func TestInvalidTags(t *testing.T) {
tmpDir, err := ioutil.TempDir("", "tag-store-test")
defer os.RemoveAll(tmpDir)
store, err := NewTagStore(filepath.Join(tmpDir, "repositories.json"))
if err != nil {
t.Fatalf("error creating tag store: %v", err)
}
id := image.ID("sha256:470022b8af682154f57a2163d030eb369549549cba00edc69e1b99b46bb924d6")
// sha256 as repo name
ref, err := reference.ParseNamed("sha256:abc")
if err != nil {
t.Fatal(err)
}
err = store.AddTag(ref, id, true)
if err == nil {
t.Fatalf("expected setting tag %q to fail", ref)
}
// setting digest as a tag
ref, err = reference.ParseNamed("registry@sha256:367eb40fd0330a7e464777121e39d2f5b3e8e23a1e159342e53ab05c9e4d94e6")
if err != nil {
t.Fatal(err)
}
err = store.AddTag(ref, id, true)
if err == nil {
t.Fatalf("expected setting digest %q to fail", ref)
}
}
// Check if the inspected image matches what we are looking for
func matchImageTagOrSHA(inspected dockertypes.ImageInspect, image string) bool {
// The image string follows the grammar specified here
// https://github.com/docker/distribution/blob/master/reference/reference.go#L4
named, err := dockerref.ParseNamed(image)
if err != nil {
glog.V(4).Infof("couldn't parse image reference %q: %v", image, err)
return false
}
_, isTagged := named.(dockerref.Tagged)
digest, isDigested := named.(dockerref.Digested)
if !isTagged && !isDigested {
// No Tag or SHA specified, so just return what we have
return true
}
if isTagged {
// Check the RepoTags for a match.
for _, tag := range inspected.RepoTags {
// An image name (without the tag/digest) can be [hostname '/'] component ['/' component]*
// Because either the RepoTag or the name *may* contain the
// hostname or not, we only check for the suffix match.
if strings.HasSuffix(image, tag) || strings.HasSuffix(tag, image) {
return true
}
}
}
if isDigested {
for _, repoDigest := range inspected.RepoDigests {
named, err := dockerref.ParseNamed(repoDigest)
if err != nil {
glog.V(4).Infof("couldn't parse image RepoDigest reference %q: %v", repoDigest, err)
continue
}
if d, isDigested := named.(dockerref.Digested); isDigested {
if digest.Digest().Algorithm().String() == d.Digest().Algorithm().String() &&
digest.Digest().Hex() == d.Digest().Hex() {
return true
}
}
}
// process the ID as a digest
id, err := dockerdigest.ParseDigest(inspected.ID)
if err != nil {
glog.V(4).Infof("couldn't parse image ID reference %q: %v", id, err)
return false
}
if digest.Digest().Algorithm().String() == id.Algorithm().String() && digest.Digest().Hex() == id.Hex() {
return true
}
}
glog.V(4).Infof("Inspected image (%q) does not match %s", inspected.ID, image)
return false
}
// parseImageName parses a docker image string into two parts: repo and tag.
// If tag is empty, return the defaultImageTag.
func ParseImageName(image string) (string, string, error) {
named, err := reference.ParseNamed(image)
if err != nil {
return "", "", fmt.Errorf("couldn't parse image name: %v", err)
}
repoToPull := named.Name()
var tag string
tagged, ok := named.(reference.Tagged)
if ok {
tag = tagged.Tag()
}
digested, ok := named.(reference.Digested)
if ok {
tag = digested.Digest().String()
}
// If no tag was specified, use the default "latest".
