcpExt.TCPDSACKRecv = &value
+					procNetstat.TCPDSACKRecv = &value
 				case "TCPDSACKOfoRecv":
-					procNetstat.TcpExt.TCPDSACKOfoRecv = &value
+					procNetstat.TCPDSACKOfoRecv = &value
 				case "TCPAbortOnData":
-					procNetstat.TcpExt.TCPAbortOnData = &value
+					procNetstat.TCPAbortOnData = &value
 				case "TCPAbortOnClose":
-					procNetstat.TcpExt.TCPAbortOnClose = &value
+					procNetstat.TCPAbortOnClose = &value
 				case "TCPDeferAcceptDrop":
-					procNetstat.TcpExt.TCPDeferAcceptDrop = &value
+					procNetstat.TCPDeferAcceptDrop = &value
 				case "IPReversePathFilter":
-					procNetstat.TcpExt.IPReversePathFilter = &value
+					procNetstat.IPReversePathFilter = &value
 				case "TCPTimeWaitOverflow":
-					procNetstat.TcpExt.TCPTimeWaitOverflow = &value
+					procNetstat.TCPTimeWaitOverflow = &value
 				case "TCPReqQFullDoCookies":
-					procNetstat.TcpExt.TCPReqQFullDoCookies = &value
+					procNetstat.TCPReqQFullDoCookies = &value
 				case "TCPReqQFullDrop":
-					procNetstat.TcpExt.TCPReqQFullDrop = &value
+					procNetstat.TCPReqQFullDrop = &value
 				case "TCPRetransFail":
-					procNetstat.TcpExt.TCPRetransFail = &value
+					procNetstat.TCPRetransFail = &value
 				case "TCPRcvCoalesce":
-					procNetstat.TcpExt.TCPRcvCoalesce = &value
+					procNetstat.TCPRcvCoalesce = &value
 				case "TCPRcvQDrop":
-					procNetstat.TcpExt.TCPRcvQDrop = &value
+					procNetstat.TCPRcvQDrop = &value
 				case "TCPOFOQueue":
-					procNetstat.TcpExt.TCPOFOQueue = &value
+					procNetstat.TCPOFOQueue = &value
 				case "TCPOFODrop":
-					procNetstat.TcpExt.TCPOFODrop = &value
+					procNetstat.TCPOFODrop = &value
 				case "TCPOFOMerge":
-					procNetstat.TcpExt.TCPOFOMerge = &value
+					procNetstat.TCPOFOMerge = &value
 				case "TCPChallengeACK":
-					procNetstat.TcpExt.TCPChallengeACK = &value
+					procNetstat.TCPChallengeACK = &value
 				case "TCPSYNChallenge":
-					procNetstat.TcpExt.TCPSYNChallenge = &value
+					procNetstat.TCPSYNChallenge = &value
 				case "TCPFastOpenActive":
-					procNetstat.TcpExt.TCPFastOpenActive = &value
+					procNetstat.TCPFastOpenActive = &value
 				case "TCPFastOpenActiveFail":
-					procNetstat.TcpExt.TCPFastOpenActiveFail = &value
+					procNetstat.TCPFastOpenActiveFail = &value
 				case "TCPFastOpenPassive":
-					procNetstat.TcpExt.TCPFastOpenPassive = &value
+					procNetstat.TCPFastOpenPassive = &value
 				case "TCPFastOpenPassiveFail":
-					procNetstat.TcpExt.TCPFastOpenPassiveFail = &value
+					procNetstat.TCPFastOpenPassiveFail = &value
 				case "TCPFastOpenListenOverflow":
-					procNetstat.TcpExt.TCPFastOpenListenOverflow = &value
+					procNetstat.TCPFastOpenListenOverflow = &value
 				case "TCPFastOpenCookieReqd":
-					procNetstat.TcpExt.TCPFastOpenCookieReqd = &value
+					procNetstat.TCPFastOpenCookieReqd = &value
 				case "TCPFastOpenBlackhole":
-					procNetstat.TcpExt.TCPFastOpenBlackhole = &value
+					procNetstat.TCPFastOpenBlackhole = &value
 				case "TCPSpuriousRtxHostQueues":
-					procNetstat.TcpExt.TCPSpuriousRtxHostQueues = &value
+					procNetstat.TCPSpuriousRtxHostQueues = &value
 				case "BusyPollRxPackets":
-					procNetstat.TcpExt.BusyPollRxPackets = &value
+					procNetstat.BusyPollRxPackets = &value
 				case "TCPAutoCorking":
-					procNetstat.TcpExt.TCPAutoCorking = &value
+					procNetstat.TCPAutoCorking = &value
 				case "TCPFromZeroWindowAdv":
-					procNetstat.TcpExt.TCPFromZeroWindowAdv = &value
+					procNetstat.TCPFromZeroWindowAdv = &value
 				case "TCPToZeroWindowAdv":
-					procNetstat.TcpExt.TCPToZeroWindowAdv = &value
+					procNetstat.TCPToZeroWindowAdv = &value
 				case "TCPWantZeroWindowAdv":
-					procNetstat.TcpExt.TCPWantZeroWindowAdv = &value
+					procNetstat.TCPWantZeroWindowAdv = &value
 				case "TCPSynRetrans":
-					procNetstat.TcpExt.TCPSynRetrans = &value
+					procNetstat.TCPSynRetrans = &value
 				case "TCPOrigDataSent":
-					procNetstat.TcpExt.TCPOrigDataSent = &value
+					procNetstat.TCPOrigDataSent = &value
 				case "TCPHystartTrainDetect":
-					procNetstat.TcpExt.TCPHystartTrainDetect = &value
+					procNetstat.TCPHystartTrainDetect = &value
 				case "TCPHystartTrainCwnd":
-					procNetstat.TcpExt.TCPHystartTrainCwnd = &value
+					procNetstat.TCPHystartTrainCwnd = &value
 				case "TCPHystartDelayDetect":
-					procNetstat.TcpExt.TCPHystartDelayDetect = &value
+					procNetstat.TCPHystartDelayDetect = &value
 				case "TCPHystartDelayCwnd":
-					procNetstat.TcpExt.TCPHystartDelayCwnd = &value
+					procNetstat.TCPHystartDelayCwnd = &value
 				case "TCPACKSkippedSynRecv":
-					procNetstat.TcpExt.TCPACKSkippedSynRecv = &value
+					procNetstat.TCPACKSkippedSynRecv = &value
 				case "TCPACKSkippedPAWS":
-					procNetstat.TcpExt.TCPACKSkippedPAWS = &value
+					procNetstat.TCPACKSkippedPAWS = &value
 				case "TCPACKSkippedSeq":
-					procNetstat.TcpExt.TCPACKSkippedSeq = &value
+					procNetstat.TCPACKSkippedSeq = &value
 				case "TCPACKSkippedFinWait2":
-					procNetstat.TcpExt.TCPACKSkippedFinWait2 = &value
+					procNetstat.TCPACKSkippedFinWait2 = &value
 				case "TCPACKSkippedTimeWait":
-					procNetstat.TcpExt.TCPACKSkippedTimeWait = &value
+					procNetstat.TCPACKSkippedTimeWait = &value
 				case "TCPACKSkippedChallenge":
-					procNetstat.TcpExt.TCPACKSkippedChallenge = &value
+					procNetstat.TCPACKSkippedChallenge = &value
 				case "TCPWinProbe":
-					procNetstat.TcpExt.TCPWinProbe = &value
+					procNetstat.TCPWinProbe = &value
 				case "TCPKeepAlive":
-					procNetstat.TcpExt.TCPKeepAlive = &value
+					procNetstat.TCPKeepAlive = &value
 				case "TCPMTUPFail":
-					procNetstat.TcpExt.TCPMTUPFail = &value
+					procNetstat.TCPMTUPFail = &value
 				case "TCPMTUPSuccess":
-					procNetstat.TcpExt.TCPMTUPSuccess = &value
+					procNetstat.TCPMTUPSuccess = &value
 				case "TCPWqueueTooBig":
-					procNetstat.TcpExt.TCPWqueueTooBig = &value
+					procNetstat.TCPWqueueTooBig = &value
 				}
 			case "IpExt":
 				switch key {
 				case "InNoRoutes":
-					procNetstat.IpExt.InNoRoutes = &value
+					procNetstat.InNoRoutes = &value
 				case "InTruncatedPkts":
-					procNetstat.IpExt.InTruncatedPkts = &value
+					procNetstat.InTruncatedPkts = &value
 				case "InMcastPkts":
-					procNetstat.IpExt.InMcastPkts = &value
+					procNetstat.InMcastPkts = &value
 				case "OutMcastPkts":
-					procNetstat.IpExt.OutMcastPkts = &value
+					procNetstat.OutMcastPkts = &value
 				case "InBcastPkts":
-					procNetstat.IpExt.InBcastPkts = &value
+					procNetstat.InBcastPkts = &value
 				case "OutBcastPkts":
-					procNetstat.IpExt.OutBcastPkts = &value
+					procNetstat.OutBcastPkts = &value
 				case "InOctets":
-					procNetstat.IpExt.InOctets = &value
+					procNetstat.InOctets = &value
 				case "OutOctets":
-					procNetstat.IpExt.OutOctets = &value
+					procNetstat.OutOctets = &value
 				case "InMcastOctets":
-					procNetstat.IpExt.InMcastOctets = &value
+					procNetstat.InMcastOctets = &value
 				case "OutMcastOctets":
-					procNetstat.IpExt.OutMcastOctets = &value
+					procNetstat.OutMcastOctets = &value
 				case "InBcastOctets":
-					procNetstat.IpExt.InBcastOctets = &value
+					procNetstat.InBcastOctets = &value
 				case "OutBcastOctets":
-					procNetstat.IpExt.OutBcastOctets = &value
+					procNetstat.OutBcastOctets = &value
 				case "InCsumErrors":
-					procNetstat.IpExt.InCsumErrors = &value
+					procNetstat.InCsumErrors = &value
 				case "InNoECTPkts":
-					procNetstat.IpExt.InNoECTPkts = &value
+					procNetstat.InNoECTPkts = &value
 				case "InECT1Pkts":
-					procNetstat.IpExt.InECT1Pkts = &value
+					procNetstat.InECT1Pkts = &value
 				case "InECT0Pkts":
-					procNetstat.IpExt.InECT0Pkts = &value
+					procNetstat.InECT0Pkts = &value
 				case "InCEPkts":
-					procNetstat.IpExt.InCEPkts = &value
+					procNetstat.InCEPkts = &value
 				case "ReasmOverlaps":
-					procNetstat.IpExt.ReasmOverlaps = &value
+					procNetstat.ReasmOverlaps = &value
 				}
 			}
 		}
--- a/vendor/github.com/prometheus/procfs/proc_smaps.go
+++ b/vendor/github.com/prometheus/procfs/proc_smaps.go
@@ -19,7 +19,6 @@ package procfs
 import (
 	"bufio"
 	"errors"
-	"fmt"
 	"os"
 	"regexp"
 	"strconv"
@@ -29,7 +28,7 @@ import (
 )

 var (
-	// match the header line before each mapped zone in `/proc/pid/smaps`.
+	// Match the header line before each mapped zone in `/proc/pid/smaps`.
 	procSMapsHeaderLine = regexp.MustCompile(`^[a-f0-9].*$`)
 )

@@ -117,7 +116,6 @@ func (p Proc) procSMapsRollupManual() (ProcSMapsRollup, error) {
 func (s *ProcSMapsRollup) parseLine(line string) error {
 	kv := strings.SplitN(line, ":", 2)
 	if len(kv) != 2 {
-		fmt.Println(line)
 		return errors.New("invalid net/dev line, missing colon")
 	}

--- a/vendor/github.com/prometheus/procfs/proc_snmp.go
+++ b/vendor/github.com/prometheus/procfs/proc_snmp.go
@@ -173,138 +173,138 @@ func parseSnmp(r io.Reader, fileName string) (ProcSnmp, error) {
 			case "Ip":
 				switch key {
 				case "Forwarding":
-					procSnmp.Ip.Forwarding = &value
+					procSnmp.Forwarding = &value
 				case "DefaultTTL":
-					procSnmp.Ip.DefaultTTL = &value
+					procSnmp.DefaultTTL = &value
 				case "InReceives":
-					procSnmp.Ip.InReceives = &value
+					procSnmp.InReceives = &value
 				case "InHdrErrors":
-					procSnmp.Ip.InHdrErrors = &value
+					procSnmp.InHdrErrors = &value
 				case "InAddrErrors":
-					procSnmp.Ip.InAddrErrors = &value
+					procSnmp.InAddrErrors = &value
 				case "ForwDatagrams":
-					procSnmp.Ip.ForwDatagrams = &value
+					procSnmp.ForwDatagrams = &value
 				case "InUnknownProtos":
-					procSnmp.Ip.InUnknownProtos = &value
+					procSnmp.InUnknownProtos = &value
 				case "InDiscards":
-					procSnmp.Ip.InDiscards = &value
+					procSnmp.InDiscards = &value
 				case "InDelivers":
-					procSnmp.Ip.InDelivers = &value
+					procSnmp.InDelivers = &value
 				case "OutRequests":
-					procSnmp.Ip.OutRequests = &value
+					procSnmp.OutRequests = &value
 				case "OutDiscards":
-					procSnmp.Ip.OutDiscards = &value
+					procSnmp.OutDiscards = &value
 				case "OutNoRoutes":
-					procSnmp.Ip.OutNoRoutes = &value
+					procSnmp.OutNoRoutes = &value
 				case "ReasmTimeout":
-					procSnmp.Ip.ReasmTimeout = &value
+					procSnmp.ReasmTimeout = &value
 				case "ReasmReqds":
-					procSnmp.Ip.ReasmReqds = &value
+					procSnmp.ReasmReqds = &value
 				case "ReasmOKs":
-					procSnmp.Ip.ReasmOKs = &value
+					procSnmp.ReasmOKs = &value
 				case "ReasmFails":
-					procSnmp.Ip.ReasmFails = &value
+					procSnmp.ReasmFails = &value
 				case "FragOKs":
-					procSnmp.Ip.FragOKs = &value
+					procSnmp.FragOKs = &value
 				case "FragFails":
-					procSnmp.Ip.FragFails = &value
+					procSnmp.FragFails = &value
 				case "FragCreates":
-					procSnmp.Ip.FragCreates = &value
+					procSnmp.FragCreates = &value
 				}
 			case "Icmp":
 				switch key {
 				case "InMsgs":
-					procSnmp.Icmp.InMsgs = &value
+					procSnmp.InMsgs = &value
 				case "InErrors":
 					procSnmp.Icmp.InErrors = &value
 				case "InCsumErrors":
 					procSnmp.Icmp.InCsumErrors = &value
 				case "InDestUnreachs":
-					procSnmp.Icmp.InDestUnreachs = &value
+					procSnmp.InDestUnreachs = &value
 				case "InTimeExcds":
-					procSnmp.Icmp.InTimeExcds = &value
+					procSnmp.InTimeExcds = &value
 				case "InParmProbs":
-					procSnmp.Icmp.InParmProbs = &value
+					procSnmp.InParmProbs = &value
 				case "InSrcQuenchs":
-					procSnmp.Icmp.InSrcQuenchs = &value
+					procSnmp.InSrcQuenchs = &value
 				case "InRedirects":
-					procSnmp.Icmp.InRedirects = &value
+					procSnmp.InRedirects = &value
 				case "InEchos":
-					procSnmp.Icmp.InEchos = &value
+					procSnmp.InEchos = &value
 				case "InEchoReps":
-					procSnmp.Icmp.InEchoReps = &value
+					procSnmp.InEchoReps = &value
 				case "InTimestamps":
-					procSnmp.Icmp.InTimestamps = &value
+					procSnmp.InTimestamps = &value
 				case "InTimestampReps":
-					procSnmp.Icmp.InTimestampReps = &value
+					procSnmp.InTimestampReps = &value
 				case "InAddrMasks":
-					procSnmp.Icmp.InAddrMasks = &value
+					procSnmp.InAddrMasks = &value
 				case "InAddrMaskReps":
-					procSnmp.Icmp.InAddrMaskReps = &value
+					procSnmp.InAddrMaskReps = &value
 				case "OutMsgs":
-					procSnmp.Icmp.OutMsgs = &value
+					procSnmp.OutMsgs = &value
 				case "OutErrors":
-					procSnmp.Icmp.OutErrors = &value
+					procSnmp.OutErrors = &value
 				case "OutDestUnreachs":
-					procSnmp.Icmp.OutDestUnreachs = &value
+					procSnmp.OutDestUnreachs = &value
 				case "OutTimeExcds":
-					procSnmp.Icmp.OutTimeExcds = &value
+					procSnmp.OutTimeExcds = &value
 				case "OutParmProbs":
-					procSnmp.Icmp.OutParmProbs = &value
+					procSnmp.OutParmProbs = &value
 				case "OutSrcQuenchs":
-					procSnmp.Icmp.OutSrcQuenchs = &value
+					procSnmp.OutSrcQuenchs = &value
 				case "OutRedirects":
-					procSnmp.Icmp.OutRedirects = &value
+					procSnmp.OutRedirects = &value
 				case "OutEchos":
-					procSnmp.Icmp.OutEchos = &value
+					procSnmp.OutEchos = &value
 				case "OutEchoReps":
-					procSnmp.Icmp.OutEchoReps = &value
+					procSnmp.OutEchoReps = &value
 				case "OutTimestamps":
-					procSnmp.Icmp.OutTimestamps = &value
+					procSnmp.OutTimestamps = &value
 				case "OutTimestampReps":
-					procSnmp.Icmp.OutTimestampReps = &value
+					procSnmp.OutTimestampReps = &value
 				case "OutAddrMasks":
-					procSnmp.Icmp.OutAddrMasks = &value
+					procSnmp.OutAddrMasks = &value
 				case "OutAddrMaskReps":
-					procSnmp.Icmp.OutAddrMaskReps = &value
+					procSnmp.OutAddrMaskReps = &value
 				}
 			case "IcmpMsg":
 				switch key {
 				case "InType3":
-					procSnmp.IcmpMsg.InType3 = &value
+					procSnmp.InType3 = &value
 				case "OutType3":
-					procSnmp.IcmpMsg.OutType3 = &value
+					procSnmp.OutType3 = &value
 				}
 			case "Tcp":
 				switch key {
 				case "RtoAlgorithm":
-					procSnmp.Tcp.RtoAlgorithm = &value
+					procSnmp.RtoAlgorithm = &value
 				case "RtoMin":
-					procSnmp.Tcp.RtoMin = &value
+					procSnmp.RtoMin = &value
 				case "RtoMax":
-					procSnmp.Tcp.RtoMax = &value
+					procSnmp.RtoMax = &value
 				case "MaxConn":
-					procSnmp.Tcp.MaxConn = &value
+					procSnmp.MaxConn = &value
 				case "ActiveOpens":
-					procSnmp.Tcp.ActiveOpens = &value
+					procSnmp.ActiveOpens = &value
 				case "PassiveOpens":
-					procSnmp.Tcp.PassiveOpens = &value
+					procSnmp.PassiveOpens = &value
 				case "AttemptFails":
-					procSnmp.Tcp.AttemptFails = &value
+					procSnmp.AttemptFails = &value
 				case "EstabResets":
-					procSnmp.Tcp.EstabResets = &value
+					procSnmp.EstabResets = &value
 				case "CurrEstab":
-					procSnmp.Tcp.CurrEstab = &value
+					procSnmp.CurrEstab = &value
 				case "InSegs":
-					procSnmp.Tcp.InSegs = &value
+					procSnmp.InSegs = &value
 				case "OutSegs":
-					procSnmp.Tcp.OutSegs = &value
+					procSnmp.OutSegs = &value
 				case "RetransSegs":
-					procSnmp.Tcp.RetransSegs = &value
+					procSnmp.RetransSegs = &value
 				case "InErrs":
-					procSnmp.Tcp.InErrs = &value
+					procSnmp.InErrs = &value
 				case "OutRsts":
-					procSnmp.Tcp.OutRsts = &value
+					procSnmp.OutRsts = &value
 				case "InCsumErrors":
 					procSnmp.Tcp.InCsumErrors = &value
 				}
--- a/vendor/github.com/prometheus/procfs/proc_snmp6.go
+++ b/vendor/github.com/prometheus/procfs/proc_snmp6.go
@@ -182,161 +182,161 @@ func parseSNMP6Stats(r io.Reader) (ProcSnmp6, error) {
 			case "Ip6":
 				switch key {
 				case "InReceives":
-					procSnmp6.Ip6.InReceives = &value
+					procSnmp6.InReceives = &value
 				case "InHdrErrors":
-					procSnmp6.Ip6.InHdrErrors = &value
+					procSnmp6.InHdrErrors = &value
 				case "InTooBigErrors":
-					procSnmp6.Ip6.InTooBigErrors = &value
+					procSnmp6.InTooBigErrors = &value
 				case "InNoRoutes":
-					procSnmp6.Ip6.InNoRoutes = &value
+					procSnmp6.InNoRoutes = &value
 				case "InAddrErrors":
-					procSnmp6.Ip6.InAddrErrors = &value
+					procSnmp6.InAddrErrors = &value
 				case "InUnknownProtos":
-					procSnmp6.Ip6.InUnknownProtos = &value
+					procSnmp6.InUnknownProtos = &value
 				case "InTruncatedPkts":
-					procSnmp6.Ip6.InTruncatedPkts = &value
+					procSnmp6.InTruncatedPkts = &value
 				case "InDiscards":
-					procSnmp6.Ip6.InDiscards = &value
+					procSnmp6.InDiscards = &value
 				case "InDelivers":
-					procSnmp6.Ip6.InDelivers = &value
+					procSnmp6.InDelivers = &value
 				case "OutForwDatagrams":
-					procSnmp6.Ip6.OutForwDatagrams = &value
+					procSnmp6.OutForwDatagrams = &value
 				case "OutRequests":
-					procSnmp6.Ip6.OutRequests = &value
+					procSnmp6.OutRequests = &value
 				case "OutDiscards":
-					procSnmp6.Ip6.OutDiscards = &value
+					procSnmp6.OutDiscards = &value
 				case "OutNoRoutes":
-					procSnmp6.Ip6.OutNoRoutes = &value
+					procSnmp6.OutNoRoutes = &value
 				case "ReasmTimeout":
-					procSnmp6.Ip6.ReasmTimeout = &value
+					procSnmp6.ReasmTimeout = &value
 				case "ReasmReqds":
-					procSnmp6.Ip6.ReasmReqds = &value
+					procSnmp6.ReasmReqds = &value
 				case "ReasmOKs":
-					procSnmp6.Ip6.ReasmOKs = &value
+					procSnmp6.ReasmOKs = &value
 				case "ReasmFails":
-					procSnmp6.Ip6.ReasmFails = &value
+					procSnmp6.ReasmFails = &value
 				case "FragOKs":
-					procSnmp6.Ip6.FragOKs = &value
+					procSnmp6.FragOKs = &value
 				case "FragFails":
-					procSnmp6.Ip6.FragFails = &value
+					procSnmp6.FragFails = &value
 				case "FragCreates":
-					procSnmp6.Ip6.FragCreates = &value
+					procSnmp6.FragCreates = &value
 				case "InMcastPkts":
-					procSnmp6.Ip6.InMcastPkts = &value
+					procSnmp6.InMcastPkts = &value
 				case "OutMcastPkts":
-					procSnmp6.Ip6.OutMcastPkts = &value
+					procSnmp6.OutMcastPkts = &value
 				case "InOctets":
-					procSnmp6.Ip6.InOctets = &value
+					procSnmp6.InOctets = &value
 				case "OutOctets":
-					procSnmp6.Ip6.OutOctets = &value
+					procSnmp6.OutOctets = &value
 				case "InMcastOctets":
-					procSnmp6.Ip6.InMcastOctets = &value
+					procSnmp6.InMcastOctets = &value
