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copy_test.go
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copy_test.go
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package main
import (
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"encoding/json"
"fmt"
"io/fs"
"log"
"net/http"
"net/http/httptest"
"os"
"path/filepath"
"strings"
"github.com/containers/image/v5/manifest"
"github.com/containers/image/v5/signature"
"github.com/containers/image/v5/types"
digest "github.com/opencontainers/go-digest"
imgspecv1 "github.com/opencontainers/image-spec/specs-go/v1"
"github.com/opencontainers/image-tools/image"
"gopkg.in/check.v1"
)
func init() {
check.Suite(&CopySuite{})
}
const (
v2DockerRegistryURL = "localhost:5555" // Update also policy.json
v2s1DockerRegistryURL = "localhost:5556"
knownWindowsOnlyImage = "docker://mcr.microsoft.com/windows/nanoserver:1909"
knownListImage = "docker://registry.fedoraproject.org/fedora-minimal" // could have either ":latest" or "@sha256:..." appended
)
type CopySuite struct {
cluster *openshiftCluster
registry *testRegistryV2
s1Registry *testRegistryV2
gpgHome string
}
func (s *CopySuite) SetUpSuite(c *check.C) {
if os.Getenv("SKOPEO_CONTAINER_TESTS") != "1" {
c.Skip("Not running in a container, refusing to affect user state")
}
s.cluster = startOpenshiftCluster(c) // FIXME: Set up TLS for the docker registry port instead of using "--tls-verify=false" all over the place.
for _, stream := range []string{"unsigned", "personal", "official", "naming", "cosigned", "compression", "schema1", "schema2"} {
isJSON := fmt.Sprintf(`{
"kind": "ImageStream",
"apiVersion": "v1",
"metadata": {
"name": "%s"
},
"spec": {}
}`, stream)
runCommandWithInput(c, isJSON, "oc", "create", "-f", "-")
}
// FIXME: Set up TLS for the docker registry port instead of using "--tls-verify=false" all over the place.
s.registry = setupRegistryV2At(c, v2DockerRegistryURL, false, false)
s.s1Registry = setupRegistryV2At(c, v2s1DockerRegistryURL, false, true)
s.gpgHome = c.MkDir()
os.Setenv("GNUPGHOME", s.gpgHome)
for _, key := range []string{"personal", "official"} {
batchInput := fmt.Sprintf("Key-Type: RSA\nName-Real: Test key - %s\nName-email: %s@example.com\n%%no-protection\n%%commit\n",
key, key)
runCommandWithInput(c, batchInput, gpgBinary, "--batch", "--gen-key")
out := combinedOutputOfCommand(c, gpgBinary, "--armor", "--export", fmt.Sprintf("%s@example.com", key))
err := os.WriteFile(filepath.Join(s.gpgHome, fmt.Sprintf("%s-pubkey.gpg", key)),
[]byte(out), 0600)
c.Assert(err, check.IsNil)
}
}
func (s *CopySuite) TearDownSuite(c *check.C) {
if s.registry != nil {
s.registry.tearDown(c)
}
if s.s1Registry != nil {
s.s1Registry.tearDown(c)
}
if s.cluster != nil {
s.cluster.tearDown(c)
}
}
func (s *CopySuite) TestCopyWithManifestList(c *check.C) {
dir := c.MkDir()
assertSkopeoSucceeds(c, "", "copy", knownListImage, "dir:"+dir)
}
func (s *CopySuite) TestCopyAllWithManifestList(c *check.C) {
dir := c.MkDir()
assertSkopeoSucceeds(c, "", "copy", "--all", knownListImage, "dir:"+dir)
}
func (s *CopySuite) TestCopyAllWithManifestListRoundTrip(c *check.C) {
oci1 := c.MkDir()
oci2 := c.MkDir()
dir1 := c.MkDir()
dir2 := c.MkDir()
assertSkopeoSucceeds(c, "", "copy", "--multi-arch=all", knownListImage, "oci:"+oci1)
assertSkopeoSucceeds(c, "", "copy", "--multi-arch=all", "oci:"+oci1, "dir:"+dir1)
assertSkopeoSucceeds(c, "", "copy", "--multi-arch=all", "dir:"+dir1, "oci:"+oci2)
assertSkopeoSucceeds(c, "", "copy", "--multi-arch=all", "oci:"+oci2, "dir:"+dir2)
assertDirImagesAreEqual(c, dir1, dir2)
out := combinedOutputOfCommand(c, "diff", "-urN", oci1, oci2)
c.Assert(out, check.Equals, "")
}
func (s *CopySuite) TestCopyAllWithManifestListConverge(c *check.C) {
oci1 := c.MkDir()
oci2 := c.MkDir()
dir1 := c.MkDir()
dir2 := c.MkDir()
assertSkopeoSucceeds(c, "", "copy", "--multi-arch=all", knownListImage, "oci:"+oci1)
assertSkopeoSucceeds(c, "", "copy", "--multi-arch=all", "oci:"+oci1, "dir:"+dir1)
assertSkopeoSucceeds(c, "", "copy", "--multi-arch=all", "--format", "oci", knownListImage, "dir:"+dir2)
assertSkopeoSucceeds(c, "", "copy", "--multi-arch=all", "dir:"+dir2, "oci:"+oci2)
assertDirImagesAreEqual(c, dir1, dir2)
out := combinedOutputOfCommand(c, "diff", "-urN", oci1, oci2)
c.Assert(out, check.Equals, "")
}
func (s *CopySuite) TestCopyNoneWithManifestList(c *check.C) {
dir1 := c.MkDir()
assertSkopeoSucceeds(c, "", "copy", "--multi-arch=index-only", knownListImage, "dir:"+dir1)
manifestPath := filepath.Join(dir1, "manifest.json")
readManifest, err := os.ReadFile(manifestPath)
c.Assert(err, check.IsNil)
mimeType := manifest.GuessMIMEType(readManifest)
c.Assert(mimeType, check.Equals, "application/vnd.docker.distribution.manifest.list.v2+json")
out := combinedOutputOfCommand(c, "ls", "-1", dir1)
c.Assert(out, check.Equals, "manifest.json\nversion\n")
}
func (s *CopySuite) TestCopyWithManifestListConverge(c *check.C) {
oci1 := c.MkDir()
oci2 := c.MkDir()
dir1 := c.MkDir()
dir2 := c.MkDir()
assertSkopeoSucceeds(c, "", "copy", knownListImage, "oci:"+oci1)
assertSkopeoSucceeds(c, "", "copy", "--multi-arch=all", "oci:"+oci1, "dir:"+dir1)
assertSkopeoSucceeds(c, "", "copy", "--format", "oci", knownListImage, "dir:"+dir2)
assertSkopeoSucceeds(c, "", "copy", "--multi-arch=all", "dir:"+dir2, "oci:"+oci2)
assertDirImagesAreEqual(c, dir1, dir2)
out := combinedOutputOfCommand(c, "diff", "-urN", oci1, oci2)
c.Assert(out, check.Equals, "")
}
func (s *CopySuite) TestCopyAllWithManifestListStorageFails(c *check.C) {
storage := c.MkDir()
storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
assertSkopeoFails(c, `.*destination transport .* does not support copying multiple images as a group.*`, "copy", "--multi-arch=all", knownListImage, "containers-storage:"+storage+"test")