if len(tag) == 0 {
tag = defaultImageTag
}
return repoToPull, tag, nil
}
// TestWriteSeek tests that the current file size can be
// obtained using Seek
func TestWriteSeek(t *testing.T) {
ctx := context.Background()
imageName, _ := reference.ParseNamed("foo/bar")
driver := testdriver.New()
registry, err := NewRegistry(ctx, driver, BlobDescriptorCacheProvider(memory.NewInMemoryBlobDescriptorCacheProvider()), EnableDelete, EnableRedirect)
if err != nil {
t.Fatalf("error creating registry: %v", err)
}
repository, err := registry.Repository(ctx, imageName)
if err != nil {
t.Fatalf("unexpected error getting repo: %v", err)
}
bs := repository.Blobs(ctx)
blobUpload, err := bs.Create(ctx)
if err != nil {
t.Fatalf("unexpected error starting layer upload: %s", err)
}
contents := []byte{1, 2, 3}
blobUpload.Write(contents)
blobUpload.Close()
offset := blobUpload.Size()
if offset != int64(len(contents)) {
t.Fatalf("unexpected value for blobUpload offset: %v != %v", offset, len(contents))
}
}
// ParseNamedDockerImageReference parses a Docker pull spec string into a
// NamedDockerImageReference.
func ParseNamedDockerImageReference(spec string) (NamedDockerImageReference, error) {
var ref NamedDockerImageReference
namedRef, err := reference.ParseNamed(spec)
if err != nil {
return ref, err
}
name := namedRef.Name()
i := strings.IndexRune(name, '/')
if i == -1 || (!strings.ContainsAny(name[:i], ":.") && name[:i] != "localhost") {
ref.Name = name
} else {
ref.Registry, ref.Name = name[:i], name[i+1:]
}
if named, ok := namedRef.(reference.NamedTagged); ok {
ref.Tag = named.Tag()
}
if named, ok := namedRef.(reference.Canonical); ok {
ref.ID = named.Digest().String()
}
// It's not enough just to use the reference.ParseNamed(). We have to fill
// ref.Namespace from ref.Name
if i := strings.IndexRune(ref.Name, '/'); i != -1 {
ref.Namespace, ref.Name = ref.Name[:i], ref.Name[i+1:]
}
return ref, nil
}
// sanitizeRepoAndTags parses the raw "t" parameter received from the client
// to a slice of repoAndTag.
// It also validates each repoName and tag.
func sanitizeRepoAndTags(names []string) ([]reference.Named, error) {
var (
repoAndTags []reference.Named
// This map is used for deduplicating the "-t" paramter.
uniqNames = make(map[string]struct{})
)
for _, repo := range names {
if repo == "" {
continue
}
ref, err := reference.ParseNamed(repo)
if err != nil {
return nil, err
}
if _, isDigested := ref.(reference.Digested); isDigested {
return nil, errors.New("build tag cannot be a digest")
}
if _, isTagged := ref.(reference.Tagged); !isTagged {
ref, err = reference.WithTag(ref, tagpkg.DefaultTag)
}
nameWithTag := ref.String()
if _, exists := uniqNames[nameWithTag]; !exists {
uniqNames[nameWithTag] = struct{}{}
repoAndTags = append(repoAndTags, ref)
}
}
return repoAndTags, nil
}
func stripTag(image string) string {
ref, err := reference.ParseNamed(image)
if err != nil {
return image
}
return ref.Name()
}
// ParseDockerURL takes a Docker URL and returns a ParsedDockerURL with its
// index URL, image name, and tag.