 				case "OutMcastOctets":
-					procSnmp6.Ip6.OutMcastOctets = &value
+					procSnmp6.OutMcastOctets = &value
 				case "InBcastOctets":
-					procSnmp6.Ip6.InBcastOctets = &value
+					procSnmp6.InBcastOctets = &value
 				case "OutBcastOctets":
-					procSnmp6.Ip6.OutBcastOctets = &value
+					procSnmp6.OutBcastOctets = &value
 				case "InNoECTPkts":
-					procSnmp6.Ip6.InNoECTPkts = &value
+					procSnmp6.InNoECTPkts = &value
 				case "InECT1Pkts":
-					procSnmp6.Ip6.InECT1Pkts = &value
+					procSnmp6.InECT1Pkts = &value
 				case "InECT0Pkts":
-					procSnmp6.Ip6.InECT0Pkts = &value
+					procSnmp6.InECT0Pkts = &value
 				case "InCEPkts":
-					procSnmp6.Ip6.InCEPkts = &value
+					procSnmp6.InCEPkts = &value

 				}
 			case "Icmp6":
 				switch key {
 				case "InMsgs":
-					procSnmp6.Icmp6.InMsgs = &value
+					procSnmp6.InMsgs = &value
 				case "InErrors":
 					procSnmp6.Icmp6.InErrors = &value
 				case "OutMsgs":
-					procSnmp6.Icmp6.OutMsgs = &value
+					procSnmp6.OutMsgs = &value
 				case "OutErrors":
-					procSnmp6.Icmp6.OutErrors = &value
+					procSnmp6.OutErrors = &value
 				case "InCsumErrors":
 					procSnmp6.Icmp6.InCsumErrors = &value
 				case "InDestUnreachs":
-					procSnmp6.Icmp6.InDestUnreachs = &value
+					procSnmp6.InDestUnreachs = &value
 				case "InPktTooBigs":
-					procSnmp6.Icmp6.InPktTooBigs = &value
+					procSnmp6.InPktTooBigs = &value
 				case "InTimeExcds":
-					procSnmp6.Icmp6.InTimeExcds = &value
+					procSnmp6.InTimeExcds = &value
 				case "InParmProblems":
-					procSnmp6.Icmp6.InParmProblems = &value
+					procSnmp6.InParmProblems = &value
 				case "InEchos":
-					procSnmp6.Icmp6.InEchos = &value
+					procSnmp6.InEchos = &value
 				case "InEchoReplies":
-					procSnmp6.Icmp6.InEchoReplies = &value
+					procSnmp6.InEchoReplies = &value
 				case "InGroupMembQueries":
-					procSnmp6.Icmp6.InGroupMembQueries = &value
+					procSnmp6.InGroupMembQueries = &value
 				case "InGroupMembResponses":
-					procSnmp6.Icmp6.InGroupMembResponses = &value
+					procSnmp6.InGroupMembResponses = &value
 				case "InGroupMembReductions":
-					procSnmp6.Icmp6.InGroupMembReductions = &value
+					procSnmp6.InGroupMembReductions = &value
 				case "InRouterSolicits":
-					procSnmp6.Icmp6.InRouterSolicits = &value
+					procSnmp6.InRouterSolicits = &value
 				case "InRouterAdvertisements":
-					procSnmp6.Icmp6.InRouterAdvertisements = &value
+					procSnmp6.InRouterAdvertisements = &value
 				case "InNeighborSolicits":
-					procSnmp6.Icmp6.InNeighborSolicits = &value
+					procSnmp6.InNeighborSolicits = &value
 				case "InNeighborAdvertisements":
-					procSnmp6.Icmp6.InNeighborAdvertisements = &value
+					procSnmp6.InNeighborAdvertisements = &value
 				case "InRedirects":
-					procSnmp6.Icmp6.InRedirects = &value
+					procSnmp6.InRedirects = &value
 				case "InMLDv2Reports":
-					procSnmp6.Icmp6.InMLDv2Reports = &value
+					procSnmp6.InMLDv2Reports = &value
 				case "OutDestUnreachs":
-					procSnmp6.Icmp6.OutDestUnreachs = &value
+					procSnmp6.OutDestUnreachs = &value
 				case "OutPktTooBigs":
-					procSnmp6.Icmp6.OutPktTooBigs = &value
+					procSnmp6.OutPktTooBigs = &value
 				case "OutTimeExcds":
-					procSnmp6.Icmp6.OutTimeExcds = &value
+					procSnmp6.OutTimeExcds = &value
 				case "OutParmProblems":
-					procSnmp6.Icmp6.OutParmProblems = &value
+					procSnmp6.OutParmProblems = &value
 				case "OutEchos":
-					procSnmp6.Icmp6.OutEchos = &value
+					procSnmp6.OutEchos = &value
 				case "OutEchoReplies":
-					procSnmp6.Icmp6.OutEchoReplies = &value
+					procSnmp6.OutEchoReplies = &value
 				case "OutGroupMembQueries":
-					procSnmp6.Icmp6.OutGroupMembQueries = &value
+					procSnmp6.OutGroupMembQueries = &value
 				case "OutGroupMembResponses":
-					procSnmp6.Icmp6.OutGroupMembResponses = &value
+					procSnmp6.OutGroupMembResponses = &value
 				case "OutGroupMembReductions":
-					procSnmp6.Icmp6.OutGroupMembReductions = &value
+					procSnmp6.OutGroupMembReductions = &value
 				case "OutRouterSolicits":
-					procSnmp6.Icmp6.OutRouterSolicits = &value
+					procSnmp6.OutRouterSolicits = &value
 				case "OutRouterAdvertisements":
-					procSnmp6.Icmp6.OutRouterAdvertisements = &value
+					procSnmp6.OutRouterAdvertisements = &value
 				case "OutNeighborSolicits":
-					procSnmp6.Icmp6.OutNeighborSolicits = &value
+					procSnmp6.OutNeighborSolicits = &value
 				case "OutNeighborAdvertisements":
-					procSnmp6.Icmp6.OutNeighborAdvertisements = &value
+					procSnmp6.OutNeighborAdvertisements = &value
 				case "OutRedirects":
-					procSnmp6.Icmp6.OutRedirects = &value
+					procSnmp6.OutRedirects = &value
 				case "OutMLDv2Reports":
-					procSnmp6.Icmp6.OutMLDv2Reports = &value
+					procSnmp6.OutMLDv2Reports = &value
 				case "InType1":
-					procSnmp6.Icmp6.InType1 = &value
+					procSnmp6.InType1 = &value
 				case "InType134":
-					procSnmp6.Icmp6.InType134 = &value
+					procSnmp6.InType134 = &value
 				case "InType135":
-					procSnmp6.Icmp6.InType135 = &value
+					procSnmp6.InType135 = &value
 				case "InType136":
-					procSnmp6.Icmp6.InType136 = &value
+					procSnmp6.InType136 = &value
 				case "InType143":
-					procSnmp6.Icmp6.InType143 = &value
+					procSnmp6.InType143 = &value
 				case "OutType133":
-					procSnmp6.Icmp6.OutType133 = &value
+					procSnmp6.OutType133 = &value
 				case "OutType135":
-					procSnmp6.Icmp6.OutType135 = &value
+					procSnmp6.OutType135 = &value
 				case "OutType136":
-					procSnmp6.Icmp6.OutType136 = &value
+					procSnmp6.OutType136 = &value
 				case "OutType143":
-					procSnmp6.Icmp6.OutType143 = &value
+					procSnmp6.OutType143 = &value
 				}
 			case "Udp6":
 				switch key {
@@ -355,7 +355,7 @@ func parseSNMP6Stats(r io.Reader) (ProcSnmp6, error) {
 				case "InCsumErrors":
 					procSnmp6.Udp6.InCsumErrors = &value
 				case "IgnoredMulti":
-					procSnmp6.Udp6.IgnoredMulti = &value
+					procSnmp6.IgnoredMulti = &value
 				}
 			case "UdpLite6":
 				switch key {
--- a/vendor/github.com/prometheus/procfs/proc_status.go
+++ b/vendor/github.com/prometheus/procfs/proc_status.go
@@ -146,7 +146,11 @@ func (s *ProcStatus) fillStatus(k string, vString string, vUint uint64, vUintByt
 			}
 		}
 	case "NSpid":
-		s.NSpids = calcNSPidsList(vString)
+		nspids, err := calcNSPidsList(vString)
+		if err != nil {
+			return err
+		}
+		s.NSpids = nspids
 	case "VmPeak":
 		s.VmPeak = vUintBytes
 	case "VmSize":
@@ -222,17 +226,17 @@ func calcCpusAllowedList(cpuString string) []uint64 {
 	return g
 }

-func calcNSPidsList(nspidsString string) []uint64 {
-	s := strings.Split(nspidsString, " ")
+func calcNSPidsList(nspidsString string) ([]uint64, error) {
+	s := strings.Split(nspidsString, "\t")
 	var nspids []uint64

 	for _, nspid := range s {
-		nspid, _ := strconv.ParseUint(nspid, 10, 64)
-		if nspid == 0 {
-			continue
+		nspid, err := strconv.ParseUint(nspid, 10, 64)
+		if err != nil {
+			return nil, err
 		}
 		nspids = append(nspids, nspid)
 	}

-	return nspids
+	return nspids, nil
 }
--- a/vendor/github.com/prometheus/procfs/proc_sys.go
+++ b/vendor/github.com/prometheus/procfs/proc_sys.go
@@ -21,7 +21,7 @@ import (
 )

 func sysctlToPath(sysctl string) string {
-	return strings.Replace(sysctl, ".", "/", -1)
+	return strings.ReplaceAll(sysctl, ".", "/")
 }

 func (fs FS) SysctlStrings(sysctl string) ([]string, error) {
--- a/vendor/github.com/prometheus/procfs/softirqs.go
+++ b/vendor/github.com/prometheus/procfs/softirqs.go
@@ -68,8 +68,8 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
 		if len(parts) < 2 {
 			continue
 		}
-		switch {
-		case parts[0] == "HI:":
+		switch parts[0] {
+		case "HI:":
 			perCPU := parts[1:]
 			softirqs.Hi = make([]uint64, len(perCPU))
 			for i, count := range perCPU {
@@ -77,7 +77,7 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
 					return Softirqs{}, fmt.Errorf("%w: couldn't parse %q (HI%d): %w", ErrFileParse, count, i, err)
 				}
 			}
-		case parts[0] == "TIMER:":
+		case "TIMER:":
 			perCPU := parts[1:]
 			softirqs.Timer = make([]uint64, len(perCPU))
 			for i, count := range perCPU {
@@ -85,7 +85,7 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
 					return Softirqs{}, fmt.Errorf("%w: couldn't parse %q (TIMER%d): %w", ErrFileParse, count, i, err)
 				}
 			}
-		case parts[0] == "NET_TX:":
+		case "NET_TX:":
 			perCPU := parts[1:]
 			softirqs.NetTx = make([]uint64, len(perCPU))
 			for i, count := range perCPU {
@@ -93,7 +93,7 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
 					return Softirqs{}, fmt.Errorf("%w: couldn't parse %q (NET_TX%d): %w", ErrFileParse, count, i, err)
 				}
 			}
-		case parts[0] == "NET_RX:":
+		case "NET_RX:":
 			perCPU := parts[1:]
 			softirqs.NetRx = make([]uint64, len(perCPU))
 			for i, count := range perCPU {
@@ -101,7 +101,7 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
 					return Softirqs{}, fmt.Errorf("%w: couldn't parse %q (NET_RX%d): %w", ErrFileParse, count, i, err)
 				}
 			}
-		case parts[0] == "BLOCK:":
+		case "BLOCK:":
 			perCPU := parts[1:]
 			softirqs.Block = make([]uint64, len(perCPU))
 			for i, count := range perCPU {
@@ -109,7 +109,7 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
 					return Softirqs{}, fmt.Errorf("%w: couldn't parse %q (BLOCK%d): %w", ErrFileParse, count, i, err)
 				}
 			}
-		case parts[0] == "IRQ_POLL:":
+		case "IRQ_POLL:":
 			perCPU := parts[1:]
 			softirqs.IRQPoll = make([]uint64, len(perCPU))
 			for i, count := range perCPU {
@@ -117,7 +117,7 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
 					return Softirqs{}, fmt.Errorf("%w: couldn't parse %q (IRQ_POLL%d): %w", ErrFileParse, count, i, err)
 				}
 			}
-		case parts[0] == "TASKLET:":
+		case "TASKLET:":
 			perCPU := parts[1:]
 			softirqs.Tasklet = make([]uint64, len(perCPU))
 			for i, count := range perCPU {
@@ -125,7 +125,7 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
 					return Softirqs{}, fmt.Errorf("%w: couldn't parse %q (TASKLET%d): %w", ErrFileParse, count, i, err)
 				}
 			}
-		case parts[0] == "SCHED:":
+		case "SCHED:":
 			perCPU := parts[1:]
 			softirqs.Sched = make([]uint64, len(perCPU))
 			for i, count := range perCPU {
@@ -133,7 +133,7 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
 					return Softirqs{}, fmt.Errorf("%w: couldn't parse %q (SCHED%d): %w", ErrFileParse, count, i, err)
 				}
 			}
-		case parts[0] == "HRTIMER:":
+		case "HRTIMER:":
 			perCPU := parts[1:]
 			softirqs.HRTimer = make([]uint64, len(perCPU))
 			for i, count := range perCPU {
@@ -141,7 +141,7 @@ func parseSoftirqs(r io.Reader) (Softirqs, error) {
 					return Softirqs{}, fmt.Errorf("%w: couldn't parse %q (HRTIMER%d): %w", ErrFileParse, count, i, err)
 				}
 			}
-		case parts[0] == "RCU:":
+		case "RCU:":
 			perCPU := parts[1:]
 			softirqs.RCU = make([]uint64, len(perCPU))
 			for i, count := range perCPU {
--- a/vendor/go.yaml.in/yaml/v2/.travis.yml
+++ b/vendor/go.yaml.in/yaml/v2/.travis.yml
@@ -0,0 +1,17 @@
+language: go
+
+go:
+    - "1.4.x"
+    - "1.5.x"
+    - "1.6.x"
+    - "1.7.x"
+    - "1.8.x"
+    - "1.9.x"
+    - "1.10.x"
+    - "1.11.x"
+    - "1.12.x"
+    - "1.13.x"
+    - "1.14.x"
+    - "tip"
+
+go_import_path: gopkg.in/yaml.v2
--- a/vendor/go.yaml.in/yaml/v2/LICENSE
+++ b/vendor/go.yaml.in/yaml/v2/LICENSE
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "{}"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright {yyyy} {name of copyright owner}
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
--- a/vendor/go.yaml.in/yaml/v2/LICENSE.libyaml
+++ b/vendor/go.yaml.in/yaml/v2/LICENSE.libyaml
@@ -0,0 +1,31 @@
+The following files were ported to Go from C files of libyaml, and thus
+are still covered by their original copyright and license:
+
+    apic.go
+    emitterc.go
+    parserc.go
+    readerc.go
+    scannerc.go
+    writerc.go
+    yamlh.go
+    yamlprivateh.go
+
+Copyright (c) 2006 Kirill Simonov
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
--- a/vendor/go.yaml.in/yaml/v2/NOTICE
+++ b/vendor/go.yaml.in/yaml/v2/NOTICE
@@ -0,0 +1,13 @@
+Copyright 2011-2016 Canonical Ltd.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
--- a/vendor/go.yaml.in/yaml/v2/README.md
+++ b/vendor/go.yaml.in/yaml/v2/README.md
@@ -0,0 +1,131 @@
+# YAML support for the Go language
+
+Introduction
+------------
+
+The yaml package enables Go programs to comfortably encode and decode YAML
+values. It was developed within [Canonical](https://www.canonical.com) as
+part of the [juju](https://juju.ubuntu.com) project, and is based on a
+pure Go port of the well-known [libyaml](http://pyyaml.org/wiki/LibYAML)
+C library to parse and generate YAML data quickly and reliably.
+
+Compatibility
+-------------
+
+The yaml package supports most of YAML 1.1 and 1.2, including support for
+anchors, tags, map merging, etc. Multi-document unmarshalling is not yet
+implemented, and base-60 floats from YAML 1.1 are purposefully not
+supported since they're a poor design and are gone in YAML 1.2.
+
+Installation and usage
+----------------------
+
+The import path for the package is *go.yaml.in/yaml/v2*.
+
+To install it, run:
+
+    go get go.yaml.in/yaml/v2
+
+API documentation
+-----------------
+
+See: <https://pkg.go.dev/go.yaml.in/yaml/v2>
+
+API stability
+-------------
+
+The package API for yaml v2 will remain stable as described in [gopkg.in](https://gopkg.in).
+
+
+License
+-------
+
+The yaml package is licensed under the Apache License 2.0. Please see the LICENSE file for details.
+
+
+Example
+-------
+
+```Go
+package main
+
+import (
+        "fmt"
+        "log"
+
+        "go.yaml.in/yaml/v2"
+)
+
+var data = `
+a: Easy!
+b:
+  c: 2
+  d: [3, 4]
+`
+
+// Note: struct fields must be public in order for unmarshal to
+// correctly populate the data.
+type T struct {
+        A string
+        B struct {
+                RenamedC int   `yaml:"c"`
+                D        []int `yaml:",flow"`
+        }
+}
+
+func main() {
+        t := T{}
+    
+        err := yaml.Unmarshal([]byte(data), &t)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- t:\n%v\n\n", t)
+    
+        d, err := yaml.Marshal(&t)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- t dump:\n%s\n\n", string(d))
+    
+        m := make(map[interface{}]interface{})
+    
+        err = yaml.Unmarshal([]byte(data), &m)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- m:\n%v\n\n", m)
+    
+        d, err = yaml.Marshal(&m)
+        if err != nil {
+                log.Fatalf("error: %v", err)
+        }
+        fmt.Printf("--- m dump:\n%s\n\n", string(d))
+}
+```
+
+This example will generate the following output:
+
+```
+--- t:
+{Easy! {2 [3 4]}}
+
+--- t dump:
+a: Easy!
+b:
+  c: 2
+  d: [3, 4]
+
+
+--- m:
+map[a:Easy! b:map[c:2 d:[3 4]]]
+
+--- m dump:
+a: Easy!
+b:
+  c: 2
+  d:
+  - 3
+  - 4
+```
+
--- a/vendor/go.yaml.in/yaml/v2/apic.go
+++ b/vendor/go.yaml.in/yaml/v2/apic.go
@@ -0,0 +1,744 @@
+package yaml
+
+import (
+	"io"
+)
+
+func yaml_insert_token(parser *yaml_parser_t, pos int, token *yaml_token_t) {
+	//fmt.Println("yaml_insert_token", "pos:", pos, "typ:", token.typ, "head:", parser.tokens_head, "len:", len(parser.tokens))
+
+	// Check if we can move the queue at the beginning of the buffer.
+	if parser.tokens_head > 0 && len(parser.tokens) == cap(parser.tokens) {
+		if parser.tokens_head != len(parser.tokens) {
+			copy(parser.tokens, parser.tokens[parser.tokens_head:])
+		}
+		parser.tokens = parser.tokens[:len(parser.tokens)-parser.tokens_head]
+		parser.tokens_head = 0
+	}
+	parser.tokens = append(parser.tokens, *token)
+	if pos < 0 {
+		return
+	}
+	copy(parser.tokens[parser.tokens_head+pos+1:], parser.tokens[parser.tokens_head+pos:])
+	parser.tokens[parser.tokens_head+pos] = *token
+}
+
+// Create a new parser object.
+func yaml_parser_initialize(parser *yaml_parser_t) bool {
+	*parser = yaml_parser_t{
+		raw_buffer: make([]byte, 0, input_raw_buffer_size),
+		buffer:     make([]byte, 0, input_buffer_size),
+	}
+	return true
+}
+
+// Destroy a parser object.
+func yaml_parser_delete(parser *yaml_parser_t) {
+	*parser = yaml_parser_t{}
+}
+
+// String read handler.
+func yaml_string_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
+	if parser.input_pos == len(parser.input) {
+		return 0, io.EOF
+	}
+	n = copy(buffer, parser.input[parser.input_pos:])
+	parser.input_pos += n
+	return n, nil
+}
+
+// Reader read handler.
+func yaml_reader_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
+	return parser.input_reader.Read(buffer)
+}
+
+// Set a string input.
+func yaml_parser_set_input_string(parser *yaml_parser_t, input []byte) {
+	if parser.read_handler != nil {
+		panic("must set the input source only once")
+	}
+	parser.read_handler = yaml_string_read_handler
+	parser.input = input
+	parser.input_pos = 0
+}
+
+// Set a file input.
+func yaml_parser_set_input_reader(parser *yaml_parser_t, r io.Reader) {
+	if parser.read_handler != nil {
+		panic("must set the input source only once")
+	}
+	parser.read_handler = yaml_reader_read_handler
+	parser.input_reader = r
+}
+
+// Set the source encoding.
+func yaml_parser_set_encoding(parser *yaml_parser_t, encoding yaml_encoding_t) {
+	if parser.encoding != yaml_ANY_ENCODING {
+		panic("must set the encoding only once")
+	}
+	parser.encoding = encoding
+}
+
+var disableLineWrapping = false
+
+// Create a new emitter object.
+func yaml_emitter_initialize(emitter *yaml_emitter_t) {
+	*emitter = yaml_emitter_t{
+		buffer:     make([]byte, output_buffer_size),
+		raw_buffer: make([]byte, 0, output_raw_buffer_size),
+		states:     make([]yaml_emitter_state_t, 0, initial_stack_size),
+		events:     make([]yaml_event_t, 0, initial_queue_size),
+	}
+	if disableLineWrapping {
+		emitter.best_width = -1
+	}
+}
+
+// Destroy an emitter object.
+func yaml_emitter_delete(emitter *yaml_emitter_t) {
+	*emitter = yaml_emitter_t{}
+}
+
+// String write handler.
+func yaml_string_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
+	*emitter.output_buffer = append(*emitter.output_buffer, buffer...)
