680 lines
21 KiB
Go
680 lines
21 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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"time"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/kubernetes/pkg/api/v1"
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"k8s.io/kubernetes/pkg/util/uuid"
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"k8s.io/kubernetes/test/e2e/framework"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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)
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var _ = framework.KubeDescribe("ConfigMap", func() {
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f := framework.NewDefaultFramework("configmap")
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It("should be consumable from pods in volume [Conformance] [Volume]", func() {
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doConfigMapE2EWithoutMappings(f, 0, 0, nil)
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})
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It("should be consumable from pods in volume with defaultMode set [Conformance] [Volume]", func() {
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defaultMode := int32(0400)
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doConfigMapE2EWithoutMappings(f, 0, 0, &defaultMode)
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})
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It("should be consumable from pods in volume as non-root with defaultMode and fsGroup set [Feature:FSGroup] [Volume]", func() {
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defaultMode := int32(0440) /* setting fsGroup sets mode to at least 440 */
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doConfigMapE2EWithoutMappings(f, 1000, 1001, &defaultMode)
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})
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It("should be consumable from pods in volume as non-root [Conformance] [Volume]", func() {
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doConfigMapE2EWithoutMappings(f, 1000, 0, nil)
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})
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It("should be consumable from pods in volume as non-root with FSGroup [Feature:FSGroup] [Volume]", func() {
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doConfigMapE2EWithoutMappings(f, 1000, 1001, nil)
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})
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It("should be consumable from pods in volume with mappings [Conformance] [Volume]", func() {
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doConfigMapE2EWithMappings(f, 0, 0, nil)
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})
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It("should be consumable from pods in volume with mappings and Item mode set[Conformance] [Volume]", func() {
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mode := int32(0400)
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doConfigMapE2EWithMappings(f, 0, 0, &mode)
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})
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It("should be consumable from pods in volume with mappings as non-root [Conformance] [Volume]", func() {
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doConfigMapE2EWithMappings(f, 1000, 0, nil)
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})
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It("should be consumable from pods in volume with mappings as non-root with FSGroup [Feature:FSGroup] [Volume]", func() {
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doConfigMapE2EWithMappings(f, 1000, 1001, nil)
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})
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It("updates should be reflected in volume [Conformance] [Volume]", func() {
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// We may have to wait or a full sync period to elapse before the
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// Kubelet projects the update into the volume and the container picks
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// it up. This timeout is based on the default Kubelet sync period (1
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// minute) plus additional time for fudge factor.
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const podLogTimeout = 300 * time.Second
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name := "configmap-test-upd-" + string(uuid.NewUUID())
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volumeName := "configmap-volume"
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volumeMountPath := "/etc/configmap-volume"
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containerName := "configmap-volume-test"
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configMap := &v1.ConfigMap{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: f.Namespace.Name,
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Name: name,
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},
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Data: map[string]string{
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"data-1": "value-1",
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},
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}
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By(fmt.Sprintf("Creating configMap with name %s", configMap.Name))
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var err error
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if configMap, err = f.ClientSet.Core().ConfigMaps(f.Namespace.Name).Create(configMap); err != nil {
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framework.Failf("unable to create test configMap %s: %v", configMap.Name, err)
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}
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pod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "pod-configmaps-" + string(uuid.NewUUID()),
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},
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Spec: v1.PodSpec{
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Volumes: []v1.Volume{
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{
