本文整理汇总了Golang中k8s/io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/core/unversioned.ReplicationControllerInterface.Watch方法的典型用法代码示例。如果您正苦于以下问题：Golang ReplicationControllerInterface.Watch方法的具体用法？Golang ReplicationControllerInterface.Watch怎么用？Golang ReplicationControllerInterface.Watch使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类k8s/io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/core/unversioned.ReplicationControllerInterface的用法示例。
在下文中一共展示了ReplicationControllerInterface.Watch方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: WaitForADeployment
// WaitForADeployment waits for a deployment to fulfill either isOK or isFailed.
// When isOK returns true, WaitForADeployment returns nil, when isFailed returns
// true, WaitForADeployment returns an error including the deployment status.
// WaitForADeployment waits for at most a certain timeout (non-configurable).
func WaitForADeployment(client kcoreclient.ReplicationControllerInterface, name string, isOK, isFailed func(*kapi.ReplicationController) bool, oc *CLI) error {
timeout := 15 * time.Minute
// closing done signals that any pending operation should be aborted.
done := make(chan struct{})
defer close(done)
// okOrFailed returns whether a replication controller matches either of
// the predicates isOK or isFailed, and the associated error in case of
// failure.
okOrFailed := func(rc *kapi.ReplicationController) (err error, matched bool) {
if isOK(rc) {
return nil, true
}
if isFailed(rc) {
return fmt.Errorf("The deployment %q status is %q", name, rc.Annotations[deployapi.DeploymentStatusAnnotation]), true
}
return nil, false
}
// waitForDeployment waits until okOrFailed returns true or the done
// channel is closed.
waitForDeployment := func() (err error, retry bool) {
requirement, err := labels.NewRequirement(deployapi.DeploymentConfigAnnotation, selection.Equals, sets.NewString(name))
if err != nil {
return fmt.Errorf("unexpected error generating label selector: %v", err), false
}
list, err := client.List(kapi.ListOptions{LabelSelector: labels.NewSelector().Add(*requirement)})
if err != nil {
return err, false
}
// multiple deployments are conceivable; so we look to see how the latest depoy does
var lastRC *kapi.ReplicationController
for _, rc := range list.Items {
if lastRC == nil {
lastRC = &rc
continue
}
if compareResourceControllerNames(lastRC.GetName(), rc.GetName()) <= 0 {
lastRC = &rc
}
}
if lastRC != nil {
err, matched := okOrFailed(lastRC)
if matched {
return err, false
}
}
w, err := client.Watch(kapi.ListOptions{LabelSelector: labels.NewSelector().Add(*requirement), ResourceVersion: list.ResourceVersion})
if err != nil {
return err, false
}
defer w.Stop()
for {
select {
case val, ok := <-w.ResultChan():
if !ok {
// watcher error, re-get and re-watch
return nil, true
}
rc, ok := val.Object.(*kapi.ReplicationController)
if !ok {
continue
}
if lastRC == nil {
lastRC = rc
}
// multiple deployments are conceivable; so we look to see how the latest deployment does
if compareResourceControllerNames(lastRC.GetName(), rc.GetName()) <= 0 {
lastRC = rc
err, matched := okOrFailed(rc)
if matched {
return err, false
}
}
case <-done:
// no more time left, stop what we were doing,
// do no retry.
return nil, false
}
}
}
// errCh is buffered so the goroutine below never blocks on sending,
// preventing a goroutine leak if we reach the timeout.
errCh := make(chan error, 1)
go func() {
defer close(errCh)
err, retry := waitForDeployment()
for retry {
err, retry = waitForDeployment()
}
errCh <- err
//.........这里部分代码省略.........