Tonis Tiigi
71edf28d8e
Verify imagetools copies signatures only for attestation manifests and does not copy image-manifest signatures or unsupported referrers. Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
1058 lines
37 KiB
Go
1058 lines
37 KiB
Go
package tests
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import (
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"bytes"
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"context"
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"encoding/json"
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"os"
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"os/exec"
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"path"
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"path/filepath"
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"testing"
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"github.com/containerd/containerd/v2/core/content"
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"github.com/containerd/containerd/v2/core/images"
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"github.com/containerd/containerd/v2/core/remotes/docker"
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"github.com/containerd/continuity/fs/fstest"
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"github.com/containerd/errdefs"
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"github.com/containerd/platforms"
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"github.com/distribution/reference"
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"github.com/docker/buildx/util/resolver"
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"github.com/moby/buildkit/util/testutil/integration"
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"github.com/opencontainers/go-digest"
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"github.com/opencontainers/image-spec/specs-go"
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ocispecs "github.com/opencontainers/image-spec/specs-go/v1"
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"github.com/pkg/errors"
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"github.com/stretchr/testify/require"
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)
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var imagetoolsTests = []func(t *testing.T, sb integration.Sandbox){
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testImagetoolsCopyManifest,
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testImagetoolsCopyIndex,
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testImagetoolsInspectAndFilter,
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testImagetoolsCreatePlatformFilter,
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testImagetoolsAppend,
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testImagetoolsFile,
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testImagetoolsAnnotation,
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testImagetoolsMergeSources,
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testImagetoolsMergeSourcesWithAttestations,
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testImagetoolsMergeSourcesWithFallbackAttestations,
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testImagetoolsCopyAttestationWithSignature,
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}
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// testImagetoolsCopyManifest verifies create/inspect behavior for a single-platform image.
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func testImagetoolsCopyManifest(t *testing.T, sb integration.Sandbox) {
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if !isDockerContainerWorker(sb) {
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t.Skip("only testing with docker-container worker, imagetools only runs on docker-container")
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}
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dir := createDockerfile(t)
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registry, err := sb.NewRegistry()
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if errors.Is(err, integration.ErrRequirements) {
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t.Skip(err.Error())
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}
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require.NoError(t, err)
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target := registry + "/buildx/imtools-manifest:latest"
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out, err := buildCmd(sb, withArgs("-t", target, "--push", "--platform=linux/amd64", "--provenance=false", dir))
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require.NoError(t, err, string(out))
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cmd := buildxCmd(sb, withArgs("imagetools", "inspect", target, "--raw"))
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dt, err := cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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var mfst ocispecs.Manifest
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err = json.Unmarshal(dt, &mfst)
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require.NoError(t, err)
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require.Equal(t, images.MediaTypeDockerSchema2Manifest, mfst.MediaType)
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registry2, err := sb.NewRegistry()
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require.NoError(t, err)
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target2 := registry2 + "/buildx/imtools2-manifest:latest"
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cmd = buildxCmd(sb, withArgs("imagetools", "create", "--metadata-file", path.Join(dir, "md.json"), "-t", target2, target))
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dt, err = cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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mddt, err := os.ReadFile(filepath.Join(dir, "md.json"))
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require.NoError(t, err)
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type mdT struct {
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ImageDescriptor ocispecs.Descriptor `json:"containerimage.descriptor"`
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ImageName string `json:"image.name"`
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}
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var md mdT
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err = json.Unmarshal(mddt, &md)
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require.NoError(t, err)
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require.NotEmpty(t, md.ImageDescriptor)
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require.Equal(t, registry2+"/buildx/imtools2-manifest", md.ImageName)
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cmd = buildxCmd(sb, withArgs("imagetools", "inspect", target2, "--raw"))
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dt, err = cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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var idx2 ocispecs.Index
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err = json.Unmarshal(dt, &idx2)
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require.NoError(t, err)
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require.Equal(t, images.MediaTypeDockerSchema2ManifestList, idx2.MediaType)
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require.Equal(t, 1, len(idx2.Manifests))
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cmd = buildxCmd(sb, withArgs("imagetools", "inspect", target2+"@"+string(idx2.Manifests[0].Digest), "--raw"))
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dt, err = cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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var mfst2 ocispecs.Manifest
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err = json.Unmarshal(dt, &mfst2)
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require.NoError(t, err)
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require.Equal(t, images.MediaTypeDockerSchema2Manifest, mfst2.MediaType)
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require.Equal(t, mfst.Config.Digest, mfst2.Config.Digest)
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require.Equal(t, len(mfst.Layers), len(mfst2.Layers))
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for i := range mfst.Layers {
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require.Equal(t, mfst.Layers[i].Digest, mfst2.Layers[i].Digest)
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}
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cmd = buildxCmd(sb, withArgs("imagetools", "create", "--prefer-index=false", "-t", target2+"-not-index", target))
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dt, err = cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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cmd = buildxCmd(sb, withArgs("imagetools", "inspect", target2+"-not-index", "--raw"))
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dt, err = cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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var idx3 ocispecs.Manifest
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err = json.Unmarshal(dt, &idx3)
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require.NoError(t, err)
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require.Equal(t, images.MediaTypeDockerSchema2Manifest, idx3.MediaType)
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}
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// testImagetoolsCopyIndex verifies create/inspect behavior for a multi-platform index.
