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4ef35a385a
skopeo/integration/copy_test.go
James Hewitt 4ef35a385a
Add option to specify the identity for signing 
This enables pushing to registries where the push and pull uris may be
different, for example where pushed images are mirrored to a read only
replica for distribution.

Closes #1588

Signed-off-by: James Hewitt <james.hewitt@uk.ibm.com>
2022-03-30 22:02:43 +01:00

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package main
import (
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"encoding/json"
"fmt"
"io/ioutil"
"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 := ioutil.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 := ioutil.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 := ioutil.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 = ioutil.WriteFile(keysDir+"/private.key", privateKeyBytes, 0644)
c.Assert(err, check.IsNil)
err = ioutil.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 = ioutil.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 := ioutil.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 := ioutil.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 := ioutil.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.Walk(root, filepath.WalkFunc(func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if info.Mode().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
assertSkopeoSucceeds(c, "", "--registries.d", registriesDir, "copy", "--src-tls-verify=false", "--dest-tls-verify=false", "--sign-by", "personal@example.com", regPrefix+"primary:unsigned", regPrefix+"primary:direct")
// Verify that a correctly signed image in the primary location is usable.
assertSkopeoSucceeds(c, "", "--policy", policy, "--registries.d", registriesDir, "--registries-conf", "fixtures/registries.conf", "copy", "--src-tls-verify=false", regPrefix+"primary:direct", dirDest)
// Sign the image for the mirror
assertSkopeoSucceeds(c, "", "--registries.d", registriesDir, "copy", "--src-tls-verify=false", "--dest-tls-verify=false", "--sign-by", "personal@example.com", regPrefix+"primary:unsigned", regPrefix+"mirror:mirror-signed")
// Verify that a correctly signed image for the mirror is accessible using the mirror's reference
assertSkopeoSucceeds(c, "", "--policy", policy, "--registries.d", registriesDir, "--registries-conf", "fixtures/registries.conf", "copy", "--src-tls-verify=false", regPrefix+"mirror:mirror-signed", dirDest)
// … but verify that while it is accessible using the primary location redirecting to the mirror, …
assertSkopeoSucceeds(c, "" /* no --policy */, "--registries-conf", "fixtures/registries.conf", "copy", "--src-tls-verify=false", regPrefix+"primary:mirror-signed", dirDest)
// … verify it is NOT accessible when requiring a signature.
assertSkopeoFails(c, ".*Source image rejected: None of the signatures were accepted, reasons: Signature for identity localhost:5006/myns/mirroring-primary:direct is not accepted; Signature for identity localhost:5006/myns/mirroring-mirror:mirror-signed is not accepted.*",
"--policy", policy, "--registries.d", registriesDir, "--registries-conf", "fixtures/registries.conf", "copy", "--src-tls-verify=false", regPrefix+"primary:mirror-signed", dirDest)
// Fail if we specify an unqualified identity
assertSkopeoFails(c, ".*Could not parse --sign-identity: repository name must be canonical.*",
"--registries.d", registriesDir, "copy", "--src-tls-verify=false", "--dest-tls-verify=false", "--sign-by=personal@example.com", "--sign-identity=this-is-not-fully-specified", regPrefix+"primary:unsigned", regPrefix+"mirror:primary-signed")
// Create a signature for mirroring-primary:primary-signed without pushing there.
assertSkopeoSucceeds(c, "", "--registries.d", registriesDir, "copy", "--src-tls-verify=false", "--dest-tls-verify=false", "--sign-by=personal@example.com", "--sign-identity=localhost:5006/myns/mirroring-primary:primary-signed", regPrefix+"primary:unsigned", regPrefix+"mirror:primary-signed")
// Verify that a correctly signed image for the primary is accessible using the primary's reference
assertSkopeoSucceeds(c, "", "--policy", policy, "--registries.d", registriesDir, "--registries-conf", "fixtures/registries.conf", "copy", "--src-tls-verify=false", regPrefix+"primary:primary-signed", dirDest)
// … but verify that while it is accessible using the mirror location
assertSkopeoSucceeds(c, "" /* no --policy */, "--registries-conf", "fixtures/registries.conf", "copy", "--src-tls-verify=false", regPrefix+"mirror:primary-signed", dirDest)
// … verify it is NOT accessible when requiring a signature.
