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121 lines
3.8 KiB
Go
121 lines
3.8 KiB
Go
/*
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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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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.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package e2e_node
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import (
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"k8s.io/kubernetes/pkg/api/v1"
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metav1 "k8s.io/kubernetes/pkg/apis/meta/v1"
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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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)
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var _ = framework.KubeDescribe("ContainerLogPath", func() {
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f := framework.NewDefaultFramework("kubelet-container-log-path")
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Describe("Pod with a container", func() {
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Context("printed log to stdout", func() {
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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: v1.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: "gcr.io/google_containers/busybox:1.24",
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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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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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checkPod := &v1.Pod{
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ObjectMeta: v1.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: "gcr.io/google_containers/busybox:1.24",
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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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},
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},
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},
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},
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},
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}
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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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})
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})
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})
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})
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