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Merge pull request #71892 from fatsheep9146/log_path_test
add test for CRI log path
This commit is contained in:
Kubernetes Prow Robot
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commit
dced58dca9
@ -17,28 +17,94 @@ limitations under the License.
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package e2e_node
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import (
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. "github.com/onsi/ginkgo"
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"k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/util/uuid"
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"k8s.io/kubernetes/pkg/kubelet"
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kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
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"k8s.io/kubernetes/test/e2e/framework"
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. "github.com/onsi/ginkgo"
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)
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const (
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logString = "This is the expected log content of this node e2e test"
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logPodName = "logger-pod"
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logContName = "logger-container"
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checkPodName = "checker-pod"
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checkContName = "checker-container"
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logString = "This is the expected log content of this node e2e test"
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logContainerName = "logger"
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)
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var _ = framework.KubeDescribe("ContainerLogPath [NodeConformance]", func() {
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f := framework.NewDefaultFramework("kubelet-container-log-path")
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var podClient *framework.PodClient
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Describe("Pod with a container", func() {
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Context("printed log to stdout", func() {
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makeLogPod := func(podName, log string) *v1.Pod {
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return &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: podName,
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},
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Spec: v1.PodSpec{
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// this pod is expected to exit successfully
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RestartPolicy: v1.RestartPolicyNever,
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Containers: []v1.Container{
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{
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Image: busyboxImage,
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Name: logContainerName,
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Command: []string{"sh", "-c", "echo " + log},
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},
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},
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},
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}
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}
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makeLogCheckPod := func(podName, log, expectedLogPath string) *v1.Pod {
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hostPathType := new(v1.HostPathType)
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*hostPathType = v1.HostPathType(string(v1.HostPathFileOrCreate))
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return &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: podName,
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},
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Spec: v1.PodSpec{
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// this pod is expected to exit successfully
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RestartPolicy: v1.RestartPolicyNever,
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Containers: []v1.Container{
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{
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Image: busyboxImage,
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Name: podName,
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// If we find expected log file and contains right content, exit 0
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// else, keep checking until test timeout
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Command: []string{"sh", "-c", "while true; do if [ -e " + expectedLogPath + " ] && grep -q " + log + " " + expectedLogPath + "; then exit 0; fi; sleep 1; done"},
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VolumeMounts: []v1.VolumeMount{
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{
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Name: "logdir",
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// mount ContainerLogsDir to the same path in container
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MountPath: expectedLogPath,
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ReadOnly: true,
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},
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},
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},
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},
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Volumes: []v1.Volume{
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{
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Name: "logdir",
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VolumeSource: v1.VolumeSource{
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HostPath: &v1.HostPathVolumeSource{
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Path: expectedLogPath,
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Type: hostPathType,
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},
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},
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},
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},
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},
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}
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}
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createAndWaitPod := func(pod *v1.Pod) error {
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podClient.Create(pod)
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return framework.WaitForPodSuccessInNamespace(f.ClientSet, pod.Name, f.Namespace.Name)
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}
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var logPodName string
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BeforeEach(func() {
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if framework.TestContext.ContainerRuntime == "docker" {
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// Container Log Path support requires JSON logging driver.
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@ -62,86 +128,43 @@ var _ = framework.KubeDescribe("ContainerLogPath [NodeConformance]", func() {
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framework.Skipf("Skipping because Docker daemon is running with SELinux support enabled")
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}
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}
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podClient = f.PodClient()
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logPodName = "log-pod-" + string(uuid.NewUUID())
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err := createAndWaitPod(makeLogPod(logPodName, logString))
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framework.ExpectNoError(err, "Failed waiting for pod: %s to enter success state", logPodName)
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})
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It("should print log to correct log path", func() {
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podClient := f.PodClient()
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ns := f.Namespace.Name
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logDirVolumeName := "log-dir-vol"
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logDir := kubelet.ContainerLogsDir
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logPod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: logPodName,
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},
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Spec: v1.PodSpec{
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// this pod is expected to exit successfully
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RestartPolicy: v1.RestartPolicyNever,
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Containers: []v1.Container{
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{
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Image: busyboxImage,
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Name: logContName,
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Command: []string{"sh", "-c", "echo " + logString},
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},
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},
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},
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}
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podClient.Create(logPod)
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err := framework.WaitForPodSuccessInNamespace(f.ClientSet, logPodName, ns)
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framework.ExpectNoError(err, "Failed waiting for pod: %s to enter success state", logPodName)
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// get containerID from created Pod
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createdLogPod, err := podClient.Get(logPodName, metav1.GetOptions{})
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logConID := kubecontainer.ParseContainerID(createdLogPod.Status.ContainerStatuses[0].ContainerID)
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logContainerID := kubecontainer.ParseContainerID(createdLogPod.Status.ContainerStatuses[0].ContainerID)
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framework.ExpectNoError(err, "Failed to get pod: %s", logPodName)
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expectedlogFile := logDir + "/" + logPodName + "_" + ns + "_" + logContName + "-" + logConID.ID + ".log"
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// build log file path
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expectedlogFile := logDir + "/" + logPodName + "_" + f.Namespace.Name + "_" + logContainerName + "-" + logContainerID.ID + ".log"
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hostPathType := new(v1.HostPathType)
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*hostPathType = v1.HostPathType(string(v1.HostPathFileOrCreate))
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logCheckPodName := "log-check-" + string(uuid.NewUUID())
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err = createAndWaitPod(makeLogCheckPod(logCheckPodName, logString, expectedlogFile))
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framework.ExpectNoError(err, "Failed waiting for pod: %s to enter success state", logCheckPodName)
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})
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checkPod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: checkPodName,
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},
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Spec: v1.PodSpec{
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// this pod is expected to exit successfully
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RestartPolicy: v1.RestartPolicyNever,
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Containers: []v1.Container{
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{
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Image: busyboxImage,
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Name: checkContName,
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// If we find expected log file and contains right content, exit 0
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// else, keep checking until test timeout
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Command: []string{"sh", "-c", "while true; do if [ -e " + expectedlogFile + " ] && grep -q " + logString + " " + expectedlogFile + "; then exit 0; fi; sleep 1; done"},
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VolumeMounts: []v1.VolumeMount{
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{
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Name: logDirVolumeName,
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// mount ContainerLogsDir to the same path in container
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MountPath: expectedlogFile,
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ReadOnly: true,
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},
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},
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},
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},
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Volumes: []v1.Volume{
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{
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Name: logDirVolumeName,
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VolumeSource: v1.VolumeSource{
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HostPath: &v1.HostPathVolumeSource{
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Path: expectedlogFile,
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Type: hostPathType,
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},
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},
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},
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},
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},
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}
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It("should print log to correct cri log path", func() {
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podClient.Create(checkPod)
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err = framework.WaitForPodSuccessInNamespace(f.ClientSet, checkPodName, ns)
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framework.ExpectNoError(err, "Failed waiting for pod: %s to enter success state", checkPodName)
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logCRIDir := "/var/log/pods"
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// get podID from created Pod
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createdLogPod, err := podClient.Get(logPodName, metav1.GetOptions{})
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podID := string(createdLogPod.UID)
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// build log cri file path
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expectedCRILogFile := logCRIDir + "/" + podID + "/" + logContainerName + "/0.log"
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logCRICheckPodName := "log-cri-check-" + string(uuid.NewUUID())
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err = createAndWaitPod(makeLogCheckPod(logCRICheckPodName, logString, expectedCRILogFile))
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framework.ExpectNoError(err, "Failed waiting for pod: %s to enter success state", logCRICheckPodName)
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})
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})
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})
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