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Name: volumeName,
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VolumeSource: v1.VolumeSource{
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ConfigMap: &v1.ConfigMapVolumeSource{
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LocalObjectReference: v1.LocalObjectReference{
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Name: name,
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},
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},
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},
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},
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},
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Containers: []v1.Container{
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{
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Name: containerName,
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Image: "gcr.io/google_containers/mounttest:0.7",
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Command: []string{"/mt", "--break_on_expected_content=false", "--retry_time=120", "--file_content_in_loop=/etc/configmap-volume/data-1"},
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VolumeMounts: []v1.VolumeMount{
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{
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Name: volumeName,
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MountPath: volumeMountPath,
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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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RestartPolicy: v1.RestartPolicyNever,
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},
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}
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By("Creating the pod")
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f.PodClient().CreateSync(pod)
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pollLogs := func() (string, error) {
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return framework.GetPodLogs(f.ClientSet, f.Namespace.Name, pod.Name, containerName)
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}
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Eventually(pollLogs, podLogTimeout, framework.Poll).Should(ContainSubstring("value-1"))
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By(fmt.Sprintf("Updating configmap %v", configMap.Name))
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configMap.ResourceVersion = "" // to force update
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configMap.Data["data-1"] = "value-2"
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_, err = f.ClientSet.Core().ConfigMaps(f.Namespace.Name).Update(configMap)
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Expect(err).NotTo(HaveOccurred(), "Failed to update configmap %q in namespace %q", configMap.Name, f.Namespace.Name)
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By("waiting to observe update in volume")
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Eventually(pollLogs, podLogTimeout, framework.Poll).Should(ContainSubstring("value-2"))
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})
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It("optional updates should be reflected in volume [Conformance] [Volume]", func() {
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// We may have to wait or a full sync period to elapse before the
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// Kubelet projects the update into the volume and the container picks
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// it up. This timeout is based on the default Kubelet sync period (1
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// minute) plus additional time for fudge factor.
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const podLogTimeout = 300 * time.Second
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trueVal := true
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volumeMountPath := "/etc/configmap-volumes"
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deleteName := "cm-test-opt-del-" + string(uuid.NewUUID())
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deleteContainerName := "delcm-volume-test"
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deleteVolumeName := "deletecm-volume"
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deleteConfigMap := &v1.ConfigMap{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: f.Namespace.Name,
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Name: deleteName,
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},
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Data: map[string]string{
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"data-1": "value-1",
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},
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}
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updateName := "cm-test-opt-upd-" + string(uuid.NewUUID())
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updateContainerName := "updcm-volume-test"
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updateVolumeName := "updatecm-volume"
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updateConfigMap := &v1.ConfigMap{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: f.Namespace.Name,
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Name: updateName,
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},
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Data: map[string]string{
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"data-1": "value-1",
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},
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}
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createName := "cm-test-opt-create-" + string(uuid.NewUUID())
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createContainerName := "createcm-volume-test"
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createVolumeName := "createcm-volume"
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createConfigMap := &v1.ConfigMap{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: f.Namespace.Name,
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Name: createName,
