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348 lines
13 KiB
Go
348 lines
13 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 node
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import (
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"context"
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"encoding/json"
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"fmt"
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v1 "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/types"
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"k8s.io/apimachinery/pkg/util/uuid"
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"k8s.io/kubernetes/test/e2e/framework"
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e2epodoutput "k8s.io/kubernetes/test/e2e/framework/pod/output"
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imageutils "k8s.io/kubernetes/test/utils/image"
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admissionapi "k8s.io/pod-security-admission/api"
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"github.com/onsi/ginkgo/v2"
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"github.com/onsi/gomega"
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)
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var _ = SIGDescribe("ConfigMap", func() {
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f := framework.NewDefaultFramework("configmap")
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f.NamespacePodSecurityLevel = admissionapi.LevelBaseline
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/*
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Release: v1.9
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Testname: ConfigMap, from environment field
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Description: Create a Pod with an environment variable value set using a value from ConfigMap. A ConfigMap value MUST be accessible in the container environment.
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*/
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framework.ConformanceIt("should be consumable via environment variable", f.WithNodeConformance(), func(ctx context.Context) {
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name := "configmap-test-" + string(uuid.NewUUID())
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configMap := newConfigMap(f, name)
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ginkgo.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.CoreV1().ConfigMaps(f.Namespace.Name).Create(ctx, configMap, metav1.CreateOptions{}); 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: 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: "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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e2epodoutput.TestContainerOutput(ctx, f, "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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/*
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Release: v1.9
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Testname: ConfigMap, from environment variables
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Description: Create a Pod with a environment source from ConfigMap. All ConfigMap values MUST be available as environment variables in the container.
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*/
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framework.ConformanceIt("should be consumable via the environment", f.WithNodeConformance(), func(ctx context.Context) {
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name := "configmap-test-" + string(uuid.NewUUID())
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configMap := newConfigMap(f, name)
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ginkgo.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.CoreV1().ConfigMaps(f.Namespace.Name).Create(ctx, configMap, metav1.CreateOptions{}); 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: imageutils.GetE2EImage(imageutils.BusyBox),
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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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e2epodoutput.TestContainerOutput(ctx, f, "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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/*
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Release: v1.14
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Testname: ConfigMap, with empty-key
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Description: Attempt to create a ConfigMap with an empty key. The creation MUST fail.
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*/
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framework.ConformanceIt("should fail to create ConfigMap with empty key", func(ctx context.Context) {
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configMap, err := newConfigMapWithEmptyKey(ctx, f)
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gomega.Expect(err).To(gomega.HaveOccurred(), "created configMap %q with empty key in namespace %q", configMap.Name, f.Namespace.Name)
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})
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ginkgo.It("should update ConfigMap successfully", func(ctx context.Context) {
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name := "configmap-test-" + string(uuid.NewUUID())
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configMap := newConfigMap(f, name)
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ginkgo.By(fmt.Sprintf("Creating ConfigMap %v/%v", f.Namespace.Name, configMap.Name))
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_, err := f.ClientSet.CoreV1().ConfigMaps(f.Namespace.Name).Create(ctx, configMap, metav1.CreateOptions{})
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framework.ExpectNoError(err, "failed to create ConfigMap")
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configMap.Data = map[string]string{
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"data": "value",
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}
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ginkgo.By(fmt.Sprintf("Updating configMap %v/%v", f.Namespace.Name, configMap.Name))
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_, err = f.ClientSet.CoreV1().ConfigMaps(f.Namespace.Name).Update(ctx, configMap, metav1.UpdateOptions{})
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framework.ExpectNoError(err, "failed to update ConfigMap")
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configMapFromUpdate, err := f.ClientSet.CoreV1().ConfigMaps(f.Namespace.Name).Get(ctx, name, metav1.GetOptions{})
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framework.ExpectNoError(err, "failed to get ConfigMap")
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ginkgo.By(fmt.Sprintf("Verifying update of ConfigMap %v/%v", f.Namespace.Name, configMap.Name))
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gomega.Expect(configMapFromUpdate.Data).To(gomega.Equal(configMap.Data))
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})
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/*
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Release: v1.19
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Testname: ConfigMap lifecycle
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Description: Attempt to create a ConfigMap. Patch the created ConfigMap. Fetching the ConfigMap MUST reflect changes.
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By fetching all the ConfigMaps via a Label selector it MUST find the ConfigMap by it's static label and updated value. The ConfigMap must be deleted by Collection.
