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60 lines
1.8 KiB
Go
60 lines
1.8 KiB
Go
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package plugin
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import (
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"github.com/containerd/nri/pkg/api"
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)
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const (
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// AnnotationDomain is the domain used for NRI-specific annotations.
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AnnotationDomain = "noderesource.dev"
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// RequiredPluginsAnnotation can be used to annotate pods with a list
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// of pod- or container-specific plugins which must process containers
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// during creation. If enabled, the default validator checks for this
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// and rejects the creation of containers which fail this check.
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RequiredPluginsAnnotation = "required-plugins." + AnnotationDomain
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)
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// GetEffectiveAnnotation retrieves a custom annotation from a pod which
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// applies to given container. The syntax allows both pod- and container-
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// scoped annotations. Container-scoped annotations take precedence over
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// pod-scoped ones. The key syntax defines the scope of the annotation.
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// - container-scope: <key>/container.<container-name>
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// - pod-scope: <key>/pod, or just <key>
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func GetEffectiveAnnotation(pod *api.PodSandbox, key, container string) (string, bool) {
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annotations := pod.GetAnnotations()
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if len(annotations) == 0 {
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return "", false
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}
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keys := []string{
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key + "/container." + container,
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key + "/pod",
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key,
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}
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for _, k := range keys {
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if v, ok := annotations[k]; ok {
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return v, true
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}
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}
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return "", false
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}
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