func ParseDockerURL(arg string) (*types.ParsedDockerURL, error) {
r, err := reference.ParseNamed(arg)
if err != nil {
return nil, err
}
var tag, digest string
switch x := r.(type) {
case reference.Canonical:
digest = x.Digest().String()
case reference.NamedTagged:
tag = x.Tag()
default:
tag = defaultTag
}
indexURL, remoteName := SplitReposName(r.Name())
p := &types.ParsedDockerURL{
IndexURL: indexURL,
ImageName: remoteName,
Tag: tag,
Digest: digest,
}
return p, nil
}
func TestPushImageJSONIndex(t *testing.T) {
r := spawnTestRegistrySession(t)
imgData := []*ImgData{
{
ID: "77dbf71da1d00e3fbddc480176eac8994025630c6590d11cfc8fe1209c2a1d20",
Checksum: "sha256:1ac330d56e05eef6d438586545ceff7550d3bdcb6b19961f12c5ba714ee1bb37",
},
{
ID: "42d718c941f5c532ac049bf0b0ab53f0062f09a03afd4aa4a02c098e46032b9d",
Checksum: "sha256:bea7bf2e4bacd479344b737328db47b18880d09096e6674165533aa994f5e9f2",
},
}
repoRef, err := reference.ParseNamed(REPO)
if err != nil {
t.Fatal(err)
}
repoData, err := r.PushImageJSONIndex(repoRef, imgData, false, nil)
if err != nil {
t.Fatal(err)
}
if repoData == nil {
t.Fatal("Expected RepositoryData object")
}
repoData, err = r.PushImageJSONIndex(repoRef, imgData, true, []string{r.indexEndpoint.String()})
if err != nil {
t.Fatal(err)
}
if repoData == nil {
t.Fatal("Expected RepositoryData object")
}
}
func validateContainerSpec(container *api.ContainerSpec) error {
if container == nil {
return grpc.Errorf(codes.InvalidArgument, "ContainerSpec: missing in service spec")
}
if err := validateHostname(container.Hostname); err != nil {
return err
}
if container.Image == "" {
return grpc.Errorf(codes.InvalidArgument, "ContainerSpec: image reference must be provided")
}
if _, err := reference.ParseNamed(container.Image); err != nil {
return grpc.Errorf(codes.InvalidArgument, "ContainerSpec: %q is not a valid repository/tag", container.Image)
}
mountMap := make(map[string]bool)
for _, mount := range container.Mounts {
if _, exists := mountMap[mount.Target]; exists {
return grpc.Errorf(codes.InvalidArgument, "ContainerSpec: duplicate mount point: %s", mount.Target)
}
mountMap[mount.Target] = true
}
return nil
}
func TestLoad(t *testing.T) {
jsonFile, err := ioutil.TempFile("", "tag-store-test")
if err != nil {
t.Fatalf("error creating temp file: %v", err)
}
defer os.RemoveAll(jsonFile.Name())
// Write canned json to the temp file
_, err = jsonFile.Write(marshalledSaveLoadTestCases)
if err != nil {
t.Fatalf("error writing to temp file: %v", err)
}
jsonFile.Close()
store, err := NewTagStore(jsonFile.Name())
if err != nil {
t.Fatalf("error creating tag store: %v", err)
}
for refStr, expectedID := range saveLoadTestCases {
ref, err := reference.ParseNamed(refStr)
if err != nil {
t.Fatalf("failed to parse reference: %v", err)
}
id, err := store.Get(ref)
if err != nil {
t.Fatalf("could not find reference %s: %v", refStr, err)
}
if id != expectedID {
t.Fatalf("expected %s - got %s", expectedID, id)
}
}
}
// CmdPush pushes an image or repository to the registry.
//
// Usage: docker push NAME[:TAG]
func (cli *DockerCli) CmdPush(args ...string) error {
cmd := Cli.Subcmd("push", []string{"NAME[:TAG]"}, Cli.DockerCommands["push"].Description, true)
addTrustedFlags(cmd, false)
cmd.Require(flag.Exact, 1)
cmd.ParseFlags(args, true)
ref, err := reference.ParseNamed(cmd.Arg(0))
if err != nil {
return err
}
var tag string
switch x := ref.(type) {
case reference.Digested:
return errors.New("cannot push a digest reference")
case reference.Tagged:
tag = x.Tag()
}
// Resolve the Repository name from fqn to RepositoryInfo
repoInfo, err := registry.ParseRepositoryInfo(ref)
if err != nil {
return err
}
// Resolve the Auth config relevant for this server
authConfig := registry.ResolveAuthConfig(cli.configFile.AuthConfigs, repoInfo.Index)
requestPrivilege := cli.registryAuthenticationPrivilegedFunc(repoInfo.Index, "push")
if isTrusted() {
return cli.trustedPush(repoInfo, tag, authConfig, requestPrivilege)