assertSkopeoFails(c, ".*Source image rejected: None of the signatures were accepted, reasons: Signature for identity localhost:5006/myns/mirroring-primary:direct is not accepted; Signature for identity localhost:5006/myns/mirroring-mirror:mirror-signed is not accepted; Signature for identity localhost:5006/myns/mirroring-primary:primary-signed is not accepted.*",
"--policy", policy, "--registries.d", registriesDir, "--registries-conf", "fixtures/registries.conf", "copy", "--src-tls-verify=false", regPrefix+"mirror:primary-signed", dirDest)
assertSkopeoSucceeds(c, "", "--registries.d", registriesDir, "--registries-conf", "fixtures/registries.conf", "copy", "--src-tls-verify=false", "--dest-tls-verify=false", regPrefix+"primary:unsigned", regPrefix+"remap:remapped")
// Verify that while a remapIdentity image is accessible using the remapped (mirror) location
assertSkopeoSucceeds(c, "" /* no --policy */, "--registries.d", registriesDir, "--registries-conf", "fixtures/registries.conf", "copy", "--src-tls-verify=false", regPrefix+"remap:remapped", dirDest)
// … it is NOT accessible when requiring a signature …
assertSkopeoFails(c, ".*Source image rejected: None of the signatures were accepted, reasons: Signature for identity localhost:5006/myns/mirroring-primary:direct is not accepted; Signature for identity localhost:5006/myns/mirroring-mirror:mirror-signed is not accepted; Signature for identity localhost:5006/myns/mirroring-primary:primary-signed is not accepted.*", "--policy", policy, "--registries.d", registriesDir, "--registries-conf", "fixtures/registries.conf", "copy", "--src-tls-verify=false", regPrefix+"remap:remapped", dirDest)
// … until signed.
assertSkopeoSucceeds(c, "", "--registries.d", registriesDir, "copy", "--src-tls-verify=false", "--dest-tls-verify=false", "--sign-by=personal@example.com", "--sign-identity=localhost:5006/myns/mirroring-primary:remapped", regPrefix+"remap:remapped", regPrefix+"remap:remapped")
assertSkopeoSucceeds(c, "", "--policy", policy, "--registries.d", registriesDir, "--registries-conf", "fixtures/registries.conf", "copy", "--src-tls-verify=false", regPrefix+"remap:remapped", dirDest)
// To be extra clear about the semantics, verify that the signedPrefix (primary) location never exists
// and only the remapped prefix (mirror) is accessed.
assertSkopeoFails(c, ".*initializing source docker://localhost:5006/myns/mirroring-primary:remapped:.*manifest unknown: manifest unknown.*", "--policy", policy, "--registries.d", registriesDir, "--registries-conf", "fixtures/registries.conf", "copy", "--src-tls-verify=false", regPrefix+"primary:remapped", dirDest)
}
func (s *SkopeoSuite) TestCopySrcWithAuth(c *check.C) {
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", "--dest-creds=testuser:testpassword", testFQIN, fmt.Sprintf("docker://%s/busybox:latest", s.regV2WithAuth.url))
dir1 := c.MkDir()
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", "--src-creds=testuser:testpassword", fmt.Sprintf("docker://%s/busybox:latest", s.regV2WithAuth.url), "dir:"+dir1)
}
func (s *SkopeoSuite) TestCopyDestWithAuth(c *check.C) {
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", "--dest-creds=testuser:testpassword", testFQIN, fmt.Sprintf("docker://%s/busybox:latest", s.regV2WithAuth.url))
}
func (s *SkopeoSuite) TestCopySrcAndDestWithAuth(c *check.C) {
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", "--dest-creds=testuser:testpassword", testFQIN, fmt.Sprintf("docker://%s/busybox:latest", s.regV2WithAuth.url))
assertSkopeoSucceeds(c, "", "--tls-verify=false", "copy", "--src-creds=testuser:testpassword", "--dest-creds=testuser:testpassword", fmt.Sprintf("docker://%s/busybox:latest", s.regV2WithAuth.url), fmt.Sprintf("docker://%s/test:auth", s.regV2WithAuth.url))
}
func (s *CopySuite) TestCopyNoPanicOnHTTPResponseWithoutTLSVerifyFalse(c *check.C) {
topDir := c.MkDir()
const ourRegistry = "docker://" + v2DockerRegistryURL + "/"
assertSkopeoFails(c, ".*server gave HTTP response to HTTPS client.*",
"copy", ourRegistry+"foobar", "dir:"+topDir)
}
func (s *CopySuite) TestCopySchemaConversion(c *check.C) {
// Test conversion / schema autodetection both for the OpenShift embedded registry…
s.testCopySchemaConversionRegistries(c, "docker://localhost:5005/myns/schema1", "docker://localhost:5006/myns/schema2")
// … and for various docker/distribution registry versions.
