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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| package conditions | ||
|
|
||
| import ( | ||
| corev1 "k8s.io/api/core/v1" | ||
| "k8s.io/apimachinery/pkg/api/errors" | ||
| "k8s.io/apimachinery/pkg/runtime/schema" | ||
| "k8s.io/apimachinery/pkg/watch" | ||
| "k8s.io/kubernetes/pkg/kubectl" | ||
| ) | ||
|
|
||
| // PodContainerRunning returns false until the named container has ContainerStatus running (at least once), | ||
| // and will return an error if the pod is deleted, runs to completion, or the container pod is not available. | ||
| func PodContainerRunning(containerName string) watch.ConditionFunc { | ||
| return func(event watch.Event) (bool, error) { | ||
| switch event.Type { | ||
| case watch.Deleted: | ||
| return false, errors.NewNotFound(schema.GroupResource{Resource: "pods"}, "") | ||
| } | ||
| switch t := event.Object.(type) { | ||
| case *corev1.Pod: | ||
| switch t.Status.Phase { | ||
| case corev1.PodRunning, corev1.PodPending: | ||
| case corev1.PodFailed, corev1.PodSucceeded: | ||
| return false, kubectl.ErrPodCompleted | ||
| default: | ||
| return false, nil | ||
| } | ||
| for _, s := range t.Status.ContainerStatuses { | ||
| if s.Name != containerName { | ||
| continue | ||
| } | ||
| if s.State.Terminated != nil { | ||
| return false, kubectl.ErrContainerTerminated | ||
| } | ||
| return s.State.Running != nil, nil | ||
| } | ||
| for _, s := range t.Status.InitContainerStatuses { | ||
| if s.Name != containerName { | ||
| continue | ||
| } | ||
| if s.State.Terminated != nil { | ||
| return false, kubectl.ErrContainerTerminated | ||
| } | ||
| return s.State.Running != nil, nil | ||
| } | ||
| return false, nil | ||
| } | ||
| return false, nil | ||
| } | ||
| } |