mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-07-23 19:56:01 +00:00
Rewrite summary stats test to validate metrics
This commit is contained in:
Tim St. Clair
parent
b19d71792f
commit
d4aeaedba0
@ -18,21 +18,14 @@ package e2e_node
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import (
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import (
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"bytes"
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"bytes"
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"encoding/json"
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"fmt"
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"fmt"
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"io/ioutil"
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"net/http"
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"strings"
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"time"
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"time"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/api"
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apiUnversioned "k8s.io/kubernetes/pkg/api/unversioned"
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apiUnversioned "k8s.io/kubernetes/pkg/api/unversioned"
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"k8s.io/kubernetes/pkg/kubelet/api/v1alpha1/stats"
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"k8s.io/kubernetes/pkg/util/sets"
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"k8s.io/kubernetes/pkg/util/uuid"
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"k8s.io/kubernetes/pkg/util/uuid"
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"k8s.io/kubernetes/test/e2e/framework"
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"k8s.io/kubernetes/test/e2e/framework"
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"github.com/davecgh/go-spew/spew"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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. "github.com/onsi/gomega"
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)
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)
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@ -158,322 +151,4 @@ var _ = framework.KubeDescribe("Kubelet", func() {
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}, time.Minute, time.Second*4).Should(Equal("sh: can't create /file: Read-only file system\n"))
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}, time.Minute, time.Second*4).Should(Equal("sh: can't create /file: Read-only file system\n"))
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})
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})
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})
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})
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Describe("metrics api", func() {
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Context("when querying /stats/summary", func() {
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It("it should report resource usage through the stats api", func() {
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podNamePrefix := "stats-busybox-" + string(uuid.NewUUID())
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volumeNamePrefix := "test-empty-dir"
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podNames, volumes := createSummaryTestPods(f.PodClient(), podNamePrefix, 2, volumeNamePrefix)
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By("Returning stats summary")
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summary := stats.Summary{}
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Eventually(func() error {
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resp, err := http.Get(*kubeletAddress + "/stats/summary")
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if err != nil {
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return fmt.Errorf("Failed to get /stats/summary - %v", err)
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}
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contentsBytes, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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return fmt.Errorf("Failed to read /stats/summary - %+v", resp)
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}
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contents := string(contentsBytes)
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decoder := json.NewDecoder(strings.NewReader(contents))
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err = decoder.Decode(&summary)
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if err != nil {
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return fmt.Errorf("Failed to parse /stats/summary to go struct: %+v", resp)
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}
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missingPods := podsMissingFromSummary(summary, podNames)
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if missingPods.Len() != 0 {
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return fmt.Errorf("expected pods not found. Following pods are missing - %v", missingPods)
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}
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missingVolumes := volumesMissingFromSummary(summary, volumes)
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if missingVolumes.Len() != 0 {
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return fmt.Errorf("expected volumes not found. Following volumes are missing - %v", missingVolumes)
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}
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if err := testSummaryMetrics(summary, podNamePrefix); err != nil {
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return err
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}
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return nil
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}, 5*time.Minute, time.Second*4).Should(BeNil())
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})
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})
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})
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})
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})
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const (
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containerSuffix = "-c"
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)
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func createSummaryTestPods(podClient *framework.PodClient, podNamePrefix string, count int, volumeNamePrefix string) (sets.String, sets.String) {
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podNames := sets.NewString()
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volumes := sets.NewString(volumeNamePrefix)
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for i := 0; i < count; i++ {
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podNames.Insert(fmt.Sprintf("%s%v", podNamePrefix, i))
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}
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var pods []*api.Pod
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for _, podName := range podNames.List() {
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pods = append(pods, &api.Pod{
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ObjectMeta: api.ObjectMeta{
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Name: podName,
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},
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Spec: api.PodSpec{
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// Don't restart the Pod since it is expected to exit
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RestartPolicy: api.RestartPolicyNever,
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Containers: []api.Container{
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{
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Image: "gcr.io/google_containers/busybox:1.24",
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Command: []string{"sh", "-c", "while true; do echo 'hello world' | tee /test-empty-dir-mnt/file ; sleep 1; done"},
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Name: podName + containerSuffix,
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VolumeMounts: []api.VolumeMount{
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{MountPath: "/test-empty-dir-mnt", Name: volumeNamePrefix},
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},
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},
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},
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SecurityContext: &api.PodSecurityContext{
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SELinuxOptions: &api.SELinuxOptions{
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Level: "s0",
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},
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},
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Volumes: []api.Volume{
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// TODO: Test secret volumes
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// TODO: Test hostpath volumes
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{Name: volumeNamePrefix, VolumeSource: api.VolumeSource{EmptyDir: &api.EmptyDirVolumeSource{}}},
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},
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},
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})
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}
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podClient.CreateBatch(pods)
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return podNames, volumes
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}
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// Returns pods missing from summary.