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},
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Data: map[string]string{
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"data-1": "value-1",
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},
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}
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By(fmt.Sprintf("Creating configMap with name %s", deleteConfigMap.Name))
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var err error
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if deleteConfigMap, err = f.ClientSet.Core().ConfigMaps(f.Namespace.Name).Create(deleteConfigMap); err != nil {
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framework.Failf("unable to create test configMap %s: %v", deleteConfigMap.Name, err)
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}
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By(fmt.Sprintf("Creating configMap with name %s", updateConfigMap.Name))
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if updateConfigMap, err = f.ClientSet.Core().ConfigMaps(f.Namespace.Name).Create(updateConfigMap); err != nil {
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framework.Failf("unable to create test configMap %s: %v", updateConfigMap.Name, err)
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}
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pod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "pod-configmaps-" + string(uuid.NewUUID()),
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},
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Spec: v1.PodSpec{
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Volumes: []v1.Volume{
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{
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Name: deleteVolumeName,
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VolumeSource: v1.VolumeSource{
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ConfigMap: &v1.ConfigMapVolumeSource{
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LocalObjectReference: v1.LocalObjectReference{
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Name: deleteName,
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},
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Optional: &trueVal,
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},
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},
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},
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{
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Name: updateVolumeName,
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VolumeSource: v1.VolumeSource{
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ConfigMap: &v1.ConfigMapVolumeSource{
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LocalObjectReference: v1.LocalObjectReference{
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Name: updateName,
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},
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Optional: &trueVal,
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},
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},
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},
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{
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Name: createVolumeName,
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VolumeSource: v1.VolumeSource{
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ConfigMap: &v1.ConfigMapVolumeSource{
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LocalObjectReference: v1.LocalObjectReference{
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Name: createName,
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},
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Optional: &trueVal,
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},
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},
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},
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},
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Containers: []v1.Container{
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{
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Name: deleteContainerName,
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Image: "gcr.io/google_containers/mounttest:0.7",
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Command: []string{"/mt", "--break_on_expected_content=false", "--retry_time=120", "--file_content_in_loop=/etc/configmap-volumes/delete/data-1"},
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VolumeMounts: []v1.VolumeMount{
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{
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Name: deleteVolumeName,
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MountPath: path.Join(volumeMountPath, "delete"),
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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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Name: updateContainerName,
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Image: "gcr.io/google_containers/mounttest:0.7",
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Command: []string{"/mt", "--break_on_expected_content=false", "--retry_time=120", "--file_content_in_loop=/etc/configmap-volumes/update/data-3"},
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VolumeMounts: []v1.VolumeMount{
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{
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Name: updateVolumeName,
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MountPath: path.Join(volumeMountPath, "update"),
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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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Name: createContainerName,
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Image: "gcr.io/google_containers/mounttest:0.7",
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Command: []string{"/mt", "--break_on_expected_content=false", "--retry_time=120", "--file_content_in_loop=/etc/configmap-volumes/create/data-1"},
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VolumeMounts: []v1.VolumeMount{
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{
