266 lines
6.5 KiB
Go
266 lines
6.5 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 client
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import (
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"context"
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"fmt"
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"runtime"
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"strings"
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"testing"
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. "github.com/containerd/containerd"
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"github.com/containerd/containerd/errdefs"
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"github.com/containerd/containerd/images"
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"github.com/containerd/containerd/platforms"
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ocispec "github.com/opencontainers/image-spec/specs-go/v1"
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)
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func TestImageIsUnpacked(t *testing.T) {
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const imageName = "k8s.gcr.io/pause:3.7"
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ctx, cancel := testContext(t)
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defer cancel()
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client, err := newClient(t, address)
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if err != nil {
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t.Fatal(err)
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}
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defer client.Close()
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// Cleanup
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opts := []images.DeleteOpt{images.SynchronousDelete()}
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err = client.ImageService().Delete(ctx, imageName, opts...)
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if err != nil && !errdefs.IsNotFound(err) {
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t.Fatal(err)
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}
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// By default pull does not unpack an image
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image, err := client.Pull(ctx, imageName, WithPlatformMatcher(platforms.Default()))
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if err != nil {
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t.Fatal(err)
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}
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// Check that image is not unpacked
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unpacked, err := image.IsUnpacked(ctx, DefaultSnapshotter)
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if err != nil {
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t.Fatal(err)
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}
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if unpacked {
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t.Fatalf("image should not be unpacked")
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}
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// Check that image is unpacked
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err = image.Unpack(ctx, DefaultSnapshotter)
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if err != nil {
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t.Fatal(err)
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}
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unpacked, err = image.IsUnpacked(ctx, DefaultSnapshotter)
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if err != nil {
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t.Fatal(err)
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}
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if !unpacked {
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t.Fatalf("image should be unpacked")
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}
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}
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func TestImagePullWithDistSourceLabel(t *testing.T) {
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var (
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source = "k8s.gcr.io"
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repoName = "pause"
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tag = "3.6"
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)
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ctx, cancel := testContext(t)
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defer cancel()
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client, err := newClient(t, address)
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if err != nil {
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t.Fatal(err)
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}
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defer client.Close()
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imageName := fmt.Sprintf("%s/%s:%s", source, repoName, tag)
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pMatcher := platforms.Default()
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// pull content without unpack and add distribution source label
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image, err := client.Pull(ctx, imageName, WithPlatformMatcher(pMatcher))
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if err != nil {
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t.Fatal(err)
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}
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defer client.ImageService().Delete(ctx, imageName)
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cs := client.ContentStore()
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key := fmt.Sprintf("containerd.io/distribution.source.%s", source)
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// only check the target platform
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childrenHandler := images.LimitManifests(images.ChildrenHandler(cs), pMatcher, 1)
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checkLabelHandler := func(ctx context.Context, desc ocispec.Descriptor) ([]ocispec.Descriptor, error) {
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children, err := childrenHandler(ctx, desc)
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if err != nil {
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return nil, err
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}
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info, err := cs.Info(ctx, desc.Digest)
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if err != nil {
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return nil, err
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}
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// check the label
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if got := info.Labels[key]; !strings.Contains(got, repoName) {
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return nil, fmt.Errorf("expected to have %s repo name in label, but got %s", repoName, got)
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}
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return children, nil
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}
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if err := images.Dispatch(ctx, images.HandlerFunc(checkLabelHandler), nil, image.Target()); err != nil {
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t.Fatal(err)
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}
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}
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func TestImageUsage(t *testing.T) {
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if testing.Short() {
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t.Skip()
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}
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imageName := "k8s.gcr.io/pause:3.7"
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ctx, cancel := testContext(t)
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defer cancel()