+	return nil
+}
+
+// yaml_writer_write_handler uses emitter.output_writer to write the
+// emitted text.
+func yaml_writer_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
+	_, err := emitter.output_writer.Write(buffer)
+	return err
+}
+
+// Set a string output.
+func yaml_emitter_set_output_string(emitter *yaml_emitter_t, output_buffer *[]byte) {
+	if emitter.write_handler != nil {
+		panic("must set the output target only once")
+	}
+	emitter.write_handler = yaml_string_write_handler
+	emitter.output_buffer = output_buffer
+}
+
+// Set a file output.
+func yaml_emitter_set_output_writer(emitter *yaml_emitter_t, w io.Writer) {
+	if emitter.write_handler != nil {
+		panic("must set the output target only once")
+	}
+	emitter.write_handler = yaml_writer_write_handler
+	emitter.output_writer = w
+}
+
+// Set the output encoding.
+func yaml_emitter_set_encoding(emitter *yaml_emitter_t, encoding yaml_encoding_t) {
+	if emitter.encoding != yaml_ANY_ENCODING {
+		panic("must set the output encoding only once")
+	}
+	emitter.encoding = encoding
+}
+
+// Set the canonical output style.
+func yaml_emitter_set_canonical(emitter *yaml_emitter_t, canonical bool) {
+	emitter.canonical = canonical
+}
+
+//// Set the indentation increment.
+func yaml_emitter_set_indent(emitter *yaml_emitter_t, indent int) {
+	if indent < 2 || indent > 9 {
+		indent = 2
+	}
+	emitter.best_indent = indent
+}
+
+// Set the preferred line width.
+func yaml_emitter_set_width(emitter *yaml_emitter_t, width int) {
+	if width < 0 {
+		width = -1
+	}
+	emitter.best_width = width
+}
+
+// Set if unescaped non-ASCII characters are allowed.
+func yaml_emitter_set_unicode(emitter *yaml_emitter_t, unicode bool) {
+	emitter.unicode = unicode
+}
+
+// Set the preferred line break character.
+func yaml_emitter_set_break(emitter *yaml_emitter_t, line_break yaml_break_t) {
+	emitter.line_break = line_break
+}
+
+///*
+// * Destroy a token object.
+// */
+//
+//YAML_DECLARE(void)
+//yaml_token_delete(yaml_token_t *token)
+//{
+//    assert(token);  // Non-NULL token object expected.
+//
+//    switch (token.type)
+//    {
+//        case YAML_TAG_DIRECTIVE_TOKEN:
+//            yaml_free(token.data.tag_directive.handle);
+//            yaml_free(token.data.tag_directive.prefix);
+//            break;
+//
+//        case YAML_ALIAS_TOKEN:
+//            yaml_free(token.data.alias.value);
+//            break;
+//
+//        case YAML_ANCHOR_TOKEN:
+//            yaml_free(token.data.anchor.value);
+//            break;
+//
+//        case YAML_TAG_TOKEN:
+//            yaml_free(token.data.tag.handle);
+//            yaml_free(token.data.tag.suffix);
+//            break;
+//
+//        case YAML_SCALAR_TOKEN:
+//            yaml_free(token.data.scalar.value);
+//            break;
+//
+//        default:
+//            break;
+//    }
+//
+//    memset(token, 0, sizeof(yaml_token_t));
+//}
+//
+///*
+// * Check if a string is a valid UTF-8 sequence.
+// *
+// * Check 'reader.c' for more details on UTF-8 encoding.
+// */
+//
+//static int
+//yaml_check_utf8(yaml_char_t *start, size_t length)
+//{
+//    yaml_char_t *end = start+length;
+//    yaml_char_t *pointer = start;
+//
+//    while (pointer < end) {
+//        unsigned char octet;
+//        unsigned int width;
+//        unsigned int value;
+//        size_t k;
+//
+//        octet = pointer[0];
+//        width = (octet & 0x80) == 0x00 ? 1 :
+//                (octet & 0xE0) == 0xC0 ? 2 :
+//                (octet & 0xF0) == 0xE0 ? 3 :
+//                (octet & 0xF8) == 0xF0 ? 4 : 0;
+//        value = (octet & 0x80) == 0x00 ? octet & 0x7F :
+//                (octet & 0xE0) == 0xC0 ? octet & 0x1F :
+//                (octet & 0xF0) == 0xE0 ? octet & 0x0F :
+//                (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;
+//        if (!width) return 0;
+//        if (pointer+width > end) return 0;
+//        for (k = 1; k < width; k ++) {
+//            octet = pointer[k];
+//            if ((octet & 0xC0) != 0x80) return 0;
+//            value = (value << 6) + (octet & 0x3F);
+//        }
+//        if (!((width == 1) ||
+//            (width == 2 && value >= 0x80) ||
+//            (width == 3 && value >= 0x800) ||
+//            (width == 4 && value >= 0x10000))) return 0;
+//
+//        pointer += width;
+//    }
+//
+//    return 1;
+//}
+//
+
+// Create STREAM-START.
+func yaml_stream_start_event_initialize(event *yaml_event_t, encoding yaml_encoding_t) {
+	*event = yaml_event_t{
+		typ:      yaml_STREAM_START_EVENT,
+		encoding: encoding,
+	}
+}
+
+// Create STREAM-END.
+func yaml_stream_end_event_initialize(event *yaml_event_t) {
+	*event = yaml_event_t{
+		typ: yaml_STREAM_END_EVENT,
+	}
+}
+
+// Create DOCUMENT-START.
+func yaml_document_start_event_initialize(
+	event *yaml_event_t,
+	version_directive *yaml_version_directive_t,
+	tag_directives []yaml_tag_directive_t,
+	implicit bool,
+) {
+	*event = yaml_event_t{
+		typ:               yaml_DOCUMENT_START_EVENT,
+		version_directive: version_directive,
+		tag_directives:    tag_directives,
+		implicit:          implicit,
+	}
+}
+
+// Create DOCUMENT-END.
+func yaml_document_end_event_initialize(event *yaml_event_t, implicit bool) {
+	*event = yaml_event_t{
+		typ:      yaml_DOCUMENT_END_EVENT,
+		implicit: implicit,
+	}
+}
+
+///*
+// * Create ALIAS.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_alias_event_initialize(event *yaml_event_t, anchor *yaml_char_t)
+//{
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    anchor_copy *yaml_char_t = NULL
+//
+//    assert(event) // Non-NULL event object is expected.
+//    assert(anchor) // Non-NULL anchor is expected.
+//
+//    if (!yaml_check_utf8(anchor, strlen((char *)anchor))) return 0
+//
+//    anchor_copy = yaml_strdup(anchor)
+//    if (!anchor_copy)
+//        return 0
+//
+//    ALIAS_EVENT_INIT(*event, anchor_copy, mark, mark)
+//
+//    return 1
+//}
+
+// Create SCALAR.
+func yaml_scalar_event_initialize(event *yaml_event_t, anchor, tag, value []byte, plain_implicit, quoted_implicit bool, style yaml_scalar_style_t) bool {
+	*event = yaml_event_t{
+		typ:             yaml_SCALAR_EVENT,
+		anchor:          anchor,
+		tag:             tag,
+		value:           value,
+		implicit:        plain_implicit,
+		quoted_implicit: quoted_implicit,
+		style:           yaml_style_t(style),
+	}
+	return true
+}
+
+// Create SEQUENCE-START.
+func yaml_sequence_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_sequence_style_t) bool {
+	*event = yaml_event_t{
+		typ:      yaml_SEQUENCE_START_EVENT,
+		anchor:   anchor,
+		tag:      tag,
+		implicit: implicit,
+		style:    yaml_style_t(style),
+	}
+	return true
+}
+
+// Create SEQUENCE-END.
+func yaml_sequence_end_event_initialize(event *yaml_event_t) bool {
+	*event = yaml_event_t{
+		typ: yaml_SEQUENCE_END_EVENT,
+	}
+	return true
+}
+
+// Create MAPPING-START.
+func yaml_mapping_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_mapping_style_t) {
+	*event = yaml_event_t{
+		typ:      yaml_MAPPING_START_EVENT,
+		anchor:   anchor,
+		tag:      tag,
+		implicit: implicit,
+		style:    yaml_style_t(style),
+	}
+}
+
+// Create MAPPING-END.
+func yaml_mapping_end_event_initialize(event *yaml_event_t) {
+	*event = yaml_event_t{
+		typ: yaml_MAPPING_END_EVENT,
+	}
+}
+
+// Destroy an event object.
+func yaml_event_delete(event *yaml_event_t) {
+	*event = yaml_event_t{}
+}
+
+///*
+// * Create a document object.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_initialize(document *yaml_document_t,
+//        version_directive *yaml_version_directive_t,
+//        tag_directives_start *yaml_tag_directive_t,
+//        tag_directives_end *yaml_tag_directive_t,
+//        start_implicit int, end_implicit int)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    struct {
+//        start *yaml_node_t
+//        end *yaml_node_t
+//        top *yaml_node_t
+//    } nodes = { NULL, NULL, NULL }
+//    version_directive_copy *yaml_version_directive_t = NULL
+//    struct {
+//        start *yaml_tag_directive_t
+//        end *yaml_tag_directive_t
+//        top *yaml_tag_directive_t
+//    } tag_directives_copy = { NULL, NULL, NULL }
+//    value yaml_tag_directive_t = { NULL, NULL }
+//    mark yaml_mark_t = { 0, 0, 0 }
+//
+//    assert(document) // Non-NULL document object is expected.
+//    assert((tag_directives_start && tag_directives_end) ||
+//            (tag_directives_start == tag_directives_end))
+//                            // Valid tag directives are expected.
+//
+//    if (!STACK_INIT(&context, nodes, INITIAL_STACK_SIZE)) goto error
+//
+//    if (version_directive) {
+//        version_directive_copy = yaml_malloc(sizeof(yaml_version_directive_t))
+//        if (!version_directive_copy) goto error
+//        version_directive_copy.major = version_directive.major
+//        version_directive_copy.minor = version_directive.minor
+//    }
+//
+//    if (tag_directives_start != tag_directives_end) {
+//        tag_directive *yaml_tag_directive_t
+//        if (!STACK_INIT(&context, tag_directives_copy, INITIAL_STACK_SIZE))
+//            goto error
+//        for (tag_directive = tag_directives_start
+//                tag_directive != tag_directives_end; tag_directive ++) {
+//            assert(tag_directive.handle)
+//            assert(tag_directive.prefix)
+//            if (!yaml_check_utf8(tag_directive.handle,
+//                        strlen((char *)tag_directive.handle)))
+//                goto error
+//            if (!yaml_check_utf8(tag_directive.prefix,
+//                        strlen((char *)tag_directive.prefix)))
+//                goto error
+//            value.handle = yaml_strdup(tag_directive.handle)
+//            value.prefix = yaml_strdup(tag_directive.prefix)
+//            if (!value.handle || !value.prefix) goto error
+//            if (!PUSH(&context, tag_directives_copy, value))
+//                goto error
+//            value.handle = NULL
+//            value.prefix = NULL
+//        }
+//    }
+//
+//    DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy,
+//            tag_directives_copy.start, tag_directives_copy.top,
+//            start_implicit, end_implicit, mark, mark)
+//
+//    return 1
+//
+//error:
+//    STACK_DEL(&context, nodes)
+//    yaml_free(version_directive_copy)
+//    while (!STACK_EMPTY(&context, tag_directives_copy)) {
+//        value yaml_tag_directive_t = POP(&context, tag_directives_copy)
+//        yaml_free(value.handle)
+//        yaml_free(value.prefix)
+//    }
+//    STACK_DEL(&context, tag_directives_copy)
+//    yaml_free(value.handle)
+//    yaml_free(value.prefix)
+//
+//    return 0
+//}
+//
+///*
+// * Destroy a document object.
+// */
+//
+//YAML_DECLARE(void)
+//yaml_document_delete(document *yaml_document_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    tag_directive *yaml_tag_directive_t
+//
+//    context.error = YAML_NO_ERROR // Eliminate a compiler warning.
+//
+//    assert(document) // Non-NULL document object is expected.
+//
+//    while (!STACK_EMPTY(&context, document.nodes)) {
+//        node yaml_node_t = POP(&context, document.nodes)
+//        yaml_free(node.tag)
+//        switch (node.type) {
+//            case YAML_SCALAR_NODE:
+//                yaml_free(node.data.scalar.value)
+//                break
+//            case YAML_SEQUENCE_NODE:
+//                STACK_DEL(&context, node.data.sequence.items)
+//                break
+//            case YAML_MAPPING_NODE:
+//                STACK_DEL(&context, node.data.mapping.pairs)
+//                break
+//            default:
+//                assert(0) // Should not happen.
+//        }
+//    }
+//    STACK_DEL(&context, document.nodes)
+//
+//    yaml_free(document.version_directive)
+//    for (tag_directive = document.tag_directives.start
+//            tag_directive != document.tag_directives.end
+//            tag_directive++) {
+//        yaml_free(tag_directive.handle)
+//        yaml_free(tag_directive.prefix)
+//    }
+//    yaml_free(document.tag_directives.start)
+//
+//    memset(document, 0, sizeof(yaml_document_t))
+//}
+//
+///**
+// * Get a document node.
+// */
+//
+//YAML_DECLARE(yaml_node_t *)
+//yaml_document_get_node(document *yaml_document_t, index int)
+//{
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (index > 0 && document.nodes.start + index <= document.nodes.top) {
+//        return document.nodes.start + index - 1
+//    }
+//    return NULL
+//}
+//
+///**
+// * Get the root object.
+// */
+//
+//YAML_DECLARE(yaml_node_t *)
+//yaml_document_get_root_node(document *yaml_document_t)
+//{
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (document.nodes.top != document.nodes.start) {
+//        return document.nodes.start
+//    }
+//    return NULL
+//}
+//
+///*
+// * Add a scalar node to a document.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_add_scalar(document *yaml_document_t,
+//        tag *yaml_char_t, value *yaml_char_t, length int,
+//        style yaml_scalar_style_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    tag_copy *yaml_char_t = NULL
+//    value_copy *yaml_char_t = NULL
+//    node yaml_node_t
+//
+//    assert(document) // Non-NULL document object is expected.
+//    assert(value) // Non-NULL value is expected.
+//
+//    if (!tag) {
+//        tag = (yaml_char_t *)YAML_DEFAULT_SCALAR_TAG
+//    }
+//
+//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
+//    tag_copy = yaml_strdup(tag)
+//    if (!tag_copy) goto error
+//
+//    if (length < 0) {
+//        length = strlen((char *)value)
+//    }
+//
+//    if (!yaml_check_utf8(value, length)) goto error
+//    value_copy = yaml_malloc(length+1)
+//    if (!value_copy) goto error
+//    memcpy(value_copy, value, length)
+//    value_copy[length] = '\0'
+//
+//    SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark)
+//    if (!PUSH(&context, document.nodes, node)) goto error
+//
+//    return document.nodes.top - document.nodes.start
+//
+//error:
+//    yaml_free(tag_copy)
+//    yaml_free(value_copy)
+//
+//    return 0
+//}
+//
+///*
+// * Add a sequence node to a document.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_add_sequence(document *yaml_document_t,
+//        tag *yaml_char_t, style yaml_sequence_style_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    tag_copy *yaml_char_t = NULL
+//    struct {
+//        start *yaml_node_item_t
+//        end *yaml_node_item_t
+//        top *yaml_node_item_t
+//    } items = { NULL, NULL, NULL }
+//    node yaml_node_t
+//
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (!tag) {
+//        tag = (yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG
+//    }
+//
+//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
+//    tag_copy = yaml_strdup(tag)
+//    if (!tag_copy) goto error
+//
+//    if (!STACK_INIT(&context, items, INITIAL_STACK_SIZE)) goto error
+//
+//    SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end,
+//            style, mark, mark)
+//    if (!PUSH(&context, document.nodes, node)) goto error
+//
+//    return document.nodes.top - document.nodes.start
+//
+//error:
+//    STACK_DEL(&context, items)
+//    yaml_free(tag_copy)
+//
+//    return 0
+//}
+//
+///*
+// * Add a mapping node to a document.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_add_mapping(document *yaml_document_t,
+//        tag *yaml_char_t, style yaml_mapping_style_t)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//    mark yaml_mark_t = { 0, 0, 0 }
+//    tag_copy *yaml_char_t = NULL
+//    struct {
+//        start *yaml_node_pair_t
+//        end *yaml_node_pair_t
+//        top *yaml_node_pair_t
+//    } pairs = { NULL, NULL, NULL }
+//    node yaml_node_t
+//
+//    assert(document) // Non-NULL document object is expected.
+//
+//    if (!tag) {
+//        tag = (yaml_char_t *)YAML_DEFAULT_MAPPING_TAG
+//    }
+//
+//    if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
+//    tag_copy = yaml_strdup(tag)
+//    if (!tag_copy) goto error
+//
+//    if (!STACK_INIT(&context, pairs, INITIAL_STACK_SIZE)) goto error
+//
+//    MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end,
+//            style, mark, mark)
+//    if (!PUSH(&context, document.nodes, node)) goto error
+//
+//    return document.nodes.top - document.nodes.start
+//
+//error:
+//    STACK_DEL(&context, pairs)
+//    yaml_free(tag_copy)
+//
+//    return 0
+//}
+//
+///*
+// * Append an item to a sequence node.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_append_sequence_item(document *yaml_document_t,
+//        sequence int, item int)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//
+//    assert(document) // Non-NULL document is required.
+//    assert(sequence > 0
+//            && document.nodes.start + sequence <= document.nodes.top)
+//                            // Valid sequence id is required.
+//    assert(document.nodes.start[sequence-1].type == YAML_SEQUENCE_NODE)
+//                            // A sequence node is required.
+//    assert(item > 0 && document.nodes.start + item <= document.nodes.top)
+//                            // Valid item id is required.
+//
+//    if (!PUSH(&context,
+//                document.nodes.start[sequence-1].data.sequence.items, item))
+//        return 0
+//
+//    return 1
+//}
+//
+///*
+// * Append a pair of a key and a value to a mapping node.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_append_mapping_pair(document *yaml_document_t,
+//        mapping int, key int, value int)
+//{
+//    struct {
+//        error yaml_error_type_t
+//    } context
+//
+//    pair yaml_node_pair_t
+//
+//    assert(document) // Non-NULL document is required.
+//    assert(mapping > 0
+//            && document.nodes.start + mapping <= document.nodes.top)
+//                            // Valid mapping id is required.
+//    assert(document.nodes.start[mapping-1].type == YAML_MAPPING_NODE)
+//                            // A mapping node is required.
+//    assert(key > 0 && document.nodes.start + key <= document.nodes.top)
+//                            // Valid key id is required.
+//    assert(value > 0 && document.nodes.start + value <= document.nodes.top)
+//                            // Valid value id is required.
+//
+//    pair.key = key
+//    pair.value = value
+//
+//    if (!PUSH(&context,
+//                document.nodes.start[mapping-1].data.mapping.pairs, pair))
+//        return 0
+//
+//    return 1
+//}
+//
+//
--- a/vendor/go.yaml.in/yaml/v2/decode.go
+++ b/vendor/go.yaml.in/yaml/v2/decode.go
@@ -0,0 +1,815 @@
+package yaml
+
+import (
+	"encoding"
+	"encoding/base64"
+	"fmt"
+	"io"
+	"math"
+	"reflect"
+	"strconv"
+	"time"
+)
+
+const (
+	documentNode = 1 << iota
+	mappingNode
+	sequenceNode
+	scalarNode
+	aliasNode
+)
+
+type node struct {
+	kind         int
+	line, column int
+	tag          string
+	// For an alias node, alias holds the resolved alias.
+	alias    *node
+	value    string
+	implicit bool
+	children []*node
+	anchors  map[string]*node
+}
+
+// ----------------------------------------------------------------------------
+// Parser, produces a node tree out of a libyaml event stream.
+
+type parser struct {
+	parser   yaml_parser_t
+	event    yaml_event_t
+	doc      *node
+	doneInit bool
+}
+
+func newParser(b []byte) *parser {
+	p := parser{}
+	if !yaml_parser_initialize(&p.parser) {
+		panic("failed to initialize YAML emitter")
+	}
+	if len(b) == 0 {
+		b = []byte{'\n'}
+	}
+	yaml_parser_set_input_string(&p.parser, b)
+	return &p
+}
+
+func newParserFromReader(r io.Reader) *parser {
+	p := parser{}
+	if !yaml_parser_initialize(&p.parser) {
+		panic("failed to initialize YAML emitter")
+	}
+	yaml_parser_set_input_reader(&p.parser, r)
+	return &p
+}
+
+func (p *parser) init() {
+	if p.doneInit {
+		return
+	}
+	p.expect(yaml_STREAM_START_EVENT)
+	p.doneInit = true
+}
+
+func (p *parser) destroy() {
+	if p.event.typ != yaml_NO_EVENT {
+		yaml_event_delete(&p.event)
+	}
+	yaml_parser_delete(&p.parser)
+}
+
+// expect consumes an event from the event stream and
+// checks that it's of the expected type.
+func (p *parser) expect(e yaml_event_type_t) {
+	if p.event.typ == yaml_NO_EVENT {
+		if !yaml_parser_parse(&p.parser, &p.event) {
+			p.fail()
+		}
+	}
+	if p.event.typ == yaml_STREAM_END_EVENT {
+		failf("attempted to go past the end of stream; corrupted value?")
+	}
+	if p.event.typ != e {
+		p.parser.problem = fmt.Sprintf("expected %s event but got %s", e, p.event.typ)
+		p.fail()
+	}
+	yaml_event_delete(&p.event)
+	p.event.typ = yaml_NO_EVENT
+}
+
+// peek peeks at the next event in the event stream,
+// puts the results into p.event and returns the event type.
+func (p *parser) peek() yaml_event_type_t {
+	if p.event.typ != yaml_NO_EVENT {
+		return p.event.typ
+	}
+	if !yaml_parser_parse(&p.parser, &p.event) {
+		p.fail()
+	}
+	return p.event.typ
+}
+
+func (p *parser) fail() {
+	var where string
+	var line int
+	if p.parser.problem_mark.line != 0 {
+		line = p.parser.problem_mark.line
+		// Scanner errors don't iterate line before returning error
+		if p.parser.error == yaml_SCANNER_ERROR {
+			line++
+		}
+	} else if p.parser.context_mark.line != 0 {
+		line = p.parser.context_mark.line
+	}
+	if line != 0 {
+		where = "line " + strconv.Itoa(line) + ": "
+	}
+	var msg string
+	if len(p.parser.problem) > 0 {
+		msg = p.parser.problem
+	} else {
+		msg = "unknown problem parsing YAML content"
+	}
+	failf("%s%s", where, msg)
+}
+
+func (p *parser) anchor(n *node, anchor []byte) {
+	if anchor != nil {
+		p.doc.anchors[string(anchor)] = n
+	}
+}
+
+func (p *parser) parse() *node {
+	p.init()
+	switch p.peek() {
+	case yaml_SCALAR_EVENT:
+		return p.scalar()
+	case yaml_ALIAS_EVENT:
+		return p.alias()
+	case yaml_MAPPING_START_EVENT:
+		return p.mapping()
+	case yaml_SEQUENCE_START_EVENT:
+		return p.sequence()
+	case yaml_DOCUMENT_START_EVENT:
+		return p.document()
+	case yaml_STREAM_END_EVENT:
+		// Happens when attempting to decode an empty buffer.