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func testImagetoolsCopyIndex(t *testing.T, sb integration.Sandbox) {
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if !isDockerContainerWorker(sb) {
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t.Skip("only testing with docker-container worker, imagetools only runs on docker-container")
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}
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dir := createDockerfile(t)
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registry, err := sb.NewRegistry()
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if errors.Is(err, integration.ErrRequirements) {
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t.Skip(err.Error())
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}
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require.NoError(t, err)
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target := registry + "/buildx/imtools:latest"
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out, err := buildCmd(sb, withArgs("-t", target, "--push", "--platform=linux/amd64,linux/arm64", "--provenance=false", dir))
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require.NoError(t, err, string(out))
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cmd := buildxCmd(sb, withArgs("imagetools", "inspect", target, "--raw"))
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dt, err := cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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sourceDigest := digest.FromBytes(dt)
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var idx ocispecs.Index
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err = json.Unmarshal(dt, &idx)
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require.NoError(t, err)
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require.Equal(t, images.MediaTypeDockerSchema2ManifestList, idx.MediaType)
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require.Equal(t, 2, len(idx.Manifests))
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registry2, err := sb.NewRegistry()
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require.NoError(t, err)
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target2 := registry2 + "/buildx/imtools2:latest"
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cmd = buildxCmd(sb, withArgs("imagetools", "create", "--metadata-file", path.Join(dir, "md.json"), "-t", target2, target))
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dt, err = cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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mddt, err := os.ReadFile(filepath.Join(dir, "md.json"))
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require.NoError(t, err)
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type mdT struct {
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ImageDescriptor ocispecs.Descriptor `json:"containerimage.descriptor"`
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ImageName string `json:"image.name"`
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}
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var md mdT
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err = json.Unmarshal(mddt, &md)
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require.NoError(t, err)
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require.NotEmpty(t, md.ImageDescriptor)
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require.Equal(t, registry2+"/buildx/imtools2", md.ImageName)
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require.Equal(t, sourceDigest, md.ImageDescriptor.Digest)
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cmd = buildxCmd(sb, withArgs("imagetools", "inspect", target2, "--raw"))
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dt, err = cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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require.Equal(t, sourceDigest, digest.FromBytes(dt))
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var idx2 ocispecs.Index
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err = json.Unmarshal(dt, &idx2)
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require.NoError(t, err)
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require.Equal(t, images.MediaTypeDockerSchema2ManifestList, idx2.MediaType)
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require.Equal(t, len(idx.Manifests), len(idx2.Manifests))
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for i := range idx.Manifests {
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require.Equal(t, idx.Manifests[i].Digest, idx2.Manifests[i].Digest)
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}
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cmd = buildxCmd(sb, withArgs("imagetools", "create", "--prefer-index=false", "-t", target2+"-still-index", target))
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dt, err = cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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cmd = buildxCmd(sb, withArgs("imagetools", "inspect", target2+"-still-index", "--raw"))
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dt, err = cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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var idx3 ocispecs.Index
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err = json.Unmarshal(dt, &idx3)
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require.NoError(t, err)
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require.Equal(t, images.MediaTypeDockerSchema2ManifestList, idx3.MediaType)
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require.Equal(t, len(idx.Manifests), len(idx3.Manifests))
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for i := range idx.Manifests {
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require.Equal(t, idx.Manifests[i].Digest, idx3.Manifests[i].Digest)
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}
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}
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// testImagetoolsInspectAndFilter verifies inspect output and digest-based platform selection.
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func testImagetoolsInspectAndFilter(t *testing.T, sb integration.Sandbox) {
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if !isDockerContainerWorker(sb) {
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t.Skip("only testing with docker-container worker, imagetools only runs on docker-container")
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}
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dir := createDockerfile(t)
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registry, err := sb.NewRegistry()
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if errors.Is(err, integration.ErrRequirements) {
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t.Skip(err.Error())
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}
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require.NoError(t, err)
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target := registry + "/buildx/imtools:latest"
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out, err := buildCmd(sb, withArgs("-t", target, "--push", "--platform=linux/amd64,linux/arm64", "--provenance=false", dir))
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require.NoError(t, err, string(out))
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cmd := buildxCmd(sb, withArgs("imagetools", "inspect", target, "--raw"))
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dt, err := cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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var idx ocispecs.Index
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err = json.Unmarshal(dt, &idx)
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require.NoError(t, err)
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require.Equal(t, 2, len(idx.Manifests))
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mfst := idx.Manifests[0]
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require.Equal(t, "linux/amd64", platforms.Format(*mfst.Platform))
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mfst = idx.Manifests[1]
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require.Equal(t, "linux/arm64", platforms.Format(*mfst.Platform))
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// create arm64 image only
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cmd = buildxCmd(sb, withArgs("imagetools", "create", "-t", target+"-arm64", target+"@"+string(idx.Manifests[1].Digest)))
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dt, err = cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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cmd = buildxCmd(sb, withArgs("imagetools", "inspect", target+"-arm64", "--raw"))
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dt, err = cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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var idx2 ocispecs.Index
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err = json.Unmarshal(dt, &idx2)
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require.NoError(t, err)
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require.Equal(t, 1, len(idx2.Manifests))
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require.Equal(t, idx.Manifests[1].Digest, idx2.Manifests[0].Digest)
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require.Equal(t, platforms.Format(*idx.Manifests[1].Platform), platforms.Format(*idx2.Manifests[0].Platform))
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}
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// testImagetoolsCreatePlatformFilter verifies create --platform keeps only the
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// selected platform and its matching attestation descriptor.
