Files
moby/integration-cli/docker_api_swarm_service_test.go
Aleksa Sarai 5e4e34a966 tests: migrate strings.Contains -> is.Contains in assertions
Migrated using

  find . -type f -name "*_test.go" |
    xargs gofmt -w \
      -r "assert.Check(t, strings.Contains(a, b)) -> assert.Check(t, is.Contains(a, b))"

  find . -type f -name "*_test.go" |
    xargs gofmt -w \
      -r "assert.Assert(t, strings.Contains(a, b)) -> assert.Assert(t, is.Contains(a, b))"

Using a boolean in assert.Assert or assert.Check results in error
messages that don't contain the actual problematic string, and when
running the integration suite on an actual machine (where the source
code parsing doesn't work) this makes it almost impossible to figure out
what the actual error is.

Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
2024-11-22 23:59:20 +11:00

610 lines
24 KiB
Go

//go:build !windows
package main
import (
"fmt"
"strconv"
"strings"
"testing"
"time"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/swarm"
"github.com/docker/docker/integration-cli/checker"
"github.com/docker/docker/integration-cli/cli"
"github.com/docker/docker/integration-cli/cli/build"
"github.com/docker/docker/integration-cli/daemon"
"github.com/docker/docker/testutil"
testdaemon "github.com/docker/docker/testutil/daemon"
"golang.org/x/sys/unix"
"gotest.tools/v3/assert"
is "gotest.tools/v3/assert/cmp"
"gotest.tools/v3/icmd"
"gotest.tools/v3/poll"
)
func setPortConfig(portConfig []swarm.PortConfig) testdaemon.ServiceConstructor {
return func(s *swarm.Service) {
if s.Spec.EndpointSpec == nil {
s.Spec.EndpointSpec = &swarm.EndpointSpec{}
}
s.Spec.EndpointSpec.Ports = portConfig
}
}
func (s *DockerSwarmSuite) TestAPIServiceUpdatePort(c *testing.T) {
ctx := testutil.GetContext(c)
d := s.AddDaemon(ctx, c, true, true)
// Create a service with a port mapping of 8080:8081.
portConfig := []swarm.PortConfig{{TargetPort: 8081, PublishedPort: 8080}}
serviceID := d.CreateService(ctx, c, simpleTestService, setInstances(1), setPortConfig(portConfig))
poll.WaitOn(c, pollCheck(c, d.CheckActiveContainerCount(ctx), checker.Equals(1)), poll.WithTimeout(defaultReconciliationTimeout))
// Update the service: changed the port mapping from 8080:8081 to 8082:8083.
updatedPortConfig := []swarm.PortConfig{{TargetPort: 8083, PublishedPort: 8082}}
remoteService := d.GetService(ctx, c, serviceID)
d.UpdateService(ctx, c, remoteService, setPortConfig(updatedPortConfig))
// Inspect the service and verify port mapping.
