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Merge pull request #77426 from Random-Liu/remove-terminated-pod

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Remove terminated pod from summary api.
This commit is contained in:
Kubernetes Prow Robot
2019-05-07 15:55:23 -07:00
committed by GitHub
parent 5523be3572 11cd4242f6
commit 946087b422
4 changed files with 98 additions and 22 deletions
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1
pkg/kubelet/stats/BUILD
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@@ -87,6 +87,7 @@ go_test(
"//staging/src/k8s.io/apimachinery/pkg/api/resource:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/types:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/util/uuid:go_default_library",
"//staging/src/k8s.io/cri-api/pkg/apis/runtime/v1alpha2:go_default_library",
"//staging/src/k8s.io/cri-api/pkg/apis/testing:go_default_library",
"//vendor/github.com/golang/mock/gomock:go_default_library",

54
pkg/kubelet/stats/cri_stats_provider.go
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@@ -137,6 +137,7 @@ func (p *criStatsProvider) listPodStats(updateCPUNanoCoreUsage bool) ([]statsapi
if err != nil {
return nil, fmt.Errorf("failed to list all pod sandboxes: %v", err)
}
podSandboxes = removeTerminatedPods(podSandboxes)
for _, s := range podSandboxes {
podSandboxMap[s.Id] = s
}
@@ -153,7 +154,7 @@ func (p *criStatsProvider) listPodStats(updateCPUNanoCoreUsage bool) ([]statsapi
return nil, fmt.Errorf("failed to list all container stats: %v", err)
}
containers = removeTerminatedContainer(containers)
containers = removeTerminatedContainers(containers)
// Creates container map.
containerMap := make(map[string]*runtimeapi.Container)
for _, c := range containers {
@@ -233,6 +234,7 @@ func (p *criStatsProvider) ListPodCPUAndMemoryStats() ([]statsapi.PodStats, erro
if err != nil {
return nil, fmt.Errorf("failed to list all pod sandboxes: %v", err)
}
podSandboxes = removeTerminatedPods(podSandboxes)
for _, s := range podSandboxes {
podSandboxMap[s.Id] = s
}
@@ -245,7 +247,7 @@ func (p *criStatsProvider) ListPodCPUAndMemoryStats() ([]statsapi.PodStats, erro
return nil, fmt.Errorf("failed to list all container stats: %v", err)
}
containers = removeTerminatedContainer(containers)
containers = removeTerminatedContainers(containers)
// Creates container map.
containerMap := make(map[string]*runtimeapi.Container)
for _, c := range containers {
@@ -690,9 +692,51 @@ func (p *criStatsProvider) cleanupOutdatedCaches() {
}
}
// removeTerminatedContainer returns the specified container but with
// the stats of the terminated containers removed.
func removeTerminatedContainer(containers []*runtimeapi.Container) []*runtimeapi.Container {
// removeTerminatedPods returns pods with terminated ones removed.
// It only removes a terminated pod when there is a running instance
// of the pod with the same name and namespace.
// This is needed because:
// 1) PodSandbox may be recreated;
// 2) Pod may be recreated with the same name and namespace.
func removeTerminatedPods(pods []*runtimeapi.PodSandbox) []*runtimeapi.PodSandbox {
podMap := make(map[statsapi.PodReference][]*runtimeapi.PodSandbox)
// Sort order by create time
sort.Slice(pods, func(i, j int) bool {
return pods[i].CreatedAt < pods[j].CreatedAt
})
for _, pod := range pods {
refID := statsapi.PodReference{
Name: pod.GetMetadata().GetName(),
Namespace: pod.GetMetadata().GetNamespace(),
// UID is intentionally left empty.
}
podMap[refID] = append(podMap[refID], pod)
}
result := make([]*runtimeapi.PodSandbox, 0)
for _, refs := range podMap {
if len(refs) == 1 {
result = append(result, refs[0])
continue
}
found := false
for i := 0; i < len(refs); i++ {
if refs[i].State == runtimeapi.PodSandboxState_SANDBOX_READY {
found = true
result = append(result, refs[i])
}
}
if !found {
result = append(result, refs[len(refs)-1])
}
}
return result
}
// removeTerminatedContainers returns containers with terminated ones.
