github/kubernetes
1
0
Fork 0
mirror of https://github.com/k3s-io/kubernetes.git synced 2025-08-10 12:32:03 +00:00
Code Issues Projects Releases Wiki Activity

Add ability to find init Container IDs in cpumanager reconcileState()

Browse Source 
The cpumanager loops through all init Containers and app Containers when
reconciling its state. However, the current implementation of
findContainerIDByName(), which is call by the reconciler, does not
resolve for init Containers.

This patch updates findContainerIDByName() to account for init
Containers and adds a regression test that fails before the change and
succeeds after.
This commit is contained in:
Kevin Klues 2019-04-27 05:57:03 -07:00
parent 41f9f31592
commit ef27f5f1a5
2 changed files with 88 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
pkg/kubelet/cm/cpumanager/cpu_manager.go
View File

@ -294,7 +294,9 @@ func (m *manager) reconcileState() (success []reconciledContainer, failure []rec
}
func findContainerIDByName(status *v1.PodStatus, name string) (string, error) {
for _, container := range status.ContainerStatuses {
allStatuses := status.InitContainerStatuses
allStatuses = append(allStatuses, status.ContainerStatuses...)
for _, container := range allStatuses {
if container.Name == name && container.ContainerID != "" {
cid := &kubecontainer.ContainerID{}
err := cid.ParseString(container.ContainerID)

114
pkg/kubelet/cm/cpumanager/cpu_manager_test.go
View File

@ -352,14 +352,15 @@ func TestCPUManagerRemove(t *testing.T) {
func TestReconcileState(t *testing.T) {
testCases := []struct {
description string
activePods []*v1.Pod
pspPS v1.PodStatus
pspFound bool
stAssignments state.ContainerCPUAssignments
stDefaultCPUSet cpuset.CPUSet
updateErr error
expectFailedContainerName string
description string
activePods []*v1.Pod
pspPS v1.PodStatus
pspFound bool
stAssignments state.ContainerCPUAssignments
stDefaultCPUSet cpuset.CPUSet
updateErr error
expectSucceededContainerName string
expectFailedContainerName string
}{
{
description: "cpu manager reconclie - no error",
@ -390,9 +391,44 @@ func TestReconcileState(t *testing.T) {
stAssignments: state.ContainerCPUAssignments{
"fakeID": cpuset.NewCPUSet(1, 2),
},
stDefaultCPUSet: cpuset.NewCPUSet(3, 4, 5, 6, 7),
updateErr: nil,
expectFailedContainerName: "",
stDefaultCPUSet: cpuset.NewCPUSet(3, 4, 5, 6, 7),
updateErr: nil,
expectSucceededContainerName: "fakeName",
expectFailedContainerName: "",
},
{
description: "cpu manager reconcile init container - no error",
activePods: []*v1.Pod{
{
ObjectMeta: metav1.ObjectMeta{
Name: "fakePodName",
UID: "fakeUID",
},
Spec: v1.PodSpec{
InitContainers: []v1.Container{
{
Name: "fakeName",
},
},
},
},
},
pspPS: v1.PodStatus{
InitContainerStatuses: []v1.ContainerStatus{
{
Name: "fakeName",
ContainerID: "docker://fakeID",
},
},
},
pspFound: true,
stAssignments: state.ContainerCPUAssignments{
"fakeID": cpuset.NewCPUSet(1, 2),
},
stDefaultCPUSet: cpuset.NewCPUSet(3, 4, 5, 6, 7),
updateErr: nil,
expectSucceededContainerName: "fakeName",
expectFailedContainerName: "",
},
{
description: "cpu manager reconclie - pod status not found",
@ -411,12 +447,13 @@ func TestReconcileState(t *testing.T) {
},
},
},
pspPS: v1.PodStatus{},
pspFound: false,
stAssignments: state.ContainerCPUAssignments{},
stDefaultCPUSet: cpuset.NewCPUSet(),
updateErr: nil,
expectFailedContainerName: "fakeName",
pspPS: v1.PodStatus{},
pspFound: false,
stAssignments: state.ContainerCPUAssignments{},
stDefaultCPUSet: cpuset.NewCPUSet(),
updateErr: nil,
expectSucceededContainerName: "",
expectFailedContainerName: "fakeName",
},
{
description: "cpu manager reconclie - container id not found",
@ -443,11 +480,12 @@ func TestReconcileState(t *testing.T) {
},
},
},
pspFound: true,
stAssignments: state.ContainerCPUAssignments{},
stDefaultCPUSet: cpuset.NewCPUSet(),
updateErr: nil,
expectFailedContainerName: "fakeName",
pspFound: true,
stAssignments: state.ContainerCPUAssignments{},
stDefaultCPUSet: cpuset.NewCPUSet(),
updateErr: nil,
expectSucceededContainerName: "",
expectFailedContainerName: "fakeName",
},
{
description: "cpu manager reconclie - cpuset is empty",
@ -478,9 +516,10 @@ func TestReconcileState(t *testing.T) {
stAssignments: state.ContainerCPUAssignments{
"fakeID": cpuset.NewCPUSet(),
},
stDefaultCPUSet: cpuset.NewCPUSet(1, 2, 3, 4, 5, 6, 7),
updateErr: nil,
expectFailedContainerName: "fakeName",
stDefaultCPUSet: cpuset.NewCPUSet(1, 2, 3, 4, 5, 6, 7),
updateErr: nil,
expectSucceededContainerName: "",
expectFailedContainerName: "fakeName",
},
{
description: "cpu manager reconclie - container update error",
@ -511,9 +550,10 @@ func TestReconcileState(t *testing.T) {
stAssignments: state.ContainerCPUAssignments{
"fakeID": cpuset.NewCPUSet(1, 2),
},
stDefaultCPUSet: cpuset.NewCPUSet(3, 4, 5, 6, 7),
updateErr: fmt.Errorf("fake container update error"),
expectFailedContainerName: "fakeName",
stDefaultCPUSet: cpuset.NewCPUSet(3, 4, 5, 6, 7),
updateErr: fmt.Errorf("fake container update error"),
expectSucceededContainerName: "",
expectFailedContainerName: "fakeName",
},
}
@ -538,7 +578,22 @@ func TestReconcileState(t *testing.T) {
},
}
_, failure := mgr.reconcileState()
success, failure := mgr.reconcileState()
if testCase.expectSucceededContainerName != "" {
// Search succeeded reconciled containers for the supplied name.
foundSucceededContainer := false
for _, reconciled := range success {
if reconciled.containerName == testCase.expectSucceededContainerName {
foundSucceededContainer = true
break
}
}
if !foundSucceededContainer {
t.Errorf("%v", testCase.description)
t.Errorf("Expected reconciliation success for container: %s", testCase.expectSucceededContainerName)
}
}
if testCase.expectFailedContainerName != "" {
// Search failed reconciled containers for the supplied name.
@ -550,6 +605,7 @@ func TestReconcileState(t *testing.T) {
}
}
if !foundFailedContainer {
t.Errorf("%v", testCase.description)
t.Errorf("Expected reconciliation failure for container: %s", testCase.expectFailedContainerName)
}
}