+		return nil
+	default:
+		panic("attempted to parse unknown event: " + p.event.typ.String())
+	}
+}
+
+func (p *parser) node(kind int) *node {
+	return &node{
+		kind:   kind,
+		line:   p.event.start_mark.line,
+		column: p.event.start_mark.column,
+	}
+}
+
+func (p *parser) document() *node {
+	n := p.node(documentNode)
+	n.anchors = make(map[string]*node)
+	p.doc = n
+	p.expect(yaml_DOCUMENT_START_EVENT)
+	n.children = append(n.children, p.parse())
+	p.expect(yaml_DOCUMENT_END_EVENT)
+	return n
+}
+
+func (p *parser) alias() *node {
+	n := p.node(aliasNode)
+	n.value = string(p.event.anchor)
+	n.alias = p.doc.anchors[n.value]
+	if n.alias == nil {
+		failf("unknown anchor '%s' referenced", n.value)
+	}
+	p.expect(yaml_ALIAS_EVENT)
+	return n
+}
+
+func (p *parser) scalar() *node {
+	n := p.node(scalarNode)
+	n.value = string(p.event.value)
+	n.tag = string(p.event.tag)
+	n.implicit = p.event.implicit
+	p.anchor(n, p.event.anchor)
+	p.expect(yaml_SCALAR_EVENT)
+	return n
+}
+
+func (p *parser) sequence() *node {
+	n := p.node(sequenceNode)
+	p.anchor(n, p.event.anchor)
+	p.expect(yaml_SEQUENCE_START_EVENT)
+	for p.peek() != yaml_SEQUENCE_END_EVENT {
+		n.children = append(n.children, p.parse())
+	}
+	p.expect(yaml_SEQUENCE_END_EVENT)
+	return n
+}
+
+func (p *parser) mapping() *node {
+	n := p.node(mappingNode)
+	p.anchor(n, p.event.anchor)
+	p.expect(yaml_MAPPING_START_EVENT)
+	for p.peek() != yaml_MAPPING_END_EVENT {
+		n.children = append(n.children, p.parse(), p.parse())
+	}
+	p.expect(yaml_MAPPING_END_EVENT)
+	return n
+}
+
+// ----------------------------------------------------------------------------
+// Decoder, unmarshals a node into a provided value.
+
+type decoder struct {
+	doc     *node
+	aliases map[*node]bool
+	mapType reflect.Type
+	terrors []string
+	strict  bool
+
+	decodeCount int
+	aliasCount  int
+	aliasDepth  int
+}
+
+var (
+	mapItemType    = reflect.TypeOf(MapItem{})
+	durationType   = reflect.TypeOf(time.Duration(0))
+	defaultMapType = reflect.TypeOf(map[interface{}]interface{}{})
+	ifaceType      = defaultMapType.Elem()
+	timeType       = reflect.TypeOf(time.Time{})
+	ptrTimeType    = reflect.TypeOf(&time.Time{})
+)
+
+func newDecoder(strict bool) *decoder {
+	d := &decoder{mapType: defaultMapType, strict: strict}
+	d.aliases = make(map[*node]bool)
+	return d
+}
+
+func (d *decoder) terror(n *node, tag string, out reflect.Value) {
+	if n.tag != "" {
+		tag = n.tag
+	}
+	value := n.value
+	if tag != yaml_SEQ_TAG && tag != yaml_MAP_TAG {
+		if len(value) > 10 {
+			value = " `" + value[:7] + "...`"
+		} else {
+			value = " `" + value + "`"
+		}
+	}
+	d.terrors = append(d.terrors, fmt.Sprintf("line %d: cannot unmarshal %s%s into %s", n.line+1, shortTag(tag), value, out.Type()))
+}
+
+func (d *decoder) callUnmarshaler(n *node, u Unmarshaler) (good bool) {
+	terrlen := len(d.terrors)
+	err := u.UnmarshalYAML(func(v interface{}) (err error) {
+		defer handleErr(&err)
+		d.unmarshal(n, reflect.ValueOf(v))
+		if len(d.terrors) > terrlen {
+			issues := d.terrors[terrlen:]
+			d.terrors = d.terrors[:terrlen]
+			return &TypeError{issues}
+		}
+		return nil
+	})
+	if e, ok := err.(*TypeError); ok {
+		d.terrors = append(d.terrors, e.Errors...)
+		return false
+	}
+	if err != nil {
+		fail(err)
+	}
+	return true
+}
+
+// d.prepare initializes and dereferences pointers and calls UnmarshalYAML
+// if a value is found to implement it.
+// It returns the initialized and dereferenced out value, whether
+// unmarshalling was already done by UnmarshalYAML, and if so whether
+// its types unmarshalled appropriately.
+//
+// If n holds a null value, prepare returns before doing anything.
+func (d *decoder) prepare(n *node, out reflect.Value) (newout reflect.Value, unmarshaled, good bool) {
+	if n.tag == yaml_NULL_TAG || n.kind == scalarNode && n.tag == "" && (n.value == "null" || n.value == "~" || n.value == "" && n.implicit) {
+		return out, false, false
+	}
+	again := true
+	for again {
+		again = false
+		if out.Kind() == reflect.Ptr {
+			if out.IsNil() {
+				out.Set(reflect.New(out.Type().Elem()))
+			}
+			out = out.Elem()
+			again = true
+		}
+		if out.CanAddr() {
+			if u, ok := out.Addr().Interface().(Unmarshaler); ok {
+				good = d.callUnmarshaler(n, u)
+				return out, true, good
+			}
+		}
+	}
+	return out, false, false
+}
+
+const (
+	// 400,000 decode operations is ~500kb of dense object declarations, or
+	// ~5kb of dense object declarations with 10000% alias expansion
+	alias_ratio_range_low = 400000
+
+	// 4,000,000 decode operations is ~5MB of dense object declarations, or
+	// ~4.5MB of dense object declarations with 10% alias expansion
+	alias_ratio_range_high = 4000000
+
+	// alias_ratio_range is the range over which we scale allowed alias ratios
+	alias_ratio_range = float64(alias_ratio_range_high - alias_ratio_range_low)
+)
+
+func allowedAliasRatio(decodeCount int) float64 {
+	switch {
+	case decodeCount <= alias_ratio_range_low:
+		// allow 99% to come from alias expansion for small-to-medium documents
+		return 0.99
+	case decodeCount >= alias_ratio_range_high:
+		// allow 10% to come from alias expansion for very large documents
+		return 0.10
+	default:
+		// scale smoothly from 99% down to 10% over the range.
+		// this maps to 396,000 - 400,000 allowed alias-driven decodes over the range.
+		// 400,000 decode operations is ~100MB of allocations in worst-case scenarios (single-item maps).
+		return 0.99 - 0.89*(float64(decodeCount-alias_ratio_range_low)/alias_ratio_range)
+	}
+}
+
+func (d *decoder) unmarshal(n *node, out reflect.Value) (good bool) {
+	d.decodeCount++
+	if d.aliasDepth > 0 {
+		d.aliasCount++
+	}
+	if d.aliasCount > 100 && d.decodeCount > 1000 && float64(d.aliasCount)/float64(d.decodeCount) > allowedAliasRatio(d.decodeCount) {
+		failf("document contains excessive aliasing")
+	}
+	switch n.kind {
+	case documentNode:
+		return d.document(n, out)
+	case aliasNode:
+		return d.alias(n, out)
+	}
+	out, unmarshaled, good := d.prepare(n, out)
+	if unmarshaled {
+		return good
+	}
+	switch n.kind {
+	case scalarNode:
+		good = d.scalar(n, out)
+	case mappingNode:
+		good = d.mapping(n, out)
+	case sequenceNode:
+		good = d.sequence(n, out)
+	default:
+		panic("internal error: unknown node kind: " + strconv.Itoa(n.kind))
+	}
+	return good
+}
+
+func (d *decoder) document(n *node, out reflect.Value) (good bool) {
+	if len(n.children) == 1 {
+		d.doc = n
+		d.unmarshal(n.children[0], out)
+		return true
+	}
+	return false
+}
+
+func (d *decoder) alias(n *node, out reflect.Value) (good bool) {
+	if d.aliases[n] {
+		// TODO this could actually be allowed in some circumstances.
+		failf("anchor '%s' value contains itself", n.value)
+	}
+	d.aliases[n] = true
+	d.aliasDepth++
+	good = d.unmarshal(n.alias, out)
+	d.aliasDepth--
+	delete(d.aliases, n)
+	return good
+}
+
+var zeroValue reflect.Value
+
+func resetMap(out reflect.Value) {
+	for _, k := range out.MapKeys() {
+		out.SetMapIndex(k, zeroValue)
+	}
+}
+
+func (d *decoder) scalar(n *node, out reflect.Value) bool {
+	var tag string
+	var resolved interface{}
+	if n.tag == "" && !n.implicit {
+		tag = yaml_STR_TAG
+		resolved = n.value
+	} else {
+		tag, resolved = resolve(n.tag, n.value)
+		if tag == yaml_BINARY_TAG {
+			data, err := base64.StdEncoding.DecodeString(resolved.(string))
+			if err != nil {
+				failf("!!binary value contains invalid base64 data")
+			}
+			resolved = string(data)
+		}
+	}
+	if resolved == nil {
+		if out.Kind() == reflect.Map && !out.CanAddr() {
+			resetMap(out)
+		} else {
+			out.Set(reflect.Zero(out.Type()))
+		}
+		return true
+	}
+	if resolvedv := reflect.ValueOf(resolved); out.Type() == resolvedv.Type() {
+		// We've resolved to exactly the type we want, so use that.
+		out.Set(resolvedv)
+		return true
+	}
+	// Perhaps we can use the value as a TextUnmarshaler to
+	// set its value.
+	if out.CanAddr() {
+		u, ok := out.Addr().Interface().(encoding.TextUnmarshaler)
+		if ok {
+			var text []byte
+			if tag == yaml_BINARY_TAG {
+				text = []byte(resolved.(string))
+			} else {
+				// We let any value be unmarshaled into TextUnmarshaler.
+				// That might be more lax than we'd like, but the
+				// TextUnmarshaler itself should bowl out any dubious values.
+				text = []byte(n.value)
+			}
+			err := u.UnmarshalText(text)
+			if err != nil {
+				fail(err)
+			}
+			return true
+		}
+	}
+	switch out.Kind() {
+	case reflect.String:
+		if tag == yaml_BINARY_TAG {
+			out.SetString(resolved.(string))
+			return true
+		}
+		if resolved != nil {
+			out.SetString(n.value)
+			return true
+		}
+	case reflect.Interface:
+		if resolved == nil {
+			out.Set(reflect.Zero(out.Type()))
+		} else if tag == yaml_TIMESTAMP_TAG {
+			// It looks like a timestamp but for backward compatibility
+			// reasons we set it as a string, so that code that unmarshals
+			// timestamp-like values into interface{} will continue to
+			// see a string and not a time.Time.
+			// TODO(v3) Drop this.
+			out.Set(reflect.ValueOf(n.value))
+		} else {
+			out.Set(reflect.ValueOf(resolved))
+		}
+		return true
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		switch resolved := resolved.(type) {
+		case int:
+			if !out.OverflowInt(int64(resolved)) {
+				out.SetInt(int64(resolved))
+				return true
+			}
+		case int64:
+			if !out.OverflowInt(resolved) {
+				out.SetInt(resolved)
+				return true
+			}
+		case uint64:
+			if resolved <= math.MaxInt64 && !out.OverflowInt(int64(resolved)) {
+				out.SetInt(int64(resolved))
+				return true
+			}
+		case float64:
+			if resolved <= math.MaxInt64 && !out.OverflowInt(int64(resolved)) {
+				out.SetInt(int64(resolved))
+				return true
+			}
+		case string:
+			if out.Type() == durationType {
+				d, err := time.ParseDuration(resolved)
+				if err == nil {
+					out.SetInt(int64(d))
+					return true
+				}
+			}
+		}
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		switch resolved := resolved.(type) {
+		case int:
+			if resolved >= 0 && !out.OverflowUint(uint64(resolved)) {
+				out.SetUint(uint64(resolved))
+				return true
+			}
+		case int64:
+			if resolved >= 0 && !out.OverflowUint(uint64(resolved)) {
+				out.SetUint(uint64(resolved))
+				return true
+			}
+		case uint64:
+			if !out.OverflowUint(uint64(resolved)) {
+				out.SetUint(uint64(resolved))
+				return true
+			}
+		case float64:
+			if resolved <= math.MaxUint64 && !out.OverflowUint(uint64(resolved)) {
+				out.SetUint(uint64(resolved))
+				return true
+			}
+		}
+	case reflect.Bool:
+		switch resolved := resolved.(type) {
+		case bool:
+			out.SetBool(resolved)
+			return true
+		}
+	case reflect.Float32, reflect.Float64:
+		switch resolved := resolved.(type) {
+		case int:
+			out.SetFloat(float64(resolved))
+			return true
+		case int64:
+			out.SetFloat(float64(resolved))
+			return true
+		case uint64:
+			out.SetFloat(float64(resolved))
+			return true
+		case float64:
+			out.SetFloat(resolved)
+			return true
+		}
+	case reflect.Struct:
+		if resolvedv := reflect.ValueOf(resolved); out.Type() == resolvedv.Type() {
+			out.Set(resolvedv)
+			return true
+		}
+	case reflect.Ptr:
+		if out.Type().Elem() == reflect.TypeOf(resolved) {
+			// TODO DOes this make sense? When is out a Ptr except when decoding a nil value?
+			elem := reflect.New(out.Type().Elem())
+			elem.Elem().Set(reflect.ValueOf(resolved))
+			out.Set(elem)
+			return true
+		}
+	}
+	d.terror(n, tag, out)
+	return false
+}
+
+func settableValueOf(i interface{}) reflect.Value {
+	v := reflect.ValueOf(i)
+	sv := reflect.New(v.Type()).Elem()
+	sv.Set(v)
+	return sv
+}
+
+func (d *decoder) sequence(n *node, out reflect.Value) (good bool) {
+	l := len(n.children)
+
+	var iface reflect.Value
+	switch out.Kind() {
+	case reflect.Slice:
+		out.Set(reflect.MakeSlice(out.Type(), l, l))
+	case reflect.Array:
+		if l != out.Len() {
+			failf("invalid array: want %d elements but got %d", out.Len(), l)
+		}
+	case reflect.Interface:
+		// No type hints. Will have to use a generic sequence.
+		iface = out
+		out = settableValueOf(make([]interface{}, l))
+	default:
+		d.terror(n, yaml_SEQ_TAG, out)
+		return false
+	}
+	et := out.Type().Elem()
+
+	j := 0
+	for i := 0; i < l; i++ {
+		e := reflect.New(et).Elem()
+		if ok := d.unmarshal(n.children[i], e); ok {
+			out.Index(j).Set(e)
+			j++
+		}
+	}
+	if out.Kind() != reflect.Array {
+		out.Set(out.Slice(0, j))
+	}
+	if iface.IsValid() {
+		iface.Set(out)
+	}
+	return true
+}
+
+func (d *decoder) mapping(n *node, out reflect.Value) (good bool) {
+	switch out.Kind() {
+	case reflect.Struct:
+		return d.mappingStruct(n, out)
+	case reflect.Slice:
+		return d.mappingSlice(n, out)
+	case reflect.Map:
+		// okay
+	case reflect.Interface:
+		if d.mapType.Kind() == reflect.Map {
+			iface := out
+			out = reflect.MakeMap(d.mapType)
+			iface.Set(out)
+		} else {
+			slicev := reflect.New(d.mapType).Elem()
+			if !d.mappingSlice(n, slicev) {
+				return false
+			}
+			out.Set(slicev)
+			return true
+		}
+	default:
+		d.terror(n, yaml_MAP_TAG, out)
+		return false
+	}
+	outt := out.Type()
+	kt := outt.Key()
+	et := outt.Elem()
+
+	mapType := d.mapType
+	if outt.Key() == ifaceType && outt.Elem() == ifaceType {
+		d.mapType = outt
+	}
+
+	if out.IsNil() {
+		out.Set(reflect.MakeMap(outt))
+	}
+	l := len(n.children)
+	for i := 0; i < l; i += 2 {
+		if isMerge(n.children[i]) {
+			d.merge(n.children[i+1], out)
+			continue
+		}
+		k := reflect.New(kt).Elem()
+		if d.unmarshal(n.children[i], k) {
+			kkind := k.Kind()
+			if kkind == reflect.Interface {
+				kkind = k.Elem().Kind()
+			}
+			if kkind == reflect.Map || kkind == reflect.Slice {
+				failf("invalid map key: %#v", k.Interface())
+			}
+			e := reflect.New(et).Elem()
+			if d.unmarshal(n.children[i+1], e) {
+				d.setMapIndex(n.children[i+1], out, k, e)
+			}
+		}
+	}
+	d.mapType = mapType
+	return true
+}
+
+func (d *decoder) setMapIndex(n *node, out, k, v reflect.Value) {
+	if d.strict && out.MapIndex(k) != zeroValue {
+		d.terrors = append(d.terrors, fmt.Sprintf("line %d: key %#v already set in map", n.line+1, k.Interface()))
+		return
+	}
+	out.SetMapIndex(k, v)
+}
+
+func (d *decoder) mappingSlice(n *node, out reflect.Value) (good bool) {
+	outt := out.Type()
+	if outt.Elem() != mapItemType {
+		d.terror(n, yaml_MAP_TAG, out)
+		return false
+	}
+
+	mapType := d.mapType
+	d.mapType = outt
+
+	var slice []MapItem
+	var l = len(n.children)
+	for i := 0; i < l; i += 2 {
+		if isMerge(n.children[i]) {
+			d.merge(n.children[i+1], out)
+			continue
+		}
+		item := MapItem{}
+		k := reflect.ValueOf(&item.Key).Elem()
+		if d.unmarshal(n.children[i], k) {
+			v := reflect.ValueOf(&item.Value).Elem()
+			if d.unmarshal(n.children[i+1], v) {
+				slice = append(slice, item)
+			}
+		}
+	}
+	out.Set(reflect.ValueOf(slice))
+	d.mapType = mapType
+	return true
+}
+
+func (d *decoder) mappingStruct(n *node, out reflect.Value) (good bool) {
+	sinfo, err := getStructInfo(out.Type())
+	if err != nil {
+		panic(err)
+	}
+	name := settableValueOf("")
+	l := len(n.children)
+
+	var inlineMap reflect.Value
+	var elemType reflect.Type
+	if sinfo.InlineMap != -1 {
+		inlineMap = out.Field(sinfo.InlineMap)
+		inlineMap.Set(reflect.New(inlineMap.Type()).Elem())
+		elemType = inlineMap.Type().Elem()
+	}
+
+	var doneFields []bool
+	if d.strict {
+		doneFields = make([]bool, len(sinfo.FieldsList))
+	}
+	for i := 0; i < l; i += 2 {
+		ni := n.children[i]
+		if isMerge(ni) {
+			d.merge(n.children[i+1], out)
+			continue
+		}
+		if !d.unmarshal(ni, name) {
+			continue
+		}
+		if info, ok := sinfo.FieldsMap[name.String()]; ok {
+			if d.strict {
+				if doneFields[info.Id] {
+					d.terrors = append(d.terrors, fmt.Sprintf("line %d: field %s already set in type %s", ni.line+1, name.String(), out.Type()))
+					continue
+				}
+				doneFields[info.Id] = true
+			}
+			var field reflect.Value
+			if info.Inline == nil {
+				field = out.Field(info.Num)
+			} else {
+				field = out.FieldByIndex(info.Inline)
+			}
+			d.unmarshal(n.children[i+1], field)
+		} else if sinfo.InlineMap != -1 {
+			if inlineMap.IsNil() {
+				inlineMap.Set(reflect.MakeMap(inlineMap.Type()))
+			}
+			value := reflect.New(elemType).Elem()
+			d.unmarshal(n.children[i+1], value)
+			d.setMapIndex(n.children[i+1], inlineMap, name, value)
+		} else if d.strict {
+			d.terrors = append(d.terrors, fmt.Sprintf("line %d: field %s not found in type %s", ni.line+1, name.String(), out.Type()))
+		}
+	}
+	return true
+}
+
+func failWantMap() {
+	failf("map merge requires map or sequence of maps as the value")
+}
+
+func (d *decoder) merge(n *node, out reflect.Value) {
+	switch n.kind {
+	case mappingNode:
+		d.unmarshal(n, out)
+	case aliasNode:
+		if n.alias != nil && n.alias.kind != mappingNode {
+			failWantMap()
+		}
+		d.unmarshal(n, out)
+	case sequenceNode:
+		// Step backwards as earlier nodes take precedence.
+		for i := len(n.children) - 1; i >= 0; i-- {
+			ni := n.children[i]
+			if ni.kind == aliasNode {
+				if ni.alias != nil && ni.alias.kind != mappingNode {
+					failWantMap()
+				}
+			} else if ni.kind != mappingNode {
+				failWantMap()
+			}
+			d.unmarshal(ni, out)
+		}
+	default:
+		failWantMap()
+	}
+}
+
+func isMerge(n *node) bool {
+	return n.kind == scalarNode && n.value == "<<" && (n.implicit == true || n.tag == yaml_MERGE_TAG)
+}
--- a/vendor/go.yaml.in/yaml/v2/emitterc.go
+++ b/vendor/go.yaml.in/yaml/v2/emitterc.go
--- a/vendor/go.yaml.in/yaml/v2/encode.go
+++ b/vendor/go.yaml.in/yaml/v2/encode.go
@@ -0,0 +1,390 @@
+package yaml
+
+import (
+	"encoding"
+	"fmt"
+	"io"
+	"reflect"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+	"unicode/utf8"
+)
+
+// jsonNumber is the interface of the encoding/json.Number datatype.
+// Repeating the interface here avoids a dependency on encoding/json, and also
+// supports other libraries like jsoniter, which use a similar datatype with
+// the same interface. Detecting this interface is useful when dealing with
+// structures containing json.Number, which is a string under the hood. The
+// encoder should prefer the use of Int64(), Float64() and string(), in that
+// order, when encoding this type.
+type jsonNumber interface {
+	Float64() (float64, error)
+	Int64() (int64, error)
+	String() string
+}
+
+type encoder struct {
+	emitter yaml_emitter_t
+	event   yaml_event_t
+	out     []byte
+	flow    bool
+	// doneInit holds whether the initial stream_start_event has been
+	// emitted.