updatedService := d.GetService(ctx, c, serviceID)
assert.Assert(c, updatedService.Spec.EndpointSpec != nil)
assert.Equal(c, len(updatedService.Spec.EndpointSpec.Ports), 1)
assert.Equal(c, updatedService.Spec.EndpointSpec.Ports[0].TargetPort, uint32(8083))
assert.Equal(c, updatedService.Spec.EndpointSpec.Ports[0].PublishedPort, uint32(8082))
}
func (s *DockerSwarmSuite) TestAPISwarmServicesEmptyList(c *testing.T) {
ctx := testutil.GetContext(c)
d := s.AddDaemon(ctx, c, true, true)
services := d.ListServices(ctx, c)
assert.Assert(c, services != nil)
assert.Assert(c, len(services) == 0, "services: %#v", services)
}
func (s *DockerSwarmSuite) TestAPISwarmServicesCreate(c *testing.T) {
ctx := testutil.GetContext(c)
d := s.AddDaemon(ctx, c, true, true)
instances := 2
id := d.CreateService(ctx, c, simpleTestService, setInstances(instances))
poll.WaitOn(c, pollCheck(c, d.CheckActiveContainerCount(ctx), checker.Equals(instances)), poll.WithTimeout(defaultReconciliationTimeout))
client := d.NewClientT(c)
defer client.Close()
options := types.ServiceInspectOptions{InsertDefaults: true}
// insertDefaults inserts UpdateConfig when service is fetched by ID
resp, _, err := client.ServiceInspectWithRaw(ctx, id, options)
out := fmt.Sprintf("%+v", resp)
assert.NilError(c, err)
assert.Assert(c, is.Contains(out, "UpdateConfig"))
// insertDefaults inserts UpdateConfig when service is fetched by ID
resp, _, err = client.ServiceInspectWithRaw(ctx, "top", options)
out = fmt.Sprintf("%+v", resp)
assert.NilError(c, err)
assert.Assert(c, is.Contains(out, "UpdateConfig"))
service := d.GetService(ctx, c, id)
instances = 5
d.UpdateService(ctx, c, service, setInstances(instances))
poll.WaitOn(c, pollCheck(c, d.CheckActiveContainerCount(ctx), checker.Equals(instances)), poll.WithTimeout(defaultReconciliationTimeout))
d.RemoveService(ctx, c, service.ID)
poll.WaitOn(c, pollCheck(c, d.CheckActiveContainerCount(ctx), checker.Equals(0)), poll.WithTimeout(defaultReconciliationTimeout))
}
func (s *DockerSwarmSuite) TestAPISwarmServicesMultipleAgents(c *testing.T) {
ctx := testutil.GetContext(c)
d1 := s.AddDaemon(ctx, c, true, true)
d2 := s.AddDaemon(ctx, c, true, false)
d3 := s.AddDaemon(ctx, c, true, false)
time.Sleep(1 * time.Second) // make sure all daemons are ready to accept tasks
instances := 9
id := d1.CreateService(ctx, c, simpleTestService, setInstances(instances))
poll.WaitOn(c, pollCheck(c, d1.CheckActiveContainerCount(ctx), checker.GreaterThan(0)), poll.WithTimeout(defaultReconciliationTimeout))
poll.WaitOn(c, pollCheck(c, d2.CheckActiveContainerCount(ctx), checker.GreaterThan(0)), poll.WithTimeout(defaultReconciliationTimeout))
poll.WaitOn(c, pollCheck(c, d3.CheckActiveContainerCount(ctx), checker.GreaterThan(0)), poll.WithTimeout(defaultReconciliationTimeout))
poll.WaitOn(c, pollCheck(c, reducedCheck(sumAsIntegers, d1.CheckActiveContainerCount(ctx), d2.CheckActiveContainerCount(ctx), d3.CheckActiveContainerCount(ctx)), checker.Equals(instances)), poll.WithTimeout(defaultReconciliationTimeout))
// reconciliation on d2 node down
d2.Stop(c)
poll.WaitOn(c, pollCheck(c, reducedCheck(sumAsIntegers, d1.CheckActiveContainerCount(ctx), d3.CheckActiveContainerCount(ctx)), checker.Equals(instances)), poll.WithTimeout(defaultReconciliationTimeout))
