mirror of
https://github.com/ceph/ceph-csi.git
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323 lines
8.9 KiB
Go
323 lines
8.9 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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"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/test/e2e/framework"
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imageutils "k8s.io/kubernetes/test/utils/image"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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)
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// These tests exercise the Kubernetes expansion syntax $(VAR).
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// For more information, see:
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// https://github.com/kubernetes/community/blob/master/contributors/design-proposals/node/expansion.md
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var _ = framework.KubeDescribe("Variable Expansion", func() {
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f := framework.NewDefaultFramework("var-expansion")
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/*
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Release : v1.9
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Testname: Environment variables, expansion
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Description: Create a Pod with environment variables. Environment variables defined using previously defined environment variables MUST expand to proper values.
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*/
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framework.ConformanceIt("should allow composing env vars into new env vars [NodeConformance]", func() {
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podName := "var-expansion-" + string(uuid.NewUUID())
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pod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: podName,
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Labels: map[string]string{"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: "dapi-container",
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Image: imageutils.GetE2EImage(imageutils.BusyBox),
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Command: []string{"sh", "-c", "env"},
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Env: []v1.EnvVar{
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{
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Name: "FOO",
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Value: "foo-value",
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},
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{
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Name: "BAR",
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Value: "bar-value",
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},
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{
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Name: "FOOBAR",
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Value: "$(FOO);;$(BAR)",
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},
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},
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},
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},
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RestartPolicy: v1.RestartPolicyNever,
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},
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}
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f.TestContainerOutput("env composition", pod, 0, []string{
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"FOO=foo-value",
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"BAR=bar-value",
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"FOOBAR=foo-value;;bar-value",
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})
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})
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/*
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Release : v1.9
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Testname: Environment variables, command expansion
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Description: Create a Pod with environment variables and container command using them. Container command using the defined environment variables MUST expand to proper values.
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*/
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framework.ConformanceIt("should allow substituting values in a container's command [NodeConformance]", func() {
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podName := "var-expansion-" + string(uuid.NewUUID())
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pod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: podName,
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Labels: map[string]string{"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: "dapi-container",
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Image: imageutils.GetE2EImage(imageutils.BusyBox),
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Command: []string{"sh", "-c", "TEST_VAR=wrong echo \"$(TEST_VAR)\""},
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Env: []v1.EnvVar{
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{
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Name: "TEST_VAR",
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Value: "test-value",
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},
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},
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},
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},
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RestartPolicy: v1.RestartPolicyNever,
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},
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}
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f.TestContainerOutput("substitution in container's command", pod, 0, []string{
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"test-value",
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})
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})
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/*
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Release : v1.9
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Testname: Environment variables, command argument expansion
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Description: Create a Pod with environment variables and container command arguments using them. Container command arguments using the defined environment variables MUST expand to proper values.
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*/
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framework.ConformanceIt("should allow substituting values in a container's args [NodeConformance]", func() {
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podName := "var-expansion-" + string(uuid.NewUUID())
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pod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: podName,
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Labels: map[string]string{"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: "dapi-container",
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Image: imageutils.GetE2EImage(imageutils.BusyBox),
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Command: []string{"sh", "-c"},
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Args: []string{"TEST_VAR=wrong echo \"$(TEST_VAR)\""},
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Env: []v1.EnvVar{
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{
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Name: "TEST_VAR",
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Value: "test-value",
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},
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},
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},
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},
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RestartPolicy: v1.RestartPolicyNever,
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},
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}
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f.TestContainerOutput("substitution in container's args", pod, 0, []string{
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"test-value",
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})
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})
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/*
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Testname: var-expansion-subpath
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Description: Make sure a container's subpath can be set using an
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expansion of environment variables.