// It only removes a terminated container when there is a running instance
// of the container.
func removeTerminatedContainers(containers []*runtimeapi.Container) []*runtimeapi.Container {
containerMap := make(map[containerID][]*runtimeapi.Container)
// Sort order by create time
sort.Slice(containers, func(i, j int) bool {

60
pkg/kubelet/stats/cri_stats_provider_test.go
View File

@@ -31,6 +31,7 @@ import (
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/uuid"
runtimeapi "k8s.io/cri-api/pkg/apis/runtime/v1alpha2"
critest "k8s.io/cri-api/pkg/apis/testing"
statsapi "k8s.io/kubernetes/pkg/kubelet/apis/stats/v1alpha1"
@@ -77,6 +78,8 @@ const (
cName2 = "container2-name"
cName3 = "container3-name"
cName5 = "container5-name"
cName6 = "container6-name"
cName7 = "container7-name"
)
func TestCRIListPodStats(t *testing.T) {
@@ -86,7 +89,7 @@ func TestCRIListPodStats(t *testing.T) {
imageFsInfo = getTestFsInfo(2000)
rootFsInfo = getTestFsInfo(1000)
sandbox0 = makeFakePodSandbox("sandbox0-name", "sandbox0-uid", "sandbox0-ns")
sandbox0 = makeFakePodSandbox("sandbox0-name", "sandbox0-uid", "sandbox0-ns", false)
sandbox0Cgroup = "/" + cm.GetPodCgroupNameSuffix(types.UID(sandbox0.PodSandboxStatus.Metadata.Uid))
container0 = makeFakeContainer(sandbox0, cName0, 0, false)
containerStats0 = makeFakeContainerStats(container0, imageFsMountpoint)
@@ -95,13 +98,13 @@ func TestCRIListPodStats(t *testing.T) {
containerStats1 = makeFakeContainerStats(container1, unknownMountpoint)
containerLogStats1 = makeFakeLogStats(2000)
sandbox1 = makeFakePodSandbox("sandbox1-name", "sandbox1-uid", "sandbox1-ns")
sandbox1 = makeFakePodSandbox("sandbox1-name", "sandbox1-uid", "sandbox1-ns", false)
sandbox1Cgroup = "/" + cm.GetPodCgroupNameSuffix(types.UID(sandbox1.PodSandboxStatus.Metadata.Uid))
container2 = makeFakeContainer(sandbox1, cName2, 0, false)
containerStats2 = makeFakeContainerStats(container2, imageFsMountpoint)
containerLogStats2 = makeFakeLogStats(3000)
sandbox2 = makeFakePodSandbox("sandbox2-name", "sandbox2-uid", "sandbox2-ns")
sandbox2 = makeFakePodSandbox("sandbox2-name", "sandbox2-uid", "sandbox2-ns", false)
sandbox2Cgroup = "/" + cm.GetPodCgroupNameSuffix(types.UID(sandbox2.PodSandboxStatus.Metadata.Uid))
container3 = makeFakeContainer(sandbox2, cName3, 0, true)
containerStats3 = makeFakeContainerStats(container3, imageFsMountpoint)
@@ -109,11 +112,21 @@ func TestCRIListPodStats(t *testing.T) {
containerStats4 = makeFakeContainerStats(container4, imageFsMountpoint)
containerLogStats4 = makeFakeLogStats(4000)
sandbox3 = makeFakePodSandbox("sandbox3-name", "sandbox3-uid", "sandbox3-ns")
sandbox3 = makeFakePodSandbox("sandbox3-name", "sandbox3-uid", "sandbox3-ns", false)
container5 = makeFakeContainer(sandbox3, cName5, 0, true)
containerStats5 = makeFakeContainerStats(container5, imageFsMountpoint)
containerLogStats5 = makeFakeLogStats(5000)
// Terminated pod sandbox
sandbox4 = makeFakePodSandbox("sandbox1-name", "sandbox1-uid", "sandbox1-ns", true)
container6 = makeFakeContainer(sandbox4, cName6, 0, true)
containerStats6 = makeFakeContainerStats(container6, imageFsMountpoint)
// Terminated pod
sandbox5 = makeFakePodSandbox("sandbox1-name", "sandbox5-uid", "sandbox1-ns", true)
container7 = makeFakeContainer(sandbox5, cName7, 0, true)
containerStats7 = makeFakeContainerStats(container7, imageFsMountpoint)
podLogName0 = "pod-log-0"
podLogName1 = "pod-log-1"
podLogStats0 = makeFakeLogStats(5000)
@@ -157,13 +170,13 @@ func TestCRIListPodStats(t *testing.T) {
On("GetDirFsInfo", imageFsMountpoint).Return(imageFsInfo, nil).
