18ec2761c0
The directory created by `T.TempDir` is automatically removed when the test and all its subtests complete. Reference: https://pkg.go.dev/testing#T.TempDir Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
90 lines
3.1 KiB
Go
90 lines
3.1 KiB
Go
/*
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Copyright The containerd 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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"path/filepath"
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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exec "golang.org/x/sys/execabs"
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runtime "k8s.io/cri-api/pkg/apis/runtime/v1"
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)
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// Test to load an image from tarball.
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func TestImageLoad(t *testing.T) {
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testImage := GetImage(BusyBox)
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loadedImage := testImage
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_, err := exec.LookPath("docker")
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if err != nil {
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t.Skipf("Docker is not available: %v", err)
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}
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t.Logf("docker save image into tarball")
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output, err := exec.Command("docker", "pull", testImage).CombinedOutput()
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require.NoError(t, err, "output: %q", output)
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// os.CreateTemp also opens a file, which might prevent us from overwriting that file with docker save.
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tarDir := t.TempDir()
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tar := filepath.Join(tarDir, "image.tar")
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require.NoError(t, err)
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output, err = exec.Command("docker", "save", testImage, "-o", tar).CombinedOutput()
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require.NoError(t, err, "output: %q", output)
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t.Logf("make sure no such image in cri")
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img, err := imageService.ImageStatus(&runtime.ImageSpec{Image: testImage})
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require.NoError(t, err)
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if img != nil {
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require.NoError(t, imageService.RemoveImage(&runtime.ImageSpec{Image: testImage}))
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}
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t.Logf("load image in cri")
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ctr, err := exec.LookPath("ctr")
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require.NoError(t, err, "ctr should be installed, make sure you've run `make install-deps`")
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output, err = exec.Command(ctr, "-address="+containerdEndpoint,
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"-n=k8s.io", "images", "import", tar).CombinedOutput()
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require.NoError(t, err, "output: %q", output)
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t.Logf("make sure image is loaded")
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// Use Eventually because the cri plugin needs a short period of time
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// to pick up images imported into containerd directly.
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require.NoError(t, Eventually(func() (bool, error) {
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img, err = imageService.ImageStatus(&runtime.ImageSpec{Image: testImage})
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if err != nil {
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return false, err
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}
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return img != nil, nil
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}, 100*time.Millisecond, 10*time.Second))
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require.Equal(t, []string{loadedImage}, img.RepoTags)
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t.Logf("create a container with the loaded image")
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sb, sbConfig := PodSandboxConfigWithCleanup(t, "sandbox", Randomize("image-load"))
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containerConfig := 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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// Rely on sandbox clean to do container cleanup.
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cn, err := runtimeService.CreateContainer(sb, containerConfig, sbConfig)
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require.NoError(t, err)
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require.NoError(t, runtimeService.StartContainer(cn))
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t.Logf("make sure container is running")
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status, err := runtimeService.ContainerStatus(cn)
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require.NoError(t, err)
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require.Equal(t, runtime.ContainerState_CONTAINER_RUNNING, status.State)
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}
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