+	doneInit bool
+}
+
+func newEncoder() *encoder {
+	e := &encoder{}
+	yaml_emitter_initialize(&e.emitter)
+	yaml_emitter_set_output_string(&e.emitter, &e.out)
+	yaml_emitter_set_unicode(&e.emitter, true)
+	return e
+}
+
+func newEncoderWithWriter(w io.Writer) *encoder {
+	e := &encoder{}
+	yaml_emitter_initialize(&e.emitter)
+	yaml_emitter_set_output_writer(&e.emitter, w)
+	yaml_emitter_set_unicode(&e.emitter, true)
+	return e
+}
+
+func (e *encoder) init() {
+	if e.doneInit {
+		return
+	}
+	yaml_stream_start_event_initialize(&e.event, yaml_UTF8_ENCODING)
+	e.emit()
+	e.doneInit = true
+}
+
+func (e *encoder) finish() {
+	e.emitter.open_ended = false
+	yaml_stream_end_event_initialize(&e.event)
+	e.emit()
+}
+
+func (e *encoder) destroy() {
+	yaml_emitter_delete(&e.emitter)
+}
+
+func (e *encoder) emit() {
+	// This will internally delete the e.event value.
+	e.must(yaml_emitter_emit(&e.emitter, &e.event))
+}
+
+func (e *encoder) must(ok bool) {
+	if !ok {
+		msg := e.emitter.problem
+		if msg == "" {
+			msg = "unknown problem generating YAML content"
+		}
+		failf("%s", msg)
+	}
+}
+
+func (e *encoder) marshalDoc(tag string, in reflect.Value) {
+	e.init()
+	yaml_document_start_event_initialize(&e.event, nil, nil, true)
+	e.emit()
+	e.marshal(tag, in)
+	yaml_document_end_event_initialize(&e.event, true)
+	e.emit()
+}
+
+func (e *encoder) marshal(tag string, in reflect.Value) {
+	if !in.IsValid() || in.Kind() == reflect.Ptr && in.IsNil() {
+		e.nilv()
+		return
+	}
+	iface := in.Interface()
+	switch m := iface.(type) {
+	case jsonNumber:
+		integer, err := m.Int64()
+		if err == nil {
+			// In this case the json.Number is a valid int64
+			in = reflect.ValueOf(integer)
+			break
+		}
+		float, err := m.Float64()
+		if err == nil {
+			// In this case the json.Number is a valid float64
+			in = reflect.ValueOf(float)
+			break
+		}
+		// fallback case - no number could be obtained
+		in = reflect.ValueOf(m.String())
+	case time.Time, *time.Time:
+		// Although time.Time implements TextMarshaler,
+		// we don't want to treat it as a string for YAML
+		// purposes because YAML has special support for
+		// timestamps.
+	case Marshaler:
+		v, err := m.MarshalYAML()
+		if err != nil {
+			fail(err)
+		}
+		if v == nil {
+			e.nilv()
+			return
+		}
+		in = reflect.ValueOf(v)
+	case encoding.TextMarshaler:
+		text, err := m.MarshalText()
+		if err != nil {
+			fail(err)
+		}
+		in = reflect.ValueOf(string(text))
+	case nil:
+		e.nilv()
+		return
+	}
+	switch in.Kind() {
+	case reflect.Interface:
+		e.marshal(tag, in.Elem())
+	case reflect.Map:
+		e.mapv(tag, in)
+	case reflect.Ptr:
+		if in.Type() == ptrTimeType {
+			e.timev(tag, in.Elem())
+		} else {
+			e.marshal(tag, in.Elem())
+		}
+	case reflect.Struct:
+		if in.Type() == timeType {
+			e.timev(tag, in)
+		} else {
+			e.structv(tag, in)
+		}
+	case reflect.Slice, reflect.Array:
+		if in.Type().Elem() == mapItemType {
+			e.itemsv(tag, in)
+		} else {
+			e.slicev(tag, in)
+		}
+	case reflect.String:
+		e.stringv(tag, in)
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		if in.Type() == durationType {
+			e.stringv(tag, reflect.ValueOf(iface.(time.Duration).String()))
+		} else {
+			e.intv(tag, in)
+		}
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		e.uintv(tag, in)
+	case reflect.Float32, reflect.Float64:
+		e.floatv(tag, in)
+	case reflect.Bool:
+		e.boolv(tag, in)
+	default:
+		panic("cannot marshal type: " + in.Type().String())
+	}
+}
+
+func (e *encoder) mapv(tag string, in reflect.Value) {
+	e.mappingv(tag, func() {
+		keys := keyList(in.MapKeys())
+		sort.Sort(keys)
+		for _, k := range keys {
+			e.marshal("", k)
+			e.marshal("", in.MapIndex(k))
+		}
+	})
+}
+
+func (e *encoder) itemsv(tag string, in reflect.Value) {
+	e.mappingv(tag, func() {
+		slice := in.Convert(reflect.TypeOf([]MapItem{})).Interface().([]MapItem)
+		for _, item := range slice {
+			e.marshal("", reflect.ValueOf(item.Key))
+			e.marshal("", reflect.ValueOf(item.Value))
+		}
+	})
+}
+
+func (e *encoder) structv(tag string, in reflect.Value) {
+	sinfo, err := getStructInfo(in.Type())
+	if err != nil {
+		panic(err)
+	}
+	e.mappingv(tag, func() {
+		for _, info := range sinfo.FieldsList {
+			var value reflect.Value
+			if info.Inline == nil {
+				value = in.Field(info.Num)
+			} else {
+				value = in.FieldByIndex(info.Inline)
+			}
+			if info.OmitEmpty && isZero(value) {
+				continue
+			}
+			e.marshal("", reflect.ValueOf(info.Key))
+			e.flow = info.Flow
+			e.marshal("", value)
+		}
+		if sinfo.InlineMap >= 0 {
+			m := in.Field(sinfo.InlineMap)
+			if m.Len() > 0 {
+				e.flow = false
+				keys := keyList(m.MapKeys())
+				sort.Sort(keys)
+				for _, k := range keys {
+					if _, found := sinfo.FieldsMap[k.String()]; found {
+						panic(fmt.Sprintf("Can't have key %q in inlined map; conflicts with struct field", k.String()))
+					}
+					e.marshal("", k)
+					e.flow = false
+					e.marshal("", m.MapIndex(k))
+				}
+			}
+		}
+	})
+}
+
+func (e *encoder) mappingv(tag string, f func()) {
+	implicit := tag == ""
+	style := yaml_BLOCK_MAPPING_STYLE
+	if e.flow {
+		e.flow = false
+		style = yaml_FLOW_MAPPING_STYLE
+	}
+	yaml_mapping_start_event_initialize(&e.event, nil, []byte(tag), implicit, style)
+	e.emit()
+	f()
+	yaml_mapping_end_event_initialize(&e.event)
+	e.emit()
+}
+
+func (e *encoder) slicev(tag string, in reflect.Value) {
+	implicit := tag == ""
+	style := yaml_BLOCK_SEQUENCE_STYLE
+	if e.flow {
+		e.flow = false
+		style = yaml_FLOW_SEQUENCE_STYLE
+	}
+	e.must(yaml_sequence_start_event_initialize(&e.event, nil, []byte(tag), implicit, style))
+	e.emit()
+	n := in.Len()
+	for i := 0; i < n; i++ {
+		e.marshal("", in.Index(i))
+	}
+	e.must(yaml_sequence_end_event_initialize(&e.event))
+	e.emit()
+}
+
+// isBase60 returns whether s is in base 60 notation as defined in YAML 1.1.
+//
+// The base 60 float notation in YAML 1.1 is a terrible idea and is unsupported
+// in YAML 1.2 and by this package, but these should be marshalled quoted for
+// the time being for compatibility with other parsers.
+func isBase60Float(s string) (result bool) {
+	// Fast path.
+	if s == "" {
+		return false
+	}
+	c := s[0]
+	if !(c == '+' || c == '-' || c >= '0' && c <= '9') || strings.IndexByte(s, ':') < 0 {
+		return false
+	}
+	// Do the full match.
+	return base60float.MatchString(s)
+}
+
+// From http://yaml.org/type/float.html, except the regular expression there
+// is bogus. In practice parsers do not enforce the "\.[0-9_]*" suffix.
+var base60float = regexp.MustCompile(`^[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+(?:\.[0-9_]*)?$`)
+
+func (e *encoder) stringv(tag string, in reflect.Value) {
+	var style yaml_scalar_style_t
+	s := in.String()
+	canUsePlain := true
+	switch {
+	case !utf8.ValidString(s):
+		if tag == yaml_BINARY_TAG {
+			failf("explicitly tagged !!binary data must be base64-encoded")
+		}
+		if tag != "" {
+			failf("cannot marshal invalid UTF-8 data as %s", shortTag(tag))
+		}
+		// It can't be encoded directly as YAML so use a binary tag
+		// and encode it as base64.
+		tag = yaml_BINARY_TAG
+		s = encodeBase64(s)
+	case tag == "":
+		// Check to see if it would resolve to a specific
+		// tag when encoded unquoted. If it doesn't,
+		// there's no need to quote it.
+		rtag, _ := resolve("", s)
+		canUsePlain = rtag == yaml_STR_TAG && !isBase60Float(s)
+	}
+	// Note: it's possible for user code to emit invalid YAML
+	// if they explicitly specify a tag and a string containing
+	// text that's incompatible with that tag.
+	switch {
+	case strings.Contains(s, "\n"):
+		style = yaml_LITERAL_SCALAR_STYLE
+	case canUsePlain:
+		style = yaml_PLAIN_SCALAR_STYLE
+	default:
+		style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+	}
+	e.emitScalar(s, "", tag, style)
+}
+
+func (e *encoder) boolv(tag string, in reflect.Value) {
+	var s string
+	if in.Bool() {
+		s = "true"
+	} else {
+		s = "false"
+	}
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) intv(tag string, in reflect.Value) {
+	s := strconv.FormatInt(in.Int(), 10)
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) uintv(tag string, in reflect.Value) {
+	s := strconv.FormatUint(in.Uint(), 10)
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) timev(tag string, in reflect.Value) {
+	t := in.Interface().(time.Time)
+	s := t.Format(time.RFC3339Nano)
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) floatv(tag string, in reflect.Value) {
+	// Issue #352: When formatting, use the precision of the underlying value
+	precision := 64
+	if in.Kind() == reflect.Float32 {
+		precision = 32
+	}
+
+	s := strconv.FormatFloat(in.Float(), 'g', -1, precision)
+	switch s {
+	case "+Inf":
+		s = ".inf"
+	case "-Inf":
+		s = "-.inf"
+	case "NaN":
+		s = ".nan"
+	}
+	e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) nilv() {
+	e.emitScalar("null", "", "", yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) emitScalar(value, anchor, tag string, style yaml_scalar_style_t) {
+	implicit := tag == ""
+	e.must(yaml_scalar_event_initialize(&e.event, []byte(anchor), []byte(tag), []byte(value), implicit, implicit, style))
+	e.emit()
+}
--- a/vendor/go.yaml.in/yaml/v2/parserc.go
+++ b/vendor/go.yaml.in/yaml/v2/parserc.go
--- a/vendor/go.yaml.in/yaml/v2/readerc.go
+++ b/vendor/go.yaml.in/yaml/v2/readerc.go
@@ -0,0 +1,412 @@
+package yaml
+
+import (
+	"io"
+)
+
+// Set the reader error and return 0.
+func yaml_parser_set_reader_error(parser *yaml_parser_t, problem string, offset int, value int) bool {
+	parser.error = yaml_READER_ERROR
+	parser.problem = problem
+	parser.problem_offset = offset
+	parser.problem_value = value
+	return false
+}
+
+// Byte order marks.
+const (
+	bom_UTF8    = "\xef\xbb\xbf"
+	bom_UTF16LE = "\xff\xfe"
+	bom_UTF16BE = "\xfe\xff"
+)
+
+// Determine the input stream encoding by checking the BOM symbol. If no BOM is
+// found, the UTF-8 encoding is assumed. Return 1 on success, 0 on failure.
+func yaml_parser_determine_encoding(parser *yaml_parser_t) bool {
+	// Ensure that we had enough bytes in the raw buffer.
+	for !parser.eof && len(parser.raw_buffer)-parser.raw_buffer_pos < 3 {
+		if !yaml_parser_update_raw_buffer(parser) {
+			return false
+		}
+	}
+
+	// Determine the encoding.
+	buf := parser.raw_buffer
+	pos := parser.raw_buffer_pos
+	avail := len(buf) - pos
+	if avail >= 2 && buf[pos] == bom_UTF16LE[0] && buf[pos+1] == bom_UTF16LE[1] {
+		parser.encoding = yaml_UTF16LE_ENCODING
+		parser.raw_buffer_pos += 2
+		parser.offset += 2
+	} else if avail >= 2 && buf[pos] == bom_UTF16BE[0] && buf[pos+1] == bom_UTF16BE[1] {
+		parser.encoding = yaml_UTF16BE_ENCODING
+		parser.raw_buffer_pos += 2
+		parser.offset += 2
+	} else if avail >= 3 && buf[pos] == bom_UTF8[0] && buf[pos+1] == bom_UTF8[1] && buf[pos+2] == bom_UTF8[2] {
+		parser.encoding = yaml_UTF8_ENCODING
+		parser.raw_buffer_pos += 3
+		parser.offset += 3
+	} else {
+		parser.encoding = yaml_UTF8_ENCODING
+	}
+	return true
+}
+
+// Update the raw buffer.
+func yaml_parser_update_raw_buffer(parser *yaml_parser_t) bool {
+	size_read := 0
+
+	// Return if the raw buffer is full.
+	if parser.raw_buffer_pos == 0 && len(parser.raw_buffer) == cap(parser.raw_buffer) {
+		return true
+	}
+
+	// Return on EOF.
+	if parser.eof {
+		return true
+	}
+
+	// Move the remaining bytes in the raw buffer to the beginning.
+	if parser.raw_buffer_pos > 0 && parser.raw_buffer_pos < len(parser.raw_buffer) {
+		copy(parser.raw_buffer, parser.raw_buffer[parser.raw_buffer_pos:])
+	}
+	parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)-parser.raw_buffer_pos]
+	parser.raw_buffer_pos = 0
+
+	// Call the read handler to fill the buffer.
+	size_read, err := parser.read_handler(parser, parser.raw_buffer[len(parser.raw_buffer):cap(parser.raw_buffer)])
+	parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)+size_read]
+	if err == io.EOF {
+		parser.eof = true
+	} else if err != nil {
+		return yaml_parser_set_reader_error(parser, "input error: "+err.Error(), parser.offset, -1)
+	}
+	return true
+}
+
+// Ensure that the buffer contains at least `length` characters.
+// Return true on success, false on failure.
+//
+// The length is supposed to be significantly less that the buffer size.
+func yaml_parser_update_buffer(parser *yaml_parser_t, length int) bool {
+	if parser.read_handler == nil {
+		panic("read handler must be set")
+	}
+
+	// [Go] This function was changed to guarantee the requested length size at EOF.
+	// The fact we need to do this is pretty awful, but the description above implies
+	// for that to be the case, and there are tests 
+
+	// If the EOF flag is set and the raw buffer is empty, do nothing.
+	if parser.eof && parser.raw_buffer_pos == len(parser.raw_buffer) {
+		// [Go] ACTUALLY! Read the documentation of this function above.
+		// This is just broken. To return true, we need to have the
+		// given length in the buffer. Not doing that means every single
+		// check that calls this function to make sure the buffer has a
+		// given length is Go) panicking; or C) accessing invalid memory.
+		//return true
+	}
+
+	// Return if the buffer contains enough characters.
+	if parser.unread >= length {
+		return true
+	}
+
+	// Determine the input encoding if it is not known yet.
+	if parser.encoding == yaml_ANY_ENCODING {
+		if !yaml_parser_determine_encoding(parser) {
+			return false
+		}
+	}
+
+	// Move the unread characters to the beginning of the buffer.
+	buffer_len := len(parser.buffer)
+	if parser.buffer_pos > 0 && parser.buffer_pos < buffer_len {
+		copy(parser.buffer, parser.buffer[parser.buffer_pos:])
+		buffer_len -= parser.buffer_pos
+		parser.buffer_pos = 0
+	} else if parser.buffer_pos == buffer_len {
+		buffer_len = 0
+		parser.buffer_pos = 0
+	}
+
+	// Open the whole buffer for writing, and cut it before returning.
+	parser.buffer = parser.buffer[:cap(parser.buffer)]
+
+	// Fill the buffer until it has enough characters.
+	first := true
+	for parser.unread < length {
+
+		// Fill the raw buffer if necessary.
+		if !first || parser.raw_buffer_pos == len(parser.raw_buffer) {
+			if !yaml_parser_update_raw_buffer(parser) {
+				parser.buffer = parser.buffer[:buffer_len]
+				return false
+			}
+		}
+		first = false
+
+		// Decode the raw buffer.
+	inner:
+		for parser.raw_buffer_pos != len(parser.raw_buffer) {
+			var value rune
+			var width int
+
+			raw_unread := len(parser.raw_buffer) - parser.raw_buffer_pos
+
+			// Decode the next character.
+			switch parser.encoding {
+			case yaml_UTF8_ENCODING:
+				// Decode a UTF-8 character.  Check RFC 3629
+				// (http://www.ietf.org/rfc/rfc3629.txt) for more details.
+				//
+				// The following table (taken from the RFC) is used for
+				// decoding.
+				//
+				//    Char. number range |        UTF-8 octet sequence
+				//      (hexadecimal)    |              (binary)
+				//   --------------------+------------------------------------
+				//   0000 0000-0000 007F | 0xxxxxxx
+				//   0000 0080-0000 07FF | 110xxxxx 10xxxxxx
+				//   0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx
+				//   0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+				//
+				// Additionally, the characters in the range 0xD800-0xDFFF
+				// are prohibited as they are reserved for use with UTF-16
+				// surrogate pairs.
+
+				// Determine the length of the UTF-8 sequence.
+				octet := parser.raw_buffer[parser.raw_buffer_pos]
+				switch {
+				case octet&0x80 == 0x00:
+					width = 1
+				case octet&0xE0 == 0xC0:
+					width = 2
+				case octet&0xF0 == 0xE0:
+					width = 3
+				case octet&0xF8 == 0xF0:
+					width = 4
+				default:
+					// The leading octet is invalid.
+					return yaml_parser_set_reader_error(parser,
+						"invalid leading UTF-8 octet",
+						parser.offset, int(octet))
+				}
+
+				// Check if the raw buffer contains an incomplete character.
+				if width > raw_unread {
+					if parser.eof {
+						return yaml_parser_set_reader_error(parser,
+							"incomplete UTF-8 octet sequence",
+							parser.offset, -1)
+					}
+					break inner
+				}
+
+				// Decode the leading octet.
+				switch {
+				case octet&0x80 == 0x00:
+					value = rune(octet & 0x7F)
+				case octet&0xE0 == 0xC0:
+					value = rune(octet & 0x1F)
+				case octet&0xF0 == 0xE0:
+					value = rune(octet & 0x0F)
+				case octet&0xF8 == 0xF0:
+					value = rune(octet & 0x07)
+				default:
+					value = 0
+				}
+
+				// Check and decode the trailing octets.
+				for k := 1; k < width; k++ {
+					octet = parser.raw_buffer[parser.raw_buffer_pos+k]
+
+					// Check if the octet is valid.
+					if (octet & 0xC0) != 0x80 {
+						return yaml_parser_set_reader_error(parser,
+							"invalid trailing UTF-8 octet",
+							parser.offset+k, int(octet))
+					}
+
+					// Decode the octet.
+					value = (value << 6) + rune(octet&0x3F)
+				}
+
+				// Check the length of the sequence against the value.
+				switch {
+				case width == 1:
+				case width == 2 && value >= 0x80:
+				case width == 3 && value >= 0x800:
+				case width == 4 && value >= 0x10000:
+				default:
+					return yaml_parser_set_reader_error(parser,
+						"invalid length of a UTF-8 sequence",
+						parser.offset, -1)
+				}
+
+				// Check the range of the value.
+				if value >= 0xD800 && value <= 0xDFFF || value > 0x10FFFF {
+					return yaml_parser_set_reader_error(parser,
+						"invalid Unicode character",
+						parser.offset, int(value))
+				}
+
+			case yaml_UTF16LE_ENCODING, yaml_UTF16BE_ENCODING:
+				var low, high int
+				if parser.encoding == yaml_UTF16LE_ENCODING {
+					low, high = 0, 1
+				} else {
+					low, high = 1, 0
+				}
+
+				// The UTF-16 encoding is not as simple as one might
+				// naively think.  Check RFC 2781
+				// (http://www.ietf.org/rfc/rfc2781.txt).
+				//
+				// Normally, two subsequent bytes describe a Unicode
+				// character.  However a special technique (called a
+				// surrogate pair) is used for specifying character
+				// values larger than 0xFFFF.
+				//
+				// A surrogate pair consists of two pseudo-characters:
+				//      high surrogate area (0xD800-0xDBFF)
+				//      low surrogate area (0xDC00-0xDFFF)
+				//
+				// The following formulas are used for decoding
+				// and encoding characters using surrogate pairs:
+				//
+				//  U  = U' + 0x10000   (0x01 00 00 <= U <= 0x10 FF FF)
+				//  U' = yyyyyyyyyyxxxxxxxxxx   (0 <= U' <= 0x0F FF FF)
+				//  W1 = 110110yyyyyyyyyy
+				//  W2 = 110111xxxxxxxxxx
+				//
+				// where U is the character value, W1 is the high surrogate
+				// area, W2 is the low surrogate area.
+
+				// Check for incomplete UTF-16 character.
+				if raw_unread < 2 {
+					if parser.eof {
+						return yaml_parser_set_reader_error(parser,
+							"incomplete UTF-16 character",
+							parser.offset, -1)
+					}
+					break inner
+				}
+
+				// Get the character.
+				value = rune(parser.raw_buffer[parser.raw_buffer_pos+low]) +
+					(rune(parser.raw_buffer[parser.raw_buffer_pos+high]) << 8)
+
+				// Check for unexpected low surrogate area.
+				if value&0xFC00 == 0xDC00 {
+					return yaml_parser_set_reader_error(parser,
+						"unexpected low surrogate area",
+						parser.offset, int(value))
+				}
+
+				// Check for a high surrogate area.
+				if value&0xFC00 == 0xD800 {
+					width = 4
+
+					// Check for incomplete surrogate pair.
+					if raw_unread < 4 {
+						if parser.eof {
+							return yaml_parser_set_reader_error(parser,
+								"incomplete UTF-16 surrogate pair",
+								parser.offset, -1)
+						}
+						break inner
+					}
+
+					// Get the next character.
+					value2 := rune(parser.raw_buffer[parser.raw_buffer_pos+low+2]) +
+						(rune(parser.raw_buffer[parser.raw_buffer_pos+high+2]) << 8)
+
+					// Check for a low surrogate area.