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func testImagetoolsCreatePlatformFilter(t *testing.T, sb integration.Sandbox) {
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if !isDockerContainerWorker(sb) {
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t.Skip("only testing with docker-container worker, imagetools only runs on docker-container")
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}
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dir := createDockerfileWithArches(t, "amd64", "arm64")
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registry, err := sb.NewRegistry()
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if errors.Is(err, integration.ErrRequirements) {
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t.Skip(err.Error())
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}
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require.NoError(t, err)
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source := registry + "/buildx/imtools-platform-filter-src:latest"
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out, err := buildCmd(sb, withArgs(
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"--output", "type=image,name="+source+",push=true,oci-mediatypes=true,oci-artifact=true",
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"--platform=linux/amd64,linux/arm64",
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"--provenance=mode=min",
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dir,
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))
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require.NoError(t, err, string(out))
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cmd := buildxCmd(sb, withArgs("imagetools", "inspect", source, "--raw"))
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dt, err := cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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var srcIdx ocispecs.Index
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err = json.Unmarshal(dt, &srcIdx)
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require.NoError(t, err)
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require.Len(t, srcIdx.Manifests, 4)
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var arm64Manifest ocispecs.Descriptor
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for _, desc := range srcIdx.Manifests {
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if desc.Platform != nil && platforms.Format(*desc.Platform) == "linux/arm64" {
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arm64Manifest = desc
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break
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}
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}
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require.NotEmpty(t, arm64Manifest.Digest)
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cmd = buildxCmd(sb, withArgs("imagetools", "create", "--dry-run", "--platform=linux/arm64", source))
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dt, err = cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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var dryRunIdx ocispecs.Index
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err = json.Unmarshal(dt, &dryRunIdx)
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require.NoError(t, err)
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require.Len(t, dryRunIdx.Manifests, 2)
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platformCount := 0
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attestationCount := 0
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for _, desc := range dryRunIdx.Manifests {
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if desc.Annotations["vnd.docker.reference.type"] == "attestation-manifest" {
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attestationCount++
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require.Equal(t, arm64Manifest.Digest.String(), desc.Annotations["vnd.docker.reference.digest"])
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continue
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}
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platformCount++
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require.NotNil(t, desc.Platform)
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require.Equal(t, "linux/arm64", platforms.Format(*desc.Platform))
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require.Equal(t, arm64Manifest.Digest, desc.Digest)
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}
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require.Equal(t, 1, platformCount)
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require.Equal(t, 1, attestationCount)
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target := registry + "/buildx/imtools-platform-filter-dst:latest"
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cmd = buildxCmd(sb, withArgs("imagetools", "create", "--platform=linux/arm64", "-t", target, source))
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dt, err = cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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cmd = buildxCmd(sb, withArgs("imagetools", "inspect", target, "--raw"))
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dt, err = cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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var filteredIdx ocispecs.Index
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err = json.Unmarshal(dt, &filteredIdx)
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require.NoError(t, err)
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require.Len(t, filteredIdx.Manifests, 2)
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platformCount = 0
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attestationCount = 0
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for _, desc := range filteredIdx.Manifests {
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if desc.Annotations["vnd.docker.reference.type"] == "attestation-manifest" {
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attestationCount++
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require.Equal(t, arm64Manifest.Digest.String(), desc.Annotations["vnd.docker.reference.digest"])
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continue
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}
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platformCount++
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require.NotNil(t, desc.Platform)
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require.Equal(t, "linux/arm64", platforms.Format(*desc.Platform))
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require.Equal(t, arm64Manifest.Digest, desc.Digest)
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}
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require.Equal(t, 1, platformCount)
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require.Equal(t, 1, attestationCount)
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}
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// testImagetoolsAppend verifies create --append adds a new source onto an
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// existing target image and rewrites it as a combined index.
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func testImagetoolsAppend(t *testing.T, sb integration.Sandbox) {
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if !isDockerContainerWorker(sb) {
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t.Skip("only testing with docker-container worker, imagetools only runs on docker-container")
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}
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dir := createDockerfileWithArches(t, "amd64", "arm64")
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registry, err := sb.NewRegistry()
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if errors.Is(err, integration.ErrRequirements) {
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t.Skip(err.Error())
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}
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require.NoError(t, err)
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target := registry + "/buildx/imtools-append-target:latest"
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out, err := buildCmd(sb, withArgs("-t", target, "--push", "--platform=linux/amd64", "--provenance=false", dir))
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require.NoError(t, err, string(out))
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cmd := buildxCmd(sb, withArgs("imagetools", "inspect", target, "--raw"))
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dt, err := cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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var amd64Manifest ocispecs.Manifest
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err = json.Unmarshal(dt, &amd64Manifest)
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require.NoError(t, err)
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require.Equal(t, images.MediaTypeDockerSchema2Manifest, amd64Manifest.MediaType)
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amd64Digest := digest.FromBytes(dt)
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source := registry + "/buildx/imtools-append-source:latest"
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out, err = buildCmd(sb, withArgs("-t", source, "--push", "--platform=linux/arm64", "--provenance=false", dir))
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require.NoError(t, err, string(out))
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cmd = buildxCmd(sb, withArgs("imagetools", "inspect", source, "--raw"))
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dt, err = cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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var arm64Manifest ocispecs.Manifest
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err = json.Unmarshal(dt, &arm64Manifest)
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require.NoError(t, err)
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require.Equal(t, images.MediaTypeDockerSchema2Manifest, arm64Manifest.MediaType)
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arm64Digest := digest.FromBytes(dt)
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cmd = buildxCmd(sb, withArgs("imagetools", "create", "--append", "-t", target, source))
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dt, err = cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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cmd = buildxCmd(sb, withArgs("imagetools", "inspect", target, "--raw"))
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dt, err = cmd.CombinedOutput()
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require.NoError(t, err, string(dt))
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var idx ocispecs.Index
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err = json.Unmarshal(dt, &idx)
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require.NoError(t, err)
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require.Equal(t, images.MediaTypeDockerSchema2ManifestList, idx.MediaType)
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require.Len(t, idx.Manifests, 2)
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platformsByDigest := map[digest.Digest]string{}
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for _, desc := range idx.Manifests {
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require.NotNil(t, desc.Platform)
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platformsByDigest[desc.Digest] = platforms.Format(*desc.Platform)
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}
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require.Equal(t, "linux/amd64", platformsByDigest[amd64Digest])
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require.Equal(t, "linux/arm64", platformsByDigest[arm64Digest])
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}
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// testImagetoolsFile verifies create --file reads a source descriptor from disk
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// and resolves it against the target repository.