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func podsMissingFromSummary(s stats.Summary, expectedPods sets.String) sets.String {
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expectedPods = sets.StringKeySet(expectedPods)
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for _, pod := range s.Pods {
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if expectedPods.Has(pod.PodRef.Name) {
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expectedPods.Delete(pod.PodRef.Name)
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}
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}
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return expectedPods
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}
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// Returns volumes missing from summary.
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func volumesMissingFromSummary(s stats.Summary, expectedVolumes sets.String) sets.String {
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for _, pod := range s.Pods {
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expectedPodVolumes := sets.StringKeySet(expectedVolumes)
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for _, vs := range pod.VolumeStats {
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if expectedPodVolumes.Has(vs.Name) {
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expectedPodVolumes.Delete(vs.Name)
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}
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}
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if expectedPodVolumes.Len() != 0 {
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return expectedPodVolumes
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}
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}
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return sets.NewString()
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}
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func testSummaryMetrics(s stats.Summary, podNamePrefix string) error {
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const (
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nonNilValue = "expected %q to not be nil"
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nonZeroValue = "expected %q to not be zero"
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)
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if s.Node.NodeName != framework.TestContext.NodeName {
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return fmt.Errorf("unexpected node name - %q", s.Node.NodeName)
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}
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if s.Node.CPU.UsageCoreNanoSeconds == nil {
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return fmt.Errorf(nonNilValue, "cpu instantaneous")
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}
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if *s.Node.CPU.UsageCoreNanoSeconds == 0 {
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return fmt.Errorf(nonZeroValue, "cpu instantaneous")
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}
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if s.Node.Memory.UsageBytes == nil {
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return fmt.Errorf(nonNilValue, "memory")
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}
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if *s.Node.Memory.UsageBytes == 0 {
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return fmt.Errorf(nonZeroValue, "memory")
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}
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if s.Node.Memory.WorkingSetBytes == nil {
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return fmt.Errorf(nonNilValue, "memory working set")
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}
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if *s.Node.Memory.WorkingSetBytes == 0 {
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return fmt.Errorf(nonZeroValue, "memory working set")
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}
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if s.Node.Fs.AvailableBytes == nil {
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return fmt.Errorf(nonNilValue, "memory working set")
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}
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if *s.Node.Fs.AvailableBytes == 0 {
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return fmt.Errorf(nonZeroValue, "node Fs available")
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}
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if s.Node.Fs.CapacityBytes == nil {
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return fmt.Errorf(nonNilValue, "node fs capacity")
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}
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if *s.Node.Fs.CapacityBytes == 0 {
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return fmt.Errorf(nonZeroValue, "node fs capacity")
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}
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if s.Node.Fs.UsedBytes == nil {
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return fmt.Errorf(nonNilValue, "node fs used")
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}
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if *s.Node.Fs.UsedBytes == 0 {
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return fmt.Errorf(nonZeroValue, "node fs used")
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}
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if s.Node.Runtime == nil {
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return fmt.Errorf(nonNilValue, "node runtime")
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}
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if s.Node.Runtime.ImageFs == nil {
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return fmt.Errorf(nonNilValue, "runtime image Fs")
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}
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if s.Node.Runtime.ImageFs.AvailableBytes == nil {
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return fmt.Errorf(nonNilValue, "runtime image Fs available")
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}
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if *s.Node.Runtime.ImageFs.AvailableBytes == 0 {
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return fmt.Errorf(nonZeroValue, "runtime image Fs available")
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}
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if s.Node.Runtime.ImageFs.CapacityBytes == nil {