}
func (s *CopySuite) TestCopyWithManifestListStorage(c *check.C) {
storage := c.MkDir()
storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
dir1 := c.MkDir()
dir2 := c.MkDir()
assertSkopeoSucceeds(c, "", "copy", knownListImage, "containers-storage:"+storage+"test")
assertSkopeoSucceeds(c, "", "copy", knownListImage, "dir:"+dir1)
assertSkopeoSucceeds(c, "", "copy", "containers-storage:"+storage+"test", "dir:"+dir2)
runDecompressDirs(c, "", dir1, dir2)
assertDirImagesAreEqual(c, dir1, dir2)
}
func (s *CopySuite) TestCopyWithManifestListStorageMultiple(c *check.C) {
storage := c.MkDir()
storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
dir1 := c.MkDir()
dir2 := c.MkDir()
assertSkopeoSucceeds(c, "", "--override-arch", "amd64", "copy", knownListImage, "containers-storage:"+storage+"test")
assertSkopeoSucceeds(c, "", "--override-arch", "arm64", "copy", knownListImage, "containers-storage:"+storage+"test")
assertSkopeoSucceeds(c, "", "--override-arch", "arm64", "copy", knownListImage, "dir:"+dir1)
assertSkopeoSucceeds(c, "", "copy", "containers-storage:"+storage+"test", "dir:"+dir2)
runDecompressDirs(c, "", dir1, dir2)
assertDirImagesAreEqual(c, dir1, dir2)
}
func (s *CopySuite) TestCopyWithManifestListDigest(c *check.C) {
dir1 := c.MkDir()
dir2 := c.MkDir()
oci1 := c.MkDir()
oci2 := c.MkDir()
m := combinedOutputOfCommand(c, skopeoBinary, "inspect", "--raw", knownListImage)
manifestDigest, err := manifest.Digest([]byte(m))
c.Assert(err, check.IsNil)
digest := manifestDigest.String()
assertSkopeoSucceeds(c, "", "copy", knownListImage+"@"+digest, "dir:"+dir1)
assertSkopeoSucceeds(c, "", "copy", "--multi-arch=all", knownListImage+"@"+digest, "dir:"+dir2)
assertSkopeoSucceeds(c, "", "copy", "dir:"+dir1, "oci:"+oci1)
assertSkopeoSucceeds(c, "", "copy", "dir:"+dir2, "oci:"+oci2)
out := combinedOutputOfCommand(c, "diff", "-urN", oci1, oci2)
c.Assert(out, check.Equals, "")
}
func (s *CopySuite) TestCopyWithDigestfileOutput(c *check.C) {
tempdir := c.MkDir()
dir1 := c.MkDir()
digestOutPath := filepath.Join(tempdir, "digest.txt")
assertSkopeoSucceeds(c, "", "copy", "--digestfile="+digestOutPath, knownListImage, "dir:"+dir1)
readDigest, err := os.ReadFile(digestOutPath)
c.Assert(err, check.IsNil)
_, err = digest.Parse(string(readDigest))
c.Assert(err, check.IsNil)
}
func (s *CopySuite) TestCopyWithManifestListStorageDigest(c *check.C) {
storage := c.MkDir()
storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
dir1 := c.MkDir()
dir2 := c.MkDir()
m := combinedOutputOfCommand(c, skopeoBinary, "inspect", "--raw", knownListImage)
manifestDigest, err := manifest.Digest([]byte(m))
c.Assert(err, check.IsNil)
digest := manifestDigest.String()
assertSkopeoSucceeds(c, "", "copy", knownListImage+"@"+digest, "containers-storage:"+storage+"test@"+digest)
assertSkopeoSucceeds(c, "", "copy", "containers-storage:"+storage+"test@"+digest, "dir:"+dir1)
assertSkopeoSucceeds(c, "", "copy", knownListImage+"@"+digest, "dir:"+dir2)
runDecompressDirs(c, "", dir1, dir2)
assertDirImagesAreEqual(c, dir1, dir2)
}
func (s *CopySuite) TestCopyWithManifestListStorageDigestMultipleArches(c *check.C) {
storage := c.MkDir()
storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
dir1 := c.MkDir()
dir2 := c.MkDir()
m := combinedOutputOfCommand(c, skopeoBinary, "inspect", "--raw", knownListImage)
manifestDigest, err := manifest.Digest([]byte(m))
c.Assert(err, check.IsNil)
digest := manifestDigest.String()
assertSkopeoSucceeds(c, "", "copy", knownListImage+"@"+digest, "containers-storage:"+storage+"test@"+digest)
assertSkopeoSucceeds(c, "", "copy", "containers-storage:"+storage+"test@"+digest, "dir:"+dir1)
assertSkopeoSucceeds(c, "", "copy", knownListImage+"@"+digest, "dir:"+dir2)
runDecompressDirs(c, "", dir1, dir2)
assertDirImagesAreEqual(c, dir1, dir2)
}
func (s *CopySuite) TestCopyWithManifestListStorageDigestMultipleArchesBothUseListDigest(c *check.C) {
storage := c.MkDir()
storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
m := combinedOutputOfCommand(c, skopeoBinary, "inspect", "--raw", knownListImage)
manifestDigest, err := manifest.Digest([]byte(m))
c.Assert(err, check.IsNil)
digest := manifestDigest.String()
_, err = manifest.ListFromBlob([]byte(m), manifest.GuessMIMEType([]byte(m)))
c.Assert(err, check.IsNil)
assertSkopeoSucceeds(c, "", "--override-arch=amd64", "copy", knownListImage+"@"+digest, "containers-storage:"+storage+"test@"+digest)
assertSkopeoSucceeds(c, "", "--override-arch=arm64", "copy", knownListImage+"@"+digest, "containers-storage:"+storage+"test@"+digest)
assertSkopeoFails(c, `.*reading manifest for image instance.*does not exist.*`, "--override-arch=amd64", "inspect", "containers-storage:"+storage+"test@"+digest)
assertSkopeoFails(c, `.*reading manifest for image instance.*does not exist.*`, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
i2 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
var image2 imgspecv1.Image
err = json.Unmarshal([]byte(i2), &image2)
c.Assert(err, check.IsNil)
c.Assert(image2.Architecture, check.Equals, "arm64")
}
func (s *CopySuite) TestCopyWithManifestListStorageDigestMultipleArchesFirstUsesListDigest(c *check.C) {
storage := c.MkDir()
storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
m := combinedOutputOfCommand(c, skopeoBinary, "inspect", "--raw", knownListImage)
manifestDigest, err := manifest.Digest([]byte(m))
c.Assert(err, check.IsNil)
digest := manifestDigest.String()
list, err := manifest.ListFromBlob([]byte(m), manifest.GuessMIMEType([]byte(m)))
c.Assert(err, check.IsNil)
amd64Instance, err := list.ChooseInstance(&types.SystemContext{ArchitectureChoice: "amd64"})
c.Assert(err, check.IsNil)