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func testImagetoolsFile(t *testing.T, sb integration.Sandbox) {
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if !isDockerContainerWorker(sb) {
|
|
t.Skip("only testing with docker-container worker, imagetools only runs on docker-container")
|
|
}
|
|
|
|
dir := createDockerfile(t)
|
|
registry, err := sb.NewRegistry()
|
|
if errors.Is(err, integration.ErrRequirements) {
|
|
t.Skip(err.Error())
|
|
}
|
|
require.NoError(t, err)
|
|
|
|
source := registry + "/buildx/imtools-file:latest"
|
|
out, err := buildCmd(sb, withArgs("-t", source, "--push", "--platform=linux/amd64", "--provenance=false", dir))
|
|
require.NoError(t, err, string(out))
|
|
|
|
cmd := buildxCmd(sb, withArgs("imagetools", "inspect", source, "--raw"))
|
|
dt, err := cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
var sourceManifest ocispecs.Manifest
|
|
err = json.Unmarshal(dt, &sourceManifest)
|
|
require.NoError(t, err)
|
|
sourceDesc := ocispecs.Descriptor{
|
|
MediaType: sourceManifest.MediaType,
|
|
Digest: digest.FromBytes(dt),
|
|
Size: int64(len(dt)),
|
|
}
|
|
|
|
descJSON, err := json.Marshal(sourceDesc)
|
|
require.NoError(t, err)
|
|
descPath := filepath.Join(dir, "source-descriptor.json")
|
|
err = os.WriteFile(descPath, descJSON, 0o644)
|
|
require.NoError(t, err)
|
|
|
|
target := registry + "/buildx/imtools-file:from-file"
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "create", "--file", descPath, "-t", target))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "inspect", target, "--raw"))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
var idx ocispecs.Index
|
|
err = json.Unmarshal(dt, &idx)
|
|
require.NoError(t, err)
|
|
require.Equal(t, images.MediaTypeDockerSchema2ManifestList, idx.MediaType)
|
|
require.Len(t, idx.Manifests, 1)
|
|
require.Equal(t, sourceDesc.Digest, idx.Manifests[0].Digest)
|
|
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "inspect", target+"@"+string(idx.Manifests[0].Digest), "--raw"))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
var copiedManifest ocispecs.Manifest
|
|
err = json.Unmarshal(dt, &copiedManifest)
|
|
require.NoError(t, err)
|
|
require.Equal(t, sourceManifest.Config.Digest, copiedManifest.Config.Digest)
|
|
require.Equal(t, len(sourceManifest.Layers), len(copiedManifest.Layers))
|
|
}
|
|
|
|
// testImagetoolsAnnotation verifies index and manifest annotations added by imagetools create.
|
|
func testImagetoolsAnnotation(t *testing.T, sb integration.Sandbox) {
|
|
if !isDockerContainerWorker(sb) {
|
|
t.Skip("only testing with docker-container worker, imagetools only runs on docker-container")
|
|
}
|
|
|
|
dir := createDockerfile(t)
|
|
registry, err := sb.NewRegistry()
|
|
if errors.Is(err, integration.ErrRequirements) {
|
|
t.Skip(err.Error())
|
|
}
|
|
require.NoError(t, err)
|
|
target := registry + "/buildx/imtools:latest"
|
|
|
|
out, err := buildCmd(sb, withArgs("--output", "type=registry,oci-mediatypes=true,name="+target, "--platform=linux/amd64,linux/arm64", "--provenance=false", dir))
|
|
require.NoError(t, err, string(out))
|
|
|
|
cmd := buildxCmd(sb, withArgs("imagetools", "inspect", target, "--raw"))
|
|
dt, err := cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
var idx ocispecs.Index
|
|
err = json.Unmarshal(dt, &idx)
|
|
require.NoError(t, err)
|
|
require.Empty(t, idx.Annotations)
|
|
|
|
imagetoolsCmd := func(source []string) *exec.Cmd {
|
|
args := []string{"imagetools", "create", "-t", target, "--annotation", "index:foo=bar", "--annotation", "index:bar=baz",
|
|
"--annotation", "manifest-descriptor:foo=bar", "--annotation", "manifest-descriptor[linux/amd64]:bar=baz"}
|
|
args = append(args, source...)
|
|
return buildxCmd(sb, withArgs(args...))
|
|
}
|
|
sources := [][]string{
|
|
{
|
|
target,
|
|
},
|
|
{
|
|
target + "@" + string(idx.Manifests[0].Digest),
|
|
target + "@" + string(idx.Manifests[1].Digest),
|
|
},
|
|
}
|
|
for _, source := range sources {
|
|
cmd = imagetoolsCmd(source)
|
|
dt, err = cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
newTarget := registry + "/buildx/imtools:annotations"
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "create", "-t", newTarget, target))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "inspect", newTarget, "--raw"))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
err = json.Unmarshal(dt, &idx)
|
|
require.NoError(t, err)
|
|
require.Len(t, idx.Annotations, 2)
|
|
require.Equal(t, "bar", idx.Annotations["foo"])
|
|
require.Equal(t, "baz", idx.Annotations["bar"])
|
|
require.Len(t, idx.Manifests, 2)
|
|
for _, mfst := range idx.Manifests {
|
|
require.Equal(t, "bar", mfst.Annotations["foo"])
|
|
if platforms.Format(*mfst.Platform) == "linux/amd64" {
|
|
require.Equal(t, "baz", mfst.Annotations["bar"])
|
|
} else {
|
|
require.Empty(t, mfst.Annotations["bar"])
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// testImagetoolsMergeSources verifies create merges manifests from distinct source registries.