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return fmt.Errorf(nonNilValue, "runtime image Fs capacity")
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}
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if *s.Node.Runtime.ImageFs.CapacityBytes == 0 {
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return fmt.Errorf(nonZeroValue, "runtime image Fs capacity")
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}
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if s.Node.Runtime.ImageFs.UsedBytes == nil {
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return fmt.Errorf(nonNilValue, "runtime image Fs usage")
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}
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if *s.Node.Runtime.ImageFs.UsedBytes == 0 {
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return fmt.Errorf(nonZeroValue, "runtime image Fs usage")
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}
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sysContainers := map[string]stats.ContainerStats{}
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for _, container := range s.Node.SystemContainers {
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sysContainers[container.Name] = container
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if err := expectContainerStatsNotEmpty(&container); err != nil {
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return err
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}
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}
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if _, exists := sysContainers["kubelet"]; !exists {
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return fmt.Errorf("expected metrics for kubelet")
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}
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if _, exists := sysContainers["runtime"]; !exists {
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return fmt.Errorf("expected metrics for runtime")
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}
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// Verify Pods Stats are present
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podsList := []string{}
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By("Having resources for pods")
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for _, pod := range s.Pods {
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if !strings.HasPrefix(pod.PodRef.Name, podNamePrefix) {
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// Ignore pods created outside this test
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continue
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}
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podsList = append(podsList, pod.PodRef.Name)
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if len(pod.Containers) != 1 {
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return fmt.Errorf("expected only one container")
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}
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container := pod.Containers[0]
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if container.Name != (pod.PodRef.Name + containerSuffix) {
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return fmt.Errorf("unexpected container name - %q", container.Name)
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}
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if err := expectContainerStatsNotEmpty(&container); err != nil {
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return err
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}
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// emptydir volume
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foundExpectedVolume := false
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for _, vs := range pod.VolumeStats {
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if *vs.CapacityBytes == 0 {
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return fmt.Errorf(nonZeroValue, "volume capacity")
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}
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if *vs.AvailableBytes == 0 {
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return fmt.Errorf(nonZeroValue, "volume available")
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}
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if *vs.UsedBytes == 0 {
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return fmt.Errorf(nonZeroValue, "volume used")
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}
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if vs.Name == "test-empty-dir" {
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foundExpectedVolume = true
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}
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}
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if !foundExpectedVolume {
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return fmt.Errorf("expected 'test-empty-dir' volume")
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}
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// fs usage (not for system containers)
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if container.Rootfs == nil {
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return fmt.Errorf(nonNilValue+" - "+spew.Sdump(container), "container root fs")
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}
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if container.Rootfs.AvailableBytes == nil {
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return fmt.Errorf(nonNilValue+" - "+spew.Sdump(container), "container root fs available")
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}
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if *container.Rootfs.AvailableBytes == 0 {
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return fmt.Errorf(nonZeroValue+" - "+spew.Sdump(container), "container root fs available")
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}
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if container.Rootfs.CapacityBytes == nil {
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return fmt.Errorf(nonNilValue+" - "+spew.Sdump(container), "container root fs capacity")
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}
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if *container.Rootfs.CapacityBytes == 0 {
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return fmt.Errorf(nonZeroValue+" - "+spew.Sdump(container), "container root fs capacity")
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}
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if container.Rootfs.UsedBytes == nil {
