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package image
import (
"context"
"encoding/json"
"io"
"os"
"path"
"testing"
"github.com/containerd/containerd"
"github.com/containerd/containerd/content"
"github.com/containerd/containerd/content/local"
"github.com/containerd/containerd/images"
"github.com/containerd/containerd/platforms"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/versions"
"github.com/docker/docker/errdefs"
"github.com/docker/docker/testutil/registry"
"github.com/opencontainers/go-digest"
"github.com/opencontainers/image-spec/specs-go"
imagespec "github.com/opencontainers/image-spec/specs-go/v1"
"gotest.tools/v3/assert"
"gotest.tools/v3/skip"
)
func TestImagePullPlatformInvalid(t *testing.T) {
skip.If(t, versions.LessThan(testEnv.DaemonAPIVersion(), "1.40"), "experimental in older versions")
defer setupTest(t)()
client := testEnv.APIClient()
ctx := context.Background()
_, err := client.ImagePull(ctx, "docker.io/library/hello-world:latest", types.ImagePullOptions{Platform: "foobar"})
assert.Assert(t, err != nil)
assert.ErrorContains(t, err, "unknown operating system or architecture")
assert.Assert(t, errdefs.IsInvalidParameter(err))
}
func createTestImage(ctx context.Context, t testing.TB, store content.Store) imagespec.Descriptor {
w, err := store.Writer(ctx, content.WithRef("layer"))
assert.NilError(t, err)
defer w.Close()
// Empty layer with just a root dir
const layer = `./0000775000000000000000000000000014201045023007702 5ustar rootroot`
_, err = w.Write([]byte(layer))
assert.NilError(t, err)
err = w.Commit(ctx, int64(len(layer)), digest.FromBytes([]byte(layer)))
assert.NilError(t, err)
layerDigest := w.Digest()
w.Close()
platform := platforms.DefaultSpec()
img := imagespec.Image{
Architecture: platform.Architecture,
OS: platform.OS,
RootFS: imagespec.RootFS{Type: "layers", DiffIDs: []digest.Digest{layerDigest}},
Config: imagespec.ImageConfig{WorkingDir: "/"},
}
imgJSON, err := json.Marshal(img)
assert.NilError(t, err)
w, err = store.Writer(ctx, content.WithRef("config"))
assert.NilError(t, err)
defer w.Close()
_, err = w.Write(imgJSON)
assert.NilError(t, err)
assert.NilError(t, w.Commit(ctx, int64(len(imgJSON)), digest.FromBytes(imgJSON)))
configDigest := w.Digest()
w.Close()
info, err := store.Info(ctx, layerDigest)
assert.NilError(t, err)
manifest := imagespec.Manifest{
Versioned: specs.Versioned{
SchemaVersion: 2,
},
MediaType: images.MediaTypeDockerSchema2Manifest,
Config: imagespec.Descriptor{
MediaType: images.MediaTypeDockerSchema2Config,
Digest: configDigest,
Size: int64(len(imgJSON)),
},
Layers: []imagespec.Descriptor{{
MediaType: images.MediaTypeDockerSchema2Layer,
Digest: layerDigest,
Size: info.Size,
}},
}
manifestJSON, err := json.Marshal(manifest)
assert.NilError(t, err)
w, err = store.Writer(ctx, content.WithRef("manifest"))
assert.NilError(t, err)
defer w.Close()
_, err = w.Write(manifestJSON)
assert.NilError(t, err)
assert.NilError(t, w.Commit(ctx, int64(len(manifestJSON)), digest.FromBytes(manifestJSON)))
manifestDigest := w.Digest()
w.Close()
return imagespec.Descriptor{
MediaType: images.MediaTypeDockerSchema2Manifest,
Digest: manifestDigest,
Size: int64(len(manifestJSON)),
}
}
// Make sure that pulling by an already cached digest but for a different ref (that should not have that digest)
// verifies with the remote that the digest exists in that repo.
func TestImagePullStoredfDigestForOtherRepo(t *testing.T) {
skip.If(t, testEnv.IsRemoteDaemon, "cannot run daemon when remote daemon")
skip.If(t, testEnv.OSType == "windows", "We don't run a test registry on Windows")
skip.If(t, testEnv.IsRootless, "Rootless has a different view of localhost (needed for test registry access)")
defer setupTest(t)()
reg := registry.NewV2(t, registry.WithStdout(os.Stdout), registry.WithStderr(os.Stderr))
defer reg.Close()
reg.WaitReady(t)
ctx := context.Background()
// First create an image and upload it to our local registry
// Then we'll download it so that we can make sure the content is available in dockerd's manifest cache.
// Then we'll try to pull the same digest but with a different repo name.
dir := t.TempDir()
store, err := local.NewStore(dir)
assert.NilError(t, err)
desc := createTestImage(ctx, t, store)
remote := path.Join(registry.DefaultURL, "test:latest")
c8dClient, err := containerd.New("", containerd.WithServices(containerd.WithContentStore(store)))
assert.NilError(t, err)
c8dClient.Push(ctx, remote, desc)
assert.NilError(t, err)
client := testEnv.APIClient()
rdr, err := client.ImagePull(ctx, remote, types.ImagePullOptions{})
assert.NilError(t, err)
defer rdr.Close()
io.Copy(io.Discard, rdr)
// Now, pull a totally different repo with a the same digest
rdr, err = client.ImagePull(ctx, path.Join(registry.DefaultURL, "other:image@"+desc.Digest.String()), types.ImagePullOptions{})
if rdr != nil {
rdr.Close()
}
assert.Assert(t, err != nil, "Expected error, got none: %v", err)
assert.Assert(t, errdefs.IsNotFound(err), err)
}
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