|
|
func testImagetoolsMergeSources(t *testing.T, sb integration.Sandbox) {
|
|
testImagetoolsMergeSourcesWithMode(t, sb, imagetoolsMergeNoAttestations)
|
|
}
|
|
|
|
// testImagetoolsMergeSourcesWithAttestations verifies merged sources retain attestation manifests.
|
|
func testImagetoolsMergeSourcesWithAttestations(t *testing.T, sb integration.Sandbox) {
|
|
testImagetoolsMergeSourcesWithMode(t, sb, imagetoolsMergeInlineAttestations)
|
|
}
|
|
|
|
// testImagetoolsMergeSourcesWithFallbackAttestations verifies merged sources
|
|
// pull a copied single-platform attestation via the referrers fallback tag.
|
|
func testImagetoolsMergeSourcesWithFallbackAttestations(t *testing.T, sb integration.Sandbox) {
|
|
testImagetoolsMergeSourcesWithMode(t, sb, imagetoolsMergeFallbackAttestations)
|
|
}
|
|
|
|
// testImagetoolsCopyAttestationWithSignature verifies copying an attested image
|
|
// also copies a fake sigstore bundle attached to the attestation manifest.
|
|
func testImagetoolsCopyAttestationWithSignature(t *testing.T, sb integration.Sandbox) {
|
|
if !isDockerContainerWorker(sb) {
|
|
t.Skip("only testing with docker-container worker, imagetools only runs on docker-container")
|
|
}
|
|
|
|
dir := createDockerfileWithArches(t, "amd64", "arm64")
|
|
|
|
registrySource, err := sb.NewRegistry()
|
|
if errors.Is(err, integration.ErrRequirements) {
|
|
t.Skip(err.Error())
|
|
}
|
|
require.NoError(t, err)
|
|
registryTarget, err := sb.NewRegistry()
|
|
require.NoError(t, err)
|
|
|
|
source := registrySource + "/buildx/imtools-signature-src:latest"
|
|
out, err := buildCmd(sb, withArgs(
|
|
"--output", "type=image,name="+source+",push=true,oci-mediatypes=true,oci-artifact=true",
|
|
"--platform=linux/amd64,linux/arm64",
|
|
"--provenance=mode=min",
|
|
dir,
|
|
))
|
|
require.NoError(t, err, string(out))
|
|
|
|
cmd := buildxCmd(sb, withArgs("imagetools", "inspect", source, "--raw"))
|
|
dt, err := cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
var idx ocispecs.Index
|
|
err = json.Unmarshal(dt, &idx)
|
|
require.NoError(t, err)
|
|
require.Len(t, idx.Manifests, 4)
|
|
|
|
platformManifests := make(map[digest.Digest]ocispecs.Descriptor, 2)
|
|
attestations := make([]ocispecs.Descriptor, 0, 2)
|
|
for _, desc := range idx.Manifests {
|
|
if desc.Annotations["vnd.docker.reference.type"] == "attestation-manifest" {
|
|
attestations = append(attestations, desc)
|
|
continue
|
|
}
|
|
platformManifests[desc.Digest] = desc
|
|
}
|
|
require.Len(t, platformManifests, 2)
|
|
require.Len(t, attestations, 2)
|
|
|
|
// Negative controls: signatures on image manifests, and unsupported
|
|
// artifact types, should not be copied by imagetools create.
|
|
platformSignatures := make(map[digest.Digest]ocispecs.Descriptor, len(platformManifests))
|
|
platformUnsupportedReferrers := make(map[digest.Digest]ocispecs.Descriptor, len(platformManifests))
|
|
for platformDigest, platformDesc := range platformManifests {
|
|
platformSignatures[platformDigest] = pushFakeSignatureReferrer(t, source, platformDesc)
|
|
platformUnsupportedReferrers[platformDigest] = pushFakeReferrer(
|
|
t,
|
|
source,
|
|
platformDesc,
|
|
"application/vnd.example.attachment.v1+json",
|
|
map[string]string{"example.type": "unsupported"},
|
|
)
|
|
}
|
|
|
|
signatures := make(map[digest.Digest]ocispecs.Descriptor, len(attestations))
|
|
for _, attestationDesc := range attestations {
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "inspect", source+"@"+string(attestationDesc.Digest), "--raw"))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
var attestationManifest ocispecs.Manifest
|
|
err = json.Unmarshal(dt, &attestationManifest)
|
|
require.NoError(t, err)
|
|
require.NotNil(t, attestationManifest.Subject)
|
|
_, ok := platformManifests[attestationManifest.Subject.Digest]
|
|
require.True(t, ok)
|
|
|
|
signatures[attestationDesc.Digest] = pushFakeSignatureReferrer(t, source, attestationDesc)
|
|
}
|
|
|
|
target := registryTarget + "/buildx/imtools-signature-target:latest"
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "create", "-t", target, source))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "inspect", target, "--raw"))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
var copiedIdx ocispecs.Index
|
|
err = json.Unmarshal(dt, &copiedIdx)
|
|
require.NoError(t, err)
|
|
require.Len(t, copiedIdx.Manifests, 4)
|
|
for _, attestationDesc := range attestations {
|
|
require.Contains(t, copiedIdx.Manifests, attestationDesc)
|
|
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "inspect", target+"@"+string(attestationDesc.Digest), "--raw"))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
var attestationManifest ocispecs.Manifest
|
|
err = json.Unmarshal(dt, &attestationManifest)
|
|
require.NoError(t, err)
|
|
require.NotNil(t, attestationManifest.Subject)
|
|
_, ok := platformManifests[attestationManifest.Subject.Digest]
|
|
require.True(t, ok)
|
|
|
|
signatureDesc := signatures[attestationDesc.Digest]
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "inspect", target+"@"+string(signatureDesc.Digest), "--raw"))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
var signatureManifest ocispecs.Manifest
|
|
err = json.Unmarshal(dt, &signatureManifest)
|
|
require.NoError(t, err)
|
|
require.Equal(t, "application/vnd.dev.sigstore.bundle.v0.3+json", signatureManifest.ArtifactType)
|
|
require.NotNil(t, signatureManifest.Subject)
|
|
require.Equal(t, attestationDesc.Digest, signatureManifest.Subject.Digest)
|
|
require.Equal(t, "dsse-envelope", signatureManifest.Annotations["dev.sigstore.bundle.content"])
|
|
|
|
}
|
|
|
|
// Only attestation signatures should be present after the copy. The
|
|
// negative-control referrers attached to image manifests must not exist.