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return fmt.Errorf(nonNilValue+" - "+spew.Sdump(container), "container root fs usage")
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}
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if *container.Rootfs.UsedBytes == 0 {
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return fmt.Errorf(nonZeroValue+" - "+spew.Sdump(container), "container root fs usage")
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}
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if container.Logs == nil {
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return fmt.Errorf(nonNilValue+" - "+spew.Sdump(container), "container logs")
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}
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if container.Logs.AvailableBytes == nil {
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return fmt.Errorf(nonNilValue+" - "+spew.Sdump(container), "container logs available")
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}
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if *container.Logs.AvailableBytes == 0 {
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return fmt.Errorf(nonZeroValue+" - "+spew.Sdump(container), "container logs available")
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}
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if container.Logs.CapacityBytes == nil {
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return fmt.Errorf(nonNilValue+" - "+spew.Sdump(container), "container logs capacity")
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}
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if *container.Logs.CapacityBytes == 0 {
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return fmt.Errorf(nonZeroValue+" - "+spew.Sdump(container), "container logs capacity")
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}
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if container.Logs.UsedBytes == nil {
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return fmt.Errorf(nonNilValue+" - "+spew.Sdump(container), "container logs usage")
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}
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if *container.Logs.UsedBytes == 0 {
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return fmt.Errorf(nonZeroValue+" - "+spew.Sdump(container), "container logs usage")
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}
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}
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return nil
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}
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func expectContainerStatsNotEmpty(container *stats.ContainerStats) error {
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// TODO: Test Network
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if container.CPU == nil {
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return fmt.Errorf("expected container cpu to be not nil - %q", spew.Sdump(container))
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}
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if container.CPU.UsageCoreNanoSeconds == nil {
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return fmt.Errorf("expected container cpu instantaneous usage to be not nil - %q", spew.Sdump(container))
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}
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if *container.CPU.UsageCoreNanoSeconds == 0 {
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return fmt.Errorf("expected container cpu instantaneous usage to be non zero - %q", spew.Sdump(container))
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}
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if container.Memory == nil {
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return fmt.Errorf("expected container memory to be not nil - %q", spew.Sdump(container))
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}
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if container.Memory.UsageBytes == nil {
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return fmt.Errorf("expected container memory usage to be not nil - %q", spew.Sdump(container))
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}
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if *container.Memory.UsageBytes == 0 {
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return fmt.Errorf("expected container memory usage to be non zero - %q", spew.Sdump(container))
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}
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if container.Memory.WorkingSetBytes == nil {
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return fmt.Errorf("expected container memory working set to be not nil - %q", spew.Sdump(container))
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}
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if *container.Memory.WorkingSetBytes == 0 {
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return fmt.Errorf("expected container memory working set to be non zero - %q", spew.Sdump(container))
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}
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return nil
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}
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279
test/e2e_node/summary_test.go
Normal file
279
test/e2e_node/summary_test.go
Normal file
@ -0,0 +1,279 @@
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/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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||||||
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||||||
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http://www.apache.org/licenses/LICENSE-2.0
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|
Unless required by applicable law or agreed to in writing, software
|
||||||
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distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
See the License for the specific language governing permissions and
|
||||||
|
limitations under the License.
|
||||||
|
*/
|
||||||
|
|
||||||
|
package e2e_node
|
||||||
|
|
||||||
|
import (
|
||||||
|
"fmt"
|
||||||
|
"time"
|
||||||
|
|
||||||
|
"k8s.io/kubernetes/pkg/api"
|
||||||
|
"k8s.io/kubernetes/pkg/api/resource"
|
||||||
|
"k8s.io/kubernetes/pkg/kubelet/api/v1alpha1/stats"
|
||||||
|
"k8s.io/kubernetes/test/e2e/framework"
|
||||||
|
|
||||||
|
. "github.com/onsi/ginkgo"
|
||||||
|
. "github.com/onsi/gomega"
|
||||||
|
"github.com/onsi/gomega/gstruct"
|
||||||
|
"github.com/onsi/gomega/types"
|
||||||
|
)
|
||||||
|
|
||||||
|
// TODO(timstclair): Move this test out of the flaky suite once it has demonstrated stability.