arm64Instance, err := list.ChooseInstance(&types.SystemContext{ArchitectureChoice: "arm64"})
c.Assert(err, check.IsNil)
assertSkopeoSucceeds(c, "", "--override-arch=amd64", "copy", knownListImage+"@"+digest, "containers-storage:"+storage+"test@"+digest)
assertSkopeoSucceeds(c, "", "--override-arch=arm64", "copy", knownListImage+"@"+arm64Instance.String(), "containers-storage:"+storage+"test@"+arm64Instance.String())
i1 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
var image1 imgspecv1.Image
err = json.Unmarshal([]byte(i1), &image1)
c.Assert(err, check.IsNil)
c.Assert(image1.Architecture, check.Equals, "amd64")
i2 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test@"+amd64Instance.String())
var image2 imgspecv1.Image
err = json.Unmarshal([]byte(i2), &image2)
c.Assert(err, check.IsNil)
c.Assert(image2.Architecture, check.Equals, "amd64")
assertSkopeoFails(c, `.*reading manifest for image instance.*does not exist.*`, "--override-arch=arm64", "inspect", "containers-storage:"+storage+"test@"+digest)
assertSkopeoFails(c, `.*reading manifest for image instance.*does not exist.*`, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
i3 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test@"+arm64Instance.String())
var image3 imgspecv1.Image
err = json.Unmarshal([]byte(i3), &image3)
c.Assert(err, check.IsNil)
c.Assert(image3.Architecture, check.Equals, "arm64")
}
func (s *CopySuite) TestCopyWithManifestListStorageDigestMultipleArchesSecondUsesListDigest(c *check.C) {
storage := c.MkDir()
storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
m := combinedOutputOfCommand(c, skopeoBinary, "inspect", "--raw", knownListImage)
manifestDigest, err := manifest.Digest([]byte(m))
c.Assert(err, check.IsNil)
digest := manifestDigest.String()
list, err := manifest.ListFromBlob([]byte(m), manifest.GuessMIMEType([]byte(m)))
c.Assert(err, check.IsNil)
amd64Instance, err := list.ChooseInstance(&types.SystemContext{ArchitectureChoice: "amd64"})
c.Assert(err, check.IsNil)
arm64Instance, err := list.ChooseInstance(&types.SystemContext{ArchitectureChoice: "arm64"})
c.Assert(err, check.IsNil)
assertSkopeoSucceeds(c, "", "--override-arch=amd64", "copy", knownListImage+"@"+amd64Instance.String(), "containers-storage:"+storage+"test@"+amd64Instance.String())
assertSkopeoSucceeds(c, "", "--override-arch=arm64", "copy", knownListImage+"@"+digest, "containers-storage:"+storage+"test@"+digest)
i1 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test@"+amd64Instance.String())
var image1 imgspecv1.Image
err = json.Unmarshal([]byte(i1), &image1)
c.Assert(err, check.IsNil)
c.Assert(image1.Architecture, check.Equals, "amd64")
assertSkopeoFails(c, `.*reading manifest for image instance.*does not exist.*`, "--override-arch=amd64", "inspect", "containers-storage:"+storage+"test@"+digest)
assertSkopeoFails(c, `.*reading manifest for image instance.*does not exist.*`, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
i2 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
var image2 imgspecv1.Image
err = json.Unmarshal([]byte(i2), &image2)
c.Assert(err, check.IsNil)
c.Assert(image2.Architecture, check.Equals, "arm64")
i3 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test@"+arm64Instance.String())
var image3 imgspecv1.Image
err = json.Unmarshal([]byte(i3), &image3)
c.Assert(err, check.IsNil)
c.Assert(image3.Architecture, check.Equals, "arm64")
}
func (s *CopySuite) TestCopyWithManifestListStorageDigestMultipleArchesThirdUsesListDigest(c *check.C) {
storage := c.MkDir()
storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
m := combinedOutputOfCommand(c, skopeoBinary, "inspect", "--raw", knownListImage)
manifestDigest, err := manifest.Digest([]byte(m))
c.Assert(err, check.IsNil)
digest := manifestDigest.String()
list, err := manifest.ListFromBlob([]byte(m), manifest.GuessMIMEType([]byte(m)))
c.Assert(err, check.IsNil)
amd64Instance, err := list.ChooseInstance(&types.SystemContext{ArchitectureChoice: "amd64"})
c.Assert(err, check.IsNil)
arm64Instance, err := list.ChooseInstance(&types.SystemContext{ArchitectureChoice: "arm64"})
c.Assert(err, check.IsNil)
assertSkopeoSucceeds(c, "", "--override-arch=amd64", "copy", knownListImage+"@"+amd64Instance.String(), "containers-storage:"+storage+"test@"+amd64Instance.String())
assertSkopeoSucceeds(c, "", "--override-arch=amd64", "copy", knownListImage+"@"+digest, "containers-storage:"+storage+"test@"+digest)
assertSkopeoSucceeds(c, "", "--override-arch=arm64", "copy", knownListImage+"@"+digest, "containers-storage:"+storage+"test@"+digest)
assertSkopeoFails(c, `.*reading manifest for image instance.*does not exist.*`, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
i1 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test@"+amd64Instance.String())
var image1 imgspecv1.Image
err = json.Unmarshal([]byte(i1), &image1)
c.Assert(err, check.IsNil)
c.Assert(image1.Architecture, check.Equals, "amd64")
i2 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
var image2 imgspecv1.Image
err = json.Unmarshal([]byte(i2), &image2)
c.Assert(err, check.IsNil)
c.Assert(image2.Architecture, check.Equals, "arm64")
i3 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test@"+arm64Instance.String())
var image3 imgspecv1.Image
err = json.Unmarshal([]byte(i3), &image3)
c.Assert(err, check.IsNil)
c.Assert(image3.Architecture, check.Equals, "arm64")
}
func (s *CopySuite) TestCopyWithManifestListStorageDigestMultipleArchesTagAndDigest(c *check.C) {
storage := c.MkDir()
storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
m := combinedOutputOfCommand(c, skopeoBinary, "inspect", "--raw", knownListImage)
manifestDigest, err := manifest.Digest([]byte(m))
c.Assert(err, check.IsNil)
digest := manifestDigest.String()