|
|
for _, platformDesc := range platformManifests {
|
|
signatureDesc := platformSignatures[platformDesc.Digest]
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "inspect", target+"@"+string(signatureDesc.Digest), "--raw"))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.Error(t, err, string(dt))
|
|
|
|
unsupportedDesc := platformUnsupportedReferrers[platformDesc.Digest]
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "inspect", target+"@"+string(unsupportedDesc.Digest), "--raw"))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.Error(t, err, string(dt))
|
|
}
|
|
}
|
|
|
|
type imagetoolsMergeMode int
|
|
|
|
const (
|
|
imagetoolsMergeNoAttestations imagetoolsMergeMode = iota
|
|
imagetoolsMergeInlineAttestations
|
|
imagetoolsMergeFallbackAttestations
|
|
)
|
|
|
|
func prepareSinglePlatformFallbackAsset(t *testing.T, sb integration.Sandbox, dir, registryTarget string) string {
|
|
t.Helper()
|
|
|
|
registrySource, err := sb.NewRegistry()
|
|
if errors.Is(err, integration.ErrRequirements) {
|
|
t.Skip(err.Error())
|
|
}
|
|
require.NoError(t, err)
|
|
|
|
singleSource := registrySource + "/buildx/imtools-merge-single-src:latest"
|
|
out, err := buildCmd(sb, withArgs(
|
|
"--output", "type=image,name="+singleSource+",push=true,oci-mediatypes=true,oci-artifact=true",
|
|
"--platform=linux/arm",
|
|
"--provenance=mode=min",
|
|
dir,
|
|
))
|
|
require.NoError(t, err, string(out))
|
|
|
|
cmd := buildxCmd(sb, withArgs("imagetools", "inspect", singleSource, "--raw"))
|
|
dt, err := cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
singleSourceIndexDigest := digest.FromBytes(dt)
|
|
|
|
var singleSourceIdx ocispecs.Index
|
|
err = json.Unmarshal(dt, &singleSourceIdx)
|
|
require.NoError(t, err)
|
|
require.Len(t, singleSourceIdx.Manifests, 2)
|
|
|
|
var singleManifest, singleAttestation ocispecs.Descriptor
|
|
for _, mfst := range singleSourceIdx.Manifests {
|
|
if mfst.Annotations["vnd.docker.reference.type"] == "attestation-manifest" {
|
|
singleAttestation = mfst
|
|
continue
|
|
}
|
|
require.NotNil(t, mfst.Platform)
|
|
if mfst.Platform.OS == "linux" && mfst.Platform.Architecture == "arm" {
|
|
singleManifest = mfst
|
|
}
|
|
}
|
|
require.NotEmpty(t, singleManifest.Digest)
|
|
require.NotEmpty(t, singleAttestation.Digest)
|
|
|
|
copiedSingle := registryTarget + "/buildx/imtools-merge-single:latest"
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "create", "--prefer-index=false", "-t", copiedSingle, singleSource+"@"+string(singleManifest.Digest)))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "inspect", copiedSingle, "--raw"))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
var copiedManifest ocispecs.Manifest
|
|
err = json.Unmarshal(dt, &copiedManifest)
|
|
require.NoError(t, err)
|
|
require.Contains(t, []string{images.MediaTypeDockerSchema2Manifest, ocispecs.MediaTypeImageManifest}, copiedManifest.MediaType)
|
|
|
|
// no index was copied
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "inspect", copiedSingle+"@"+string(singleSourceIndexDigest), "--raw"))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.Error(t, err, string(dt))
|
|
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "inspect", singleSource+"@"+string(singleAttestation.Digest), "--raw"))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
var attestationManifest ocispecs.Manifest
|
|
err = json.Unmarshal(dt, &attestationManifest)
|
|
require.NoError(t, err)
|
|
require.NotNil(t, attestationManifest.Subject)
|
|
require.Equal(t, singleManifest.Digest, attestationManifest.Subject.Digest)
|
|
|
|
copiedSingleAttestation := registryTarget + "/buildx/imtools-merge-single:attestation-copy"
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "create", "--prefer-index=false", "-t", copiedSingleAttestation, singleSource+"@"+string(singleAttestation.Digest)))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
fallbackDescriptor := singleAttestation
|
|
fallbackDescriptor.ArtifactType = "application/vnd.docker.attestation.manifest.v1+json"
|
|
fallbackDescriptorJSON, err := json.Marshal(fallbackDescriptor)
|
|
require.NoError(t, err)
|
|
|
|
fallbackRef := registryTarget + "/buildx/imtools-merge-single:sha256-" + singleManifest.Digest.Encoded()
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "create", "-t", fallbackRef, string(fallbackDescriptorJSON)))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "inspect", fallbackRef, "--raw"))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