// test downscaling
instances = 5
d1.UpdateService(ctx, c, d1.GetService(ctx, c, id), setInstances(instances))
poll.WaitOn(c, pollCheck(c, reducedCheck(sumAsIntegers, d1.CheckActiveContainerCount(ctx), d3.CheckActiveContainerCount(ctx)), checker.Equals(instances)), poll.WithTimeout(defaultReconciliationTimeout))
}
func (s *DockerSwarmSuite) TestAPISwarmServicesCreateGlobal(c *testing.T) {
ctx := testutil.GetContext(c)
d1 := s.AddDaemon(ctx, c, true, true)
d2 := s.AddDaemon(ctx, c, true, false)
d3 := s.AddDaemon(ctx, c, true, false)
d1.CreateService(ctx, c, simpleTestService, setGlobalMode)
poll.WaitOn(c, pollCheck(c, d1.CheckActiveContainerCount(ctx), checker.Equals(1)), poll.WithTimeout(defaultReconciliationTimeout))
poll.WaitOn(c, pollCheck(c, d2.CheckActiveContainerCount(ctx), checker.Equals(1)), poll.WithTimeout(defaultReconciliationTimeout))
poll.WaitOn(c, pollCheck(c, d3.CheckActiveContainerCount(ctx), checker.Equals(1)), poll.WithTimeout(defaultReconciliationTimeout))
d4 := s.AddDaemon(ctx, c, true, false)
d5 := s.AddDaemon(ctx, c, true, false)
poll.WaitOn(c, pollCheck(c, d4.CheckActiveContainerCount(ctx), checker.Equals(1)), poll.WithTimeout(defaultReconciliationTimeout))
poll.WaitOn(c, pollCheck(c, d5.CheckActiveContainerCount(ctx), checker.Equals(1)), poll.WithTimeout(defaultReconciliationTimeout))
}
func (s *DockerSwarmSuite) TestAPISwarmServicesUpdate(c *testing.T) {
ctx := testutil.GetContext(c)
const nodeCount = 3
var daemons [nodeCount]*daemon.Daemon
for i := 0; i < nodeCount; i++ {
daemons[i] = s.AddDaemon(ctx, c, true, i == 0)
}
// wait for nodes ready
poll.WaitOn(c, pollCheck(c, daemons[0].CheckNodeReadyCount(ctx), checker.Equals(nodeCount)), poll.WithTimeout(5*time.Second))
// service image at start
image1 := "busybox:latest"
// target image in update
image2 := "busybox:test"
// create a different tag
for _, d := range daemons {
out, err := d.Cmd("tag", image1, image2)
assert.NilError(c, err, out)
}
// create service
instances := 5
parallelism := 2
rollbackParallelism := 3
id := daemons[0].CreateService(ctx, c, serviceForUpdate, setInstances(instances))
// wait for tasks ready
poll.WaitOn(c, pollCheck(c, daemons[0].CheckRunningTaskImages(ctx), checker.DeepEquals(map[string]int{image1: instances})), poll.WithTimeout(defaultReconciliationTimeout))
// issue service update
service := daemons[0].GetService(ctx, c, id)
daemons[0].UpdateService(ctx, c, service, setImage(image2))
// first batch
poll.WaitOn(c, pollCheck(c, daemons[0].CheckRunningTaskImages(ctx), checker.DeepEquals(map[string]int{image1: instances - parallelism, image2: parallelism})), poll.WithTimeout(defaultReconciliationTimeout))
// 2nd batch
poll.WaitOn(c, pollCheck(c, daemons[0].CheckRunningTaskImages(ctx), checker.DeepEquals(map[string]int{image1: instances - 2*parallelism, image2: 2 * parallelism})), poll.WithTimeout(defaultReconciliationTimeout))
// 3nd batch
poll.WaitOn(c, pollCheck(c, daemons[0].CheckRunningTaskImages(ctx), checker.DeepEquals(map[string]int{image2: instances})), poll.WithTimeout(defaultReconciliationTimeout))
// Roll back to the previous version. This uses the CLI because
// rollback used to be a client-side operation.