list, err := manifest.ListFromBlob([]byte(m), manifest.GuessMIMEType([]byte(m)))
c.Assert(err, check.IsNil)
amd64Instance, err := list.ChooseInstance(&types.SystemContext{ArchitectureChoice: "amd64"})
c.Assert(err, check.IsNil)
arm64Instance, err := list.ChooseInstance(&types.SystemContext{ArchitectureChoice: "arm64"})
c.Assert(err, check.IsNil)
assertSkopeoSucceeds(c, "", "--override-arch=amd64", "copy", knownListImage, "containers-storage:"+storage+"test:latest")
assertSkopeoSucceeds(c, "", "--override-arch=arm64", "copy", knownListImage+"@"+digest, "containers-storage:"+storage+"test@"+digest)
assertSkopeoFails(c, `.*reading manifest for image instance.*does not exist.*`, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
i1 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test:latest")
var image1 imgspecv1.Image
err = json.Unmarshal([]byte(i1), &image1)
c.Assert(err, check.IsNil)
c.Assert(image1.Architecture, check.Equals, "amd64")
i2 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test@"+amd64Instance.String())
var image2 imgspecv1.Image
err = json.Unmarshal([]byte(i2), &image2)
c.Assert(err, check.IsNil)
c.Assert(image2.Architecture, check.Equals, "amd64")
i3 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=amd64", "inspect", "--config", "containers-storage:"+storage+"test:latest")
var image3 imgspecv1.Image
err = json.Unmarshal([]byte(i3), &image3)
c.Assert(err, check.IsNil)
c.Assert(image3.Architecture, check.Equals, "amd64")
i4 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test@"+arm64Instance.String())
var image4 imgspecv1.Image
err = json.Unmarshal([]byte(i4), &image4)
c.Assert(err, check.IsNil)
c.Assert(image4.Architecture, check.Equals, "arm64")
i5 := combinedOutputOfCommand(c, skopeoBinary, "--override-arch=arm64", "inspect", "--config", "containers-storage:"+storage+"test@"+digest)
var image5 imgspecv1.Image
err = json.Unmarshal([]byte(i5), &image5)
c.Assert(err, check.IsNil)
c.Assert(image5.Architecture, check.Equals, "arm64")
}
func (s *CopySuite) TestCopyFailsWhenImageOSDoesNotMatchRuntimeOS(c *check.C) {
storage := c.MkDir()
storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
assertSkopeoFails(c, `.*no image found in manifest list for architecture .*, variant .*, OS .*`, "copy", knownWindowsOnlyImage, "containers-storage:"+storage+"test")
}
func (s *CopySuite) TestCopySucceedsWhenImageDoesNotMatchRuntimeButWeOverride(c *check.C) {
storage := c.MkDir()
storage = fmt.Sprintf("[vfs@%s/root+%s/runroot]", storage, storage)
assertSkopeoSucceeds(c, "", "--override-os=windows", "--override-arch=amd64", "copy", knownWindowsOnlyImage, "containers-storage:"+storage+"test")
}
func (s *CopySuite) TestCopySimpleAtomicRegistry(c *check.C) {
dir1 := c.MkDir()
dir2 := c.MkDir()
// FIXME: It would be nice to use one of the local Docker registries instead of needing an Internet connection.
// "pull": docker: → dir:
assertSkopeoSucceeds(c, "", "copy", testFQIN64, "dir:"+dir1)
// "push": dir: → atomic:
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--debug", "copy", "dir:"+dir1, "atomic:localhost:5000/myns/unsigned:unsigned")
// The result of pushing and pulling is an equivalent image, except for schema1 embedded names.
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", "atomic:localhost:5000/myns/unsigned:unsigned", "dir:"+dir2)
assertSchema1DirImagesAreEqualExceptNames(c, dir1, "libpod/busybox:amd64", dir2, "myns/unsigned:unsigned")
}
// The most basic (skopeo copy) use:
func (s *CopySuite) TestCopySimple(c *check.C) {
const ourRegistry = "docker://" + v2DockerRegistryURL + "/"
dir1 := c.MkDir()
dir2 := c.MkDir()
// FIXME: It would be nice to use one of the local Docker registries instead of needing an Internet connection.
// "pull": docker: → dir:
assertSkopeoSucceeds(c, "", "copy", "docker://k8s.gcr.io/pause", "dir:"+dir1)
// "push": dir: → docker(v2s2):
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--debug", "copy", "dir:"+dir1, ourRegistry+"pause:unsigned")
// The result of pushing and pulling is an unmodified image.
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", ourRegistry+"pause:unsigned", "dir:"+dir2)
out := combinedOutputOfCommand(c, "diff", "-urN", dir1, dir2)
c.Assert(out, check.Equals, "")
// docker v2s2 -> OCI image layout with image name
// ociDest will be created by oci: if it doesn't exist
// so don't create it here to exercise auto-creation
ociDest := "pause-latest-image"
ociImgName := "pause"
defer os.RemoveAll(ociDest)
assertSkopeoSucceeds(c, "", "copy", "docker://k8s.gcr.io/pause:latest", "oci:"+ociDest+":"+ociImgName)
_, err := os.Stat(ociDest)
c.Assert(err, check.IsNil)
// docker v2s2 -> OCI image layout without image name
ociDest = "pause-latest-noimage"
defer os.RemoveAll(ociDest)
assertSkopeoSucceeds(c, "", "copy", "docker://k8s.gcr.io/pause:latest", "oci:"+ociDest)
_, err = os.Stat(ociDest)
c.Assert(err, check.IsNil)
}
func (s *CopySuite) TestCopyEncryption(c *check.C) {
originalImageDir := c.MkDir()
encryptedImgDir := c.MkDir()
decryptedImgDir := c.MkDir()
keysDir := c.MkDir()
undecryptedImgDir := c.MkDir()
multiLayerImageDir := c.MkDir()
partiallyEncryptedImgDir := c.MkDir()
partiallyDecryptedImgDir := c.MkDir()
// Create RSA key pair
privateKey, err := rsa.GenerateKey(rand.Reader, 4096)
c.Assert(err, check.IsNil)
publicKey := &privateKey.PublicKey
privateKeyBytes := x509.MarshalPKCS1PrivateKey(privateKey)
publicKeyBytes, err := x509.MarshalPKIXPublicKey(publicKey)
c.Assert(err, check.IsNil)
err = os.WriteFile(keysDir+"/private.key", privateKeyBytes, 0644)
c.Assert(err, check.IsNil)
err = os.WriteFile(keysDir+"/public.key", publicKeyBytes, 0644)
c.Assert(err, check.IsNil)
// We can either perform encryption or decryption on the image.