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*/
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framework.ConformanceIt("should run through a ConfigMap lifecycle", func(ctx context.Context) {
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testNamespaceName := f.Namespace.Name
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testConfigMapName := "test-configmap" + string(uuid.NewUUID())
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testConfigMap := v1.ConfigMap{
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ObjectMeta: metav1.ObjectMeta{
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Name: testConfigMapName,
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Labels: map[string]string{
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"test-configmap-static": "true",
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},
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},
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Data: map[string]string{
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"valueName": "value",
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},
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}
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ginkgo.By("creating a ConfigMap")
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_, err := f.ClientSet.CoreV1().ConfigMaps(testNamespaceName).Create(ctx, &testConfigMap, metav1.CreateOptions{})
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framework.ExpectNoError(err, "failed to create ConfigMap")
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ginkgo.By("fetching the ConfigMap")
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configMap, err := f.ClientSet.CoreV1().ConfigMaps(testNamespaceName).Get(ctx, testConfigMapName, metav1.GetOptions{})
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framework.ExpectNoError(err, "failed to get ConfigMap")
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gomega.Expect(configMap.Data["valueName"]).To(gomega.Equal(testConfigMap.Data["valueName"]))
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gomega.Expect(configMap.Labels["test-configmap-static"]).To(gomega.Equal(testConfigMap.Labels["test-configmap-static"]))
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configMapPatchPayload, err := json.Marshal(v1.ConfigMap{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{
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"test-configmap": "patched",
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},
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},
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Data: map[string]string{
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"valueName": "value1",
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},
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})
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framework.ExpectNoError(err, "failed to marshal patch data")
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ginkgo.By("patching the ConfigMap")
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_, err = f.ClientSet.CoreV1().ConfigMaps(testNamespaceName).Patch(ctx, testConfigMapName, types.StrategicMergePatchType, []byte(configMapPatchPayload), metav1.PatchOptions{})
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framework.ExpectNoError(err, "failed to patch ConfigMap")
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ginkgo.By("listing all ConfigMaps in all namespaces with a label selector")
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configMapList, err := f.ClientSet.CoreV1().ConfigMaps("").List(ctx, metav1.ListOptions{
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LabelSelector: "test-configmap=patched",
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})
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framework.ExpectNoError(err, "failed to list ConfigMaps with LabelSelector")
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testConfigMapFound := false
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for _, cm := range configMapList.Items {
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if cm.ObjectMeta.Name == testConfigMap.ObjectMeta.Name &&
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cm.ObjectMeta.Namespace == testNamespaceName &&
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cm.ObjectMeta.Labels["test-configmap-static"] == testConfigMap.ObjectMeta.Labels["test-configmap-static"] &&
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cm.ObjectMeta.Labels["test-configmap"] == "patched" &&
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cm.Data["valueName"] == "value1" {
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testConfigMapFound = true
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break
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}
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}
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if !testConfigMapFound {
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framework.Failf("failed to find ConfigMap %s/%s by label selector", testNamespaceName, testConfigMap.ObjectMeta.Name)
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}
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ginkgo.By("deleting the ConfigMap by collection with a label selector")
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err = f.ClientSet.CoreV1().ConfigMaps(testNamespaceName).DeleteCollection(ctx, metav1.DeleteOptions{}, metav1.ListOptions{
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LabelSelector: "test-configmap-static=true",
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})
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framework.ExpectNoError(err, "failed to delete ConfigMap collection with LabelSelector")
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ginkgo.By("listing all ConfigMaps in test namespace")
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configMapList, err = f.ClientSet.CoreV1().ConfigMaps(testNamespaceName).List(ctx, metav1.ListOptions{
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LabelSelector: "test-configmap-static=true",
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})
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framework.ExpectNoError(err, "failed to list ConfigMap by LabelSelector")
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gomega.Expect(configMapList.Items).To(gomega.BeEmpty(), "ConfigMap is still present after being deleted by collection")
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})
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/*
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Release: v1.34
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Testname: ConfigMap, from environment field with various prefixes
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Description: Create a Pod with environment variable values set using values from ConfigMap.
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Allows users to use envFrom to set prefixes with various printable ASCII characters excluding '=' as environment variable names.
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This test verifies that different prefixes including digits, special characters, and letters can be correctly used.
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*/
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framework.ConformanceIt("should be consumable as environment variable names with various prefixes", func(ctx context.Context) {
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name := "configmap-test-" + string(uuid.NewUUID())
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configMap := newConfigMap(f, name)
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ginkgo.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.CoreV1().ConfigMaps(f.Namespace.Name).Create(ctx, configMap, metav1.CreateOptions{}); 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: imageutils.GetE2EImage(imageutils.BusyBox),
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Command: []string{"sh", "-c", "env"},
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EnvFrom: []v1.EnvFromSource{
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{
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// No prefix
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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 starting with a digit
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Prefix: "1-",
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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 with special characters
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Prefix: "$_-",
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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 with uppercase letters
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Prefix: "ABC_",
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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 with symbols
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Prefix: "#@!",
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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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e2epodoutput.TestContainerOutput(ctx, f, "consume configMaps", pod, 0, []string{
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// Original values without prefix
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"data-1=value-1", "data-2=value-2", "data-3=value-3",
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// Values with digit prefix
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"1-data-1=value-1", "1-data-2=value-2", "1-data-3=value-3",
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// Values with special character prefix
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"$_-data-1=value-1", "$_-data-2=value-2", "$_-data-3=value-3",
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// Values with uppercase letter prefix
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"ABC_data-1=value-1", "ABC_data-2=value-2", "ABC_data-3=value-3",
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// Values with symbol prefix
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"#@!data-1=value-1", "#@!data-2=value-2", "#@!data-3=value-3",
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})
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})
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})
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func newConfigMap(f *framework.Framework, name string) *v1.ConfigMap {
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return &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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"data-2": "value-2",
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"data-3": "value-3",
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},
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}
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}
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func newConfigMapWithEmptyKey(ctx context.Context, f *framework.Framework) (*v1.ConfigMap, error) {
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name := "configmap-test-emptyKey-" + string(uuid.NewUUID())
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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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"": "value-1",
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},
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}
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ginkgo.By(fmt.Sprintf("Creating configMap that has name %s", configMap.Name))
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return f.ClientSet.CoreV1().ConfigMaps(f.Namespace.Name).Create(ctx, configMap, metav1.CreateOptions{})
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}
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