|
||||||
|
var _ = framework.KubeDescribe("Summary API [Flaky]", func() {
|
||||||
|
f := framework.NewDefaultFramework("summary-test")
|
||||||
|
Context("when querying /stats/summary", func() {
|
||||||
|
It("should report resource usage through the stats api", func() {
|
||||||
|
const pod0 = "stats-busybox-0"
|
||||||
|
const pod1 = "stats-busybox-1"
|
||||||
|
|
||||||
|
By("Creating test pods")
|
||||||
|
createSummaryTestPods(f, pod0, pod1)
|
||||||
|
// Wait for cAdvisor to collect 2 stats points
|
||||||
|
time.Sleep(15 * time.Second)
|
||||||
|
|
||||||
|
// Setup expectations.
|
||||||
|
const (
|
||||||
|
kb = 1000
|
||||||
|
mb = 1000 * kb
|
||||||
|
gb = 1000 * mb
|
||||||
|
tb = 1000 * gb
|
||||||
|
|
||||||
|
maxStartAge = time.Hour * 24 * 365 // 1 year
|
||||||
|
maxStatsAge = time.Minute
|
||||||
|
)
|
||||||
|
fsCapacityBounds := bounded(100*mb, 100*gb)
|
||||||
|
// Expectations for system containers.
|
||||||
|
sysContExpectations := gstruct.MatchAllFields(gstruct.Fields{
|
||||||
|
"Name": gstruct.Ignore(),
|
||||||
|
"StartTime": recent(maxStartAge),
|
||||||
|
"CPU": ptrMatchAllFields(gstruct.Fields{
|
||||||
|
"Time": recent(maxStatsAge),
|
||||||
|
"UsageNanoCores": bounded(100000, 2E9),
|
||||||
|
"UsageCoreNanoSeconds": bounded(10000000, 1E15),
|
||||||
|
}),
|
||||||
|
"Memory": ptrMatchAllFields(gstruct.Fields{
|
||||||
|
"Time": recent(maxStatsAge),
|
||||||
|
// We don't limit system container memory.
|
||||||
|
"AvailableBytes": BeNil(),
|
||||||
|
"UsageBytes": bounded(5*mb, 1*gb),
|
||||||
|
"WorkingSetBytes": bounded(5*mb, 1*gb),
|
||||||
|
"RSSBytes": bounded(5*mb, 1*gb),
|
||||||
|
"PageFaults": bounded(1000, 1E9),
|
||||||
|
"MajorPageFaults": bounded(0, 100000),
|
||||||
|
}),
|
||||||
|
// TODO(#31999): Don't report FS stats for system containers.
|
||||||
|
"Rootfs": gstruct.Ignore(),
|
||||||
|
"Logs": gstruct.Ignore(),
|
||||||
|
"UserDefinedMetrics": BeEmpty(),
|
||||||
|
})
|
||||||
|
// Expectations for pods.