out, err := daemons[0].Cmd("service", "update", "--detach", "--rollback", id)
assert.NilError(c, err, out)
// first batch
poll.WaitOn(c, pollCheck(c, daemons[0].CheckRunningTaskImages(ctx), checker.DeepEquals(map[string]int{image2: instances - rollbackParallelism, image1: rollbackParallelism})), poll.WithTimeout(defaultReconciliationTimeout))
// 2nd batch
poll.WaitOn(c, pollCheck(c, daemons[0].CheckRunningTaskImages(ctx), checker.DeepEquals(map[string]int{image1: instances})), poll.WithTimeout(defaultReconciliationTimeout))
}
func (s *DockerSwarmSuite) TestAPISwarmServicesUpdateStartFirst(c *testing.T) {
ctx := testutil.GetContext(c)
d := s.AddDaemon(ctx, c, true, true)
// service image at start
image1 := "busybox:latest"
// target image in update
image2 := "testhealth:latest"
// service started from this image won't pass health check
result := cli.BuildCmd(c, image2, cli.Daemon(d),
build.WithDockerfile(`FROM busybox
HEALTHCHECK --interval=1s --timeout=30s --retries=1024 \
CMD cat /status`),
)
result.Assert(c, icmd.Success)
// create service
instances := 5
parallelism := 2
rollbackParallelism := 3
id := d.CreateService(ctx, c, serviceForUpdate, setInstances(instances), setUpdateOrder(swarm.UpdateOrderStartFirst), setRollbackOrder(swarm.UpdateOrderStartFirst))
checkStartingTasks := func(expected int) []swarm.Task {
var startingTasks []swarm.Task
poll.WaitOn(c, pollCheck(c, func(c *testing.T) (interface{}, string) {
tasks := d.GetServiceTasks(ctx, c, id)
startingTasks = nil
for _, t := range tasks {
if t.Status.State == swarm.TaskStateStarting {
startingTasks = append(startingTasks, t)
}
}
return startingTasks, ""
}, checker.HasLen(expected)), poll.WithTimeout(defaultReconciliationTimeout))
return startingTasks
}
makeTasksHealthy := func(tasks []swarm.Task) {
for _, t := range tasks {
containerID := t.Status.ContainerStatus.ContainerID
d.Cmd("exec", containerID, "touch", "/status")
}
}
// wait for tasks ready
poll.WaitOn(c, pollCheck(c, d.CheckRunningTaskImages(ctx), checker.DeepEquals(map[string]int{image1: instances})), poll.WithTimeout(defaultReconciliationTimeout))
// issue service update
service := d.GetService(ctx, c, id)
d.UpdateService(ctx, c, service, setImage(image2))
// first batch
// The old tasks should be running, and the new ones should be starting.
startingTasks := checkStartingTasks(parallelism)
poll.WaitOn(c, pollCheck(c, d.CheckRunningTaskImages(ctx), checker.DeepEquals(map[string]int{image1: instances})), poll.WithTimeout(defaultReconciliationTimeout))
// make it healthy
makeTasksHealthy(startingTasks)
poll.WaitOn(c, pollCheck(c, d.CheckRunningTaskImages(ctx), checker.DeepEquals(map[string]int{image1: instances - parallelism, image2: parallelism})), poll.WithTimeout(defaultReconciliationTimeout))
// 2nd batch
// The old tasks should be running, and the new ones should be starting.
startingTasks = checkStartingTasks(parallelism)
poll.WaitOn(c, pollCheck(c, d.CheckRunningTaskImages(ctx), checker.DeepEquals(map[string]int{image1: instances - parallelism, image2: parallelism})), poll.WithTimeout(defaultReconciliationTimeout))
// make it healthy
makeTasksHealthy(startingTasks)
poll.WaitOn(c, pollCheck(c, d.CheckRunningTaskImages(ctx), checker.DeepEquals(map[string]int{image1: instances - 2*parallelism, image2: 2 * parallelism})), poll.WithTimeout(defaultReconciliationTimeout))
// 3nd batch
// The old tasks should be running, and the new ones should be starting.