// This is why use should not be able to specify both encryption and decryption
// during copy at the same time.
assertSkopeoFails(c, ".*--encryption-key and --decryption-key cannot be specified together.*",
"copy", "--encryption-key", "jwe:"+keysDir+"/public.key", "--decryption-key", keysDir+"/private.key",
"oci:"+encryptedImgDir+":encrypted", "oci:"+decryptedImgDir+":decrypted")
assertSkopeoFails(c, ".*--encryption-key and --decryption-key cannot be specified together.*",
"copy", "--decryption-key", keysDir+"/private.key", "--encryption-key", "jwe:"+keysDir+"/public.key",
"oci:"+encryptedImgDir+":encrypted", "oci:"+decryptedImgDir+":decrypted")
// Copy a standard busybox image locally
assertSkopeoSucceeds(c, "", "copy", testFQIN+":1.30.1", "oci:"+originalImageDir+":latest")
// Encrypt the image
assertSkopeoSucceeds(c, "", "copy", "--encryption-key",
"jwe:"+keysDir+"/public.key", "oci:"+originalImageDir+":latest", "oci:"+encryptedImgDir+":encrypted")
// An attempt to decrypt an encrypted image without a valid private key should fail
invalidPrivateKey, err := rsa.GenerateKey(rand.Reader, 4096)
c.Assert(err, check.IsNil)
invalidPrivateKeyBytes := x509.MarshalPKCS1PrivateKey(invalidPrivateKey)
err = os.WriteFile(keysDir+"/invalid_private.key", invalidPrivateKeyBytes, 0644)
c.Assert(err, check.IsNil)
assertSkopeoFails(c, ".*no suitable key unwrapper found or none of the private keys could be used for decryption.*",
"copy", "--decryption-key", keysDir+"/invalid_private.key",
"oci:"+encryptedImgDir+":encrypted", "oci:"+decryptedImgDir+":decrypted")
// Copy encrypted image without decrypting it
assertSkopeoSucceeds(c, "", "copy", "oci:"+encryptedImgDir+":encrypted", "oci:"+undecryptedImgDir+":encrypted")
// Original busybox image has gzipped layers. But encrypted busybox layers should
// not be of gzip type
matchLayerBlobBinaryType(c, undecryptedImgDir+"/blobs/sha256", "application/x-gzip", 0)
// Decrypt the image
assertSkopeoSucceeds(c, "", "copy", "--decryption-key", keysDir+"/private.key",
"oci:"+undecryptedImgDir+":encrypted", "oci:"+decryptedImgDir+":decrypted")
// After successful decryption we should find the gzipped layer from the
// busybox image
matchLayerBlobBinaryType(c, decryptedImgDir+"/blobs/sha256", "application/x-gzip", 1)
// Copy a standard multi layer nginx image locally
assertSkopeoSucceeds(c, "", "copy", testFQINMultiLayer, "oci:"+multiLayerImageDir+":latest")
// Partially encrypt the image
assertSkopeoSucceeds(c, "", "copy", "--encryption-key", "jwe:"+keysDir+"/public.key",
"--encrypt-layer", "1", "oci:"+multiLayerImageDir+":latest", "oci:"+partiallyEncryptedImgDir+":encrypted")
// Since the image is partially encrypted we should find layers that aren't encrypted
matchLayerBlobBinaryType(c, partiallyEncryptedImgDir+"/blobs/sha256", "application/x-gzip", 2)
// Decrypt the partially encrypted image
assertSkopeoSucceeds(c, "", "copy", "--decryption-key", keysDir+"/private.key",
"oci:"+partiallyEncryptedImgDir+":encrypted", "oci:"+partiallyDecryptedImgDir+":decrypted")
// After successful decryption we should find the gzipped layers from the nginx image
matchLayerBlobBinaryType(c, partiallyDecryptedImgDir+"/blobs/sha256", "application/x-gzip", 3)
}
func matchLayerBlobBinaryType(c *check.C, ociImageDirPath string, contentType string, matchCount int) {
files, err := os.ReadDir(ociImageDirPath)
c.Assert(err, check.IsNil)
foundCount := 0
for _, f := range files {
fileContent, err := os.Open(ociImageDirPath + "/" + f.Name())
c.Assert(err, check.IsNil)
layerContentType, err := getFileContentType(fileContent)
c.Assert(err, check.IsNil)
if layerContentType == contentType {
foundCount = foundCount + 1
}
}
c.Assert(foundCount, check.Equals, matchCount)
}
func getFileContentType(out *os.File) (string, error) {
buffer := make([]byte, 512)
_, err := out.Read(buffer)
if err != nil {
return "", err
}
contentType := http.DetectContentType(buffer)
return contentType, nil
}
// Check whether dir: images in dir1 and dir2 are equal, ignoring schema1 signatures.
func assertDirImagesAreEqual(c *check.C, dir1, dir2 string) {
// The manifests may have different JWS signatures; so, compare the manifests by digests, which
// strips the signatures.
digests := []digest.Digest{}
for _, dir := range []string{dir1, dir2} {
manifestPath := filepath.Join(dir, "manifest.json")
m, err := os.ReadFile(manifestPath)
c.Assert(err, check.IsNil)
digest, err := manifest.Digest(m)
c.Assert(err, check.IsNil)
digests = append(digests, digest)
}
c.Assert(digests[0], check.Equals, digests[1])
// Then compare the rest file by file.
out := combinedOutputOfCommand(c, "diff", "-urN", "-x", "manifest.json", dir1, dir2)
c.Assert(out, check.Equals, "")
}
// Check whether schema1 dir: images in dir1 and dir2 are equal, ignoring schema1 signatures and the embedded path/tag values, which should have the expected values.
func assertSchema1DirImagesAreEqualExceptNames(c *check.C, dir1, ref1, dir2, ref2 string) {
// The manifests may have different JWS signatures and names; so, unmarshal and delete these elements.
manifests := []map[string]interface{}{}
for dir, ref := range map[string]string{dir1: ref1, dir2: ref2} {
manifestPath := filepath.Join(dir, "manifest.json")
m, err := os.ReadFile(manifestPath)
c.Assert(err, check.IsNil)
data := map[string]interface{}{}
err = json.Unmarshal(m, &data)
c.Assert(err, check.IsNil)
c.Assert(data["schemaVersion"], check.Equals, float64(1))
colon := strings.LastIndex(ref, ":")
c.Assert(colon, check.Not(check.Equals), -1)
c.Assert(data["name"], check.Equals, ref[:colon])
c.Assert(data["tag"], check.Equals, ref[colon+1:])
for _, key := range []string{"signatures", "name", "tag"} {
delete(data, key)
}
manifests = append(manifests, data)
}
c.Assert(manifests[0], check.DeepEquals, manifests[1])
// Then compare the rest file by file.
out := combinedOutputOfCommand(c, "diff", "-urN", "-x", "manifest.json", dir1, dir2)
c.Assert(out, check.Equals, "")
}
// Streaming (skopeo copy)
func (s *CopySuite) TestCopyStreaming(c *check.C) {
dir1 := c.MkDir()
dir2 := c.MkDir()
// FIXME: It would be nice to use one of the local Docker registries instead of needing an Internet connection.