|
||||||
|
podExpectations := gstruct.MatchAllFields(gstruct.Fields{
|
||||||
|
"PodRef": gstruct.Ignore(),
|
||||||
|
"StartTime": recent(maxStartAge),
|
||||||
|
"Containers": gstruct.MatchAllElements(summaryObjectID, gstruct.Elements{
|
||||||
|
"busybox-container": gstruct.MatchAllFields(gstruct.Fields{
|
||||||
|
"Name": Equal("busybox-container"),
|
||||||
|
"StartTime": recent(maxStartAge),
|
||||||
|
"CPU": ptrMatchAllFields(gstruct.Fields{
|
||||||
|
"Time": recent(maxStatsAge),
|
||||||
|
"UsageNanoCores": bounded(100000, 100000000),
|
||||||
|
"UsageCoreNanoSeconds": bounded(10000000, 1000000000),
|
||||||
|
}),
|
||||||
|
"Memory": ptrMatchAllFields(gstruct.Fields{
|
||||||
|
"Time": recent(maxStatsAge),
|
||||||
|
"AvailableBytes": bounded(1*mb, 10*mb),
|
||||||
|
"UsageBytes": bounded(10*kb, mb),
|
||||||
|
"WorkingSetBytes": bounded(10*kb, mb),
|
||||||
|
"RSSBytes": bounded(1*kb, mb),
|
||||||
|
"PageFaults": bounded(100, 100000),
|
||||||
|
"MajorPageFaults": bounded(0, 10),
|
||||||
|
}),
|
||||||
|
"Rootfs": ptrMatchAllFields(gstruct.Fields{
|
||||||
|
"AvailableBytes": fsCapacityBounds,
|
||||||
|
"CapacityBytes": fsCapacityBounds,
|
||||||
|
"UsedBytes": bounded(kb, 10*mb),
|
||||||
|
"InodesFree": bounded(1E4, 1E8),
|
||||||
|
"Inodes": bounded(1E4, 1E8),
|
||||||
|
}),
|
||||||
|
"Logs": ptrMatchAllFields(gstruct.Fields{
|
||||||
|
"AvailableBytes": fsCapacityBounds,
|
||||||
|
"CapacityBytes": fsCapacityBounds,
|
||||||
|
"UsedBytes": bounded(kb, 10*mb),
|
||||||
|
"InodesFree": bounded(1E4, 1E8),
|
||||||
|
"Inodes": bounded(1E4, 1E8),
|
||||||
|
}),
|
||||||
|
"UserDefinedMetrics": BeEmpty(),
|
||||||
|
}),
|
||||||
|
}),
|
||||||
|
"Network": ptrMatchAllFields(gstruct.Fields{
|
||||||
|
"Time": recent(maxStatsAge),
|
||||||
|
"RxBytes": bounded(10, 10*mb),
|
||||||
|
"RxErrors": bounded(0, 1000),
|
||||||
|
"TxBytes": bounded(10, 10*mb),
|
||||||
|
"TxErrors": bounded(0, 1000),
|
||||||
|
}),
|
||||||
|
"VolumeStats": gstruct.MatchAllElements(summaryObjectID, gstruct.Elements{
|
||||||
|
"test-empty-dir": gstruct.MatchAllFields(gstruct.Fields{
|
||||||
|
"Name": Equal("test-empty-dir"),
|
||||||
|
"FsStats": gstruct.MatchAllFields(gstruct.Fields{
|
||||||
|
"AvailableBytes": fsCapacityBounds,
|
||||||
|
"CapacityBytes": fsCapacityBounds,
|
||||||
|
"UsedBytes": bounded(kb, 1*mb),
|
||||||
|
// Inodes are not reported for Volumes.