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*/
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It("should allow substituting values in a volume subpath [Feature:VolumeSubpathEnvExpansion][NodeAlphaFeature:VolumeSubpathEnvExpansion]", func() {
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podName := "var-expansion-" + string(uuid.NewUUID())
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pod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: podName,
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Labels: map[string]string{"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: "dapi-container",
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Image: imageutils.GetE2EImage(imageutils.BusyBox),
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Command: []string{"sh", "-c", "test -d /testcontainer/" + podName + ";echo $?"},
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Env: []v1.EnvVar{
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{
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Name: "POD_NAME",
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Value: podName,
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},
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},
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VolumeMounts: []v1.VolumeMount{
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{
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Name: "workdir1",
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MountPath: "/logscontainer",
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SubPath: "$(POD_NAME)",
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},
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{
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Name: "workdir2",
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MountPath: "/testcontainer",
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},
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},
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},
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},
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RestartPolicy: v1.RestartPolicyNever,
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Volumes: []v1.Volume{
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{
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Name: "workdir1",
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VolumeSource: v1.VolumeSource{
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HostPath: &v1.HostPathVolumeSource{Path: "/tmp"},
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},
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},
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{
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Name: "workdir2",
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VolumeSource: v1.VolumeSource{
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HostPath: &v1.HostPathVolumeSource{Path: "/tmp"},
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},
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},
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},
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},
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}
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f.TestContainerOutput("substitution in volume subpath", pod, 0, []string{
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"0",
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})
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})
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/*
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Testname: var-expansion-subpath-with-backticks
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Description: Make sure a container's subpath can not be set using an
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expansion of environment variables when backticks are supplied.
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*/
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It("should fail substituting values in a volume subpath with backticks [Feature:VolumeSubpathEnvExpansion][NodeAlphaFeature:VolumeSubpathEnvExpansion][Slow]", func() {
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podName := "var-expansion-" + string(uuid.NewUUID())
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pod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: podName,
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Labels: map[string]string{"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: "dapi-container",
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Image: imageutils.GetE2EImage(imageutils.BusyBox),
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Env: []v1.EnvVar{
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{
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Name: "POD_NAME",
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Value: "..",
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},
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},
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VolumeMounts: []v1.VolumeMount{
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{
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Name: "workdir1",
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MountPath: "/logscontainer",
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SubPath: "$(POD_NAME)",
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},
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},
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},
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},
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RestartPolicy: v1.RestartPolicyNever,
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Volumes: []v1.Volume{
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{
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Name: "workdir1",
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VolumeSource: v1.VolumeSource{
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EmptyDir: &v1.EmptyDirVolumeSource{},
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},
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},
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},
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},
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}
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// Pod should fail
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testPodFailSubpath(f, pod)
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})
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/*
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Testname: var-expansion-subpath-with-absolute-path
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Description: Make sure a container's subpath can not be set using an
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expansion of environment variables when absolute path is supplied.
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*/
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It("should fail substituting values in a volume subpath with absolute path [Feature:VolumeSubpathEnvExpansion][NodeAlphaFeature:VolumeSubpathEnvExpansion][Slow]", func() {
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podName := "var-expansion-" + string(uuid.NewUUID())
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pod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: podName,
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Labels: map[string]string{"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: "dapi-container",
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Image: imageutils.GetE2EImage(imageutils.BusyBox),
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Env: []v1.EnvVar{
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{
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Name: "POD_NAME",
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Value: "/tmp",
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},
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},
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VolumeMounts: []v1.VolumeMount{
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{
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Name: "workdir1",
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MountPath: "/logscontainer",
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SubPath: "$(POD_NAME)",
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},
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},
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},
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},
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RestartPolicy: v1.RestartPolicyNever,
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Volumes: []v1.Volume{
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{
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Name: "workdir1",
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VolumeSource: v1.VolumeSource{
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EmptyDir: &v1.EmptyDirVolumeSource{},
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},
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},
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},
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},
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}
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// Pod should fail
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testPodFailSubpath(f, pod)
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})
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})
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func testPodFailSubpath(f *framework.Framework, pod *v1.Pod) {
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pod, err := f.ClientSet.CoreV1().Pods(f.Namespace.Name).Create(pod)
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Expect(err).ToNot(HaveOccurred(), "while creating pod")
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defer func() {
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framework.DeletePodWithWait(f, f.ClientSet, pod)
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}()
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err = framework.WaitTimeoutForPodRunningInNamespace(f.ClientSet, pod.Name, pod.Namespace, framework.PodStartShortTimeout)
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Expect(err).To(HaveOccurred(), "while waiting for pod to be running")
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}
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