On("GetDirFsInfo", unknownMountpoint).Return(cadvisorapiv2.FsInfo{}, cadvisorfs.ErrNoSuchDevice)
fakeRuntimeService.SetFakeSandboxes([]*critest.FakePodSandbox{
sandbox0, sandbox1, sandbox2, sandbox3,
sandbox0, sandbox1, sandbox2, sandbox3, sandbox4, sandbox5,
})
fakeRuntimeService.SetFakeContainers([]*critest.FakeContainer{
container0, container1, container2, container3, container4, container5,
container0, container1, container2, container3, container4, container5, container6, container7,
})
fakeRuntimeService.SetFakeContainerStats([]*runtimeapi.ContainerStats{
containerStats0, containerStats1, containerStats2, containerStats3, containerStats4, containerStats5,
containerStats0, containerStats1, containerStats2, containerStats3, containerStats4, containerStats5, containerStats6, containerStats7,
})
ephemeralVolumes := makeFakeVolumeStats([]string{"ephVolume1, ephVolumes2"})
@@ -304,28 +317,38 @@ func TestCRIListPodCPUAndMemoryStats(t *testing.T) {
imageFsMountpoint = "/test/mount/point"
unknownMountpoint = "/unknown/mount/point"
sandbox0 = makeFakePodSandbox("sandbox0-name", "sandbox0-uid", "sandbox0-ns")
sandbox0 = makeFakePodSandbox("sandbox0-name", "sandbox0-uid", "sandbox0-ns", false)
sandbox0Cgroup = "/" + cm.GetPodCgroupNameSuffix(types.UID(sandbox0.PodSandboxStatus.Metadata.Uid))
container0 = makeFakeContainer(sandbox0, cName0, 0, false)
containerStats0 = makeFakeContainerStats(container0, imageFsMountpoint)
container1 = makeFakeContainer(sandbox0, cName1, 0, false)
containerStats1 = makeFakeContainerStats(container1, unknownMountpoint)
sandbox1 = makeFakePodSandbox("sandbox1-name", "sandbox1-uid", "sandbox1-ns")
sandbox1 = makeFakePodSandbox("sandbox1-name", "sandbox1-uid", "sandbox1-ns", false)
sandbox1Cgroup = "/" + cm.GetPodCgroupNameSuffix(types.UID(sandbox1.PodSandboxStatus.Metadata.Uid))
container2 = makeFakeContainer(sandbox1, cName2, 0, false)
containerStats2 = makeFakeContainerStats(container2, imageFsMountpoint)
sandbox2 = makeFakePodSandbox("sandbox2-name", "sandbox2-uid", "sandbox2-ns")
sandbox2 = makeFakePodSandbox("sandbox2-name", "sandbox2-uid", "sandbox2-ns", false)
sandbox2Cgroup = "/" + cm.GetPodCgroupNameSuffix(types.UID(sandbox2.PodSandboxStatus.Metadata.Uid))
container3 = makeFakeContainer(sandbox2, cName3, 0, true)
containerStats3 = makeFakeContainerStats(container3, imageFsMountpoint)
container4 = makeFakeContainer(sandbox2, cName3, 1, false)
containerStats4 = makeFakeContainerStats(container4, imageFsMountpoint)
sandbox3 = makeFakePodSandbox("sandbox3-name", "sandbox3-uid", "sandbox3-ns")
sandbox3 = makeFakePodSandbox("sandbox3-name", "sandbox3-uid", "sandbox3-ns", false)
container5 = makeFakeContainer(sandbox3, cName5, 0, true)
containerStats5 = makeFakeContainerStats(container5, imageFsMountpoint)
// Terminated pod sandbox
sandbox4 = makeFakePodSandbox("sandbox1-name", "sandbox1-uid", "sandbox1-ns", true)
container6 = makeFakeContainer(sandbox4, cName6, 0, true)
containerStats6 = makeFakeContainerStats(container6, imageFsMountpoint)
// Terminated pod
sandbox5 = makeFakePodSandbox("sandbox1-name", "sandbox5-uid", "sandbox1-ns", true)
container7 = makeFakeContainer(sandbox5, cName7, 0, true)
containerStats7 = makeFakeContainerStats(container7, imageFsMountpoint)
)
var (
@@ -361,13 +384,13 @@ func TestCRIListPodCPUAndMemoryStats(t *testing.T) {
mockCadvisor.