+					if value2&0xFC00 != 0xDC00 {
+						return yaml_parser_set_reader_error(parser,
+							"expected low surrogate area",
+							parser.offset+2, int(value2))
+					}
+
+					// Generate the value of the surrogate pair.
+					value = 0x10000 + ((value & 0x3FF) << 10) + (value2 & 0x3FF)
+				} else {
+					width = 2
+				}
+
+			default:
+				panic("impossible")
+			}
+
+			// Check if the character is in the allowed range:
+			//      #x9 | #xA | #xD | [#x20-#x7E]               (8 bit)
+			//      | #x85 | [#xA0-#xD7FF] | [#xE000-#xFFFD]    (16 bit)
+			//      | [#x10000-#x10FFFF]                        (32 bit)
+			switch {
+			case value == 0x09:
+			case value == 0x0A:
+			case value == 0x0D:
+			case value >= 0x20 && value <= 0x7E:
+			case value == 0x85:
+			case value >= 0xA0 && value <= 0xD7FF:
+			case value >= 0xE000 && value <= 0xFFFD:
+			case value >= 0x10000 && value <= 0x10FFFF:
+			default:
+				return yaml_parser_set_reader_error(parser,
+					"control characters are not allowed",
+					parser.offset, int(value))
+			}
+
+			// Move the raw pointers.
+			parser.raw_buffer_pos += width
+			parser.offset += width
+
+			// Finally put the character into the buffer.
+			if value <= 0x7F {
+				// 0000 0000-0000 007F . 0xxxxxxx
+				parser.buffer[buffer_len+0] = byte(value)
+				buffer_len += 1
+			} else if value <= 0x7FF {
+				// 0000 0080-0000 07FF . 110xxxxx 10xxxxxx
+				parser.buffer[buffer_len+0] = byte(0xC0 + (value >> 6))
+				parser.buffer[buffer_len+1] = byte(0x80 + (value & 0x3F))
+				buffer_len += 2
+			} else if value <= 0xFFFF {
+				// 0000 0800-0000 FFFF . 1110xxxx 10xxxxxx 10xxxxxx
+				parser.buffer[buffer_len+0] = byte(0xE0 + (value >> 12))
+				parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 6) & 0x3F))
+				parser.buffer[buffer_len+2] = byte(0x80 + (value & 0x3F))
+				buffer_len += 3
+			} else {
+				// 0001 0000-0010 FFFF . 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+				parser.buffer[buffer_len+0] = byte(0xF0 + (value >> 18))
+				parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 12) & 0x3F))
+				parser.buffer[buffer_len+2] = byte(0x80 + ((value >> 6) & 0x3F))
+				parser.buffer[buffer_len+3] = byte(0x80 + (value & 0x3F))
+				buffer_len += 4
+			}
+
+			parser.unread++
+		}
+
+		// On EOF, put NUL into the buffer and return.
+		if parser.eof {
+			parser.buffer[buffer_len] = 0
+			buffer_len++
+			parser.unread++
+			break
+		}
+	}
+	// [Go] Read the documentation of this function above. To return true,
+	// we need to have the given length in the buffer. Not doing that means
+	// every single check that calls this function to make sure the buffer
+	// has a given length is Go) panicking; or C) accessing invalid memory.
+	// This happens here due to the EOF above breaking early.
+	for buffer_len < length {
+		parser.buffer[buffer_len] = 0
+		buffer_len++
+	}
+	parser.buffer = parser.buffer[:buffer_len]
+	return true
+}
--- a/vendor/go.yaml.in/yaml/v2/resolve.go
+++ b/vendor/go.yaml.in/yaml/v2/resolve.go
@@ -0,0 +1,258 @@
+package yaml
+
+import (
+	"encoding/base64"
+	"math"
+	"regexp"
+	"strconv"
+	"strings"
+	"time"
+)
+
+type resolveMapItem struct {
+	value interface{}
+	tag   string
+}
+
+var resolveTable = make([]byte, 256)
+var resolveMap = make(map[string]resolveMapItem)
+
+func init() {
+	t := resolveTable
+	t[int('+')] = 'S' // Sign
+	t[int('-')] = 'S'
+	for _, c := range "0123456789" {
+		t[int(c)] = 'D' // Digit
+	}
+	for _, c := range "yYnNtTfFoO~" {
+		t[int(c)] = 'M' // In map
+	}
+	t[int('.')] = '.' // Float (potentially in map)
+
+	var resolveMapList = []struct {
+		v   interface{}
+		tag string
+		l   []string
+	}{
+		{true, yaml_BOOL_TAG, []string{"y", "Y", "yes", "Yes", "YES"}},
+		{true, yaml_BOOL_TAG, []string{"true", "True", "TRUE"}},
+		{true, yaml_BOOL_TAG, []string{"on", "On", "ON"}},
+		{false, yaml_BOOL_TAG, []string{"n", "N", "no", "No", "NO"}},
+		{false, yaml_BOOL_TAG, []string{"false", "False", "FALSE"}},
+		{false, yaml_BOOL_TAG, []string{"off", "Off", "OFF"}},
+		{nil, yaml_NULL_TAG, []string{"", "~", "null", "Null", "NULL"}},
+		{math.NaN(), yaml_FLOAT_TAG, []string{".nan", ".NaN", ".NAN"}},
+		{math.Inf(+1), yaml_FLOAT_TAG, []string{".inf", ".Inf", ".INF"}},
+		{math.Inf(+1), yaml_FLOAT_TAG, []string{"+.inf", "+.Inf", "+.INF"}},
+		{math.Inf(-1), yaml_FLOAT_TAG, []string{"-.inf", "-.Inf", "-.INF"}},
+		{"<<", yaml_MERGE_TAG, []string{"<<"}},
+	}
+
+	m := resolveMap
+	for _, item := range resolveMapList {
+		for _, s := range item.l {
+			m[s] = resolveMapItem{item.v, item.tag}
+		}
+	}
+}
+
+const longTagPrefix = "tag:yaml.org,2002:"
+
+func shortTag(tag string) string {
+	// TODO This can easily be made faster and produce less garbage.
+	if strings.HasPrefix(tag, longTagPrefix) {
+		return "!!" + tag[len(longTagPrefix):]
+	}
+	return tag
+}
+
+func longTag(tag string) string {
+	if strings.HasPrefix(tag, "!!") {
+		return longTagPrefix + tag[2:]
+	}
+	return tag
+}
+
+func resolvableTag(tag string) bool {
+	switch tag {
+	case "", yaml_STR_TAG, yaml_BOOL_TAG, yaml_INT_TAG, yaml_FLOAT_TAG, yaml_NULL_TAG, yaml_TIMESTAMP_TAG:
+		return true
+	}
+	return false
+}
+
+var yamlStyleFloat = regexp.MustCompile(`^[-+]?(\.[0-9]+|[0-9]+(\.[0-9]*)?)([eE][-+]?[0-9]+)?$`)
+
+func resolve(tag string, in string) (rtag string, out interface{}) {
+	if !resolvableTag(tag) {
+		return tag, in
+	}
+
+	defer func() {
+		switch tag {
+		case "", rtag, yaml_STR_TAG, yaml_BINARY_TAG:
+			return
+		case yaml_FLOAT_TAG:
+			if rtag == yaml_INT_TAG {
+				switch v := out.(type) {
+				case int64:
+					rtag = yaml_FLOAT_TAG
+					out = float64(v)
+					return
+				case int:
+					rtag = yaml_FLOAT_TAG
+					out = float64(v)
+					return
+				}
+			}
+		}
+		failf("cannot decode %s `%s` as a %s", shortTag(rtag), in, shortTag(tag))
+	}()
+
+	// Any data is accepted as a !!str or !!binary.
+	// Otherwise, the prefix is enough of a hint about what it might be.
+	hint := byte('N')
+	if in != "" {
+		hint = resolveTable[in[0]]
+	}
+	if hint != 0 && tag != yaml_STR_TAG && tag != yaml_BINARY_TAG {
+		// Handle things we can lookup in a map.
+		if item, ok := resolveMap[in]; ok {
+			return item.tag, item.value
+		}
+
+		// Base 60 floats are a bad idea, were dropped in YAML 1.2, and
+		// are purposefully unsupported here. They're still quoted on
+		// the way out for compatibility with other parser, though.
+
+		switch hint {
+		case 'M':
+			// We've already checked the map above.
+
+		case '.':
+			// Not in the map, so maybe a normal float.
+			floatv, err := strconv.ParseFloat(in, 64)
+			if err == nil {
+				return yaml_FLOAT_TAG, floatv
+			}
+
+		case 'D', 'S':
+			// Int, float, or timestamp.
+			// Only try values as a timestamp if the value is unquoted or there's an explicit
+			// !!timestamp tag.
+			if tag == "" || tag == yaml_TIMESTAMP_TAG {
+				t, ok := parseTimestamp(in)
+				if ok {
+					return yaml_TIMESTAMP_TAG, t
+				}
+			}
+
+			plain := strings.Replace(in, "_", "", -1)
+			intv, err := strconv.ParseInt(plain, 0, 64)
+			if err == nil {
+				if intv == int64(int(intv)) {
+					return yaml_INT_TAG, int(intv)
+				} else {
+					return yaml_INT_TAG, intv
+				}
+			}
+			uintv, err := strconv.ParseUint(plain, 0, 64)
+			if err == nil {
+				return yaml_INT_TAG, uintv
+			}
+			if yamlStyleFloat.MatchString(plain) {
+				floatv, err := strconv.ParseFloat(plain, 64)
+				if err == nil {
+					return yaml_FLOAT_TAG, floatv
+				}
+			}
+			if strings.HasPrefix(plain, "0b") {
+				intv, err := strconv.ParseInt(plain[2:], 2, 64)
+				if err == nil {
+					if intv == int64(int(intv)) {
+						return yaml_INT_TAG, int(intv)
+					} else {
+						return yaml_INT_TAG, intv
+					}
+				}
+				uintv, err := strconv.ParseUint(plain[2:], 2, 64)
+				if err == nil {
+					return yaml_INT_TAG, uintv
+				}
+			} else if strings.HasPrefix(plain, "-0b") {
+				intv, err := strconv.ParseInt("-" + plain[3:], 2, 64)
+				if err == nil {
+					if true || intv == int64(int(intv)) {
+						return yaml_INT_TAG, int(intv)
+					} else {
+						return yaml_INT_TAG, intv
+					}
+				}
+			}
+		default:
+			panic("resolveTable item not yet handled: " + string(rune(hint)) + " (with " + in + ")")
+		}
+	}
+	return yaml_STR_TAG, in
+}
+
+// encodeBase64 encodes s as base64 that is broken up into multiple lines
+// as appropriate for the resulting length.
+func encodeBase64(s string) string {
+	const lineLen = 70
+	encLen := base64.StdEncoding.EncodedLen(len(s))
+	lines := encLen/lineLen + 1
+	buf := make([]byte, encLen*2+lines)
+	in := buf[0:encLen]
+	out := buf[encLen:]
+	base64.StdEncoding.Encode(in, []byte(s))
+	k := 0
+	for i := 0; i < len(in); i += lineLen {
+		j := i + lineLen
+		if j > len(in) {
+			j = len(in)
+		}
+		k += copy(out[k:], in[i:j])
+		if lines > 1 {
+			out[k] = '\n'
+			k++
+		}
+	}
+	return string(out[:k])
+}
+
+// This is a subset of the formats allowed by the regular expression
+// defined at http://yaml.org/type/timestamp.html.
+var allowedTimestampFormats = []string{
+	"2006-1-2T15:4:5.999999999Z07:00", // RCF3339Nano with short date fields.
+	"2006-1-2t15:4:5.999999999Z07:00", // RFC3339Nano with short date fields and lower-case "t".
+	"2006-1-2 15:4:5.999999999",       // space separated with no time zone
+	"2006-1-2",                        // date only
+	// Notable exception: time.Parse cannot handle: "2001-12-14 21:59:43.10 -5"
+	// from the set of examples.
+}
+
+// parseTimestamp parses s as a timestamp string and
+// returns the timestamp and reports whether it succeeded.
+// Timestamp formats are defined at http://yaml.org/type/timestamp.html
+func parseTimestamp(s string) (time.Time, bool) {
+	// TODO write code to check all the formats supported by
+	// http://yaml.org/type/timestamp.html instead of using time.Parse.
+
+	// Quick check: all date formats start with YYYY-.
+	i := 0
+	for ; i < len(s); i++ {
+		if c := s[i]; c < '0' || c > '9' {
+			break
+		}
+	}
+	if i != 4 || i == len(s) || s[i] != '-' {
+		return time.Time{}, false
+	}
+	for _, format := range allowedTimestampFormats {
+		if t, err := time.Parse(format, s); err == nil {
+			return t, true
+		}
+	}
+	return time.Time{}, false
+}
--- a/vendor/go.yaml.in/yaml/v2/scannerc.go
+++ b/vendor/go.yaml.in/yaml/v2/scannerc.go
--- a/vendor/go.yaml.in/yaml/v2/sorter.go
+++ b/vendor/go.yaml.in/yaml/v2/sorter.go
@@ -0,0 +1,113 @@
+package yaml
+
+import (
+	"reflect"
+	"unicode"
+)
+
+type keyList []reflect.Value
+
+func (l keyList) Len() int      { return len(l) }
+func (l keyList) Swap(i, j int) { l[i], l[j] = l[j], l[i] }
+func (l keyList) Less(i, j int) bool {
+	a := l[i]
+	b := l[j]
+	ak := a.Kind()
+	bk := b.Kind()
+	for (ak == reflect.Interface || ak == reflect.Ptr) && !a.IsNil() {
+		a = a.Elem()
+		ak = a.Kind()
+	}
+	for (bk == reflect.Interface || bk == reflect.Ptr) && !b.IsNil() {
+		b = b.Elem()
+		bk = b.Kind()
+	}
+	af, aok := keyFloat(a)
+	bf, bok := keyFloat(b)
+	if aok && bok {
+		if af != bf {
+			return af < bf
+		}
+		if ak != bk {
+			return ak < bk
+		}
+		return numLess(a, b)
+	}
+	if ak != reflect.String || bk != reflect.String {
+		return ak < bk
+	}
+	ar, br := []rune(a.String()), []rune(b.String())
+	for i := 0; i < len(ar) && i < len(br); i++ {
+		if ar[i] == br[i] {
+			continue
+		}
+		al := unicode.IsLetter(ar[i])
+		bl := unicode.IsLetter(br[i])
+		if al && bl {
+			return ar[i] < br[i]
+		}
+		if al || bl {
+			return bl
+		}
+		var ai, bi int
+		var an, bn int64
+		if ar[i] == '0' || br[i] == '0' {
+			for j := i-1; j >= 0 && unicode.IsDigit(ar[j]); j-- {
+				if ar[j] != '0' {
+					an = 1
+					bn = 1
+					break
+				}
+			}
+		}
+		for ai = i; ai < len(ar) && unicode.IsDigit(ar[ai]); ai++ {
+			an = an*10 + int64(ar[ai]-'0')
+		}
+		for bi = i; bi < len(br) && unicode.IsDigit(br[bi]); bi++ {
+			bn = bn*10 + int64(br[bi]-'0')
+		}
+		if an != bn {
+			return an < bn
+		}
+		if ai != bi {
+			return ai < bi
+		}
+		return ar[i] < br[i]
+	}
+	return len(ar) < len(br)
+}
+
+// keyFloat returns a float value for v if it is a number/bool
+// and whether it is a number/bool or not.
+func keyFloat(v reflect.Value) (f float64, ok bool) {
+	switch v.Kind() {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return float64(v.Int()), true
+	case reflect.Float32, reflect.Float64:
+		return v.Float(), true
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return float64(v.Uint()), true
+	case reflect.Bool:
+		if v.Bool() {
+			return 1, true
+		}
+		return 0, true
+	}
+	return 0, false
+}
+
+// numLess returns whether a < b.
+// a and b must necessarily have the same kind.
+func numLess(a, b reflect.Value) bool {
+	switch a.Kind() {
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return a.Int() < b.Int()
+	case reflect.Float32, reflect.Float64:
+		return a.Float() < b.Float()
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return a.Uint() < b.Uint()
+	case reflect.Bool:
+		return !a.Bool() && b.Bool()
+	}
+	panic("not a number")
+}
--- a/vendor/go.yaml.in/yaml/v2/writerc.go
+++ b/vendor/go.yaml.in/yaml/v2/writerc.go
@@ -0,0 +1,26 @@
+package yaml
+
+// Set the writer error and return false.
+func yaml_emitter_set_writer_error(emitter *yaml_emitter_t, problem string) bool {
+	emitter.error = yaml_WRITER_ERROR
+	emitter.problem = problem
+	return false
+}
+
+// Flush the output buffer.
+func yaml_emitter_flush(emitter *yaml_emitter_t) bool {
+	if emitter.write_handler == nil {
+		panic("write handler not set")
+	}
+
+	// Check if the buffer is empty.
+	if emitter.buffer_pos == 0 {
+		return true
+	}
+
+	if err := emitter.write_handler(emitter, emitter.buffer[:emitter.buffer_pos]); err != nil {
+		return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error())
+	}
+	emitter.buffer_pos = 0
+	return true
+}
--- a/vendor/go.yaml.in/yaml/v2/yaml.go
+++ b/vendor/go.yaml.in/yaml/v2/yaml.go
@@ -0,0 +1,478 @@
+// Package yaml implements YAML support for the Go language.
+//
+// Source code and other details for the project are available at GitHub:
+//
+//   https://github.com/yaml/go-yaml
+//
+package yaml
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"reflect"
+	"strings"
+	"sync"
+)
+
+// MapSlice encodes and decodes as a YAML map.
+// The order of keys is preserved when encoding and decoding.
+type MapSlice []MapItem
+
+// MapItem is an item in a MapSlice.
+type MapItem struct {
+	Key, Value interface{}
+}
+
+// The Unmarshaler interface may be implemented by types to customize their
+// behavior when being unmarshaled from a YAML document. The UnmarshalYAML
+// method receives a function that may be called to unmarshal the original
+// YAML value into a field or variable. It is safe to call the unmarshal
+// function parameter more than once if necessary.
+type Unmarshaler interface {
+	UnmarshalYAML(unmarshal func(interface{}) error) error
+}
+
+// The Marshaler interface may be implemented by types to customize their
+// behavior when being marshaled into a YAML document. The returned value
+// is marshaled in place of the original value implementing Marshaler.
+//
+// If an error is returned by MarshalYAML, the marshaling procedure stops
+// and returns with the provided error.
+type Marshaler interface {
+	MarshalYAML() (interface{}, error)
+}
+
+// Unmarshal decodes the first document found within the in byte slice
+// and assigns decoded values into the out value.
+//
+// Maps and pointers (to a struct, string, int, etc) are accepted as out
+// values. If an internal pointer within a struct is not initialized,
+// the yaml package will initialize it if necessary for unmarshalling
+// the provided data. The out parameter must not be nil.
+//
+// The type of the decoded values should be compatible with the respective
+// values in out. If one or more values cannot be decoded due to a type
+// mismatches, decoding continues partially until the end of the YAML
+// content, and a *yaml.TypeError is returned with details for all
+// missed values.
+//
+// Struct fields are only unmarshalled if they are exported (have an
+// upper case first letter), and are unmarshalled using the field name
+// lowercased as the default key. Custom keys may be defined via the
+// "yaml" name in the field tag: the content preceding the first comma
+// is used as the key, and the following comma-separated options are
+// used to tweak the marshalling process (see Marshal).
+// Conflicting names result in a runtime error.
+//
+// For example:
+//
+//     type T struct {
+//         F int `yaml:"a,omitempty"`
+//         B int
+//     }
+//     var t T
+//     yaml.Unmarshal([]byte("a: 1\nb: 2"), &t)
+//
+// See the documentation of Marshal for the format of tags and a list of
+// supported tag options.
+//
+func Unmarshal(in []byte, out interface{}) (err error) {
+	return unmarshal(in, out, false)
+}
+
+// UnmarshalStrict is like Unmarshal except that any fields that are found
+// in the data that do not have corresponding struct members, or mapping
+// keys that are duplicates, will result in
+// an error.
+func UnmarshalStrict(in []byte, out interface{}) (err error) {
+	return unmarshal(in, out, true)
+}
+
+// A Decoder reads and decodes YAML values from an input stream.
+type Decoder struct {
+	strict bool
+	parser *parser
+}
+
+// NewDecoder returns a new decoder that reads from r.
+//
+// The decoder introduces its own buffering and may read
+// data from r beyond the YAML values requested.
+func NewDecoder(r io.Reader) *Decoder {
+	return &Decoder{
+		parser: newParserFromReader(r),
+	}
+}
+
+// SetStrict sets whether strict decoding behaviour is enabled when
+// decoding items in the data (see UnmarshalStrict). By default, decoding is not strict.
+func (dec *Decoder) SetStrict(strict bool) {
+	dec.strict = strict
+}
+
+// Decode reads the next YAML-encoded value from its input
+// and stores it in the value pointed to by v.
+//
+// See the documentation for Unmarshal for details about the
+// conversion of YAML into a Go value.
+func (dec *Decoder) Decode(v interface{}) (err error) {
+	d := newDecoder(dec.strict)
+	defer handleErr(&err)
+	node := dec.parser.parse()
+	if node == nil {
+		return io.EOF
+	}
+	out := reflect.ValueOf(v)
+	if out.Kind() == reflect.Ptr && !out.IsNil() {
+		out = out.Elem()
+	}
+	d.unmarshal(node, out)
+	if len(d.terrors) > 0 {
+		return &TypeError{d.terrors}
+	}
+	return nil
+}
+
+func unmarshal(in []byte, out interface{}, strict bool) (err error) {
+	defer handleErr(&err)
+	d := newDecoder(strict)
+	p := newParser(in)
+	defer p.destroy()
+	node := p.parse()
+	if node != nil {
+		v := reflect.ValueOf(out)
+		if v.Kind() == reflect.Ptr && !v.IsNil() {
+			v = v.Elem()
+		}
+		d.unmarshal(node, v)
+	}
+	if len(d.terrors) > 0 {
+		return &TypeError{d.terrors}
+	}
+	return nil
+}
+
+// Marshal serializes the value provided into a YAML document. The structure
+// of the generated document will reflect the structure of the value itself.
+// Maps and pointers (to struct, string, int, etc) are accepted as the in value.
+//
+// Struct fields are only marshalled if they are exported (have an upper case
+// first letter), and are marshalled using the field name lowercased as the
+// default key. Custom keys may be defined via the "yaml" name in the field
+// tag: the content preceding the first comma is used as the key, and the
+// following comma-separated options are used to tweak the marshalling process.
+// Conflicting names result in a runtime error.
+//
+// The field tag format accepted is:
+//
+//     `(...) yaml:"[<key>][,<flag1>[,<flag2>]]" (...)`
+//
+// The following flags are currently supported:
+//
+//     omitempty    Only include the field if it's not set to the zero
+//                  value for the type or to empty slices or maps.