}
return cli.imagePushPrivileged(authConfig, ref.Name(), tag, cli.out, requestPrivilege)
}
func TestListener(t *testing.T) {
ctx := context.Background()
registry, err := storage.NewRegistry(ctx, inmemory.New(), storage.BlobDescriptorCacheProvider(memory.NewInMemoryBlobDescriptorCacheProvider()), storage.EnableDelete, storage.EnableRedirect)
if err != nil {
t.Fatalf("error creating registry: %v", err)
}
tl := &testListener{
ops: make(map[string]int),
}
repoRef, _ := reference.ParseNamed("foo/bar")
repository, err := registry.Repository(ctx, repoRef)
if err != nil {
t.Fatalf("unexpected error getting repo: %v", err)
}
repository = Listen(repository, tl)
// Now take the registry through a number of operations
checkExerciseRepository(t, repository)
expectedOps := map[string]int{
"manifest:push": 1,
"manifest:pull": 1,
// "manifest:delete": 0, // deletes not supported for now
"layer:push": 2,
"layer:pull": 2,
// "layer:delete": 0, // deletes not supported for now
}
if !reflect.DeepEqual(tl.ops, expectedOps) {
t.Fatalf("counts do not match:\n%v\n !=\n%v", tl.ops, expectedOps)
}
}
func TestSave(t *testing.T) {
jsonFile, err := ioutil.TempFile("", "tag-store-test")
if err != nil {
t.Fatalf("error creating temp file: %v", err)
}
_, err = jsonFile.Write([]byte(`{}`))
jsonFile.Close()
defer os.RemoveAll(jsonFile.Name())
store, err := NewTagStore(jsonFile.Name())
if err != nil {
t.Fatalf("error creating tag store: %v", err)
}
for refStr, id := range saveLoadTestCases {
ref, err := reference.ParseNamed(refStr)
if err != nil {
t.Fatalf("failed to parse reference: %v", err)
}
err = store.Add(ref, id, false)
if err != nil {
t.Fatalf("could not add reference %s: %v", refStr, err)
}
}
jsonBytes, err := ioutil.ReadFile(jsonFile.Name())
if err != nil {
t.Fatalf("could not read json file: %v", err)
}
if !bytes.Equal(jsonBytes, marshalledSaveLoadTestCases) {
t.Fatalf("save output did not match expectations\nexpected:\n%s\ngot:\n%s", marshalledSaveLoadTestCases, jsonBytes)
}
}
// GetImageID returns an image ID corresponding to the image referred to by
// refOrID.
func (daemon *Daemon) GetImageID(refOrID string) (image.ID, error) {
// Treat as an ID
if id, err := digest.ParseDigest(refOrID); err == nil {
return image.ID(id), nil
}
// Treat it as a possible tag or digest reference
if ref, err := reference.ParseNamed(refOrID); err == nil {
ref = registry.NormalizeLocalReference(ref)
if id, err := daemon.tagStore.Get(ref); err == nil {
return id, nil
}
if tagged, ok := ref.(reference.Tagged); ok {
if id, err := daemon.imageStore.Search(tagged.Tag()); err == nil {
for _, namedRef := range daemon.tagStore.References(id) {
if namedRef.Name() == ref.Name() {
return id, nil
}
}
}
}
}
// Search based on ID
if id, err := daemon.imageStore.Search(refOrID); err == nil {
return id, nil
}
return "", ErrImageDoesNotExist{refOrID}
}
func newManifestStoreTestEnv(t *testing.T, name, tag string) *manifestStoreTestEnv {
nameRef, err := reference.ParseNamed(name)
if err != nil {
t.Fatalf("unable to parse reference: %s", err)
}
ctx := context.Background()
truthRegistry, err := storage.NewRegistry(ctx, inmemory.New(), storage.BlobDescriptorCacheProvider(memory.NewInMemoryBlobDescriptorCacheProvider()))
if err != nil {
t.Fatalf("error creating registry: %v", err)
}
truthRepo, err := truthRegistry.Repository(ctx, nameRef)
if err != nil {
t.Fatalf("unexpected error getting repo: %v", err)
}
tr, err := truthRepo.Manifests(ctx)
if err != nil {
t.Fatal(err.Error())
}
truthManifests := statsManifest{
manifests: tr,
stats: make(map[string]int),
}
manifestDigest, err := populateRepo(t, ctx, truthRepo, name, tag)
if err != nil {
t.Fatalf(err.Error())
}
localRegistry, err := storage.NewRegistry(ctx, inmemory.New(), storage.BlobDescriptorCacheProvider(memory.NewInMemoryBlobDescriptorCacheProvider()), storage.EnableRedirect, storage.DisableDigestResumption)
if err != nil {
