39bb841827
The following tests are not tagged because they are not really run in
node e2e suites:
* A subset of host path tests that required SSH access
- should evaluate whether the tests should be moved to test/e2e_node
* GCP volume tests
- should evaluate whether these tests should be moved out of the
common directly since they are not shared with the node e2e suite.
269 lines
7.8 KiB
Go
269 lines
7.8 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 common
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import (
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"fmt"
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"os"
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"path"
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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/kubernetes/test/e2e/framework"
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. "github.com/onsi/ginkgo"
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)
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//TODO : Consolidate this code with the code for emptyDir.
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//This will require some smart.
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var _ = Describe("[sig-storage] HostPath", func() {
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f := framework.NewDefaultFramework("hostpath")
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BeforeEach(func() {
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// TODO permission denied cleanup failures
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//cleanup before running the test.
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_ = os.Remove("/tmp/test-file")
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})
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/*
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Testname: volume-hostpath-mode
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Description: For a Pod created with a 'HostPath' Volume, ensure the
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volume is a directory with 0777 unix file permissions and that is has
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the sticky bit (mode flag t) set.
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*/
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framework.ConformanceIt("should give a volume the correct mode [NodeConformance]", func() {
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source := &v1.HostPathVolumeSource{
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Path: "/tmp",
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}
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pod := testPodWithHostVol(volumePath, source)
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pod.Spec.Containers[0].Args = []string{
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fmt.Sprintf("--fs_type=%v", volumePath),
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fmt.Sprintf("--file_mode=%v", volumePath),
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}
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f.TestContainerOutput("hostPath mode", pod, 0, []string{
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"mode of file \"/test-volume\": dtrwxrwx", // we expect the sticky bit (mode flag t) to be set for the dir
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})
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})
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// This test requires mounting a folder into a container with write privileges.
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It("should support r/w [NodeConformance]", func() {
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filePath := path.Join(volumePath, "test-file")
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retryDuration := 180
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source := &v1.HostPathVolumeSource{
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Path: "/tmp",
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}
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pod := testPodWithHostVol(volumePath, source)
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pod.Spec.Containers[0].Args = []string{
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fmt.Sprintf("--new_file_0644=%v", filePath),
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fmt.Sprintf("--file_mode=%v", filePath),
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}
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pod.Spec.Containers[1].Args = []string{
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fmt.Sprintf("--file_content_in_loop=%v", filePath),
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fmt.Sprintf("--retry_time=%d", retryDuration),
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}
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//Read the content of the file with the second container to
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//verify volumes being shared properly among containers within the pod.
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f.TestContainerOutput("hostPath r/w", pod, 1, []string{
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"content of file \"/test-volume/test-file\": mount-tester new file",
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})
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})
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It("should support subPath [NodeConformance]", func() {
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subPath := "sub-path"
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fileName := "test-file"
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retryDuration := 180
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filePathInWriter := path.Join(volumePath, fileName)
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filePathInReader := path.Join(volumePath, subPath, fileName)
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source := &v1.HostPathVolumeSource{
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Path: "/tmp",
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}
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pod := testPodWithHostVol(volumePath, source)
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// Write the file in the subPath from container 0
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container := &pod.Spec.Containers[0]
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container.VolumeMounts[0].SubPath = subPath
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container.Args = []string{
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fmt.Sprintf("--new_file_0644=%v", filePathInWriter),
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fmt.Sprintf("--file_mode=%v", filePathInWriter),
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}
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// Read it from outside the subPath from container 1
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pod.Spec.Containers[1].Args = []string{
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fmt.Sprintf("--file_content_in_loop=%v", filePathInReader),
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fmt.Sprintf("--retry_time=%d", retryDuration),
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}
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f.TestContainerOutput("hostPath subPath", pod, 1, []string{
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"content of file \"" + filePathInReader + "\": mount-tester new file",
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})
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})
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It("should support existing directory subPath", func() {
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framework.SkipUnlessSSHKeyPresent()
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subPath := "sub-path"
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fileName := "test-file"
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retryDuration := 180
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filePathInWriter := path.Join(volumePath, fileName)
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filePathInReader := path.Join(volumePath, subPath, fileName)
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source := &v1.HostPathVolumeSource{
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Path: "/tmp",
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}
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pod := testPodWithHostVol(volumePath, source)
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nodeList := framework.GetReadySchedulableNodesOrDie(f.ClientSet)
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pod.Spec.NodeName = nodeList.Items[0].Name
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// Create the subPath directory on the host
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existing := path.Join(source.Path, subPath)