startingTasks = checkStartingTasks(1)
poll.WaitOn(c, pollCheck(c, d.CheckRunningTaskImages(ctx), checker.DeepEquals(map[string]int{image1: instances - 2*parallelism, image2: 2 * parallelism})), poll.WithTimeout(defaultReconciliationTimeout))
// make it healthy
makeTasksHealthy(startingTasks)
poll.WaitOn(c, pollCheck(c, d.CheckRunningTaskImages(ctx), checker.DeepEquals(map[string]int{image2: instances})), poll.WithTimeout(defaultReconciliationTimeout))
// Roll back to the previous version. This uses the CLI because
// rollback is a client-side operation.
out, err := d.Cmd("service", "update", "--detach", "--rollback", id)
assert.NilError(c, err, out)
// first batch
poll.WaitOn(c, pollCheck(c, d.CheckRunningTaskImages(ctx), checker.DeepEquals(map[string]int{image2: instances - rollbackParallelism, image1: rollbackParallelism})), poll.WithTimeout(defaultReconciliationTimeout))
// 2nd batch
poll.WaitOn(c, pollCheck(c, d.CheckRunningTaskImages(ctx), checker.DeepEquals(map[string]int{image1: instances})), poll.WithTimeout(defaultReconciliationTimeout))
}
func (s *DockerSwarmSuite) TestAPISwarmServicesFailedUpdate(c *testing.T) {
ctx := testutil.GetContext(c)
const nodeCount = 3
var daemons [nodeCount]*daemon.Daemon
for i := 0; i < nodeCount; i++ {
daemons[i] = s.AddDaemon(ctx, c, true, i == 0)
}
// wait for nodes ready
poll.WaitOn(c, pollCheck(c, daemons[0].CheckNodeReadyCount(ctx), checker.Equals(nodeCount)), poll.WithTimeout(5*time.Second))
// service image at start
image1 := "busybox:latest"
// target image in update
image2 := "busybox:badtag"
// create service
instances := 5
id := daemons[0].CreateService(ctx, c, serviceForUpdate, setInstances(instances))
// wait for tasks ready
poll.WaitOn(c, pollCheck(c, daemons[0].CheckRunningTaskImages(ctx), checker.DeepEquals(map[string]int{image1: instances})), poll.WithTimeout(defaultReconciliationTimeout))
// issue service update
service := daemons[0].GetService(ctx, c, id)
daemons[0].UpdateService(ctx, c, service, setImage(image2), setFailureAction(swarm.UpdateFailureActionPause), setMaxFailureRatio(0.25), setParallelism(1))
// should update 2 tasks and then pause
poll.WaitOn(c, pollCheck(c, daemons[0].CheckServiceUpdateState(ctx, id), checker.Equals(swarm.UpdateStatePaused)), poll.WithTimeout(defaultReconciliationTimeout))
v, _ := daemons[0].CheckServiceRunningTasks(ctx, id)(c)
assert.Assert(c, v == instances-2)
// Roll back to the previous version. This uses the CLI because
// rollback used to be a client-side operation.