var fallbackIdx ocispecs.Index
|
|
err = json.Unmarshal(dt, &fallbackIdx)
|
|
require.NoError(t, err)
|
|
require.Len(t, fallbackIdx.Manifests, 1)
|
|
require.Equal(t, singleAttestation.Digest, fallbackIdx.Manifests[0].Digest)
|
|
require.Equal(t, "application/vnd.docker.attestation.manifest.v1+json", fallbackIdx.Manifests[0].ArtifactType)
|
|
|
|
return copiedSingle
|
|
}
|
|
|
|
func pushFakeSignatureReferrer(t *testing.T, sourceRef string, subject ocispecs.Descriptor) ocispecs.Descriptor {
|
|
return pushFakeReferrer(t, sourceRef, subject, "application/vnd.dev.sigstore.bundle.v0.3+json", map[string]string{
|
|
"dev.sigstore.bundle.content": "dsse-envelope",
|
|
"dev.sigstore.bundle.predicateType": "https://sigstore.dev/cosign/sign/v1",
|
|
"org.opencontainers.image.created": "2025-12-05T10:16:57Z",
|
|
})
|
|
}
|
|
|
|
func pushFakeReferrer(t *testing.T, sourceRef string, subject ocispecs.Descriptor, artifactType string, annotations map[string]string) ocispecs.Descriptor {
|
|
t.Helper()
|
|
|
|
repoName := mustRepoName(t, sourceRef)
|
|
|
|
configBytes := []byte("{}")
|
|
configDesc := ocispecs.Descriptor{
|
|
MediaType: "application/vnd.oci.empty.v1+json",
|
|
ArtifactType: artifactType,
|
|
Digest: digest.FromBytes(configBytes),
|
|
Size: int64(len(configBytes)),
|
|
}
|
|
|
|
layerBytes := []byte(`{"kind":"fake-referrer"}`)
|
|
layerDesc := ocispecs.Descriptor{
|
|
MediaType: artifactType,
|
|
Digest: digest.FromBytes(layerBytes),
|
|
Size: int64(len(layerBytes)),
|
|
}
|
|
|
|
signatureManifest := ocispecs.Manifest{
|
|
Versioned: specsVersioned(),
|
|
MediaType: ocispecs.MediaTypeImageManifest,
|
|
ArtifactType: artifactType,
|
|
Config: configDesc,
|
|
Layers: []ocispecs.Descriptor{layerDesc},
|
|
Subject: &subject,
|
|
Annotations: annotations,
|
|
}
|
|
signatureBytes, err := json.Marshal(signatureManifest)
|
|
require.NoError(t, err)
|
|
|
|
signatureDesc := ocispecs.Descriptor{
|
|
MediaType: ocispecs.MediaTypeImageManifest,
|
|
ArtifactType: artifactType,
|
|
Digest: digest.FromBytes(signatureBytes),
|
|
Size: int64(len(signatureBytes)),
|
|
Annotations: annotations,
|
|
}
|
|
|
|
pushRegistryObject(t, repoName, configDesc, configBytes)
|
|
pushRegistryObject(t, repoName, layerDesc, layerBytes)
|
|
pushRegistryObject(t, repoName, signatureDesc, signatureBytes)
|
|
|
|
fallbackIndex := ocispecs.Index{
|
|
Versioned: specsVersioned(),
|
|
MediaType: ocispecs.MediaTypeImageIndex,
|
|
Manifests: []ocispecs.Descriptor{signatureDesc},
|
|
}
|
|
fallbackBytes, err := json.Marshal(fallbackIndex)
|
|
require.NoError(t, err)
|
|
fallbackDesc := ocispecs.Descriptor{
|
|
MediaType: ocispecs.MediaTypeImageIndex,
|
|
Digest: digest.FromBytes(fallbackBytes),
|
|
Size: int64(len(fallbackBytes)),
|
|
}
|
|
pushRegistryObject(t, repoName+":sha256-"+subject.Digest.Encoded(), fallbackDesc, fallbackBytes)
|
|
|
|
return signatureDesc
|
|
}
|
|
|
|
func pushRegistryObject(t *testing.T, ref string, desc ocispecs.Descriptor, dt []byte) {
|
|
t.Helper()
|
|
|
|
ctx := context.TODO()
|
|
r := docker.NewResolver(docker.ResolverOptions{
|
|
Hosts: resolver.NewRegistryConfig(map[string]resolver.RegistryConfig{}),
|
|
})
|
|
p, err := r.Pusher(ctx, ref)
|
|
require.NoError(t, err)
|
|
cw, err := p.Push(ctx, desc)
|
|
if errdefs.IsAlreadyExists(err) {
|
|
return
|
|
}
|
|
require.NoError(t, err)
|
|
err = content.Copy(ctx, cw, bytes.NewReader(dt), desc.Size, desc.Digest)
|
|
if errdefs.IsAlreadyExists(err) {
|
|
return
|
|
}
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
func mustRepoName(t *testing.T, ref string) string {
|
|
t.Helper()
|
|
|
|
named, err := reference.ParseNormalizedNamed(ref)
|
|
require.NoError(t, err)
|
|
return named.Name()
|
|
}
|
|
|
|
func specsVersioned() specs.Versioned {
|
|
return specs.Versioned{SchemaVersion: 2}
|
|
}
|
|
|
|
func testImagetoolsMergeSourcesWithMode(t *testing.T, sb integration.Sandbox, mode imagetoolsMergeMode) {
|
|
if !isDockerContainerWorker(sb) {
|
|
t.Skip("only testing with docker-container worker, imagetools only runs on docker-container")
|
|
}
|
|
|
|
dir := createDockerfileWithArches(t, "amd64", "arm64", "riscv64", "ppc64le", "arm")
|
|
|
|
registry1, err := sb.NewRegistry()
|
|
if errors.Is(err, integration.ErrRequirements) {
|
|
t.Skip(err.Error())
|
|
}
|
|
require.NoError(t, err)
|
|
registry2, err := sb.NewRegistry()
|
|
require.NoError(t, err)
|
|