On("ContainerInfoV2", "/", options).Return(infos, nil)
fakeRuntimeService.SetFakeSandboxes([]*critest.FakePodSandbox{
sandbox0, sandbox1, sandbox2, sandbox3,
sandbox0, sandbox1, sandbox2, sandbox3, sandbox4, sandbox5,
})
fakeRuntimeService.SetFakeContainers([]*critest.FakeContainer{
container0, container1, container2, container3, container4, container5,
container0, container1, container2, container3, container4, container5, container6, container7,
})
fakeRuntimeService.SetFakeContainerStats([]*runtimeapi.ContainerStats{
containerStats0, containerStats1, containerStats2, containerStats3, containerStats4, containerStats5,
containerStats0, containerStats1, containerStats2, containerStats3, containerStats4, containerStats5, containerStats6, containerStats7,
})
ephemeralVolumes := makeFakeVolumeStats([]string{"ephVolume1, ephVolumes2"})
@@ -523,7 +546,7 @@ func TestCRIImagesFsStats(t *testing.T) {
mockCadvisor.AssertExpectations(t)
}
func makeFakePodSandbox(name, uid, namespace string) *critest.FakePodSandbox {
func makeFakePodSandbox(name, uid, namespace string, terminated bool) *critest.FakePodSandbox {
p := &critest.FakePodSandbox{
PodSandboxStatus: runtimeapi.PodSandboxStatus{
Metadata: &runtimeapi.PodSandboxMetadata{
@@ -535,7 +558,10 @@ func makeFakePodSandbox(name, uid, namespace string) *critest.FakePodSandbox {
CreatedAt: time.Now().UnixNano(),
},
}
p.PodSandboxStatus.Id = critest.BuildSandboxName(p.PodSandboxStatus.Metadata)
if terminated {
p.PodSandboxStatus.State = runtimeapi.PodSandboxState_SANDBOX_NOTREADY
}
p.PodSandboxStatus.Id = string(uuid.NewUUID())
return p
}
@@ -561,7 +587,7 @@ func makeFakeContainer(sandbox *critest.FakePodSandbox, name string, attempt uin
} else {
c.ContainerStatus.State = runtimeapi.ContainerState_CONTAINER_RUNNING
}
c.ContainerStatus.Id = critest.BuildContainerName(c.ContainerStatus.Metadata, sandboxID)
c.ContainerStatus.Id = string(uuid.NewUUID())
return c
}

5
pkg/kubelet/stats/log_metrics_provider_test.go
View File

@@ -17,6 +17,8 @@ limitations under the License.
package stats
import (
"fmt"
"k8s.io/kubernetes/pkg/volume"
)
@@ -41,5 +43,8 @@ func NewFakeMetricsDu(path string, stats *volume.Metrics) volume.MetricsProvider
}
func (f *fakeMetricsDu) GetMetrics() (*volume.Metrics, error) {
if f.fakeStats == nil {
return nil, fmt.Errorf("no stats provided")
}
return f.fakeStats, nil
}