91 lines
2.7 KiB
Go
91 lines
2.7 KiB
Go
/*
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Copyright 2018 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 integration
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import (
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"fmt"
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"os/exec"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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runtime "k8s.io/kubernetes/pkg/kubelet/apis/cri/runtime/v1alpha2"
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)
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func TestVolumeCopyUp(t *testing.T) {
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const (
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testImage = "gcr.io/k8s-cri-containerd/volume-copy-up:1.0"
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execTimeout = time.Minute
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)
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t.Logf("Create a sandbox")
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sbConfig := PodSandboxConfig("sandbox", "volume-copy-up")
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sb, err := runtimeService.RunPodSandbox(sbConfig)
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require.NoError(t, err)
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defer func() {
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assert.NoError(t, runtimeService.StopPodSandbox(sb))
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assert.NoError(t, runtimeService.RemovePodSandbox(sb))
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}()
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t.Logf("Pull test image")
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_, err = imageService.PullImage(&runtime.ImageSpec{Image: testImage}, nil)
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require.NoError(t, err)
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t.Logf("Create a container with volume-copy-up test image")
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cnConfig := ContainerConfig(
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"container",
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testImage,
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WithCommand("tail", "-f", "/dev/null"),
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)
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cn, err := runtimeService.CreateContainer(sb, cnConfig, sbConfig)
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require.NoError(t, err)
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t.Logf("Start the container")
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require.NoError(t, runtimeService.StartContainer(cn))
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// gcr.io/k8s-cri-containerd/volume-copy-up:1.0 contains a test_dir
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// volume, which contains a test_file with content "test_content".
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t.Logf("Check whether volume contains the test file")
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stdout, stderr, err := runtimeService.ExecSync(cn, []string{
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"cat",
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"/test_dir/test_file",
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}, execTimeout)
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require.NoError(t, err)
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assert.Empty(t, stderr)
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assert.Equal(t, "test_content\n", string(stdout))
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t.Logf("Check host path of the volume")
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hostCmd := fmt.Sprintf("ls %s/containers/%s/volumes/*/test_file | xargs cat", *criRoot, cn)
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output, err := exec.Command("sh", "-c", hostCmd).CombinedOutput()
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require.NoError(t, err)
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assert.Equal(t, "test_content\n", string(output))
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t.Logf("Update volume from inside the container")
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_, _, err = runtimeService.ExecSync(cn, []string{
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"sh",
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"-c",
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"echo new_content > /test_dir/test_file",
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}, execTimeout)
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require.NoError(t, err)
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t.Logf("Check whether host path of the volume is updated")
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output, err = exec.Command("sh", "-c", hostCmd).CombinedOutput()
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require.NoError(t, err)
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assert.Equal(t, "new_content\n", string(output))
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}
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