s.testCopySchemaConversionRegistries(c, "docker://"+v2s1DockerRegistryURL+"/schema1", "docker://"+v2DockerRegistryURL+"/schema2")
}
func (s *CopySuite) TestCopyManifestConversion(c *check.C) {
topDir := c.MkDir()
srcDir := filepath.Join(topDir, "source")
destDir1 := filepath.Join(topDir, "dest1")
destDir2 := filepath.Join(topDir, "dest2")
// oci to v2s1 and vice-versa not supported yet
// get v2s2 manifest type
assertSkopeoSucceeds(c, "", "copy", testFQIN, "dir:"+srcDir)
verifyManifestMIMEType(c, srcDir, manifest.DockerV2Schema2MediaType)
// convert from v2s2 to oci
assertSkopeoSucceeds(c, "", "copy", "--format=oci", "dir:"+srcDir, "dir:"+destDir1)
verifyManifestMIMEType(c, destDir1, imgspecv1.MediaTypeImageManifest)
// convert from oci to v2s2
assertSkopeoSucceeds(c, "", "copy", "--format=v2s2", "dir:"+destDir1, "dir:"+destDir2)
verifyManifestMIMEType(c, destDir2, manifest.DockerV2Schema2MediaType)
// convert from v2s2 to v2s1
assertSkopeoSucceeds(c, "", "copy", "--format=v2s1", "dir:"+srcDir, "dir:"+destDir1)
verifyManifestMIMEType(c, destDir1, manifest.DockerV2Schema1SignedMediaType)
// convert from v2s1 to v2s2
assertSkopeoSucceeds(c, "", "copy", "--format=v2s2", "dir:"+destDir1, "dir:"+destDir2)
verifyManifestMIMEType(c, destDir2, manifest.DockerV2Schema2MediaType)
}
func (s *CopySuite) TestCopyPreserveDigests(c *check.C) {
topDir := c.MkDir()
assertSkopeoSucceeds(c, "", "copy", knownListImage, "--multi-arch=all", "--preserve-digests", "dir:"+topDir)
assertSkopeoFails(c, ".*Instructed to preserve digests.*", "copy", knownListImage, "--multi-arch=all", "--preserve-digests", "--format=oci", "dir:"+topDir)
}
func (s *CopySuite) testCopySchemaConversionRegistries(c *check.C, schema1Registry, schema2Registry string) {
topDir := c.MkDir()
for _, subdir := range []string{"input1", "input2", "dest2"} {
err := os.MkdirAll(filepath.Join(topDir, subdir), 0755)
c.Assert(err, check.IsNil)
}
input1Dir := filepath.Join(topDir, "input1")
input2Dir := filepath.Join(topDir, "input2")
destDir := filepath.Join(topDir, "dest2")
// Ensure we are working with a schema2 image.