// streaming: docker: → atomic:
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--debug", "copy", testFQIN64, "atomic:localhost:5000/myns/unsigned:streaming")
// Compare (copies of) the original and the copy:
assertSkopeoSucceeds(c, "", "copy", testFQIN64, "dir:"+dir1)
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", "atomic:localhost:5000/myns/unsigned:streaming", "dir:"+dir2)
assertSchema1DirImagesAreEqualExceptNames(c, dir1, "libpod/busybox:amd64", dir2, "myns/unsigned:streaming")
// FIXME: Also check pushing to docker://
}
// OCI round-trip testing. It's very important to make sure that OCI <-> Docker
// conversion works (while skopeo handles many things, one of the most obvious
// benefits of a tool like skopeo is that you can use OCI tooling to create an
// image and then as the final step convert the image to a non-standard format
// like Docker). But this only works if we _test_ it.
func (s *CopySuite) TestCopyOCIRoundTrip(c *check.C) {
const ourRegistry = "docker://" + v2DockerRegistryURL + "/"
oci1 := c.MkDir()
oci2 := c.MkDir()
// Docker -> OCI
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--debug", "copy", testFQIN, "oci:"+oci1+":latest")
// OCI -> Docker
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--debug", "copy", "oci:"+oci1+":latest", ourRegistry+"original/busybox:oci_copy")
// Docker -> OCI
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--debug", "copy", ourRegistry+"original/busybox:oci_copy", "oci:"+oci2+":latest")
// OCI -> Docker
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--debug", "copy", "oci:"+oci2+":latest", ourRegistry+"original/busybox:oci_copy2")
// TODO: Add some more tags to output to and check those work properly.
// First, make sure the OCI blobs are the same. This should _always_ be true.
out := combinedOutputOfCommand(c, "diff", "-urN", oci1+"/blobs", oci2+"/blobs")
c.Assert(out, check.Equals, "")
// For some silly reason we pass a logger to the OCI library here...
logger := log.New(os.Stderr, "", 0)
// Verify using the upstream OCI image validator, this should catch most
// non-compliance errors. DO NOT REMOVE THIS TEST UNLESS IT'S ABSOLUTELY
// NECESSARY.
err := image.ValidateLayout(oci1, nil, logger)
c.Assert(err, check.IsNil)
err = image.ValidateLayout(oci2, nil, logger)
c.Assert(err, check.IsNil)
// Now verify that everything is identical. Currently this is true, but
// because we recompute the manifests on-the-fly this doesn't necessarily
// always have to be true (but if this breaks in the future __PLEASE__ make
// sure that the breakage actually makes sense before removing this check).
out = combinedOutputOfCommand(c, "diff", "-urN", oci1, oci2)
c.Assert(out, check.Equals, "")
}
// --sign-by and --policy copy, primarily using atomic:
func (s *CopySuite) TestCopySignatures(c *check.C) {
mech, _, err := signature.NewEphemeralGPGSigningMechanism([]byte{})
c.Assert(err, check.IsNil)
defer mech.Close()
if err := mech.SupportsSigning(); err != nil { // FIXME? Test that verification and policy enforcement works, using signatures from fixtures
c.Skip(fmt.Sprintf("Signing not supported: %v", err))
}
dir := c.MkDir()
dirDest := "dir:" + dir
policy := fileFromFixture(c, "fixtures/policy.json", map[string]string{"@keydir@": s.gpgHome})
defer os.Remove(policy)
// type: reject
assertSkopeoFails(c, fmt.Sprintf(".*Source image rejected: Running image %s:latest is rejected by policy.*", testFQIN),
"--policy", policy, "copy", testFQIN+":latest", dirDest)
// type: insecureAcceptAnything
assertSkopeoSucceeds(c, "", "--policy", policy, "copy", "docker://quay.io/openshift/origin-hello-openshift", dirDest)
// type: signedBy
// Sign the images
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", "--sign-by", "personal@example.com", testFQIN+":1.26", "atomic:localhost:5006/myns/personal:personal")
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", "--sign-by", "official@example.com", testFQIN+":1.26.1", "atomic:localhost:5006/myns/official:official")
// Verify that we can pull them
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--policy", policy, "copy", "atomic:localhost:5006/myns/personal:personal", dirDest)
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--policy", policy, "copy", "atomic:localhost:5006/myns/official:official", dirDest)
// Verify that mis-signed images are rejected
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", "atomic:localhost:5006/myns/personal:personal", "atomic:localhost:5006/myns/official:attack")
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", "atomic:localhost:5006/myns/official:official", "atomic:localhost:5006/myns/personal:attack")
assertSkopeoFails(c, ".*Source image rejected: Invalid GPG signature.*",
"--tls-verify=false", "--policy", policy, "copy", "atomic:localhost:5006/myns/personal:attack", dirDest)
assertSkopeoFails(c, ".*Source image rejected: Invalid GPG signature.*",
"--tls-verify=false", "--policy", policy, "copy", "atomic:localhost:5006/myns/official:attack", dirDest)
// Verify that signed identity is verified.
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", "atomic:localhost:5006/myns/official:official", "atomic:localhost:5006/myns/naming:test1")
assertSkopeoFails(c, ".*Source image rejected: Signature for identity localhost:5006/myns/official:official is not accepted.*",
"--tls-verify=false", "--policy", policy, "copy", "atomic:localhost:5006/myns/naming:test1", dirDest)
// signedIdentity works
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", "atomic:localhost:5006/myns/official:official", "atomic:localhost:5006/myns/naming:naming")
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--policy", policy, "copy", "atomic:localhost:5006/myns/naming:naming", dirDest)
// Verify that cosigning requirements are enforced
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", "atomic:localhost:5006/myns/official:official", "atomic:localhost:5006/myns/cosigned:cosigned")
assertSkopeoFails(c, ".*Source image rejected: Invalid GPG signature.*",
"--tls-verify=false", "--policy", policy, "copy", "atomic:localhost:5006/myns/cosigned:cosigned", dirDest)
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", "--sign-by", "personal@example.com", "atomic:localhost:5006/myns/official:official", "atomic:localhost:5006/myns/cosigned:cosigned")
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--policy", policy, "copy", "atomic:localhost:5006/myns/cosigned:cosigned", dirDest)
}
// --policy copy for dir: sources
func (s *CopySuite) TestCopyDirSignatures(c *check.C) {
mech, _, err := signature.NewEphemeralGPGSigningMechanism([]byte{})
c.Assert(err, check.IsNil)
defer mech.Close()
if err := mech.SupportsSigning(); err != nil { // FIXME? Test that verification and policy enforcement works, using signatures from fixtures
c.Skip(fmt.Sprintf("Signing not supported: %v", err))
}
topDir := c.MkDir()
topDirDest := "dir:" + topDir
for _, suffix := range []string{"/dir1", "/dir2", "/restricted/personal", "/restricted/official", "/restricted/badidentity", "/dest"} {
err := os.MkdirAll(topDir+suffix, 0755)
c.Assert(err, check.IsNil)
}
// Note the "/@dirpath@": The value starts with a slash so that it is not rejected in other tests which do not replace it,
// but we must ensure that the result is a canonical path, not something starting with a "//".
policy := fileFromFixture(c, "fixtures/policy.json", map[string]string{"@keydir@": s.gpgHome, "/@dirpath@": topDir + "/restricted"})
defer os.Remove(policy)
// Get some images.
assertSkopeoSucceeds(c, "", "copy", testFQIN+":armfh", topDirDest+"/dir1")
assertSkopeoSucceeds(c, "", "copy", testFQIN+":s390x", topDirDest+"/dir2")
// Sign the images. By coping from a topDirDest/dirN, also test that non-/restricted paths
// use the dir:"" default of insecureAcceptAnything.