out, err := daemons[0].Cmd("service", "update", "--detach", "--rollback", id)
assert.NilError(c, err, out)
poll.WaitOn(c, pollCheck(c, daemons[0].CheckRunningTaskImages(ctx), checker.DeepEquals(map[string]int{image1: instances})), poll.WithTimeout(defaultReconciliationTimeout))
}
func (s *DockerSwarmSuite) TestAPISwarmServiceConstraintRole(c *testing.T) {
ctx := testutil.GetContext(c)
const nodeCount = 3
var daemons [nodeCount]*daemon.Daemon
for i := 0; i < nodeCount; i++ {
daemons[i] = s.AddDaemon(ctx, c, true, i == 0)
}
// wait for nodes ready
poll.WaitOn(c, pollCheck(c, daemons[0].CheckNodeReadyCount(ctx), checker.Equals(nodeCount)), poll.WithTimeout(5*time.Second))
// create service
constraints := []string{"node.role==worker"}
instances := 3
id := daemons[0].CreateService(ctx, c, simpleTestService, setConstraints(constraints), setInstances(instances))
// wait for tasks ready
poll.WaitOn(c, pollCheck(c, daemons[0].CheckServiceRunningTasks(ctx, id), checker.Equals(instances)), poll.WithTimeout(defaultReconciliationTimeout))
// validate tasks are running on worker nodes
tasks := daemons[0].GetServiceTasks(ctx, c, id)
for _, task := range tasks {
node := daemons[0].GetNode(ctx, c, task.NodeID)
assert.Equal(c, node.Spec.Role, swarm.NodeRoleWorker)
}
// remove service
daemons[0].RemoveService(ctx, c, id)
// create service
constraints = []string{"node.role!=worker"}
id = daemons[0].CreateService(ctx, c, simpleTestService, setConstraints(constraints), setInstances(instances))
// wait for tasks ready
poll.WaitOn(c, pollCheck(c, daemons[0].CheckServiceRunningTasks(ctx, id), checker.Equals(instances)), poll.WithTimeout(defaultReconciliationTimeout))
tasks = daemons[0].GetServiceTasks(ctx, c, id)
// validate tasks are running on manager nodes
for _, task := range tasks {
node := daemons[0].GetNode(ctx, c, task.NodeID)
assert.Equal(c, node.Spec.Role, swarm.NodeRoleManager)
}
// remove service
daemons[0].RemoveService(ctx, c, id)
// create service
constraints = []string{"node.role==nosuchrole"}
id = daemons[0].CreateService(ctx, c, simpleTestService, setConstraints(constraints), setInstances(instances))
// wait for tasks created
poll.WaitOn(c, pollCheck(c, daemons[0].CheckServiceTasks(ctx, id), checker.Equals(instances)), poll.WithTimeout(defaultReconciliationTimeout))
// let scheduler try
time.Sleep(250 * time.Millisecond)
// validate tasks are not assigned to any node
tasks = daemons[0].GetServiceTasks(ctx, c, id)
for _, task := range tasks {
assert.Equal(c, task.NodeID, "")
}
}
func (s *DockerSwarmSuite) TestAPISwarmServiceConstraintLabel(c *testing.T) {
ctx := testutil.GetContext(c)
const nodeCount = 3
var daemons [nodeCount]*daemon.Daemon
for i := 0; i < nodeCount; i++ {
daemons[i] = s.AddDaemon(ctx, c, true, i == 0)
}
// wait for nodes ready
poll.WaitOn(c, pollCheck(c, daemons[0].CheckNodeReadyCount(ctx), checker.Equals(nodeCount)), poll.WithTimeout(5*time.Second))
nodes := daemons[0].ListNodes(ctx, c)
assert.Equal(c, len(nodes), nodeCount)
// add labels to nodes
daemons[0].UpdateNode(ctx, c, nodes[0].ID, func(n *swarm.Node) {
n.Spec.Annotations.Labels = map[string]string{
"security": "high",
}
})
for i := 1; i < nodeCount; i++ {
daemons[0].UpdateNode(ctx, c, nodes[i].ID, func(n *swarm.Node) {
n.Spec.Annotations.Labels = map[string]string{
"security": "low",
}
})
}
// create service
instances := 3
constraints := []string{"node.labels.security==high"}