+//                  Zero valued structs will be omitted if all their public
+//                  fields are zero, unless they implement an IsZero
+//                  method (see the IsZeroer interface type), in which
+//                  case the field will be excluded if IsZero returns true.
+//
+//     flow         Marshal using a flow style (useful for structs,
+//                  sequences and maps).
+//
+//     inline       Inline the field, which must be a struct or a map,
+//                  causing all of its fields or keys to be processed as if
+//                  they were part of the outer struct. For maps, keys must
+//                  not conflict with the yaml keys of other struct fields.
+//
+// In addition, if the key is "-", the field is ignored.
+//
+// For example:
+//
+//     type T struct {
+//         F int `yaml:"a,omitempty"`
+//         B int
+//     }
+//     yaml.Marshal(&T{B: 2}) // Returns "b: 2\n"
+//     yaml.Marshal(&T{F: 1}} // Returns "a: 1\nb: 0\n"
+//
+func Marshal(in interface{}) (out []byte, err error) {
+	defer handleErr(&err)
+	e := newEncoder()
+	defer e.destroy()
+	e.marshalDoc("", reflect.ValueOf(in))
+	e.finish()
+	out = e.out
+	return
+}
+
+// An Encoder writes YAML values to an output stream.
+type Encoder struct {
+	encoder *encoder
+}
+
+// NewEncoder returns a new encoder that writes to w.
+// The Encoder should be closed after use to flush all data
+// to w.
+func NewEncoder(w io.Writer) *Encoder {
+	return &Encoder{
+		encoder: newEncoderWithWriter(w),
+	}
+}
+
+// Encode writes the YAML encoding of v to the stream.
+// If multiple items are encoded to the stream, the
+// second and subsequent document will be preceded
+// with a "---" document separator, but the first will not.
+//
+// See the documentation for Marshal for details about the conversion of Go
+// values to YAML.
+func (e *Encoder) Encode(v interface{}) (err error) {
+	defer handleErr(&err)
+	e.encoder.marshalDoc("", reflect.ValueOf(v))
+	return nil
+}
+
+// Close closes the encoder by writing any remaining data.
+// It does not write a stream terminating string "...".
+func (e *Encoder) Close() (err error) {
+	defer handleErr(&err)
+	e.encoder.finish()
+	return nil
+}
+
+func handleErr(err *error) {
+	if v := recover(); v != nil {
+		if e, ok := v.(yamlError); ok {
+			*err = e.err
+		} else {
+			panic(v)
+		}
+	}
+}
+
+type yamlError struct {
+	err error
+}
+
+func fail(err error) {
+	panic(yamlError{err})
+}
+
+func failf(format string, args ...interface{}) {
+	panic(yamlError{fmt.Errorf("yaml: "+format, args...)})
+}
+
+// A TypeError is returned by Unmarshal when one or more fields in
+// the YAML document cannot be properly decoded into the requested
+// types. When this error is returned, the value is still
+// unmarshaled partially.
+type TypeError struct {
+	Errors []string
+}
+
+func (e *TypeError) Error() string {
+	return fmt.Sprintf("yaml: unmarshal errors:\n  %s", strings.Join(e.Errors, "\n  "))
+}
+
+// --------------------------------------------------------------------------
+// Maintain a mapping of keys to structure field indexes
+
+// The code in this section was copied from mgo/bson.
+
+// structInfo holds details for the serialization of fields of
+// a given struct.
+type structInfo struct {
+	FieldsMap  map[string]fieldInfo
+	FieldsList []fieldInfo
+
+	// InlineMap is the number of the field in the struct that
+	// contains an ,inline map, or -1 if there's none.
+	InlineMap int
+}
+
+type fieldInfo struct {
+	Key       string
+	Num       int
+	OmitEmpty bool
+	Flow      bool
+	// Id holds the unique field identifier, so we can cheaply
+	// check for field duplicates without maintaining an extra map.
+	Id int
+
+	// Inline holds the field index if the field is part of an inlined struct.
+	Inline []int
+}
+
+var structMap = make(map[reflect.Type]*structInfo)
+var fieldMapMutex sync.RWMutex
+
+func getStructInfo(st reflect.Type) (*structInfo, error) {
+	fieldMapMutex.RLock()
+	sinfo, found := structMap[st]
+	fieldMapMutex.RUnlock()
+	if found {
+		return sinfo, nil
+	}
+
+	n := st.NumField()
+	fieldsMap := make(map[string]fieldInfo)
+	fieldsList := make([]fieldInfo, 0, n)
+	inlineMap := -1
+	for i := 0; i != n; i++ {
+		field := st.Field(i)
+		if field.PkgPath != "" && !field.Anonymous {
+			continue // Private field
+		}
+
+		info := fieldInfo{Num: i}
+
+		tag := field.Tag.Get("yaml")
+		if tag == "" && strings.Index(string(field.Tag), ":") < 0 {
+			tag = string(field.Tag)
+		}
+		if tag == "-" {
+			continue
+		}
+
+		inline := false
+		fields := strings.Split(tag, ",")
+		if len(fields) > 1 {
+			for _, flag := range fields[1:] {
+				switch flag {
+				case "omitempty":
+					info.OmitEmpty = true
+				case "flow":
+					info.Flow = true
+				case "inline":
+					inline = true
+				default:
+					return nil, errors.New(fmt.Sprintf("Unsupported flag %q in tag %q of type %s", flag, tag, st))
+				}
+			}
+			tag = fields[0]
+		}
+
+		if inline {
+			switch field.Type.Kind() {
+			case reflect.Map:
+				if inlineMap >= 0 {
+					return nil, errors.New("Multiple ,inline maps in struct " + st.String())
+				}
+				if field.Type.Key() != reflect.TypeOf("") {
+					return nil, errors.New("Option ,inline needs a map with string keys in struct " + st.String())
+				}
+				inlineMap = info.Num
+			case reflect.Struct:
+				sinfo, err := getStructInfo(field.Type)
+				if err != nil {
+					return nil, err
+				}
+				for _, finfo := range sinfo.FieldsList {
+					if _, found := fieldsMap[finfo.Key]; found {
+						msg := "Duplicated key '" + finfo.Key + "' in struct " + st.String()
+						return nil, errors.New(msg)
+					}
+					if finfo.Inline == nil {
+						finfo.Inline = []int{i, finfo.Num}
+					} else {
+						finfo.Inline = append([]int{i}, finfo.Inline...)
+					}
+					finfo.Id = len(fieldsList)
+					fieldsMap[finfo.Key] = finfo
+					fieldsList = append(fieldsList, finfo)
+				}
+			default:
+				//return nil, errors.New("Option ,inline needs a struct value or map field")
+				return nil, errors.New("Option ,inline needs a struct value field")
+			}
+			continue
+		}
+
+		if tag != "" {
+			info.Key = tag
+		} else {
+			info.Key = strings.ToLower(field.Name)
+		}
+
+		if _, found = fieldsMap[info.Key]; found {
+			msg := "Duplicated key '" + info.Key + "' in struct " + st.String()
+			return nil, errors.New(msg)
+		}
+
+		info.Id = len(fieldsList)
+		fieldsList = append(fieldsList, info)
+		fieldsMap[info.Key] = info
+	}
+
+	sinfo = &structInfo{
+		FieldsMap:  fieldsMap,
+		FieldsList: fieldsList,
+		InlineMap:  inlineMap,
+	}
+
+	fieldMapMutex.Lock()
+	structMap[st] = sinfo
+	fieldMapMutex.Unlock()
+	return sinfo, nil
+}
+
+// IsZeroer is used to check whether an object is zero to
+// determine whether it should be omitted when marshaling
+// with the omitempty flag. One notable implementation
+// is time.Time.
+type IsZeroer interface {
+	IsZero() bool
+}
+
+func isZero(v reflect.Value) bool {
+	kind := v.Kind()
+	if z, ok := v.Interface().(IsZeroer); ok {
+		if (kind == reflect.Ptr || kind == reflect.Interface) && v.IsNil() {
+			return true
+		}
+		return z.IsZero()
+	}
+	switch kind {
+	case reflect.String:
+		return len(v.String()) == 0
+	case reflect.Interface, reflect.Ptr:
+		return v.IsNil()
+	case reflect.Slice:
+		return v.Len() == 0
+	case reflect.Map:
+		return v.Len() == 0
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		return v.Int() == 0
+	case reflect.Float32, reflect.Float64:
+		return v.Float() == 0
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+		return v.Uint() == 0
+	case reflect.Bool:
+		return !v.Bool()
+	case reflect.Struct:
+		vt := v.Type()
+		for i := v.NumField() - 1; i >= 0; i-- {
+			if vt.Field(i).PkgPath != "" {
+				continue // Private field
+			}
+			if !isZero(v.Field(i)) {
+				return false
+			}
+		}
+		return true
+	}
+	return false
+}
+
+// FutureLineWrap globally disables line wrapping when encoding long strings.
+// This is a temporary and thus deprecated method introduced to faciliate
+// migration towards v3, which offers more control of line lengths on
+// individual encodings, and has a default matching the behavior introduced
+// by this function.
+//
+// The default formatting of v2 was erroneously changed in v2.3.0 and reverted
+// in v2.4.0, at which point this function was introduced to help migration.
+func FutureLineWrap() {
+	disableLineWrapping = true
+}
--- a/vendor/go.yaml.in/yaml/v2/yamlh.go
+++ b/vendor/go.yaml.in/yaml/v2/yamlh.go
@@ -0,0 +1,739 @@
+package yaml
+
+import (
+	"fmt"
+	"io"
+)
+
+// The version directive data.
+type yaml_version_directive_t struct {
+	major int8 // The major version number.
+	minor int8 // The minor version number.
+}
+
+// The tag directive data.
+type yaml_tag_directive_t struct {
+	handle []byte // The tag handle.
+	prefix []byte // The tag prefix.
+}
+
+type yaml_encoding_t int
+
+// The stream encoding.
+const (
+	// Let the parser choose the encoding.
+	yaml_ANY_ENCODING yaml_encoding_t = iota
+
+	yaml_UTF8_ENCODING    // The default UTF-8 encoding.
+	yaml_UTF16LE_ENCODING // The UTF-16-LE encoding with BOM.
+	yaml_UTF16BE_ENCODING // The UTF-16-BE encoding with BOM.
+)
+
+type yaml_break_t int
+
+// Line break types.
+const (
+	// Let the parser choose the break type.
+	yaml_ANY_BREAK yaml_break_t = iota
+
+	yaml_CR_BREAK   // Use CR for line breaks (Mac style).
+	yaml_LN_BREAK   // Use LN for line breaks (Unix style).
+	yaml_CRLN_BREAK // Use CR LN for line breaks (DOS style).
+)
+
+type yaml_error_type_t int
+
+// Many bad things could happen with the parser and emitter.
+const (
+	// No error is produced.
+	yaml_NO_ERROR yaml_error_type_t = iota
+
+	yaml_MEMORY_ERROR   // Cannot allocate or reallocate a block of memory.
+	yaml_READER_ERROR   // Cannot read or decode the input stream.
+	yaml_SCANNER_ERROR  // Cannot scan the input stream.
+	yaml_PARSER_ERROR   // Cannot parse the input stream.
+	yaml_COMPOSER_ERROR // Cannot compose a YAML document.
+	yaml_WRITER_ERROR   // Cannot write to the output stream.
+	yaml_EMITTER_ERROR  // Cannot emit a YAML stream.
+)
+
+// The pointer position.
+type yaml_mark_t struct {
+	index  int // The position index.
+	line   int // The position line.
+	column int // The position column.
+}
+
+// Node Styles
+
+type yaml_style_t int8
+
+type yaml_scalar_style_t yaml_style_t
+
+// Scalar styles.
+const (
+	// Let the emitter choose the style.
+	yaml_ANY_SCALAR_STYLE yaml_scalar_style_t = iota
+
+	yaml_PLAIN_SCALAR_STYLE         // The plain scalar style.
+	yaml_SINGLE_QUOTED_SCALAR_STYLE // The single-quoted scalar style.
+	yaml_DOUBLE_QUOTED_SCALAR_STYLE // The double-quoted scalar style.
+	yaml_LITERAL_SCALAR_STYLE       // The literal scalar style.
+	yaml_FOLDED_SCALAR_STYLE        // The folded scalar style.
+)
+
+type yaml_sequence_style_t yaml_style_t
+
+// Sequence styles.
+const (
+	// Let the emitter choose the style.
+	yaml_ANY_SEQUENCE_STYLE yaml_sequence_style_t = iota
+
+	yaml_BLOCK_SEQUENCE_STYLE // The block sequence style.
+	yaml_FLOW_SEQUENCE_STYLE  // The flow sequence style.
+)
+
+type yaml_mapping_style_t yaml_style_t
+
+// Mapping styles.
+const (
+	// Let the emitter choose the style.
+	yaml_ANY_MAPPING_STYLE yaml_mapping_style_t = iota
+
+	yaml_BLOCK_MAPPING_STYLE // The block mapping style.
+	yaml_FLOW_MAPPING_STYLE  // The flow mapping style.
+)
+
+// Tokens
+
+type yaml_token_type_t int
+
+// Token types.
+const (
+	// An empty token.
+	yaml_NO_TOKEN yaml_token_type_t = iota
+
+	yaml_STREAM_START_TOKEN // A STREAM-START token.
+	yaml_STREAM_END_TOKEN   // A STREAM-END token.
+
+	yaml_VERSION_DIRECTIVE_TOKEN // A VERSION-DIRECTIVE token.
+	yaml_TAG_DIRECTIVE_TOKEN     // A TAG-DIRECTIVE token.
+	yaml_DOCUMENT_START_TOKEN    // A DOCUMENT-START token.
+	yaml_DOCUMENT_END_TOKEN      // A DOCUMENT-END token.
+
+	yaml_BLOCK_SEQUENCE_START_TOKEN // A BLOCK-SEQUENCE-START token.
+	yaml_BLOCK_MAPPING_START_TOKEN  // A BLOCK-SEQUENCE-END token.
+	yaml_BLOCK_END_TOKEN            // A BLOCK-END token.
+
+	yaml_FLOW_SEQUENCE_START_TOKEN // A FLOW-SEQUENCE-START token.
+	yaml_FLOW_SEQUENCE_END_TOKEN   // A FLOW-SEQUENCE-END token.
+	yaml_FLOW_MAPPING_START_TOKEN  // A FLOW-MAPPING-START token.
+	yaml_FLOW_MAPPING_END_TOKEN    // A FLOW-MAPPING-END token.
+
+	yaml_BLOCK_ENTRY_TOKEN // A BLOCK-ENTRY token.
+	yaml_FLOW_ENTRY_TOKEN  // A FLOW-ENTRY token.
+	yaml_KEY_TOKEN         // A KEY token.
+	yaml_VALUE_TOKEN       // A VALUE token.
+
+	yaml_ALIAS_TOKEN  // An ALIAS token.
+	yaml_ANCHOR_TOKEN // An ANCHOR token.
+	yaml_TAG_TOKEN    // A TAG token.
+	yaml_SCALAR_TOKEN // A SCALAR token.
+)
+
+func (tt yaml_token_type_t) String() string {
+	switch tt {
+	case yaml_NO_TOKEN:
+		return "yaml_NO_TOKEN"
+	case yaml_STREAM_START_TOKEN:
+		return "yaml_STREAM_START_TOKEN"
+	case yaml_STREAM_END_TOKEN:
+		return "yaml_STREAM_END_TOKEN"
+	case yaml_VERSION_DIRECTIVE_TOKEN:
+		return "yaml_VERSION_DIRECTIVE_TOKEN"
+	case yaml_TAG_DIRECTIVE_TOKEN:
+		return "yaml_TAG_DIRECTIVE_TOKEN"
+	case yaml_DOCUMENT_START_TOKEN:
+		return "yaml_DOCUMENT_START_TOKEN"
+	case yaml_DOCUMENT_END_TOKEN:
+		return "yaml_DOCUMENT_END_TOKEN"
+	case yaml_BLOCK_SEQUENCE_START_TOKEN:
+		return "yaml_BLOCK_SEQUENCE_START_TOKEN"
+	case yaml_BLOCK_MAPPING_START_TOKEN:
+		return "yaml_BLOCK_MAPPING_START_TOKEN"
+	case yaml_BLOCK_END_TOKEN:
+		return "yaml_BLOCK_END_TOKEN"
+	case yaml_FLOW_SEQUENCE_START_TOKEN:
+		return "yaml_FLOW_SEQUENCE_START_TOKEN"
+	case yaml_FLOW_SEQUENCE_END_TOKEN:
+		return "yaml_FLOW_SEQUENCE_END_TOKEN"
+	case yaml_FLOW_MAPPING_START_TOKEN:
+		return "yaml_FLOW_MAPPING_START_TOKEN"
+	case yaml_FLOW_MAPPING_END_TOKEN:
+		return "yaml_FLOW_MAPPING_END_TOKEN"
+	case yaml_BLOCK_ENTRY_TOKEN:
+		return "yaml_BLOCK_ENTRY_TOKEN"
+	case yaml_FLOW_ENTRY_TOKEN:
+		return "yaml_FLOW_ENTRY_TOKEN"
+	case yaml_KEY_TOKEN:
+		return "yaml_KEY_TOKEN"
+	case yaml_VALUE_TOKEN:
+		return "yaml_VALUE_TOKEN"
+	case yaml_ALIAS_TOKEN:
+		return "yaml_ALIAS_TOKEN"
+	case yaml_ANCHOR_TOKEN:
+		return "yaml_ANCHOR_TOKEN"
+	case yaml_TAG_TOKEN:
+		return "yaml_TAG_TOKEN"
+	case yaml_SCALAR_TOKEN:
+		return "yaml_SCALAR_TOKEN"
+	}
+	return "<unknown token>"
+}
+
+// The token structure.
+type yaml_token_t struct {
+	// The token type.
+	typ yaml_token_type_t
+
+	// The start/end of the token.
+	start_mark, end_mark yaml_mark_t
+
+	// The stream encoding (for yaml_STREAM_START_TOKEN).
+	encoding yaml_encoding_t
+
+	// The alias/anchor/scalar value or tag/tag directive handle
+	// (for yaml_ALIAS_TOKEN, yaml_ANCHOR_TOKEN, yaml_SCALAR_TOKEN, yaml_TAG_TOKEN, yaml_TAG_DIRECTIVE_TOKEN).
+	value []byte
+
+	// The tag suffix (for yaml_TAG_TOKEN).
+	suffix []byte
+
+	// The tag directive prefix (for yaml_TAG_DIRECTIVE_TOKEN).
+	prefix []byte
+
+	// The scalar style (for yaml_SCALAR_TOKEN).
+	style yaml_scalar_style_t
+
+	// The version directive major/minor (for yaml_VERSION_DIRECTIVE_TOKEN).
+	major, minor int8
+}
+
+// Events
+
+type yaml_event_type_t int8
+
+// Event types.
+const (
+	// An empty event.
+	yaml_NO_EVENT yaml_event_type_t = iota
+
+	yaml_STREAM_START_EVENT   // A STREAM-START event.
+	yaml_STREAM_END_EVENT     // A STREAM-END event.
+	yaml_DOCUMENT_START_EVENT // A DOCUMENT-START event.
+	yaml_DOCUMENT_END_EVENT   // A DOCUMENT-END event.
+	yaml_ALIAS_EVENT          // An ALIAS event.
+	yaml_SCALAR_EVENT         // A SCALAR event.
+	yaml_SEQUENCE_START_EVENT // A SEQUENCE-START event.
+	yaml_SEQUENCE_END_EVENT   // A SEQUENCE-END event.
+	yaml_MAPPING_START_EVENT  // A MAPPING-START event.
+	yaml_MAPPING_END_EVENT    // A MAPPING-END event.
+)
+
+var eventStrings = []string{
+	yaml_NO_EVENT:             "none",
+	yaml_STREAM_START_EVENT:   "stream start",
+	yaml_STREAM_END_EVENT:     "stream end",
+	yaml_DOCUMENT_START_EVENT: "document start",
+	yaml_DOCUMENT_END_EVENT:   "document end",
+	yaml_ALIAS_EVENT:          "alias",
+	yaml_SCALAR_EVENT:         "scalar",
+	yaml_SEQUENCE_START_EVENT: "sequence start",
+	yaml_SEQUENCE_END_EVENT:   "sequence end",
+	yaml_MAPPING_START_EVENT:  "mapping start",
+	yaml_MAPPING_END_EVENT:    "mapping end",
+}
+
+func (e yaml_event_type_t) String() string {
+	if e < 0 || int(e) >= len(eventStrings) {
+		return fmt.Sprintf("unknown event %d", e)
+	}
+	return eventStrings[e]
+}
+
+// The event structure.
+type yaml_event_t struct {
+
+	// The event type.
+	typ yaml_event_type_t
+
+	// The start and end of the event.
+	start_mark, end_mark yaml_mark_t
+
+	// The document encoding (for yaml_STREAM_START_EVENT).
+	encoding yaml_encoding_t
+
+	// The version directive (for yaml_DOCUMENT_START_EVENT).
+	version_directive *yaml_version_directive_t
+
+	// The list of tag directives (for yaml_DOCUMENT_START_EVENT).
+	tag_directives []yaml_tag_directive_t
+
+	// The anchor (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_ALIAS_EVENT).
+	anchor []byte
+
+	// The tag (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
+	tag []byte
+
+	// The scalar value (for yaml_SCALAR_EVENT).
+	value []byte
+
+	// Is the document start/end indicator implicit, or the tag optional?
+	// (for yaml_DOCUMENT_START_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_SCALAR_EVENT).
+	implicit bool
+
+	// Is the tag optional for any non-plain style? (for yaml_SCALAR_EVENT).
+	quoted_implicit bool
+
+	// The style (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
+	style yaml_style_t
+}
+
+func (e *yaml_event_t) scalar_style() yaml_scalar_style_t     { return yaml_scalar_style_t(e.style) }
+func (e *yaml_event_t) sequence_style() yaml_sequence_style_t { return yaml_sequence_style_t(e.style) }
+func (e *yaml_event_t) mapping_style() yaml_mapping_style_t   { return yaml_mapping_style_t(e.style) }
+
+// Nodes
+
+const (
+	yaml_NULL_TAG      = "tag:yaml.org,2002:null"      // The tag !!null with the only possible value: null.
+	yaml_BOOL_TAG      = "tag:yaml.org,2002:bool"      // The tag !!bool with the values: true and false.
+	yaml_STR_TAG       = "tag:yaml.org,2002:str"       // The tag !!str for string values.
+	yaml_INT_TAG       = "tag:yaml.org,2002:int"       // The tag !!int for integer values.
+	yaml_FLOAT_TAG     = "tag:yaml.org,2002:float"     // The tag !!float for float values.
+	yaml_TIMESTAMP_TAG = "tag:yaml.org,2002:timestamp" // The tag !!timestamp for date and time values.
+
+	yaml_SEQ_TAG = "tag:yaml.org,2002:seq" // The tag !!seq is used to denote sequences.