t.Fatalf("error creating registry: %v", err)
}
localRepo, err := localRegistry.Repository(ctx, nameRef)
if err != nil {
t.Fatalf("unexpected error getting repo: %v", err)
}
lr, err := localRepo.Manifests(ctx)
if err != nil {
t.Fatal(err.Error())
}
localManifests := statsManifest{
manifests: lr,
stats: make(map[string]int),
}
s := scheduler.New(ctx, inmemory.New(), "/scheduler-state.json")
return &manifestStoreTestEnv{
manifestDigest: manifestDigest,
manifests: proxyManifestStore{
ctx: ctx,
localManifests: localManifests,
remoteManifests: truthManifests,
scheduler: s,
repositoryName: nameRef,
authChallenger: &mockChallenger{},
},
}
}
func TestManifestFetchWithEtag(t *testing.T) {
repo, _ := reference.ParseNamed("test.example.com/repo/by/tag")
_, d1, p1 := newRandomSchemaV1Manifest(repo, "latest", 6)
var m testutil.RequestResponseMap
addTestManifestWithEtag(repo, "latest", p1, &m, d1.String())
e, c := testServer(m)
defer c()
ctx := context.Background()
r, err := NewRepository(ctx, repo, e, nil)
if err != nil {
t.Fatal(err)
}
ms, err := r.Manifests(ctx)
if err != nil {
t.Fatal(err)
}
clientManifestService, ok := ms.(*manifests)
if !ok {
panic("wrong type for client manifest service")
}
_, err = clientManifestService.Get(ctx, d1, distribution.WithTag("latest"), AddEtagToTag("latest", d1.String()))
if err != distribution.ErrManifestNotModified {
t.Fatal(err)
}
}
func TestBlobDelete(t *testing.T) {
dgst, _ := newRandomBlob(1024)
var m testutil.RequestResponseMap
repo, _ := reference.ParseNamed("test.example.com/repo1")
m = append(m, testutil.RequestResponseMapping{
Request: testutil.Request{
Method: "DELETE",
Route: "/v2/" + repo.Name() + "/blobs/" + dgst.String(),
},
Response: testutil.Response{
StatusCode: http.StatusAccepted,
Headers: http.Header(map[string][]string{
"Content-Length": {"0"},
}),
},
})
e, c := testServer(m)
defer c()
ctx := context.Background()
r, err := NewRepository(ctx, repo, e, nil)
if err != nil {
t.Fatal(err)
}
l := r.Blobs(ctx)
err = l.Delete(ctx, dgst)
if err != nil {
t.Errorf("Error deleting blob: %s", err.Error())
}
}
func TestBlobFetch(t *testing.T) {
d1, b1 := newRandomBlob(1024)
var m testutil.RequestResponseMap
addTestFetch("test.example.com/repo1", d1, b1, &m)
e, c := testServer(m)
defer c()
ctx := context.Background()
repo, _ := reference.ParseNamed("test.example.com/repo1")
r, err := NewRepository(ctx, repo, e, nil)
if err != nil {
t.Fatal(err)
}
l := r.Blobs(ctx)
b, err := l.Get(ctx, d1)
if err != nil {
t.Fatal(err)
}
if bytes.Compare(b, b1) != 0 {
t.Fatalf("Wrong bytes values fetched: [%d]byte != [%d]byte", len(b), len(b1))
}
// TODO(dmcgowan): Test for unknown blob case
}
func TestBlobExists(t *testing.T) {
d1, b1 := newRandomBlob(1024)
var m testutil.RequestResponseMap
addTestFetch("test.example.com/repo1", d1, b1, &m)
e, c := testServer(m)
defer c()
ctx := context.Background()
repo, _ := reference.ParseNamed("test.example.com/repo1")
r, err := NewRepository(ctx, repo, e, nil)
if err != nil {
t.Fatal(err)
}
l := r.Blobs(ctx)
stat, err := l.Stat(ctx, d1)
if err != nil {
t.Fatal(err)
}
if stat.Digest != d1 {
t.Fatalf("Unexpected digest: %s, expected %s", stat.Digest, d1)
}
if stat.Size != int64(len(b1)) {
t.Fatalf("Unexpected length: %d, expected %d", stat.Size, len(b1))
}
// TODO(dmcgowan): Test error cases and ErrBlobUnknown case
}
func (store *store) reload() error {
f, err := os.Open(store.jsonPath)
if err != nil {
return err
}
defer f.Close()
if err := json.NewDecoder(f).Decode(&store); err != nil {
return err
}
for _, repository := range store.Repositories {
for refStr, refID := range repository {
ref, err := reference.ParseNamed(refStr)
if err != nil {
// Should never happen
continue
}
if store.referencesByIDCache[refID] == nil {
store.referencesByIDCache[refID] = make(map[string]reference.Named)
}
store.referencesByIDCache[refID][refStr] = ref
}
}
return nil
}
// ImagePush requests the docker host to push an image to a remote registry.
