|
| 1 | +/* |
| 2 | +Copyright 2016 The Kubernetes Authors. |
| 3 | +
|
| 4 | +Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | +you may not use this file except in compliance with the License. |
| 6 | +You may obtain a copy of the License at |
| 7 | +
|
| 8 | + http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | +
|
| 10 | +Unless required by applicable law or agreed to in writing, software |
| 11 | +distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | +See the License for the specific language governing permissions and |
| 14 | +limitations under the License. |
| 15 | +*/ |
| 16 | + |
| 17 | +package e2enode |
| 18 | + |
| 19 | +import ( |
| 20 | + "context" |
| 21 | + "fmt" |
| 22 | + "os" |
| 23 | + "path/filepath" |
| 24 | + "time" |
| 25 | + |
| 26 | + v1 "k8s.io/api/core/v1" |
| 27 | + "k8s.io/kubernetes/pkg/kubelet/images" |
| 28 | + "k8s.io/kubernetes/test/e2e/common/node" |
| 29 | + "k8s.io/kubernetes/test/e2e/framework" |
| 30 | + e2epod "k8s.io/kubernetes/test/e2e/framework/pod" |
| 31 | + "k8s.io/kubernetes/test/e2e_node/services" |
| 32 | + admissionapi "k8s.io/pod-security-admission/api" |
| 33 | + |
| 34 | + "github.com/onsi/ginkgo/v2" |
| 35 | +) |
| 36 | + |
| 37 | +var _ = SIGDescribe("Container Runtime Conformance Test", func() { |
| 38 | + f := framework.NewDefaultFramework("runtime-conformance") |
| 39 | + f.NamespacePodSecurityLevel = admissionapi.LevelBaseline |
| 40 | + |
| 41 | + ginkgo.Describe("container runtime conformance blackbox test", func() { |
| 42 | + |
| 43 | + ginkgo.Context("when running a container with a new image", func() { |
| 44 | + // The service account only has pull permission |
| 45 | + auth := ` |
| 46 | +{ |
| 47 | + "auths": { |
| 48 | + "https://gcr.io": { |
| 49 | + "auth": "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", |
| 50 | + "email": "image-pulling@authenticated-image-pulling.iam.gserviceaccount.com" |
| 51 | + } |
| 52 | + } |
| 53 | +}` |
| 54 | + // The following images are not added into NodePrePullImageList, because this test is |
| 55 | + // testing image pulling, these images don't need to be prepulled. The ImagePullPolicy |
| 56 | + // is v1.PullAlways, so it won't be blocked by framework image pre-pull list check. |
| 57 | + for _, testCase := range []struct { |
| 58 | + description string |
| 59 | + image string |
| 60 | + phase v1.PodPhase |
| 61 | + waiting bool |
| 62 | + }{ |
| 63 | + { |
| 64 | + description: "should be able to pull from private registry with credential provider", |
| 65 | + image: "gcr.io/authenticated-image-pulling/alpine:3.7", |
| 66 | + phase: v1.PodRunning, |
| 67 | + waiting: false, |
| 68 | + }, |
| 69 | + } { |
| 70 | + testCase := testCase |
| 71 | + f.It(testCase.description+"", f.WithNodeConformance(), func(ctx context.Context) { |
| 72 | + name := "image-pull-test" |
| 73 | + command := []string{"/bin/sh", "-c", "while true; do sleep 1; done"} |
| 74 | + container := node.ConformanceContainer{ |
| 75 | + PodClient: e2epod.NewPodClient(f), |
| 76 | + Container: v1.Container{ |
| 77 | + Name: name, |
| 78 | + Image: testCase.image, |
| 79 | + Command: command, |
| 80 | + // PullAlways makes sure that the image will always be pulled even if it is present before the test. |
| 81 | + ImagePullPolicy: v1.PullAlways, |
| 82 | + }, |
| 83 | + RestartPolicy: v1.RestartPolicyNever, |
| 84 | + } |
| 85 | + |
| 86 | + configFile := filepath.Join(services.KubeletRootDirectory, "config.json") |
| 87 | + err := os.WriteFile(configFile, []byte(auth), 0644) |
| 88 | + framework.ExpectNoError(err) |
| 89 | + defer os.Remove(configFile) |
| 90 | + |
| 91 | + // checkContainerStatus checks whether the container status matches expectation. |
| 92 | + checkContainerStatus := func(ctx context.Context) error { |
| 93 | + status, err := container.GetStatus(ctx) |
| 94 | + if err != nil { |
| 95 | + return fmt.Errorf("failed to get container status: %w", err) |
| 96 | + } |
| 97 | + // We need to check container state first. The default pod status is pending, If we check |
| 98 | + // pod phase first, and the expected pod phase is Pending, the container status may not |
| 99 | + // even show up when we check it. |
| 100 | + // Check container state |
| 101 | + if !testCase.waiting { |
| 102 | + if status.State.Running == nil { |
| 103 | + return fmt.Errorf("expected container state: Running, got: %q", |
| 104 | + node.GetContainerState(status.State)) |
| 105 | + } |
| 106 | + } |
| 107 | + if testCase.waiting { |
| 108 | + if status.State.Waiting == nil { |
| 109 | + return fmt.Errorf("expected container state: Waiting, got: %q", |
| 110 | + node.GetContainerState(status.State)) |
| 111 | + } |
| 112 | + reason := status.State.Waiting.Reason |
| 113 | + if reason != images.ErrImagePull.Error() && |
| 114 | + reason != images.ErrImagePullBackOff.Error() { |
| 115 | + return fmt.Errorf("unexpected waiting reason: %q", reason) |
| 116 | + } |
| 117 | + } |
| 118 | + // Check pod phase |
| 119 | + phase, err := container.GetPhase(ctx) |
| 120 | + if err != nil { |
| 121 | + return fmt.Errorf("failed to get pod phase: %w", err) |
| 122 | + } |
| 123 | + if phase != testCase.phase { |
| 124 | + return fmt.Errorf("expected pod phase: %q, got: %q", testCase.phase, phase) |
| 125 | + } |
| 126 | + return nil |
| 127 | + } |
| 128 | + // The image registry is not stable, which sometimes causes the test to fail. Add retry mechanism to make this |
| 129 | + // less flaky. |
| 130 | + const flakeRetry = 3 |
| 131 | + for i := 1; i <= flakeRetry; i++ { |
| 132 | + var err error |
| 133 | + ginkgo.By("create the container") |
| 134 | + container.Create(ctx) |
| 135 | + ginkgo.By("check the container status") |
| 136 | + for start := time.Now(); time.Since(start) < node.ContainerStatusRetryTimeout; time.Sleep(node.ContainerStatusPollInterval) { |
| 137 | + if err = checkContainerStatus(ctx); err == nil { |
| 138 | + break |
| 139 | + } |
| 140 | + } |
| 141 | + ginkgo.By("delete the container") |
| 142 | + _ = container.Delete(ctx) |
| 143 | + if err == nil { |
| 144 | + break |
| 145 | + } |
| 146 | + if i < flakeRetry { |
| 147 | + framework.Logf("No.%d attempt failed: %v, retrying...", i, err) |
| 148 | + } else { |
| 149 | + framework.Failf("All %d attempts failed: %v", flakeRetry, err) |
| 150 | + } |
| 151 | + } |
| 152 | + }) |
| 153 | + } |
| 154 | + }) |
| 155 | + }) |
| 156 | +}) |
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