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result, err := framework.SSH(fmt.Sprintf("mkdir -p %s", existing), framework.GetNodeExternalIP(&nodeList.Items[0]), framework.TestContext.Provider)
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framework.LogSSHResult(result)
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framework.ExpectNoError(err)
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if result.Code != 0 {
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framework.Failf("mkdir returned non-zero")
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}
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// Write the file in the subPath from container 0
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container := &pod.Spec.Containers[0]
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container.VolumeMounts[0].SubPath = subPath
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container.Args = []string{
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fmt.Sprintf("--new_file_0644=%v", filePathInWriter),
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fmt.Sprintf("--file_mode=%v", filePathInWriter),
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}
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// Read it from outside the subPath from container 1
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pod.Spec.Containers[1].Args = []string{
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fmt.Sprintf("--file_content_in_loop=%v", filePathInReader),
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fmt.Sprintf("--retry_time=%d", retryDuration),
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}
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f.TestContainerOutput("hostPath subPath", pod, 1, []string{
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"content of file \"" + filePathInReader + "\": mount-tester new file",
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})
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})
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// TODO consolidate common code of this test and above
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It("should support existing single file subPath", func() {
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framework.SkipUnlessSSHKeyPresent()
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subPath := "sub-path-test-file"
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retryDuration := 180
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filePathInReader := path.Join(volumePath, subPath)
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source := &v1.HostPathVolumeSource{
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Path: "/tmp",
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}
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pod := testPodWithHostVol(volumePath, source)
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nodeList := framework.GetReadySchedulableNodesOrDie(f.ClientSet)
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pod.Spec.NodeName = nodeList.Items[0].Name
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// Create the subPath file on the host
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existing := path.Join(source.Path, subPath)
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result, err := framework.SSH(fmt.Sprintf("echo \"mount-tester new file\" > %s", existing), framework.GetNodeExternalIP(&nodeList.Items[0]), framework.TestContext.Provider)
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framework.LogSSHResult(result)
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framework.ExpectNoError(err)
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if result.Code != 0 {
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framework.Failf("echo returned non-zero")
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}
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// Mount the file to the subPath in container 0
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container := &pod.Spec.Containers[0]
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container.VolumeMounts[0].SubPath = subPath
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// Read it from outside the subPath from container 1
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pod.Spec.Containers[1].Args = []string{
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fmt.Sprintf("--file_content_in_loop=%v", filePathInReader),
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fmt.Sprintf("--retry_time=%d", retryDuration),
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}
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f.TestContainerOutput("hostPath subPath", pod, 1, []string{
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"content of file \"" + filePathInReader + "\": mount-tester new file",
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})
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})
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})
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//These constants are borrowed from the other test.
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//const volumeName = "test-volume"
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const containerName1 = "test-container-1"
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const containerName2 = "test-container-2"
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func mount(source *v1.HostPathVolumeSource) []v1.Volume {
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return []v1.Volume{
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{
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Name: volumeName,
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VolumeSource: v1.VolumeSource{
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HostPath: source,
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},
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},
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}
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}
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//TODO: To merge this with the emptyDir tests, we can make source a lambda.
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func testPodWithHostVol(path string, source *v1.HostPathVolumeSource) *v1.Pod {
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podName := "pod-host-path-test"
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privileged := true
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return &v1.Pod{
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TypeMeta: metav1.TypeMeta{
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Kind: "Pod",
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APIVersion: "v1",
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},
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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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Containers: []v1.Container{
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{
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Name: containerName1,
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Image: mountImage,
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VolumeMounts: []v1.VolumeMount{
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{
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Name: volumeName,
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MountPath: path,
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},
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},
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SecurityContext: &v1.SecurityContext{
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Privileged: &privileged,
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},
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},
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{
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Name: containerName2,
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Image: mountImage,
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VolumeMounts: []v1.VolumeMount{
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{
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Name: volumeName,
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MountPath: path,
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},
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},
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SecurityContext: &v1.SecurityContext{
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Privileged: &privileged,
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},
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},
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},
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RestartPolicy: v1.RestartPolicyNever,
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Volumes: mount(source),
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},
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}
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}
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