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Name: createVolumeName,
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MountPath: path.Join(volumeMountPath, "create"),
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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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RestartPolicy: v1.RestartPolicyNever,
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},
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}
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By("Creating the pod")
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f.PodClient().CreateSync(pod)
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pollCreateLogs := func() (string, error) {
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return framework.GetPodLogs(f.ClientSet, f.Namespace.Name, pod.Name, createContainerName)
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}
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Eventually(pollCreateLogs, podLogTimeout, framework.Poll).Should(ContainSubstring("Error reading file /etc/configmap-volumes/create/data-1"))
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pollUpdateLogs := func() (string, error) {
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return framework.GetPodLogs(f.ClientSet, f.Namespace.Name, pod.Name, updateContainerName)
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}
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Eventually(pollUpdateLogs, podLogTimeout, framework.Poll).Should(ContainSubstring("Error reading file /etc/configmap-volumes/update/data-3"))
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pollDeleteLogs := func() (string, error) {
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return framework.GetPodLogs(f.ClientSet, f.Namespace.Name, pod.Name, deleteContainerName)
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}
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Eventually(pollDeleteLogs, podLogTimeout, framework.Poll).Should(ContainSubstring("value-1"))
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By(fmt.Sprintf("Deleting configmap %v", deleteConfigMap.Name))
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err = f.ClientSet.Core().ConfigMaps(f.Namespace.Name).Delete(deleteConfigMap.Name, &metav1.DeleteOptions{})
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Expect(err).NotTo(HaveOccurred(), "Failed to delete configmap %q in namespace %q", deleteConfigMap.Name, f.Namespace.Name)
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By(fmt.Sprintf("Updating configmap %v", updateConfigMap.Name))
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updateConfigMap.ResourceVersion = "" // to force update
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delete(updateConfigMap.Data, "data-1")
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updateConfigMap.Data["data-3"] = "value-3"
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_, err = f.ClientSet.Core().ConfigMaps(f.Namespace.Name).Update(updateConfigMap)
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Expect(err).NotTo(HaveOccurred(), "Failed to update configmap %q in namespace %q", updateConfigMap.Name, f.Namespace.Name)
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By(fmt.Sprintf("Creating configMap with name %s", createConfigMap.Name))
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if createConfigMap, err = f.ClientSet.Core().ConfigMaps(f.Namespace.Name).Create(createConfigMap); err != nil {
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framework.Failf("unable to create test configMap %s: %v", createConfigMap.Name, err)
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}
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By("waiting to observe update in volume")
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Eventually(pollCreateLogs, podLogTimeout, framework.Poll).Should(ContainSubstring("value-1"))
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Eventually(pollUpdateLogs, podLogTimeout, framework.Poll).Should(ContainSubstring("value-3"))
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Eventually(pollDeleteLogs, podLogTimeout, framework.Poll).Should(ContainSubstring("Error reading file /etc/configmap-volumes/delete/data-1"))
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})
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It("should be consumable via environment variable [Conformance]", func() {
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name := "configmap-test-" + string(uuid.NewUUID())
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configMap := newConfigMap(f, name)
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By(fmt.Sprintf("Creating configMap %v/%v", f.Namespace.Name, configMap.Name))
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var err error
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if configMap, err = f.ClientSet.Core().ConfigMaps(f.Namespace.Name).Create(configMap); err != nil {
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framework.Failf("unable to create test configMap %s: %v", configMap.Name, err)
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}
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pod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "pod-configmaps-" + string(uuid.NewUUID()),
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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: "env-test",
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Image: "gcr.io/google_containers/busybox:1.24",
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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: "CONFIG_DATA_1",
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ValueFrom: &v1.EnvVarSource{
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ConfigMapKeyRef: &v1.ConfigMapKeySelector{
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LocalObjectReference: v1.LocalObjectReference{
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Name: name,
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},
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Key: "data-1",
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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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RestartPolicy: v1.RestartPolicyNever,