// It executes the privileged function if the operation is unauthorized
// and it tries one more time.
// It's up to the caller to handle the io.ReadCloser and close it properly.
func (cli *Client) ImagePush(ctx context.Context, ref string, options types.ImagePushOptions) (io.ReadCloser, error) {
distributionRef, err := distreference.ParseNamed(ref)
if err != nil {
return nil, err
}
if _, isCanonical := distributionRef.(distreference.Canonical); isCanonical {
return nil, errors.New("cannot push a digest reference")
}
var tag = ""
if nameTaggedRef, isNamedTagged := distributionRef.(distreference.NamedTagged); isNamedTagged {
tag = nameTaggedRef.Tag()
}
query := url.Values{}
query.Set("tag", tag)
resp, err := cli.tryImagePush(ctx, distributionRef.Name(), query, options.RegistryAuth)
if resp.statusCode == http.StatusUnauthorized && options.PrivilegeFunc != nil {
newAuthHeader, privilegeErr := options.PrivilegeFunc()
if privilegeErr != nil {
return nil, privilegeErr
}
resp, err = cli.tryImagePush(ctx, distributionRef.Name(), query, newAuthHeader)
}
if err != nil {
return nil, err
}
return resp.body, nil
}
// ReferencesByName returns the references for a given repository name.
// If there are no references known for this repository name,
// ReferencesByName returns nil.
func (store *store) ReferencesByName(ref reference.Named) []Association {
store.mu.RLock()
defer store.mu.RUnlock()
repository, exists := store.Repositories[ref.Name()]
if !exists {
return nil
}
var associations []Association
for refStr, refID := range repository {
ref, err := reference.ParseNamed(refStr)
if err != nil {
// Should never happen
return nil
}
associations = append(associations,
Association{
Ref: ref,
ImageID: refID,
})
}
return associations
}
func (m customImageMap) Set(value string) error {
parts := strings.Split(value, ",")
if len(parts) != 2 {
return errors.New("invalid custome image format, expected \"name,reference\"")
}
ref, err := reference.Parse(parts[0])
if err != nil {
return err
}
namedTagged, ok := ref.(reference.NamedTagged)
if !ok {
return fmt.Errorf("reference %s must contain name and tag", ref.String())
}
source, err := reference.ParseNamed(parts[1])
if err != nil {
return err
}
m[parts[0]] = CustomImage{
Source: source.String(),
Target: namedTagged,
}
return nil
}
func print(out io.Writer, ctx context.Context, tasks []swarm.Task, resolver *idresolver.IDResolver, noTrunc bool) error {
prevService := ""
prevSlot := 0
for _, task := range tasks {
name, err := resolver.Resolve(ctx, task, task.ID)
nodeValue, err := resolver.Resolve(ctx, swarm.Node{}, task.NodeID)
if err != nil {
return err
}
// Indent the name if necessary
indentedName := name
// Since the new format of the task name is <ServiceName>.<Slot>.<taskID>, we should only compare
// <ServiceName> and <Slot> here.
if prevService == task.ServiceID && prevSlot == task.Slot {
indentedName = fmt.Sprintf(" \\_ %s", indentedName)
}
prevService = task.ServiceID
prevSlot = task.Slot
// Trim and quote the error message.
