Remove v1 manifest code

Signed-off-by: Tibor Vass <tibor@docker.com>
(cherry picked from commit 53dad9f027)
Signed-off-by: Tibor Vass <tibor@docker.com>
This commit is contained in:
Tibor Vass 2019-06-18 01:04:17 +00:00
parent 99cd23cefd
commit 99678a93ed
12 changed files with 4 additions and 959 deletions

View File

@ -83,13 +83,6 @@ func installCommonConfigFlags(conf *config.Config, flags *pflag.FlagSet) error {
flags.IntVar(&conf.NetworkControlPlaneMTU, "network-control-plane-mtu", config.DefaultNetworkMtu, "Network Control plane MTU")
// "--deprecated-key-path" is to allow configuration of the key used
// for the daemon ID and the deprecated image signing. It was never
// exposed as a command line option but is added here to allow
// overriding the default path in configuration.
flags.Var(opts.NewQuotedString(&conf.TrustKeyPath), "deprecated-key-path", "Path to key file for ID and image signing")
flags.MarkHidden("deprecated-key-path")
conf.MaxConcurrentDownloads = &maxConcurrentDownloads
conf.MaxConcurrentUploads = &maxConcurrentUploads
return nil
@ -103,10 +96,4 @@ func installRegistryServiceFlags(options *registry.ServiceOptions, flags *pflag.
flags.Var(ana, "allow-nondistributable-artifacts", "Allow push of nondistributable artifacts to registry")
flags.Var(mirrors, "registry-mirror", "Preferred Docker registry mirror")
flags.Var(insecureRegistries, "insecure-registry", "Enable insecure registry communication")
if runtime.GOOS != "windows" {
// TODO: Remove this flag after 3 release cycles (18.03)
flags.BoolVar(&options.V2Only, "disable-legacy-registry", true, "Disable contacting legacy registries")
flags.MarkHidden("disable-legacy-registry")
}
}

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@ -454,17 +454,6 @@ func loadDaemonCliConfig(opts *daemonOptions) (*config.Config, error) {
return nil, err
}
if runtime.GOOS != "windows" {
if flags.Changed("disable-legacy-registry") {
// TODO: Remove this error after 3 release cycles (18.03)
return nil, errors.New("ERROR: The '--disable-legacy-registry' flag has been removed. Interacting with legacy (v1) registries is no longer supported")
}
if !conf.V2Only {
// TODO: Remove this error after 3 release cycles (18.03)
return nil, errors.New("ERROR: The 'disable-legacy-registry' configuration option has been removed. Interacting with legacy (v1) registries is no longer supported")
}
}
if flags.Changed("graph") {
logrus.Warnf(`The "-g / --graph" flag is deprecated. Please use "--data-root" instead`)
}

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@ -8,7 +8,6 @@ import (
"io/ioutil"
"os"
"reflect"
"runtime"
"strings"
"sync"
@ -246,10 +245,6 @@ func New() *Config {
config := Config{}
config.LogConfig.Config = make(map[string]string)
config.ClusterOpts = make(map[string]string)
if runtime.GOOS != "linux" {
config.V2Only = true
}
return &config
}

View File

@ -39,12 +39,7 @@ func newPuller(endpoint registry.APIEndpoint, repoInfo *registry.RepositoryInfo,
repoInfo: repoInfo,
}, nil
case registry.APIVersion1:
return &v1Puller{
v1IDService: metadata.NewV1IDService(imagePullConfig.MetadataStore),
endpoint: endpoint,
config: imagePullConfig,
repoInfo: repoInfo,
}, nil
return nil, fmt.Errorf("protocol version %d no longer supported. Please contact admins of registry %s", endpoint.Version, endpoint.URL)
}
return nil, fmt.Errorf("unknown version %d for registry %s", endpoint.Version, endpoint.URL)
}