id := daemons[0].CreateService(ctx, c, simpleTestService, setConstraints(constraints), setInstances(instances))
// wait for tasks ready
poll.WaitOn(c, pollCheck(c, daemons[0].CheckServiceRunningTasks(ctx, id), checker.Equals(instances)), poll.WithTimeout(defaultReconciliationTimeout))
tasks := daemons[0].GetServiceTasks(ctx, c, id)
// validate all tasks are running on nodes[0]
for _, task := range tasks {
assert.Assert(c, task.NodeID == nodes[0].ID)
}
// remove service
daemons[0].RemoveService(ctx, c, id)
// create service
constraints = []string{"node.labels.security!=high"}
id = daemons[0].CreateService(ctx, c, simpleTestService, setConstraints(constraints), setInstances(instances))
// wait for tasks ready
poll.WaitOn(c, pollCheck(c, daemons[0].CheckServiceRunningTasks(ctx, id), checker.Equals(instances)), poll.WithTimeout(defaultReconciliationTimeout))
tasks = daemons[0].GetServiceTasks(ctx, c, id)
// validate all tasks are NOT running on nodes[0]
for _, task := range tasks {
assert.Assert(c, task.NodeID != nodes[0].ID)
}
// remove service
daemons[0].RemoveService(ctx, c, id)
constraints = []string{"node.labels.security==medium"}
id = daemons[0].CreateService(ctx, c, simpleTestService, setConstraints(constraints), setInstances(instances))
// wait for tasks created
poll.WaitOn(c, pollCheck(c, daemons[0].CheckServiceTasks(ctx, id), checker.Equals(instances)), poll.WithTimeout(defaultReconciliationTimeout))
// let scheduler try
time.Sleep(250 * time.Millisecond)
tasks = daemons[0].GetServiceTasks(ctx, c, id)
// validate tasks are not assigned
for _, task := range tasks {
assert.Assert(c, task.NodeID == "")
}
// remove service
daemons[0].RemoveService(ctx, c, id)
// multiple constraints
constraints = []string{
"node.labels.security==high",
fmt.Sprintf("node.id==%s", nodes[1].ID),
}
id = daemons[0].CreateService(ctx, c, simpleTestService, setConstraints(constraints), setInstances(instances))
// wait for tasks created
poll.WaitOn(c, pollCheck(c, daemons[0].CheckServiceTasks(ctx, id), checker.Equals(instances)), poll.WithTimeout(defaultReconciliationTimeout))
// let scheduler try
time.Sleep(250 * time.Millisecond)
tasks = daemons[0].GetServiceTasks(ctx, c, id)
// validate tasks are not assigned
for _, task := range tasks {
assert.Assert(c, task.NodeID == "")
}
// make nodes[1] fulfills the constraints
daemons[0].UpdateNode(ctx, c, nodes[1].ID, func(n *swarm.Node) {
n.Spec.Annotations.Labels = map[string]string{
"security": "high",
}
})
// wait for tasks ready
poll.WaitOn(c, pollCheck(c, daemons[0].CheckServiceRunningTasks(ctx, id), checker.Equals(instances)), poll.WithTimeout(defaultReconciliationTimeout))
tasks = daemons[0].GetServiceTasks(ctx, c, id)
for _, task := range tasks {
assert.Assert(c, task.NodeID == nodes[1].ID)
}
}
func (s *DockerSwarmSuite) TestAPISwarmServicePlacementPrefs(c *testing.T) {
ctx := testutil.GetContext(c)
const nodeCount = 3
var daemons [nodeCount]*daemon.Daemon
for i := 0; i < nodeCount; i++ {
daemons[i] = s.AddDaemon(ctx, c, true, i == 0)
}
// wait for nodes ready
poll.WaitOn(c, pollCheck(c, daemons[0].CheckNodeReadyCount(ctx), checker.Equals(nodeCount)), poll.WithTimeout(5*time.Second))
nodes := daemons[0].ListNodes(ctx, c)
assert.Equal(c, len(nodes), nodeCount)
// add labels to nodes
daemons[0].UpdateNode(ctx, c, nodes[0].ID, func(n *swarm.Node) {
n.Spec.Annotations.Labels = map[string]string{