taskErr := task.Status.Err
if !noTrunc && len(taskErr) > maxErrLength {
taskErr = fmt.Sprintf("%s…", taskErr[:maxErrLength-1])
}
if len(taskErr) > 0 {
taskErr = fmt.Sprintf("\"%s\"", taskErr)
}
image := task.Spec.ContainerSpec.Image
if !noTrunc {
ref, err := distreference.ParseNamed(image)
if err == nil {
// update image string for display
namedTagged, ok := ref.(distreference.NamedTagged)
if ok {
image = namedTagged.Name() + ":" + namedTagged.Tag()
}
}
}
fmt.Fprintf(
out,
psTaskItemFmt,
indentedName,
image,
nodeValue,
command.PrettyPrint(task.DesiredState),
command.PrettyPrint(task.Status.State),
strings.ToLower(units.HumanDuration(time.Since(task.Status.Timestamp))),
taskErr,
portStatus(task.Status.PortStatus),
)
}
return nil
}
// Parse parses the given references and returns the repository and
// tag (if present) from it. If there is an error during parsing, it will
// return an error.
func Parse(ref string) (string, string, error) {
distributionRef, err := distreference.ParseNamed(ref)
if err != nil {
return "", "", err
}
tag := GetTagFromNamedRef(distributionRef)
return distributionRef.Name(), tag, nil
}
// CmdPull pulls an image or a repository from the registry.
//
// Usage: docker pull [OPTIONS] IMAGENAME[:TAG|@DIGEST]
func (cli *DockerCli) CmdPull(args ...string) error {
cmd := Cli.Subcmd("pull", []string{"NAME[:TAG|@DIGEST]"}, Cli.DockerCommands["pull"].Description, true)
allTags := cmd.Bool([]string{"a", "-all-tags"}, false, "Download all tagged images in the repository")
addTrustedFlags(cmd, true)
cmd.Require(flag.Exact, 1)
cmd.ParseFlags(args, true)
remote := cmd.Arg(0)
distributionRef, err := reference.ParseNamed(remote)
if err != nil {
return err
}
var tag string
switch x := distributionRef.(type) {
case reference.Digested:
if *allTags {
return errTagCantBeUsed
}
tag = x.Digest().String()
case reference.Tagged:
if *allTags {
return errTagCantBeUsed
}
tag = x.Tag()
default:
if !*allTags {
tag = tagpkg.DefaultTag
distributionRef, err = reference.WithTag(distributionRef, tag)
if err != nil {
return err
}
fmt.Fprintf(cli.out, "Using default tag: %s\n", tag)
}
}
ref := registry.ParseReference(tag)
// Resolve the Repository name from fqn to RepositoryInfo
repoInfo, err := registry.ParseRepositoryInfo(distributionRef)
if err != nil {
return err
}
if isTrusted() && !ref.HasDigest() {
// Check if tag is digest
authConfig := registry.ResolveAuthConfig(cli.configFile, repoInfo.Index)
return cli.trustedPull(repoInfo, ref, authConfig)
}
v := url.Values{}
v.Set("fromImage", distributionRef.String())
_, _, err = cli.clientRequestAttemptLogin("POST", "/images/create?"+v.Encode(), nil, cli.out, repoInfo.Index, "pull")
return err
}
func splitHost(in string) (url string, ref reference.Named, err error) {
ref, err = reference.ParseNamed(in)
if err != nil {
return
}
url, name := reference.SplitHostname(ref)
ref, err = updateName(ref, name)
return
}
// Validation image reference.
func ValidateImageReference(spec *ImageReferenceValiditySpec) (*ImageReferenceValidity, error) {
log.Printf("Validating %s as a image reference", spec.Reference)
s := spec.Reference
_, err := distreference.ParseNamed(s)
if err != nil {
return &ImageReferenceValidity{Valid: false, Reason: err.Error()}, nil
}
return &ImageReferenceValidity{Valid: true}, nil
}
func digestRef(ref reference.Named, digst string) (reference.Canonical, error) {
rn, err := reference.ParseNamed(ref.Name())
if err != nil {
return nil, err
}
d := digest.Digest(digst)
return reference.WithDigest(rn, d)
}