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client, err := newClient(t, address)
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if err != nil {
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t.Fatal(err)
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}
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defer client.Close()
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// Cleanup
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err = client.ImageService().Delete(ctx, imageName, images.SynchronousDelete())
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if err != nil && !errdefs.IsNotFound(err) {
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t.Fatal(err)
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}
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pMatcher := platforms.Default()
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// Pull single platform, do not unpack
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image, err := client.Pull(ctx, imageName, WithPlatformMatcher(pMatcher))
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if err != nil {
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t.Fatal(err)
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}
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s1, err := image.Usage(ctx, WithUsageManifestLimit(1))
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if err != nil {
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t.Fatal(err)
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}
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if _, err := image.Usage(ctx, WithUsageManifestLimit(0), WithManifestUsage()); err == nil {
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t.Fatal("expected NotFound with missing manifests")
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} else if !errdefs.IsNotFound(err) {
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t.Fatalf("unexpected error: %+v", err)
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}
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// Pin image name to specific version for future fetches
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imageName = imageName + "@" + image.Target().Digest.String()
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defer client.ImageService().Delete(ctx, imageName, images.SynchronousDelete())
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// Fetch single platforms, but all manifests pulled
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if _, err := client.Fetch(ctx, imageName, WithPlatformMatcher(pMatcher), WithAllMetadata()); err != nil {
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t.Fatal(err)
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}
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if s, err := image.Usage(ctx, WithUsageManifestLimit(1)); err != nil {
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t.Fatal(err)
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} else if s != s1 {
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t.Fatalf("unexpected usage %d, expected %d", s, s1)
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}
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s2, err := image.Usage(ctx, WithUsageManifestLimit(0))
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if err != nil {
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t.Fatal(err)
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}
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if s2 <= s1 {
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t.Fatalf("Expected larger usage counting all manifests: %d <= %d", s2, s1)
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}
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s3, err := image.Usage(ctx, WithUsageManifestLimit(0), WithManifestUsage())
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if err != nil {
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t.Fatal(err)
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}
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if s3 <= s2 {
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t.Fatalf("Expected larger usage counting all manifest reported sizes: %d <= %d", s3, s2)
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}
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// Fetch everything
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if _, err = client.Fetch(ctx, imageName); err != nil {
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t.Fatal(err)
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}
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if s, err := image.Usage(ctx); err != nil {
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t.Fatal(err)
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} else if s != s3 {
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t.Fatalf("Expected actual usage to equal manifest reported usage of %d: got %d", s3, s)
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}
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err = image.Unpack(ctx, DefaultSnapshotter)
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if err != nil {
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t.Fatal(err)
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}
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if s, err := image.Usage(ctx, WithSnapshotUsage()); err != nil {
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t.Fatal(err)
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} else if s <= s3 {
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t.Fatalf("Expected actual usage with snapshots to be greater: %d <= %d", s, s3)
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}
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}
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func TestImageSupportedBySnapshotter_Error(t *testing.T) {
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var unsupportedImage string
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if runtime.GOOS == "windows" {
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unsupportedImage = "k8s.gcr.io/pause-amd64:3.2"
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} else {
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unsupportedImage = "mcr.microsoft.com/windows/nanoserver:1809"
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}
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ctx, cancel := testContext(t)
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defer cancel()
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client, err := newClient(t, address)
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if err != nil {
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t.Fatal(err)
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}
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defer client.Close()
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// Cleanup
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err = client.ImageService().Delete(ctx, unsupportedImage)
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if err != nil && !errdefs.IsNotFound(err) {
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t.Fatal(err)
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}
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_, err = client.Pull(ctx, unsupportedImage,
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WithSchema1Conversion,
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WithPlatform(platforms.DefaultString()),
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WithPullSnapshotter(DefaultSnapshotter),
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WithPullUnpack,
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WithUnpackOpts([]UnpackOpt{WithSnapshotterPlatformCheck()}),
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)
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if err == nil {
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t.Fatalf("expected unpacking %s for snapshotter %s to fail", unsupportedImage, DefaultSnapshotter)
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}
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}
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