"rack": "a",
}
})
for i := 1; i < nodeCount; i++ {
daemons[0].UpdateNode(ctx, c, nodes[i].ID, func(n *swarm.Node) {
n.Spec.Annotations.Labels = map[string]string{
"rack": "b",
}
})
}
// create service
instances := 4
prefs := []swarm.PlacementPreference{{Spread: &swarm.SpreadOver{SpreadDescriptor: "node.labels.rack"}}}
id := daemons[0].CreateService(ctx, c, simpleTestService, setPlacementPrefs(prefs), setInstances(instances))
// wait for tasks ready
poll.WaitOn(c, pollCheck(c, daemons[0].CheckServiceRunningTasks(ctx, id), checker.Equals(instances)), poll.WithTimeout(defaultReconciliationTimeout))
tasks := daemons[0].GetServiceTasks(ctx, c, id)
// validate all tasks are running on nodes[0]
tasksOnNode := make(map[string]int)
for _, task := range tasks {
tasksOnNode[task.NodeID]++
}
assert.Assert(c, tasksOnNode[nodes[0].ID] == 2)
assert.Assert(c, tasksOnNode[nodes[1].ID] == 1)
assert.Assert(c, tasksOnNode[nodes[2].ID] == 1)
}
func (s *DockerSwarmSuite) TestAPISwarmServicesStateReporting(c *testing.T) {
testRequires(c, testEnv.IsLocalDaemon)
testRequires(c, DaemonIsLinux)
ctx := testutil.GetContext(c)
d1 := s.AddDaemon(ctx, c, true, true)
d2 := s.AddDaemon(ctx, c, true, true)
d3 := s.AddDaemon(ctx, c, true, false)
time.Sleep(1 * time.Second) // make sure all daemons are ready to accept
instances := 9
d1.CreateService(ctx, c, simpleTestService, setInstances(instances))
poll.WaitOn(c, pollCheck(c, reducedCheck(sumAsIntegers, d1.CheckActiveContainerCount(ctx), d2.CheckActiveContainerCount(ctx), d3.CheckActiveContainerCount(ctx)), checker.Equals(instances)), poll.WithTimeout(defaultReconciliationTimeout))
getContainers := func() map[string]*daemon.Daemon {
m := make(map[string]*daemon.Daemon)
for _, d := range []*daemon.Daemon{d1, d2, d3} {
for _, id := range d.ActiveContainers(testutil.GetContext(c), c) {
m[id] = d
}
}
return m
}
containers := getContainers()
assert.Assert(c, len(containers) == instances)
var toRemove string
for i := range containers {
toRemove = i
}
_, err := containers[toRemove].Cmd("stop", toRemove)
assert.NilError(c, err)
poll.WaitOn(c, pollCheck(c, reducedCheck(sumAsIntegers, d1.CheckActiveContainerCount(ctx), d2.CheckActiveContainerCount(ctx), d3.CheckActiveContainerCount(ctx)), checker.Equals(instances)), poll.WithTimeout(defaultReconciliationTimeout))
containers2 := getContainers()
assert.Assert(c, len(containers2) == instances)
for i := range containers {
if i == toRemove {
assert.Assert(c, containers2[i] == nil)
} else {
assert.Assert(c, containers2[i] != nil)
}
}
containers = containers2
for i := range containers {
toRemove = i
}
// try with killing process outside of docker
pidStr, err := containers[toRemove].Cmd("inspect", "-f", "{{.State.Pid}}", toRemove)
assert.NilError(c, err)
pid, err := strconv.Atoi(strings.TrimSpace(pidStr))
assert.NilError(c, err)
assert.NilError(c, unix.Kill(pid, unix.SIGKILL))
time.Sleep(time.Second) // give some time to handle the signal
poll.WaitOn(c, pollCheck(c, reducedCheck(sumAsIntegers, d1.CheckActiveContainerCount(ctx), d2.CheckActiveContainerCount(ctx), d3.CheckActiveContainerCount(ctx)), checker.Equals(instances)), poll.WithTimeout(defaultReconciliationTimeout))
containers2 = getContainers()
assert.Assert(c, len(containers2) == instances)
for i := range containers {
if i == toRemove {
assert.Assert(c, containers2[i] == nil)
} else {
assert.Assert(c, containers2[i] != nil)
}
}
}