// dir: accepts any manifest format, i.e. this makes …/input2 a schema2 source which cannot be asked to produce schema1 like ordinary docker: registries can.
assertSkopeoSucceeds(c, "", "copy", testFQIN, "dir:"+input2Dir)
verifyManifestMIMEType(c, input2Dir, manifest.DockerV2Schema2MediaType)
// 2→2 (the "f2t2" in tag means "from 2 to 2")
assertSkopeoSucceeds(c, "", "copy", "--dest-tls-verify=false", "dir:"+input2Dir, schema2Registry+":f2t2")
assertSkopeoSucceeds(c, "", "copy", "--src-tls-verify=false", schema2Registry+":f2t2", "dir:"+destDir)
verifyManifestMIMEType(c, destDir, manifest.DockerV2Schema2MediaType)
// 2→1; we will use the result as a schema1 image for further tests.
assertSkopeoSucceeds(c, "", "copy", "--dest-tls-verify=false", "dir:"+input2Dir, schema1Registry+":f2t1")
assertSkopeoSucceeds(c, "", "copy", "--src-tls-verify=false", schema1Registry+":f2t1", "dir:"+input1Dir)
verifyManifestMIMEType(c, input1Dir, manifest.DockerV2Schema1SignedMediaType)
// 1→1
assertSkopeoSucceeds(c, "", "copy", "--dest-tls-verify=false", "dir:"+input1Dir, schema1Registry+":f1t1")
assertSkopeoSucceeds(c, "", "copy", "--src-tls-verify=false", schema1Registry+":f1t1", "dir:"+destDir)
verifyManifestMIMEType(c, destDir, manifest.DockerV2Schema1SignedMediaType)
// 1→2: image stays unmodified schema1
assertSkopeoSucceeds(c, "", "copy", "--dest-tls-verify=false", "dir:"+input1Dir, schema2Registry+":f1t2")
assertSkopeoSucceeds(c, "", "copy", "--src-tls-verify=false", schema2Registry+":f1t2", "dir:"+destDir)
verifyManifestMIMEType(c, destDir, manifest.DockerV2Schema1SignedMediaType)
}
const regConfFixture = "./fixtures/registries.conf"
func (s *SkopeoSuite) TestSuccessCopySrcWithMirror(c *check.C) {
dir := c.MkDir()
assertSkopeoSucceeds(c, "", "--registries-conf="+regConfFixture, "copy",
"docker://mirror.invalid/busybox", "dir:"+dir)
}
func (s *SkopeoSuite) TestFailureCopySrcWithMirrorsUnavailable(c *check.C) {
dir := c.MkDir()
// .invalid domains are, per RFC 6761, supposed to result in NXDOMAIN.
// With systemd-resolved (used only via NSS?), we instead seem to get “Temporary failure in name resolution”
assertSkopeoFails(c, ".*(no such host|Temporary failure in name resolution).*",
"--registries-conf="+regConfFixture, "copy", "docker://invalid.invalid/busybox", "dir:"+dir)
}
func (s *SkopeoSuite) TestSuccessCopySrcWithMirrorAndPrefix(c *check.C) {
dir := c.MkDir()
assertSkopeoSucceeds(c, "", "--registries-conf="+regConfFixture, "copy",
"docker://gcr.invalid/foo/bar/busybox", "dir:"+dir)
}
func (s *SkopeoSuite) TestFailureCopySrcWithMirrorAndPrefixUnavailable(c *check.C) {
dir := c.MkDir()
// .invalid domains are, per RFC 6761, supposed to result in NXDOMAIN.
// With systemd-resolved (used only via NSS?), we instead seem to get “Temporary failure in name resolution”
assertSkopeoFails(c, ".*(no such host|Temporary failure in name resolution).*",
"--registries-conf="+regConfFixture, "copy", "docker://gcr.invalid/wrong/prefix/busybox", "dir:"+dir)
}
func (s *CopySuite) TestCopyFailsWhenReferenceIsInvalid(c *check.C) {
assertSkopeoFails(c, `.*Invalid image name.*`, "copy", "unknown:transport", "unknown:test")
}
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