// (For signing, we must push to atomic: to get a Docker identity to use in the signature.)
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--policy", policy, "copy", "--sign-by", "personal@example.com", topDirDest+"/dir1", "atomic:localhost:5000/myns/personal:dirstaging")
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--policy", policy, "copy", "--sign-by", "official@example.com", topDirDest+"/dir2", "atomic:localhost:5000/myns/official:dirstaging")
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", "atomic:localhost:5000/myns/personal:dirstaging", topDirDest+"/restricted/personal")
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", "atomic:localhost:5000/myns/official:dirstaging", topDirDest+"/restricted/official")
// type: signedBy, with a signedIdentity override (necessary because dir: identities can't be signed)
// Verify that correct images are accepted
assertSkopeoSucceeds(c, "", "--policy", policy, "copy", topDirDest+"/restricted/official", topDirDest+"/dest")
// ... and that mis-signed images are rejected.
assertSkopeoFails(c, ".*Source image rejected: Invalid GPG signature.*",
"--policy", policy, "copy", topDirDest+"/restricted/personal", topDirDest+"/dest")
// Verify that the signed identity is verified.
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--policy", policy, "copy", "--sign-by", "official@example.com", topDirDest+"/dir1", "atomic:localhost:5000/myns/personal:dirstaging2")
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", "atomic:localhost:5000/myns/personal:dirstaging2", topDirDest+"/restricted/badidentity")
assertSkopeoFails(c, ".*Source image rejected: .*Signature for identity localhost:5000/myns/personal:dirstaging2 is not accepted.*",
"--policy", policy, "copy", topDirDest+"/restricted/badidentity", topDirDest+"/dest")
}
// Compression during copy
func (s *CopySuite) TestCopyCompression(c *check.C) {
const uncompresssedLayerFile = "160d823fdc48e62f97ba62df31e55424f8f5eb6b679c865eec6e59adfe304710"
topDir := c.MkDir()
for i, t := range []struct{ fixture, remote string }{
{"uncompressed-image-s1", "docker://" + v2DockerRegistryURL + "/compression/compression:s1"},
{"uncompressed-image-s2", "docker://" + v2DockerRegistryURL + "/compression/compression:s2"},
{"uncompressed-image-s1", "atomic:localhost:5000/myns/compression:s1"},
{"uncompressed-image-s2", "atomic:localhost:5000/myns/compression:s2"},
} {
dir := filepath.Join(topDir, fmt.Sprintf("case%d", i))
err := os.MkdirAll(dir, 0755)
c.Assert(err, check.IsNil)
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", "dir:fixtures/"+t.fixture, t.remote)
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", t.remote, "dir:"+dir)
// The original directory contained an uncompressed file, the copy after pushing and pulling doesn't (we use a different name for the compressed file).
_, err = os.Lstat(filepath.Join("fixtures", t.fixture, uncompresssedLayerFile))
c.Assert(err, check.IsNil)
_, err = os.Lstat(filepath.Join(dir, uncompresssedLayerFile))
c.Assert(err, check.NotNil)
c.Assert(os.IsNotExist(err), check.Equals, true)
// All pulled layers are smaller than the uncompressed size of uncompresssedLayerFile. (Note that this includes the manifest in s2, but that works out OK).
dirf, err := os.Open(dir)
c.Assert(err, check.IsNil)
fis, err := dirf.Readdir(-1)
c.Assert(err, check.IsNil)
for _, fi := range fis {
c.Assert(fi.Size() < 2048, check.Equals, true)
}
}
}
func findRegularFiles(c *check.C, root string) []string {
result := []string{}
err := filepath.WalkDir(root, func(path string, d fs.DirEntry, err error) error {
if err != nil {
return err
}
if d.Type().IsRegular() {
result = append(result, path)
}
return nil
})
c.Assert(err, check.IsNil)
return result
}
// --sign-by and policy use for docker: with sigstore
func (s *CopySuite) TestCopyDockerSigstore(c *check.C) {
mech, _, err := signature.NewEphemeralGPGSigningMechanism([]byte{})
c.Assert(err, check.IsNil)
defer mech.Close()
if err := mech.SupportsSigning(); err != nil { // FIXME? Test that verification and policy enforcement works, using signatures from fixtures
c.Skip(fmt.Sprintf("Signing not supported: %v", err))
}
const ourRegistry = "docker://" + v2DockerRegistryURL + "/"
tmpDir := c.MkDir()
copyDest := filepath.Join(tmpDir, "dest")
err = os.Mkdir(copyDest, 0755)
c.Assert(err, check.IsNil)
dirDest := "dir:" + copyDest
plainSigstore := filepath.Join(tmpDir, "sigstore")
splitSigstoreStaging := filepath.Join(tmpDir, "sigstore-staging")
splitSigstoreReadServerHandler := http.NotFoundHandler()
splitSigstoreReadServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
splitSigstoreReadServerHandler.ServeHTTP(w, r)
}))
defer splitSigstoreReadServer.Close()
policy := fileFromFixture(c, "fixtures/policy.json", map[string]string{"@keydir@": s.gpgHome})
defer os.Remove(policy)
registriesDir := filepath.Join(tmpDir, "registries.d")
err = os.Mkdir(registriesDir, 0755)
c.Assert(err, check.IsNil)
registriesFile := fileFromFixture(c, "fixtures/registries.yaml",
map[string]string{"@sigstore@": plainSigstore, "@split-staging@": splitSigstoreStaging, "@split-read@": splitSigstoreReadServer.URL})
err = os.Symlink(registriesFile, filepath.Join(registriesDir, "registries.yaml"))
c.Assert(err, check.IsNil)
// Get an image to work with. Also verifies that we can use Docker repositories with no sigstore configured.
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--registries.d", registriesDir, "copy", testFQIN, ourRegistry+"original/busybox")
// Pulling an unsigned image fails.
assertSkopeoFails(c, ".*Source image rejected: A signature was required, but no signature exists.*",
"--tls-verify=false", "--policy", policy, "--registries.d", registriesDir, "copy", ourRegistry+"original/busybox", dirDest)
// Signing with sigstore defined succeeds,
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--registries.d", registriesDir, "copy", "--sign-by", "personal@example.com", ourRegistry+"original/busybox", ourRegistry+"signed/busybox")
// a signature file has been created,
foundFiles := findRegularFiles(c, plainSigstore)
c.Assert(foundFiles, check.HasLen, 1)
// and pulling a signed image succeeds.