registry3, err := sb.NewRegistry()
|
|
require.NoError(t, err)
|
|
registryMerged, err := sb.NewRegistry()
|
|
require.NoError(t, err)
|
|
registrySingleCopied, err := sb.NewRegistry()
|
|
require.NoError(t, err)
|
|
|
|
multiPlatformProvenanceFlag := "--provenance=false"
|
|
if mode != imagetoolsMergeNoAttestations {
|
|
multiPlatformProvenanceFlag = "--provenance=true"
|
|
}
|
|
|
|
src1 := registry1 + "/buildx/imtools-merge-1:latest"
|
|
out, err := buildCmd(sb, withArgs("-t", src1, "--push", "--platform=linux/amd64,linux/arm64", multiPlatformProvenanceFlag, dir))
|
|
require.NoError(t, err, string(out))
|
|
|
|
src2 := registry2 + "/buildx/imtools-merge-2:latest"
|
|
out, err = buildCmd(sb, withArgs("-t", src2, "--push", "--platform=linux/riscv64,linux/ppc64le", multiPlatformProvenanceFlag, dir))
|
|
require.NoError(t, err, string(out))
|
|
|
|
var src3 string
|
|
switch mode {
|
|
case imagetoolsMergeFallbackAttestations:
|
|
src3 = prepareSinglePlatformFallbackAsset(t, sb, dir, registrySingleCopied)
|
|
default:
|
|
src3 = registry3 + "/buildx/imtools-merge-3:latest"
|
|
out, err = buildCmd(sb, withArgs("-t", src3, "--push", "--platform=linux/arm", "--provenance=false", dir))
|
|
require.NoError(t, err, string(out))
|
|
}
|
|
|
|
merged := registryMerged + "/buildx/imtools-merge:latest"
|
|
cmd := buildxCmd(sb, withArgs("imagetools", "create", "--dry-run", src1, src2, src3))
|
|
dt, err := cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
var dryRunIdx ocispecs.Index
|
|
err = json.Unmarshal(dt, &dryRunIdx)
|
|
require.NoError(t, err)
|
|
|
|
expectedManifestCount := 5
|
|
expectedAttestationCount := 0
|
|
switch mode {
|
|
case imagetoolsMergeInlineAttestations:
|
|
expectedManifestCount = 9
|
|
expectedAttestationCount = 4
|
|
case imagetoolsMergeFallbackAttestations:
|
|
expectedManifestCount = 10
|
|
expectedAttestationCount = 5
|
|
}
|
|
assertMergedIndex(t, dryRunIdx, expectedManifestCount, expectedAttestationCount)
|
|
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "create", "-t", merged, src1, src2, src3))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
cmd = buildxCmd(sb, withArgs("imagetools", "inspect", merged, "--raw"))
|
|
dt, err = cmd.CombinedOutput()
|
|
require.NoError(t, err, string(dt))
|
|
|
|
var idx ocispecs.Index
|
|
err = json.Unmarshal(dt, &idx)
|
|
require.NoError(t, err)
|
|
|
|
assertMergedIndex(t, idx, expectedManifestCount, expectedAttestationCount)
|
|
}
|
|
|
|
func assertMergedIndex(t *testing.T, idx ocispecs.Index, expectedManifestCount, expectedAttestationCount int) {
|
|
t.Helper()
|
|
|
|
require.Len(t, idx.Manifests, expectedManifestCount)
|
|
|
|
platformsFound := map[string]struct{}{}
|
|
platformDigests := map[digest.Digest]string{}
|
|
attestations := make([]ocispecs.Descriptor, 0, expectedAttestationCount)
|
|
for _, mfst := range idx.Manifests {
|
|
if mfst.Annotations["vnd.docker.reference.type"] == "attestation-manifest" {
|
|
attestations = append(attestations, mfst)
|
|
continue
|
|
}
|
|
require.NotNil(t, mfst.Platform)
|
|
platform := mfst.Platform.OS + "/" + mfst.Platform.Architecture
|
|
platformsFound[platform] = struct{}{}
|
|
platformDigests[mfst.Digest] = platform
|
|
}
|
|
|
|
require.Len(t, attestations, expectedAttestationCount)
|
|
for _, mfst := range attestations {
|
|
refDigest, ok := mfst.Annotations["vnd.docker.reference.digest"]
|
|
require.True(t, ok)
|
|
refPlatform, ok := platformDigests[digest.Digest(refDigest)]
|
|
require.True(t, ok, "attestation %s references unknown manifest %s", mfst.Digest, refDigest)
|
|
require.NotEmpty(t, refPlatform)
|
|
}
|
|
|
|
require.Len(t, platformsFound, 5)
|
|
for _, p := range []string{"linux/amd64", "linux/arm64", "linux/riscv64", "linux/ppc64le", "linux/arm"} {
|
|
_, ok := platformsFound[p]
|
|
require.True(t, ok, "missing merged platform %s", p)
|
|
}
|
|
}
|
|
|
|
func createDockerfile(t *testing.T) string {
|
|
return createDockerfileWithArches(t, "amd64", "arm64")
|
|
}
|
|
|
|
func createDockerfileWithArches(t *testing.T, archs ...string) string {
|
|
dockerfile := []byte(`
|
|
FROM scratch
|
|
ARG TARGETARCH
|
|
COPY foo-${TARGETARCH} /foo
|
|
`)
|
|
appliers := []fstest.Applier{
|
|
fstest.CreateFile("Dockerfile", dockerfile, 0600),
|
|
}
|
|
for _, arch := range archs {
|
|
appliers = append(appliers, fstest.CreateFile("foo-"+arch, []byte("foo-"+arch), 0600))
|
|
}
|
|
dir := tmpdir(t, appliers...)
|
|
return dir
|
|
}
|