|
||||||
|
"InodesFree": BeNil(),
|
||||||
|
"Inodes": BeNil(),
|
||||||
|
}),
|
||||||
|
}),
|
||||||
|
}),
|
||||||
|
})
|
||||||
|
matchExpectations := ptrMatchAllFields(gstruct.Fields{
|
||||||
|
"Node": gstruct.MatchAllFields(gstruct.Fields{
|
||||||
|
"NodeName": Equal(framework.TestContext.NodeName),
|
||||||
|
"StartTime": recent(maxStartAge),
|
||||||
|
"SystemContainers": gstruct.MatchElements(summaryObjectID, gstruct.IgnoreExtras, gstruct.Elements{
|
||||||
|
"kubelet": sysContExpectations,
|
||||||
|
"runtime": sysContExpectations,
|
||||||
|
}),
|
||||||
|
"CPU": ptrMatchAllFields(gstruct.Fields{
|
||||||
|
"Time": recent(maxStatsAge),
|
||||||
|
"UsageNanoCores": bounded(100E3, 2E9),
|
||||||
|
"UsageCoreNanoSeconds": bounded(1E9, 1E15),
|
||||||
|
}),
|
||||||
|
"Memory": ptrMatchAllFields(gstruct.Fields{
|
||||||
|
"Time": recent(maxStatsAge),
|
||||||
|
"AvailableBytes": bounded(100*mb, 100*gb),
|
||||||
|
"UsageBytes": bounded(10*mb, 10*gb),
|
||||||
|
"WorkingSetBytes": bounded(10*mb, 10*gb),
|
||||||
|
"RSSBytes": bounded(1*kb, 1*gb),
|
||||||
|
"PageFaults": bounded(1000, 1E9),
|
||||||
|
"MajorPageFaults": bounded(0, 100000),
|
||||||
|
}),
|
||||||
|
// TODO(#28407): Handle non-eth0 network interface names.
|
||||||
|
"Network": Or(BeNil(), ptrMatchAllFields(gstruct.Fields{
|
||||||
|
"Time": recent(maxStatsAge),
|
||||||
|
"RxBytes": bounded(1*mb, 100*gb),
|
||||||
|
"RxErrors": bounded(0, 100000),
|
||||||
|
"TxBytes": bounded(10*kb, 10*gb),
|
||||||
|
"TxErrors": bounded(0, 100000),
|
||||||
|
})),
|
||||||
|
"Fs": ptrMatchAllFields(gstruct.Fields{
|
||||||
|
"AvailableBytes": fsCapacityBounds,
|
||||||
|
"CapacityBytes": fsCapacityBounds,
|
||||||
|
"UsedBytes": bounded(kb, 10*gb),
|
||||||
|
"InodesFree": bounded(1E4, 1E8),
|
||||||
|
"Inodes": bounded(1E4, 1E8),
|
||||||
|
}),
|
||||||
|
"Runtime": ptrMatchAllFields(gstruct.Fields{
|
||||||
|
"ImageFs": ptrMatchAllFields(gstruct.Fields{
|
||||||
|
"AvailableBytes": fsCapacityBounds,
|
||||||
|
"CapacityBytes": fsCapacityBounds,
|
||||||
|
"UsedBytes": bounded(kb, 10*gb),
|
||||||
|
"InodesFree": bounded(1E4, 1E8),
|
||||||
|
"Inodes": bounded(1E4, 1E8),
|
||||||
|
}),
|
||||||
|
}),
|
||||||
|
}),
|
||||||
|
// Ignore extra pods since the tests run in parallel.
|
||||||
|
"Pods": gstruct.MatchElements(summaryObjectID, gstruct.IgnoreExtras, gstruct.Elements{
|
||||||
|
fmt.Sprintf("%s::%s", f.Namespace.Name, pod0): podExpectations,
|
||||||
|
fmt.Sprintf("%s::%s", f.Namespace.Name, pod1): podExpectations,
|
||||||
|
}),
|
||||||
|
})
|
||||||
|
|
||||||
|
By("Validating /stats/summary")
|
||||||
|
// Give pods a minute to actually start up.
|
||||||
|
Eventually(getNodeSummary, 1*time.Minute, 15*time.Second).Should(matchExpectations)
|
||||||
|
// Then the summary should match the expectations a few more times.