+	yaml_MAP_TAG = "tag:yaml.org,2002:map" // The tag !!map is used to denote mapping.
+
+	// Not in original libyaml.
+	yaml_BINARY_TAG = "tag:yaml.org,2002:binary"
+	yaml_MERGE_TAG  = "tag:yaml.org,2002:merge"
+
+	yaml_DEFAULT_SCALAR_TAG   = yaml_STR_TAG // The default scalar tag is !!str.
+	yaml_DEFAULT_SEQUENCE_TAG = yaml_SEQ_TAG // The default sequence tag is !!seq.
+	yaml_DEFAULT_MAPPING_TAG  = yaml_MAP_TAG // The default mapping tag is !!map.
+)
+
+type yaml_node_type_t int
+
+// Node types.
+const (
+	// An empty node.
+	yaml_NO_NODE yaml_node_type_t = iota
+
+	yaml_SCALAR_NODE   // A scalar node.
+	yaml_SEQUENCE_NODE // A sequence node.
+	yaml_MAPPING_NODE  // A mapping node.
+)
+
+// An element of a sequence node.
+type yaml_node_item_t int
+
+// An element of a mapping node.
+type yaml_node_pair_t struct {
+	key   int // The key of the element.
+	value int // The value of the element.
+}
+
+// The node structure.
+type yaml_node_t struct {
+	typ yaml_node_type_t // The node type.
+	tag []byte           // The node tag.
+
+	// The node data.
+
+	// The scalar parameters (for yaml_SCALAR_NODE).
+	scalar struct {
+		value  []byte              // The scalar value.
+		length int                 // The length of the scalar value.
+		style  yaml_scalar_style_t // The scalar style.
+	}
+
+	// The sequence parameters (for YAML_SEQUENCE_NODE).
+	sequence struct {
+		items_data []yaml_node_item_t    // The stack of sequence items.
+		style      yaml_sequence_style_t // The sequence style.
+	}
+
+	// The mapping parameters (for yaml_MAPPING_NODE).
+	mapping struct {
+		pairs_data  []yaml_node_pair_t   // The stack of mapping pairs (key, value).
+		pairs_start *yaml_node_pair_t    // The beginning of the stack.
+		pairs_end   *yaml_node_pair_t    // The end of the stack.
+		pairs_top   *yaml_node_pair_t    // The top of the stack.
+		style       yaml_mapping_style_t // The mapping style.
+	}
+
+	start_mark yaml_mark_t // The beginning of the node.
+	end_mark   yaml_mark_t // The end of the node.
+
+}
+
+// The document structure.
+type yaml_document_t struct {
+
+	// The document nodes.
+	nodes []yaml_node_t
+
+	// The version directive.
+	version_directive *yaml_version_directive_t
+
+	// The list of tag directives.
+	tag_directives_data  []yaml_tag_directive_t
+	tag_directives_start int // The beginning of the tag directives list.
+	tag_directives_end   int // The end of the tag directives list.
+
+	start_implicit int // Is the document start indicator implicit?
+	end_implicit   int // Is the document end indicator implicit?
+
+	// The start/end of the document.
+	start_mark, end_mark yaml_mark_t
+}
+
+// The prototype of a read handler.
+//
+// The read handler is called when the parser needs to read more bytes from the
+// source. The handler should write not more than size bytes to the buffer.
+// The number of written bytes should be set to the size_read variable.
+//
+// [in,out]   data        A pointer to an application data specified by
+//                        yaml_parser_set_input().
+// [out]      buffer      The buffer to write the data from the source.
+// [in]       size        The size of the buffer.
+// [out]      size_read   The actual number of bytes read from the source.
+//
+// On success, the handler should return 1.  If the handler failed,
+// the returned value should be 0. On EOF, the handler should set the
+// size_read to 0 and return 1.
+type yaml_read_handler_t func(parser *yaml_parser_t, buffer []byte) (n int, err error)
+
+// This structure holds information about a potential simple key.
+type yaml_simple_key_t struct {
+	possible     bool        // Is a simple key possible?
+	required     bool        // Is a simple key required?
+	token_number int         // The number of the token.
+	mark         yaml_mark_t // The position mark.
+}
+
+// The states of the parser.
+type yaml_parser_state_t int
+
+const (
+	yaml_PARSE_STREAM_START_STATE yaml_parser_state_t = iota
+
+	yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE           // Expect the beginning of an implicit document.
+	yaml_PARSE_DOCUMENT_START_STATE                    // Expect DOCUMENT-START.
+	yaml_PARSE_DOCUMENT_CONTENT_STATE                  // Expect the content of a document.
+	yaml_PARSE_DOCUMENT_END_STATE                      // Expect DOCUMENT-END.
+	yaml_PARSE_BLOCK_NODE_STATE                        // Expect a block node.
+	yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE // Expect a block node or indentless sequence.
+	yaml_PARSE_FLOW_NODE_STATE                         // Expect a flow node.
+	yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE        // Expect the first entry of a block sequence.
+	yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE              // Expect an entry of a block sequence.
+	yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE         // Expect an entry of an indentless sequence.
+	yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE           // Expect the first key of a block mapping.
+	yaml_PARSE_BLOCK_MAPPING_KEY_STATE                 // Expect a block mapping key.
+	yaml_PARSE_BLOCK_MAPPING_VALUE_STATE               // Expect a block mapping value.
+	yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE         // Expect the first entry of a flow sequence.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE               // Expect an entry of a flow sequence.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE   // Expect a key of an ordered mapping.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE // Expect a value of an ordered mapping.
+	yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE   // Expect the and of an ordered mapping entry.
+	yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE            // Expect the first key of a flow mapping.
+	yaml_PARSE_FLOW_MAPPING_KEY_STATE                  // Expect a key of a flow mapping.
+	yaml_PARSE_FLOW_MAPPING_VALUE_STATE                // Expect a value of a flow mapping.
+	yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE          // Expect an empty value of a flow mapping.
+	yaml_PARSE_END_STATE                               // Expect nothing.
+)
+
+func (ps yaml_parser_state_t) String() string {
+	switch ps {
+	case yaml_PARSE_STREAM_START_STATE:
+		return "yaml_PARSE_STREAM_START_STATE"
+	case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE:
+		return "yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE"
+	case yaml_PARSE_DOCUMENT_START_STATE:
+		return "yaml_PARSE_DOCUMENT_START_STATE"
+	case yaml_PARSE_DOCUMENT_CONTENT_STATE:
+		return "yaml_PARSE_DOCUMENT_CONTENT_STATE"
+	case yaml_PARSE_DOCUMENT_END_STATE:
+		return "yaml_PARSE_DOCUMENT_END_STATE"
+	case yaml_PARSE_BLOCK_NODE_STATE:
+		return "yaml_PARSE_BLOCK_NODE_STATE"
+	case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE:
+		return "yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE"
+	case yaml_PARSE_FLOW_NODE_STATE:
+		return "yaml_PARSE_FLOW_NODE_STATE"
+	case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE:
+		return "yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE"
+	case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE:
+		return "yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE"
+	case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE:
+		return "yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE"
+	case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE:
+		return "yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE"
+	case yaml_PARSE_BLOCK_MAPPING_KEY_STATE:
+		return "yaml_PARSE_BLOCK_MAPPING_KEY_STATE"
+	case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE:
+		return "yaml_PARSE_BLOCK_MAPPING_VALUE_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE"
+	case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE:
+		return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE"
+	case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE"
+	case yaml_PARSE_FLOW_MAPPING_KEY_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_KEY_STATE"
+	case yaml_PARSE_FLOW_MAPPING_VALUE_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_VALUE_STATE"
+	case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE:
+		return "yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE"
+	case yaml_PARSE_END_STATE:
+		return "yaml_PARSE_END_STATE"
+	}
+	return "<unknown parser state>"
+}
+
+// This structure holds aliases data.
+type yaml_alias_data_t struct {
+	anchor []byte      // The anchor.
+	index  int         // The node id.
+	mark   yaml_mark_t // The anchor mark.
+}
+
+// The parser structure.
+//
+// All members are internal. Manage the structure using the
+// yaml_parser_ family of functions.
+type yaml_parser_t struct {
+
+	// Error handling
+
+	error yaml_error_type_t // Error type.
+
+	problem string // Error description.
+
+	// The byte about which the problem occurred.
+	problem_offset int
+	problem_value  int
+	problem_mark   yaml_mark_t
+
+	// The error context.
+	context      string
+	context_mark yaml_mark_t
+
+	// Reader stuff
+
+	read_handler yaml_read_handler_t // Read handler.
+
+	input_reader io.Reader // File input data.
+	input        []byte    // String input data.
+	input_pos    int
+
+	eof bool // EOF flag
+
+	buffer     []byte // The working buffer.
+	buffer_pos int    // The current position of the buffer.
+
+	unread int // The number of unread characters in the buffer.
+
+	raw_buffer     []byte // The raw buffer.
+	raw_buffer_pos int    // The current position of the buffer.
+
+	encoding yaml_encoding_t // The input encoding.
+
+	offset int         // The offset of the current position (in bytes).
+	mark   yaml_mark_t // The mark of the current position.
+
+	// Scanner stuff
+
+	stream_start_produced bool // Have we started to scan the input stream?
+	stream_end_produced   bool // Have we reached the end of the input stream?
+
+	flow_level int // The number of unclosed '[' and '{' indicators.
+
+	tokens          []yaml_token_t // The tokens queue.
+	tokens_head     int            // The head of the tokens queue.
+	tokens_parsed   int            // The number of tokens fetched from the queue.
+	token_available bool           // Does the tokens queue contain a token ready for dequeueing.
+
+	indent  int   // The current indentation level.
+	indents []int // The indentation levels stack.
+
+	simple_key_allowed bool                // May a simple key occur at the current position?
+	simple_keys        []yaml_simple_key_t // The stack of simple keys.
+	simple_keys_by_tok map[int]int         // possible simple_key indexes indexed by token_number
+
+	// Parser stuff
+
+	state          yaml_parser_state_t    // The current parser state.
+	states         []yaml_parser_state_t  // The parser states stack.
+	marks          []yaml_mark_t          // The stack of marks.
+	tag_directives []yaml_tag_directive_t // The list of TAG directives.
+
+	// Dumper stuff
+
+	aliases []yaml_alias_data_t // The alias data.
+
+	document *yaml_document_t // The currently parsed document.
+}
+
+// Emitter Definitions
+
+// The prototype of a write handler.
+//
+// The write handler is called when the emitter needs to flush the accumulated
+// characters to the output.  The handler should write @a size bytes of the
+// @a buffer to the output.
+//
+// @param[in,out]   data        A pointer to an application data specified by
+//                              yaml_emitter_set_output().
+// @param[in]       buffer      The buffer with bytes to be written.
+// @param[in]       size        The size of the buffer.
+//
+// @returns On success, the handler should return @c 1.  If the handler failed,
+// the returned value should be @c 0.
+//
+type yaml_write_handler_t func(emitter *yaml_emitter_t, buffer []byte) error
+
+type yaml_emitter_state_t int
+
+// The emitter states.
+const (
+	// Expect STREAM-START.
+	yaml_EMIT_STREAM_START_STATE yaml_emitter_state_t = iota
+
+	yaml_EMIT_FIRST_DOCUMENT_START_STATE       // Expect the first DOCUMENT-START or STREAM-END.
+	yaml_EMIT_DOCUMENT_START_STATE             // Expect DOCUMENT-START or STREAM-END.
+	yaml_EMIT_DOCUMENT_CONTENT_STATE           // Expect the content of a document.
+	yaml_EMIT_DOCUMENT_END_STATE               // Expect DOCUMENT-END.
+	yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE   // Expect the first item of a flow sequence.
+	yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE         // Expect an item of a flow sequence.
+	yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE     // Expect the first key of a flow mapping.
+	yaml_EMIT_FLOW_MAPPING_KEY_STATE           // Expect a key of a flow mapping.
+	yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE  // Expect a value for a simple key of a flow mapping.
+	yaml_EMIT_FLOW_MAPPING_VALUE_STATE         // Expect a value of a flow mapping.
+	yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE  // Expect the first item of a block sequence.
+	yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE        // Expect an item of a block sequence.
+	yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE    // Expect the first key of a block mapping.
+	yaml_EMIT_BLOCK_MAPPING_KEY_STATE          // Expect the key of a block mapping.
+	yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a block mapping.
+	yaml_EMIT_BLOCK_MAPPING_VALUE_STATE        // Expect a value of a block mapping.
+	yaml_EMIT_END_STATE                        // Expect nothing.
+)
+
+// The emitter structure.
+//
+// All members are internal.  Manage the structure using the @c yaml_emitter_
+// family of functions.
+type yaml_emitter_t struct {
+
+	// Error handling
+
+	error   yaml_error_type_t // Error type.
+	problem string            // Error description.
+
+	// Writer stuff
+
+	write_handler yaml_write_handler_t // Write handler.
+
+	output_buffer *[]byte   // String output data.
+	output_writer io.Writer // File output data.
+
+	buffer     []byte // The working buffer.
+	buffer_pos int    // The current position of the buffer.
+
+	raw_buffer     []byte // The raw buffer.
+	raw_buffer_pos int    // The current position of the buffer.
+
+	encoding yaml_encoding_t // The stream encoding.
+
+	// Emitter stuff
+
+	canonical   bool         // If the output is in the canonical style?
+	best_indent int          // The number of indentation spaces.
+	best_width  int          // The preferred width of the output lines.
+	unicode     bool         // Allow unescaped non-ASCII characters?
+	line_break  yaml_break_t // The preferred line break.
+
+	state  yaml_emitter_state_t   // The current emitter state.
+	states []yaml_emitter_state_t // The stack of states.
+
+	events      []yaml_event_t // The event queue.
+	events_head int            // The head of the event queue.
+
+	indents []int // The stack of indentation levels.
+
+	tag_directives []yaml_tag_directive_t // The list of tag directives.
+
+	indent int // The current indentation level.
+
+	flow_level int // The current flow level.
+
+	root_context       bool // Is it the document root context?
+	sequence_context   bool // Is it a sequence context?
+	mapping_context    bool // Is it a mapping context?
+	simple_key_context bool // Is it a simple mapping key context?
+
+	line       int  // The current line.
+	column     int  // The current column.
+	whitespace bool // If the last character was a whitespace?
+	indention  bool // If the last character was an indentation character (' ', '-', '?', ':')?
+	open_ended bool // If an explicit document end is required?
+
+	// Anchor analysis.
+	anchor_data struct {
+		anchor []byte // The anchor value.
+		alias  bool   // Is it an alias?
+	}
+
+	// Tag analysis.
+	tag_data struct {
+		handle []byte // The tag handle.
+		suffix []byte // The tag suffix.
+	}
+
+	// Scalar analysis.
+	scalar_data struct {
+		value                 []byte              // The scalar value.
+		multiline             bool                // Does the scalar contain line breaks?
+		flow_plain_allowed    bool                // Can the scalar be expessed in the flow plain style?
+		block_plain_allowed   bool                // Can the scalar be expressed in the block plain style?
+		single_quoted_allowed bool                // Can the scalar be expressed in the single quoted style?
+		block_allowed         bool                // Can the scalar be expressed in the literal or folded styles?
+		style                 yaml_scalar_style_t // The output style.
+	}
+
+	// Dumper stuff
+
+	opened bool // If the stream was already opened?
+	closed bool // If the stream was already closed?
+
+	// The information associated with the document nodes.
+	anchors *struct {
+		references int  // The number of references.
+		anchor     int  // The anchor id.
+		serialized bool // If the node has been emitted?
+	}
+
+	last_anchor_id int // The last assigned anchor id.
+
+	document *yaml_document_t // The currently emitted document.
+}
--- a/vendor/go.yaml.in/yaml/v2/yamlprivateh.go
+++ b/vendor/go.yaml.in/yaml/v2/yamlprivateh.go
@@ -0,0 +1,173 @@
+package yaml
+
+const (
+	// The size of the input raw buffer.
+	input_raw_buffer_size = 512
+
+	// The size of the input buffer.
+	// It should be possible to decode the whole raw buffer.
+	input_buffer_size = input_raw_buffer_size * 3
+
+	// The size of the output buffer.
+	output_buffer_size = 128
+
+	// The size of the output raw buffer.
+	// It should be possible to encode the whole output buffer.
+	output_raw_buffer_size = (output_buffer_size*2 + 2)
+
+	// The size of other stacks and queues.
+	initial_stack_size  = 16
+	initial_queue_size  = 16
+	initial_string_size = 16
+)
+
+// Check if the character at the specified position is an alphabetical
+// character, a digit, '_', or '-'.
+func is_alpha(b []byte, i int) bool {
+	return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'Z' || b[i] >= 'a' && b[i] <= 'z' || b[i] == '_' || b[i] == '-'
+}
+
+// Check if the character at the specified position is a digit.
+func is_digit(b []byte, i int) bool {
+	return b[i] >= '0' && b[i] <= '9'
+}
+
+// Get the value of a digit.
+func as_digit(b []byte, i int) int {
+	return int(b[i]) - '0'
+}
+
+// Check if the character at the specified position is a hex-digit.
+func is_hex(b []byte, i int) bool {
+	return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'F' || b[i] >= 'a' && b[i] <= 'f'
+}
+
+// Get the value of a hex-digit.
+func as_hex(b []byte, i int) int {
+	bi := b[i]
+	if bi >= 'A' && bi <= 'F' {
+		return int(bi) - 'A' + 10
+	}
+	if bi >= 'a' && bi <= 'f' {
+		return int(bi) - 'a' + 10
+	}
+	return int(bi) - '0'
+}
+
+// Check if the character is ASCII.
+func is_ascii(b []byte, i int) bool {
+	return b[i] <= 0x7F
+}
+
+// Check if the character at the start of the buffer can be printed unescaped.
+func is_printable(b []byte, i int) bool {
+	return ((b[i] == 0x0A) || // . == #x0A
+		(b[i] >= 0x20 && b[i] <= 0x7E) || // #x20 <= . <= #x7E
+		(b[i] == 0xC2 && b[i+1] >= 0xA0) || // #0xA0 <= . <= #xD7FF
+		(b[i] > 0xC2 && b[i] < 0xED) ||
+		(b[i] == 0xED && b[i+1] < 0xA0) ||
+		(b[i] == 0xEE) ||
+		(b[i] == 0xEF && // #xE000 <= . <= #xFFFD
+			!(b[i+1] == 0xBB && b[i+2] == 0xBF) && // && . != #xFEFF
+			!(b[i+1] == 0xBF && (b[i+2] == 0xBE || b[i+2] == 0xBF))))
+}
+
+// Check if the character at the specified position is NUL.
+func is_z(b []byte, i int) bool {
+	return b[i] == 0x00
+}
+
+// Check if the beginning of the buffer is a BOM.
+func is_bom(b []byte, i int) bool {
+	return b[0] == 0xEF && b[1] == 0xBB && b[2] == 0xBF
+}
+
+// Check if the character at the specified position is space.
+func is_space(b []byte, i int) bool {
+	return b[i] == ' '
+}
+
+// Check if the character at the specified position is tab.
+func is_tab(b []byte, i int) bool {
+	return b[i] == '\t'
+}
+
+// Check if the character at the specified position is blank (space or tab).
+func is_blank(b []byte, i int) bool {
+	//return is_space(b, i) || is_tab(b, i)
+	return b[i] == ' ' || b[i] == '\t'
+}
+
+// Check if the character at the specified position is a line break.
+func is_break(b []byte, i int) bool {
+	return (b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9) // PS (#x2029)
+}
+
+func is_crlf(b []byte, i int) bool {
+	return b[i] == '\r' && b[i+1] == '\n'
+}
+
+// Check if the character is a line break or NUL.
+func is_breakz(b []byte, i int) bool {
+	//return is_break(b, i) || is_z(b, i)
+	return (        // is_break:
+	b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
+		// is_z:
+		b[i] == 0)
+}
+
+// Check if the character is a line break, space, or NUL.
+func is_spacez(b []byte, i int) bool {
+	//return is_space(b, i) || is_breakz(b, i)
+	return ( // is_space:
+	b[i] == ' ' ||
+		// is_breakz:
+		b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
+		b[i] == 0)
+}
+
+// Check if the character is a line break, space, tab, or NUL.
+func is_blankz(b []byte, i int) bool {
+	//return is_blank(b, i) || is_breakz(b, i)
+	return ( // is_blank:
+	b[i] == ' ' || b[i] == '\t' ||
+		// is_breakz:
+		b[i] == '\r' || // CR (#xD)
+		b[i] == '\n' || // LF (#xA)
+		b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+		b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
+		b[i] == 0)
+}
+
+// Determine the width of the character.
+func width(b byte) int {
+	// Don't replace these by a switch without first
+	// confirming that it is being inlined.
+	if b&0x80 == 0x00 {
+		return 1
+	}
+	if b&0xE0 == 0xC0 {
+		return 2
+	}
+	if b&0xF0 == 0xE0 {
+		return 3
+	}
+	if b&0xF8 == 0xF0 {
+		return 4
+	}
+	return 0
+
+}
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -1186,23 +1186,23 @@ github.com/planetscale/vtprotobuf/vtproto
 # github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2
 ## explicit
 github.com/pmezard/go-difflib/difflib
-# github.com/prometheus/client_golang v1.22.0
-## explicit; go 1.22
+# github.com/prometheus/client_golang v1.23.2
+## explicit; go 1.23.0
 github.com/prometheus/client_golang/internal/github.com/golang/gddo/httputil
 github.com/prometheus/client_golang/internal/github.com/golang/gddo/httputil/header
 github.com/prometheus/client_golang/prometheus
 github.com/prometheus/client_golang/prometheus/internal
 github.com/prometheus/client_golang/prometheus/promhttp
 github.com/prometheus/client_golang/prometheus/promhttp/internal
-# github.com/prometheus/client_model v0.6.1
-## explicit; go 1.19
+# github.com/prometheus/client_model v0.6.2
+## explicit; go 1.22.0
 github.com/prometheus/client_model/go
-# github.com/prometheus/common v0.62.0
-## explicit; go 1.21
+# github.com/prometheus/common v0.66.1
+## explicit; go 1.23.0
 github.com/prometheus/common/expfmt
 github.com/prometheus/common/model
-# github.com/prometheus/procfs v0.15.1
-## explicit; go 1.20
+# github.com/prometheus/procfs v0.16.1
+## explicit; go 1.23.0
 github.com/prometheus/procfs
 github.com/prometheus/procfs/internal/fs
 github.com/prometheus/procfs/internal/util
@@ -1482,6 +1482,9 @@ go.uber.org/zap/internal/exit
 go.uber.org/zap/internal/pool
 go.uber.org/zap/internal/stacktrace
 go.uber.org/zap/zapcore
+# go.yaml.in/yaml/v2 v2.4.3
+## explicit; go 1.15
+go.yaml.in/yaml/v2
 # golang.org/x/crypto v0.43.0
 ## explicit; go 1.24.0
 golang.org/x/crypto/blowfish