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},
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}
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f.TestContainerOutput("consume configMaps", pod, 0, []string{
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"CONFIG_DATA_1=value-1",
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})
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})
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It("should be consumable via the environment [Conformance]", func() {
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name := "configmap-test-" + string(uuid.NewUUID())
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configMap := newEnvFromConfigMap(f, name)
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By(fmt.Sprintf("Creating configMap %v/%v", f.Namespace.Name, configMap.Name))
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var err error
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if configMap, err = f.ClientSet.Core().ConfigMaps(f.Namespace.Name).Create(configMap); err != nil {
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framework.Failf("unable to create test configMap %s: %v", configMap.Name, err)
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}
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pod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "pod-configmaps-" + string(uuid.NewUUID()),
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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: "env-test",
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Image: "gcr.io/google_containers/busybox:1.24",
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Command: []string{"sh", "-c", "env"},
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EnvFrom: []v1.EnvFromSource{
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{
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ConfigMapRef: &v1.ConfigMapEnvSource{LocalObjectReference: v1.LocalObjectReference{Name: name}},
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},
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{
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Prefix: "p_",
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ConfigMapRef: &v1.ConfigMapEnvSource{LocalObjectReference: v1.LocalObjectReference{Name: 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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},
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}
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f.TestContainerOutput("consume configMaps", pod, 0, []string{
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"data_1=value-1", "data_2=value-2", "data_3=value-3",
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"p_data_1=value-1", "p_data_2=value-2", "p_data_3=value-3",
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})
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})
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It("should be consumable in multiple volumes in the same pod [Conformance] [Volume]", func() {
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var (
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name = "configmap-test-volume-" + string(uuid.NewUUID())
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volumeName = "configmap-volume"
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volumeMountPath = "/etc/configmap-volume"
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volumeName2 = "configmap-volume-2"
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volumeMountPath2 = "/etc/configmap-volume-2"
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configMap = newConfigMap(f, name)
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)
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By(fmt.Sprintf("Creating configMap with name %s", configMap.Name))
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var err error
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if configMap, err = f.ClientSet.Core().ConfigMaps(f.Namespace.Name).Create(configMap); err != nil {
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framework.Failf("unable to create test configMap %s: %v", configMap.Name, err)
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}
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pod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "pod-configmaps-" + string(uuid.NewUUID()),
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},
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Spec: v1.PodSpec{
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Volumes: []v1.Volume{
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{
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Name: volumeName,
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VolumeSource: v1.VolumeSource{
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ConfigMap: &v1.ConfigMapVolumeSource{
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LocalObjectReference: v1.LocalObjectReference{
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Name: name,
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},
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},
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},
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},
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{
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Name: volumeName2,
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VolumeSource: v1.VolumeSource{
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ConfigMap: &v1.ConfigMapVolumeSource{
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LocalObjectReference: v1.LocalObjectReference{
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Name: name,
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},
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},
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},
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},
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},
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Containers: []v1.Container{
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{
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Name: "configmap-volume-test",