|
||||||
|
Consistently(getNodeSummary, 30*time.Second, 15*time.Second).Should(matchExpectations)
|
||||||
|
})
|
||||||
|
})
|
||||||
|
})
|
||||||
|
|
||||||
|
func createSummaryTestPods(f *framework.Framework, names ...string) {
|
||||||
|
pods := make([]*api.Pod, 0, len(names))
|
||||||
|
for _, name := range names {
|
||||||
|
pods = append(pods, &api.Pod{
|
||||||
|
ObjectMeta: api.ObjectMeta{
|
||||||
|
Name: name,
|
||||||
|
},
|
||||||
|
Spec: api.PodSpec{
|
||||||
|
RestartPolicy: api.RestartPolicyAlways,
|
||||||
|
Containers: []api.Container{
|
||||||
|
{
|
||||||
|
Name: "busybox-container",
|
||||||
|
Image: "gcr.io/google_containers/busybox:1.24",
|
||||||
|
Command: []string{"sh", "-c", "ping -c 1 google.com; while true; do echo 'hello world' | tee /test-empty-dir-mnt/file ; sleep 1; done"},
|
||||||
|
Resources: api.ResourceRequirements{
|
||||||
|
Limits: api.ResourceList{
|
||||||
|
// Must set memory limit to get MemoryStats.AvailableBytes
|
||||||
|
api.ResourceMemory: resource.MustParse("10M"),
|
||||||
|
},
|
||||||
|
},
|
||||||
|
VolumeMounts: []api.VolumeMount{
|
||||||
|
{MountPath: "/test-empty-dir-mnt", Name: "test-empty-dir"},
|
||||||
|
},
|
||||||
|
},
|
||||||
|
},
|
||||||
|
SecurityContext: &api.PodSecurityContext{
|
||||||
|
SELinuxOptions: &api.SELinuxOptions{
|
||||||
|
Level: "s0",
|
||||||
|
},
|
||||||
|
},
|
||||||
|
Volumes: []api.Volume{
|
||||||
|
// TODO(#28393): Test secret volumes
|
||||||
|
// TODO(#28394): Test hostpath volumes
|
||||||
|
{Name: "test-empty-dir", VolumeSource: api.VolumeSource{EmptyDir: &api.EmptyDirVolumeSource{}}},
|
||||||
|
},
|
||||||
|
},
|
||||||
|
})
|
||||||
|
}
|
||||||
|
f.PodClient().CreateBatch(pods)
|
||||||
|
}
|
||||||
|
|
||||||
|
// Mapping function for gstruct.MatchAllElements
|
||||||
|
func summaryObjectID(element interface{}) string {
|
||||||
|
switch el := element.(type) {
|
||||||
|
case stats.PodStats:
|
||||||
|
return fmt.Sprintf("%s::%s", el.PodRef.Namespace, el.PodRef.Name)
|
||||||
|
case stats.ContainerStats:
|
||||||
|
return el.Name
|
||||||
|
case stats.VolumeStats:
|
||||||
|
return el.Name
|
||||||
|
case stats.UserDefinedMetric:
|
||||||
|
return el.Name
|
||||||
|
default:
|
||||||
|
framework.Failf("Unknown type: %T", el)
|
||||||
|
return "???"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Convenience functions for common matcher combinations.
|
||||||
|
func ptrMatchAllFields(fields gstruct.Fields) types.GomegaMatcher {
|
||||||
|
return gstruct.PointTo(gstruct.MatchAllFields(fields))
|
||||||
|
}
|
||||||
|
|
||||||
|
func bounded(lower, upper interface{}) types.GomegaMatcher {
|
||||||
|
return gstruct.PointTo(And(
|
||||||
|
BeNumerically(">=", lower),
|
||||||
|
BeNumerically("<=", upper)))
|
||||||
|
}
|
||||||
|
|
||||||
|
func recent(d time.Duration) types.GomegaMatcher {
|
||||||
|
return And(
|
||||||
|
BeTemporally(">=", time.Now().Add(-d)),
|
||||||
|
// Now() is the test start time, not the match time, so permit a few extra minutes.
|
||||||
|
BeTemporally("<", time.Now().Add(2*time.Minute)))
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue
Block a user