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All code must use the context from Ginkgo when doing API calls or polling for a change, otherwise the code would not return immediately when the test gets aborted.
109 lines
4.5 KiB
Go
109 lines
4.5 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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"github.com/onsi/gomega"
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v1 "k8s.io/api/core/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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e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
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e2epodoutput "k8s.io/kubernetes/test/e2e/framework/pod/output"
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admissionapi "k8s.io/pod-security-admission/api"
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)
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var _ = SIGDescribe("Containers", func() {
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f := framework.NewDefaultFramework("containers")
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f.NamespacePodSecurityEnforceLevel = admissionapi.LevelBaseline
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/*
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Release: v1.9
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Testname: Containers, without command and arguments
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Description: Default command and arguments from the container image entrypoint MUST be used when Pod does not specify the container command
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*/
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framework.ConformanceIt("should use the image defaults if command and args are blank [NodeConformance]", func(ctx context.Context) {
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pod := entrypointTestPod(f.Namespace.Name)
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pod.Spec.Containers[0].Args = nil
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pod = e2epod.NewPodClient(f).Create(ctx, pod)
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err := e2epod.WaitForPodNameRunningInNamespace(ctx, f.ClientSet, pod.Name, f.Namespace.Name)
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framework.ExpectNoError(err, "Expected pod %q to be running, got error: %v", pod.Name, err)
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pollLogs := func() (string, error) {
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return e2epod.GetPodLogs(ctx, f.ClientSet, f.Namespace.Name, pod.Name, pod.Spec.Containers[0].Name)
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}
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// The agnhost's image default entrypoint / args are: "/agnhost pause"
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// which will print out "Paused".
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gomega.Eventually(ctx, pollLogs, 3, framework.Poll).Should(gomega.ContainSubstring("Paused"))
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})
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/*
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Release: v1.9
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Testname: Containers, with arguments
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Description: Default command and from the container image entrypoint MUST be used when Pod does not specify the container command but the arguments from Pod spec MUST override when specified.
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*/
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framework.ConformanceIt("should be able to override the image's default arguments (container cmd) [NodeConformance]", func(ctx context.Context) {
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pod := entrypointTestPod(f.Namespace.Name, "entrypoint-tester", "override", "arguments")
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e2epodoutput.TestContainerOutput(ctx, f, "override arguments", pod, 0, []string{
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"[/agnhost entrypoint-tester override arguments]",
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})
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})
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// Note: when you override the entrypoint, the image's arguments (container cmd)
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// are ignored.
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/*
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Release: v1.9
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Testname: Containers, with command
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Description: Default command from the container image entrypoint MUST NOT be used when Pod specifies the container command. Command from Pod spec MUST override the command in the image.
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*/
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framework.ConformanceIt("should be able to override the image's default command (container entrypoint) [NodeConformance]", func(ctx context.Context) {
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pod := entrypointTestPod(f.Namespace.Name, "entrypoint-tester")
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pod.Spec.Containers[0].Command = []string{"/agnhost-2"}
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e2epodoutput.TestContainerOutput(ctx, f, "override command", pod, 0, []string{
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"[/agnhost-2 entrypoint-tester]",
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})
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})
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/*
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Release: v1.9
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Testname: Containers, with command and arguments
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Description: Default command and arguments from the container image entrypoint MUST NOT be used when Pod specifies the container command and arguments. Command and arguments from Pod spec MUST override the command and arguments in the image.
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*/
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framework.ConformanceIt("should be able to override the image's default command and arguments [NodeConformance]", func(ctx context.Context) {
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pod := entrypointTestPod(f.Namespace.Name, "entrypoint-tester", "override", "arguments")
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pod.Spec.Containers[0].Command = []string{"/agnhost-2"}
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e2epodoutput.TestContainerOutput(ctx, f, "override all", pod, 0, []string{
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"[/agnhost-2 entrypoint-tester override arguments]",
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})
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})
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})
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// Return a prototypical entrypoint test pod
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func entrypointTestPod(namespace string, entrypointArgs ...string) *v1.Pod {
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podName := "client-containers-" + string(uuid.NewUUID())
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pod := e2epod.NewAgnhostPod(namespace, podName, nil, nil, nil, entrypointArgs...)
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one := int64(1)
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pod.Spec.TerminationGracePeriodSeconds = &one
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pod.Spec.RestartPolicy = v1.RestartPolicyNever
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return pod
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}
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