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Image: "gcr.io/google_containers/mounttest:0.7",
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Args: []string{"--file_content=/etc/configmap-volume/data-1"},
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VolumeMounts: []v1.VolumeMount{
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{
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Name: volumeName,
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MountPath: volumeMountPath,
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ReadOnly: true,
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},
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{
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Name: volumeName2,
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MountPath: volumeMountPath2,
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ReadOnly: true,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
RestartPolicy: v1.RestartPolicyNever,
|
|
},
|
|
}
|
|
|
|
f.TestContainerOutput("consume configMaps", pod, 0, []string{
|
|
"content of file \"/etc/configmap-volume/data-1\": value-1",
|
|
})
|
|
|
|
})
|
|
})
|
|
|
|
func newConfigMap(f *framework.Framework, name string) *v1.ConfigMap {
|
|
return &v1.ConfigMap{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Namespace: f.Namespace.Name,
|
|
Name: name,
|
|
},
|
|
Data: map[string]string{
|
|
"data-1": "value-1",
|
|
"data-2": "value-2",
|
|
"data-3": "value-3",
|
|
},
|
|
}
|
|
}
|
|
|
|
func newEnvFromConfigMap(f *framework.Framework, name string) *v1.ConfigMap {
|
|
return &v1.ConfigMap{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Namespace: f.Namespace.Name,
|
|
Name: name,
|
|
},
|
|
Data: map[string]string{
|
|
"data_1": "value-1",
|
|
"data_2": "value-2",
|
|
"data_3": "value-3",
|
|
},
|
|
}
|
|
}
|
|
|
|
func doConfigMapE2EWithoutMappings(f *framework.Framework, uid, fsGroup int64, defaultMode *int32) {
|
|
var (
|
|
name = "configmap-test-volume-" + string(uuid.NewUUID())
|
|
volumeName = "configmap-volume"
|
|
volumeMountPath = "/etc/configmap-volume"
|
|
configMap = newConfigMap(f, name)
|
|
)
|
|
|
|
By(fmt.Sprintf("Creating configMap with name %s", configMap.Name))
|
|
var err error
|
|
if configMap, err = f.ClientSet.Core().ConfigMaps(f.Namespace.Name).Create(configMap); err != nil {
|
|
framework.Failf("unable to create test configMap %s: %v", configMap.Name, err)
|
|
}
|
|
|
|
pod := &v1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "pod-configmaps-" + string(uuid.NewUUID()),
|
|
},
|
|
Spec: v1.PodSpec{
|
|
SecurityContext: &v1.PodSecurityContext{},
|
|
Volumes: []v1.Volume{
|
|
{
|
|
Name: volumeName,
|
|
VolumeSource: v1.VolumeSource{
|
|
ConfigMap: &v1.ConfigMapVolumeSource{
|
|
LocalObjectReference: v1.LocalObjectReference{
|
|
Name: name,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
Containers: []v1.Container{
|
|
{
|
|
Name: "configmap-volume-test",
|
|
Image: "gcr.io/google_containers/mounttest:0.7",
|
|
Args: []string{
|
|
"--file_content=/etc/configmap-volume/data-1",
|
|
"--file_mode=/etc/configmap-volume/data-1"},
|
|
VolumeMounts: []v1.VolumeMount{
|
|
{
|
|
Name: volumeName,
|
|
MountPath: volumeMountPath,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
RestartPolicy: v1.RestartPolicyNever,
|
|
},
|
|
}
|
|
|
|
if uid != 0 {
|
|
pod.Spec.SecurityContext.RunAsUser = &uid
|
|
}
|
|
|
|
if fsGroup != 0 {
|
|
pod.Spec.SecurityContext.FSGroup = &fsGroup
|
|
}
|
|
if defaultMode != nil {
|
|
pod.Spec.Volumes[0].VolumeSource.ConfigMap.DefaultMode = defaultMode
|
|
} else {
|
|
mode := int32(0644)
|
|
defaultMode = &mode
|
|
}
|
|
|
|
modeString := fmt.Sprintf("%v", os.FileMode(*defaultMode))
|
|
output := []string{
|
|
"content of file \"/etc/configmap-volume/data-1\": value-1",
|
|
"mode of file \"/etc/configmap-volume/data-1\": " + modeString,
|
|
}
|
|
f.TestContainerOutput("consume configMaps", pod, 0, output)
|
|
}
|
|
|
|
func doConfigMapE2EWithMappings(f *framework.Framework, uid, fsGroup int64, itemMode *int32) {
|
|
var (
|
|
name = "configmap-test-volume-map-" + string(uuid.NewUUID())
|
|
volumeName = "configmap-volume"
|
|
volumeMountPath = "/etc/configmap-volume"
|
|
configMap = newConfigMap(f, name)
|
|
)
|
|
|
|
By(fmt.Sprintf("Creating configMap with name %s", configMap.Name))
|
|
|
|
var err error
|
|
if configMap, err = f.ClientSet.Core().ConfigMaps(f.Namespace.Name).Create(configMap); err != nil {
|
|
framework.Failf("unable to create test configMap %s: %v", configMap.Name, err)
|
|
}
|
|
|
|
pod := &v1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "pod-configmaps-" + string(uuid.NewUUID()),
|
|
},
|
|
Spec: v1.PodSpec{
|
|
SecurityContext: &v1.PodSecurityContext{},
|
|
Volumes: []v1.Volume{
|
|
{
|
|
Name: volumeName,
|
|
VolumeSource: v1.VolumeSource{
|
|
ConfigMap: &v1.ConfigMapVolumeSource{
|
|
LocalObjectReference: v1.LocalObjectReference{
|
|
Name: name,
|
|
},
|
|
Items: []v1.KeyToPath{
|
|
{
|
|
Key: "data-2",
|
|
Path: "path/to/data-2",
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
Containers: []v1.Container{
|
|
{
|
|
Name: "configmap-volume-test",
|
|
Image: "gcr.io/google_containers/mounttest:0.7",
|
|
Args: []string{"--file_content=/etc/configmap-volume/path/to/data-2",
|
|
"--file_mode=/etc/configmap-volume/path/to/data-2"},
|
|
VolumeMounts: []v1.VolumeMount{
|
|
{
|
|
Name: volumeName,
|
|
MountPath: volumeMountPath,
|
|
ReadOnly: true,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
RestartPolicy: v1.RestartPolicyNever,
|
|
},
|
|
}
|
|
|
|
if uid != 0 {
|
|
pod.Spec.SecurityContext.RunAsUser = &uid
|
|
}
|
|
|
|
if fsGroup != 0 {
|
|
pod.Spec.SecurityContext.FSGroup = &fsGroup
|
|
}
|
|
if itemMode != nil {
|
|
pod.Spec.Volumes[0].VolumeSource.ConfigMap.Items[0].Mode = itemMode
|
|
} else {
|
|
mode := int32(0644)
|
|
itemMode = &mode
|
|
}
|
|
|
|
// Just check file mode if fsGroup is not set. If fsGroup is set, the
|
|
// final mode is adjusted and we are not testing that case.
|
|
output := []string{
|
|
"content of file \"/etc/configmap-volume/path/to/data-2\": value-2",
|
|
}
|
|
if fsGroup == 0 {
|
|
modeString := fmt.Sprintf("%v", os.FileMode(*itemMode))
|
|
output = append(output, "mode of file \"/etc/configmap-volume/path/to/data-2\": "+modeString)
|
|
}
|
|
f.TestContainerOutput("consume configMaps", pod, 0, output)
|
|
}
|