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--policy", policy, "--registries.d", registriesDir, "copy", ourRegistry+"signed/busybox", dirDest)
// Deleting the image succeeds,
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--registries.d", registriesDir, "delete", ourRegistry+"signed/busybox")
// and the signature file has been deleted (but we leave the directories around).
foundFiles = findRegularFiles(c, plainSigstore)
c.Assert(foundFiles, check.HasLen, 0)
// Signing with a read/write sigstore split succeeds,
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--registries.d", registriesDir, "copy", "--sign-by", "personal@example.com", ourRegistry+"original/busybox", ourRegistry+"public/busybox")
// and a signature file has been created.
foundFiles = findRegularFiles(c, splitSigstoreStaging)
c.Assert(foundFiles, check.HasLen, 1)
// Pulling the image fails because the read sigstore URL has not been populated:
assertSkopeoFails(c, ".*Source image rejected: A signature was required, but no signature exists.*",
"--tls-verify=false", "--policy", policy, "--registries.d", registriesDir, "copy", ourRegistry+"public/busybox", dirDest)
// Pulling the image succeeds after the read sigstore URL is available:
splitSigstoreReadServerHandler = http.FileServer(http.Dir(splitSigstoreStaging))
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--policy", policy, "--registries.d", registriesDir, "copy", ourRegistry+"public/busybox", dirDest)
}
// atomic: and docker: X-Registry-Supports-Signatures works and interoperates
func (s *CopySuite) TestCopyAtomicExtension(c *check.C) {
mech, _, err := signature.NewEphemeralGPGSigningMechanism([]byte{})
c.Assert(err, check.IsNil)
defer mech.Close()
if err := mech.SupportsSigning(); err != nil { // FIXME? Test that the reading/writing works using signatures from fixtures
c.Skip(fmt.Sprintf("Signing not supported: %v", err))
}
topDir := c.MkDir()
for _, subdir := range []string{"dirAA", "dirAD", "dirDA", "dirDD", "registries.d"} {
err := os.MkdirAll(filepath.Join(topDir, subdir), 0755)
c.Assert(err, check.IsNil)
}
registriesDir := filepath.Join(topDir, "registries.d")
dirDest := "dir:" + topDir
policy := fileFromFixture(c, "fixtures/policy.json", map[string]string{"@keydir@": s.gpgHome})
defer os.Remove(policy)
// Get an image to work with to an atomic: destination. Also verifies that we can use Docker repositories without X-Registry-Supports-Signatures
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--registries.d", registriesDir, "copy", testFQIN, "atomic:localhost:5000/myns/extension:unsigned")
// Pulling an unsigned image using atomic: fails.
assertSkopeoFails(c, ".*Source image rejected: A signature was required, but no signature exists.*",
"--tls-verify=false", "--policy", policy,
"copy", "atomic:localhost:5000/myns/extension:unsigned", dirDest+"/dirAA")
// The same when pulling using docker:
assertSkopeoFails(c, ".*Source image rejected: A signature was required, but no signature exists.*",
"--tls-verify=false", "--policy", policy, "--registries.d", registriesDir,
"copy", "docker://localhost:5000/myns/extension:unsigned", dirDest+"/dirAD")
// Sign the image using atomic:
assertSkopeoSucceeds(c, "", "--tls-verify=false",
"copy", "--sign-by", "personal@example.com", "atomic:localhost:5000/myns/extension:unsigned", "atomic:localhost:5000/myns/extension:atomic")
// Pulling the image using atomic: now succeeds.
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--policy", policy,
"copy", "atomic:localhost:5000/myns/extension:atomic", dirDest+"/dirAA")
// The same when pulling using docker:
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--policy", policy, "--registries.d", registriesDir,
"copy", "docker://localhost:5000/myns/extension:atomic", dirDest+"/dirAD")
// Both access methods result in the same data.
assertDirImagesAreEqual(c, filepath.Join(topDir, "dirAA"), filepath.Join(topDir, "dirAD"))
// Get another image (different so that they don't share signatures, and sign it using docker://)
assertSkopeoSucceeds(c, "", "--tls-verify=false", "--registries.d", registriesDir,
"copy", "--sign-by", "personal@example.com", testFQIN+":ppc64le", "docker://localhost:5000/myns/extension:extension")
c.Logf("%s", combinedOutputOfCommand(c, "oc", "get", "istag", "extension:extension", "-o", "json"))
// Pulling the image using atomic: succeeds.
assertSkopeoSucceeds(c, "", "--debug", "--tls-verify=false", "--policy", policy,
"copy", "atomic:localhost:5000/myns/extension:extension", dirDest+"/dirDA")
// The same when pulling using docker:
assertSkopeoSucceeds(c, "", "--debug", "--tls-verify=false", "--policy", policy, "--registries.d", registriesDir,
"copy", "docker://localhost:5000/myns/extension:extension", dirDest+"/dirDD")
// Both access methods result in the same data.
assertDirImagesAreEqual(c, filepath.Join(topDir, "dirDA"), filepath.Join(topDir, "dirDD"))
}
// Both mirroring support in registries.conf, and mirrored remapIdentity support in policy.json
func (s *CopySuite) TestCopyVerifyingMirroredSignatures(c *check.C) {
const regPrefix = "docker://localhost:5006/myns/mirroring-"
mech, _, err := signature.NewEphemeralGPGSigningMechanism([]byte{})
c.Assert(err, check.IsNil)
defer mech.Close()
if err := mech.SupportsSigning(); err != nil { // FIXME? Test that verification and policy enforcement works, using signatures from fixtures
c.Skip(fmt.Sprintf("Signing not supported: %v", err))
}
topDir := c.MkDir()
registriesDir := filepath.Join(topDir, "registries.d") // An empty directory to disable sigstore use
dirDest := "dir:" + filepath.Join(topDir, "unused-dest")
policy := fileFromFixture(c, "fixtures/policy.json", map[string]string{"@keydir@": s.gpgHome})
defer os.Remove(policy)
// We use X-R-S-S for this testing to avoid having to deal with the sigstores.
// A downside is that OpenShift records signatures per image, so the error messages below
// list all signatures for other tags used for the same image as well.
// So, make sure to never create a signature that could be considered valid in a different part of the test (i.e. don't reuse tags).
// Get an image to work with.
assertSkopeoSucceeds(c, "", "copy", "--dest-tls-verify=false", testFQIN, regPrefix+"primary:unsigned")
// Verify that unsigned images are rejected
assertSkopeoFails(c, ".*Source image rejected: A signature was required, but no signature exists.*",
"--policy", policy, "--registries.d", registriesDir, "--registries-conf", "fixtures/registries.conf", "copy", "--src-tls-verify=false", regPrefix+"primary:unsigned", dirDest)
// Sign the image for the primary location