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Merge pull request #45282 from feiskyer/gc-fix 

Automatic merge from submit-queue

Fix flake in sandbox garbage collection

**What this PR does / why we need it**:

Sorry for introducing a flakiness in #43053: the creation time is not set in `makeGCSandbox`, which caused the garbage collection removes sandboxes randomly if there are more than one dead sandboxes belonging to same pod.

This PR fixes the flakiness in sandbox garbage collection.

**Which issue this PR fixes** 

Fixes #45281 #45274.

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```


cc/ @Random-Liu @shashidharatd @kubernetes/sig-node-bugs
pull/6/head
Kubernetes Submit Queue 2017-05-03 09:38:47 -07:00 committed by GitHub
parent 4ff9234eec f4cb35846e
commit c320218d7b
1 changed files with 15 additions and 14 deletions
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29
pkg/kubelet/kuberuntime/kuberuntime_gc_test.go
View File

@ -35,15 +35,16 @@ func TestSandboxGC(t *testing.T) {
assert.NoError(t, err)
fakePodGetter := m.containerGC.podGetter.(*fakePodGetter)
makeGCSandbox := func(pod *v1.Pod, attempt uint32, state runtimeapi.PodSandboxState, withPodGetter bool) sandboxTemplate {
makeGCSandbox := func(pod *v1.Pod, attempt uint32, state runtimeapi.PodSandboxState, withPodGetter bool, createdAt int64) sandboxTemplate {
if withPodGetter {
// initialize the pod getter
fakePodGetter.pods[pod.UID] = pod
}
return sandboxTemplate{
pod: pod,
state: state,
attempt: attempt,
pod: pod,
state: state,
attempt: attempt,
createdAt: createdAt,
}
}
@ -70,7 +71,7 @@ func TestSandboxGC(t *testing.T) {
{
description: "notready sandboxes without containers for deleted pods should be garbage collected.",
sandboxes: []sandboxTemplate{
makeGCSandbox(pods[2], 0, runtimeapi.PodSandboxState_SANDBOX_NOTREADY, false),
makeGCSandbox(pods[2], 0, runtimeapi.PodSandboxState_SANDBOX_NOTREADY, false, 0),
},
containers: []containerTemplate{},
remain: []int{},
@ -78,7 +79,7 @@ func TestSandboxGC(t *testing.T) {
{
description: "ready sandboxes without containers for deleted pods should not be garbage collected.",
sandboxes: []sandboxTemplate{
makeGCSandbox(pods[2], 0, runtimeapi.PodSandboxState_SANDBOX_READY, false),
makeGCSandbox(pods[2], 0, runtimeapi.PodSandboxState_SANDBOX_READY, false, 0),
},
containers: []containerTemplate{},
remain: []int{0},
@ -86,8 +87,8 @@ func TestSandboxGC(t *testing.T) {
{
description: "sandboxes for existing pods should not be garbage collected.",
sandboxes: []sandboxTemplate{
makeGCSandbox(pods[0], 0, runtimeapi.PodSandboxState_SANDBOX_READY, true),
makeGCSandbox(pods[1], 0, runtimeapi.PodSandboxState_SANDBOX_NOTREADY, true),
makeGCSandbox(pods[0], 0, runtimeapi.PodSandboxState_SANDBOX_READY, true, 0),
makeGCSandbox(pods[1], 0, runtimeapi.PodSandboxState_SANDBOX_NOTREADY, true, 0),
},
containers: []containerTemplate{},
remain: []int{0, 1},
@ -95,7 +96,7 @@ func TestSandboxGC(t *testing.T) {
{
description: "sandbox with containers should not be garbage collected.",
sandboxes: []sandboxTemplate{
makeGCSandbox(pods[0], 0, runtimeapi.PodSandboxState_SANDBOX_NOTREADY, false),
makeGCSandbox(pods[0], 0, runtimeapi.PodSandboxState_SANDBOX_NOTREADY, false, 0),
},
containers: []containerTemplate{
{pod: pods[0], container: &pods[0].Spec.Containers[0], state: runtimeapi.ContainerState_CONTAINER_EXITED},
@ -106,15 +107,15 @@ func TestSandboxGC(t *testing.T) {
description: "multiple sandboxes should be handled properly.",
sandboxes: []sandboxTemplate{
// running sandbox.
makeGCSandbox(pods[0], 1, runtimeapi.PodSandboxState_SANDBOX_READY, true),
makeGCSandbox(pods[0], 1, runtimeapi.PodSandboxState_SANDBOX_READY, true, 1),
// exited sandbox without containers.
makeGCSandbox(pods[0], 0, runtimeapi.PodSandboxState_SANDBOX_NOTREADY, false),
makeGCSandbox(pods[0], 0, runtimeapi.PodSandboxState_SANDBOX_NOTREADY, true, 0),
// exited sandbox with containers.
makeGCSandbox(pods[1], 1, runtimeapi.PodSandboxState_SANDBOX_NOTREADY, true),
makeGCSandbox(pods[1], 1, runtimeapi.PodSandboxState_SANDBOX_NOTREADY, true, 1),
// exited sandbox without containers.
makeGCSandbox(pods[1], 0, runtimeapi.PodSandboxState_SANDBOX_NOTREADY, false),
makeGCSandbox(pods[1], 0, runtimeapi.PodSandboxState_SANDBOX_NOTREADY, true, 0),
// exited sandbox without containers for deleted pods.
makeGCSandbox(pods[2], 0, runtimeapi.PodSandboxState_SANDBOX_NOTREADY, false),
makeGCSandbox(pods[2], 0, runtimeapi.PodSandboxState_SANDBOX_NOTREADY, false, 0),
},
containers: []containerTemplate{
{pod: pods[1], container: &pods[1].Spec.Containers[0], sandboxAttempt: 1, state: runtimeapi.ContainerState_CONTAINER_EXITED},