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@ -1,365 +0,0 @@
package distribution // import "github.com/docker/docker/distribution"
import (
"context"
"errors"
"fmt"
"io"
"io/ioutil"
"net"
"net/url"
"os"
"strings"
"time"
"github.com/docker/distribution/reference"
"github.com/docker/distribution/registry/client/transport"
"github.com/docker/docker/distribution/metadata"
"github.com/docker/docker/distribution/xfer"
"github.com/docker/docker/dockerversion"
"github.com/docker/docker/image"
"github.com/docker/docker/image/v1"
"github.com/docker/docker/layer"
"github.com/docker/docker/pkg/ioutils"
"github.com/docker/docker/pkg/progress"
"github.com/docker/docker/pkg/stringid"
"github.com/docker/docker/registry"
specs "github.com/opencontainers/image-spec/specs-go/v1"
"github.com/sirupsen/logrus"
)
type v1Puller struct {
v1IDService *metadata.V1IDService
endpoint registry.APIEndpoint
config *ImagePullConfig
repoInfo *registry.RepositoryInfo
session *registry.Session
}
func (p *v1Puller) Pull(ctx context.Context, ref reference.Named, _ *specs.Platform) error {
if _, isCanonical := ref.(reference.Canonical); isCanonical {
// Allowing fallback, because HTTPS v1 is before HTTP v2
return fallbackError{err: ErrNoSupport{Err: errors.New("Cannot pull by digest with v1 registry")}}
}
tlsConfig, err := p.config.RegistryService.TLSConfig(p.repoInfo.Index.Name)
if err != nil {
return err
}
// Adds Docker-specific headers as well as user-specified headers (metaHeaders)
tr := transport.NewTransport(
// TODO(tiborvass): was ReceiveTimeout
registry.NewTransport(tlsConfig),
registry.Headers(dockerversion.DockerUserAgent(ctx), p.config.MetaHeaders)...,
)
client := registry.HTTPClient(tr)
v1Endpoint := p.endpoint.ToV1Endpoint(dockerversion.DockerUserAgent(ctx), p.config.MetaHeaders)
p.session, err = registry.NewSession(client, p.config.AuthConfig, v1Endpoint)
if err != nil {
// TODO(dmcgowan): Check if should fallback
logrus.Debugf("Fallback from error: %s", err)
return fallbackError{err: err}
}
if err := p.pullRepository(ctx, ref); err != nil {
// TODO(dmcgowan): Check if should fallback
return err
}
progress.Message(p.config.ProgressOutput, "", p.repoInfo.Name.Name()+": this image was pulled from a legacy registry. Important: This registry version will not be supported in future versions of docker.")
return nil
}
func (p *v1Puller) pullRepository(ctx context.Context, ref reference.Named) error {
progress.Message(p.config.ProgressOutput, "", "Pulling repository "+p.repoInfo.Name.Name())
tagged, isTagged := ref.(reference.NamedTagged)
repoData, err := p.session.GetRepositoryData(p.repoInfo.Name)
if err != nil {
if strings.Contains(err.Error(), "HTTP code: 404") {
if isTagged {
return fmt.Errorf("Error: image %s:%s not found", reference.Path(p.repoInfo.Name), tagged.Tag())
}
return fmt.Errorf("Error: image %s not found", reference.Path(p.repoInfo.Name))
}
// Unexpected HTTP error
return err
}
logrus.Debug("Retrieving the tag list")
var tagsList map[string]string
if !isTagged {
tagsList, err = p.session.GetRemoteTags(repoData.Endpoints, p.repoInfo.Name)
} else {
var tagID string
tagsList = make(map[string]string)
tagID, err = p.session.GetRemoteTag(repoData.Endpoints, p.repoInfo.Name, tagged.Tag())
if err == registry.ErrRepoNotFound {
return fmt.Errorf("Tag %s not found in repository %s", tagged.Tag(), p.repoInfo.Name.Name())
}
tagsList[tagged.Tag()] = tagID
}
if err != nil {
logrus.Errorf("unable to get remote tags: %s", err)
return err
}
for tag, id := range tagsList {
repoData.ImgList[id] = &registry.ImgData{
ID: id,
Tag: tag,
Checksum: "",
}
}
layersDownloaded := false
for _, imgData := range repoData.ImgList {
if isTagged && imgData.Tag != tagged.Tag() {
continue
}
err := p.downloadImage(ctx, repoData, imgData, &layersDownloaded)
if err != nil {
return err
}
}
writeStatus(reference.FamiliarString(ref), p.config.ProgressOutput, layersDownloaded)
return nil
}
func (p *v1Puller) downloadImage(ctx context.Context, repoData *registry.RepositoryData, img *registry.ImgData, layersDownloaded *bool) error {
if img.Tag == "" {
logrus.Debugf("Image (id: %s) present in this repository but untagged, skipping", img.ID)
return nil
}
localNameRef, err := reference.WithTag(p.repoInfo.Name, img.Tag)
if err != nil {
retErr := fmt.Errorf("Image (id: %s) has invalid tag: %s", img.ID, img.Tag)
logrus.Debug(retErr.Error())
return retErr
}
if err := v1.ValidateID(img.ID); err != nil {
return err
}
progress.Updatef(p.config.ProgressOutput, stringid.TruncateID(img.ID), "Pulling image (%s) from %s", img.Tag, p.repoInfo.Name.Name())
success := false
var lastErr error
for _, ep := range p.repoInfo.Index.Mirrors {
ep += "v1/"
progress.Updatef(p.config.ProgressOutput, stringid.TruncateID(img.ID), fmt.Sprintf("Pulling image (%s) from %s, mirror: %s", img.Tag, p.repoInfo.Name.Name(), ep))
if err = p.pullImage(ctx, img.ID, ep, localNameRef, layersDownloaded); err != nil {
// Don't report errors when pulling from mirrors.
logrus.Debugf("Error pulling image (%s) from %s, mirror: %s, %s", img.Tag, p.repoInfo.Name.Name(), ep, err)
continue
}
success = true
break
}
if !success {
for _, ep := range repoData.Endpoints {
progress.Updatef(p.config.ProgressOutput, stringid.TruncateID(img.ID), "Pulling image (%s) from %s, endpoint: %s", img.Tag, p.repoInfo.Name.Name(), ep)
if err = p.pullImage(ctx, img.ID, ep, localNameRef, layersDownloaded); err != nil {
// It's not ideal that only the last error is returned, it would be better to concatenate the errors.
// As the error is also given to the output stream the user will see the error.
lastErr = err
progress.Updatef(p.config.ProgressOutput, stringid.TruncateID(img.ID), "Error pulling image (%s) from %s, endpoint: %s, %s", img.Tag, p.repoInfo.Name.Name(), ep, err)
continue
}
success = true
break
}
}
if !success {
err := fmt.Errorf("Error pulling image (%s) from %s, %v", img.Tag, p.repoInfo.Name.Name(), lastErr)
progress.Update(p.config.ProgressOutput, stringid.TruncateID(img.ID), err.Error())
return err
}
return nil
}
func (p *v1Puller) pullImage(ctx context.Context, v1ID, endpoint string, localNameRef reference.Named, layersDownloaded *bool) (err error) {
var history []string
history, err = p.session.GetRemoteHistory(v1ID, endpoint)
if err != nil {
return err
}
if len(history) < 1 {
return fmt.Errorf("empty history for image %s", v1ID)
}
progress.Update(p.config.ProgressOutput, stringid.TruncateID(v1ID), "Pulling dependent layers")
var (
descriptors []xfer.DownloadDescriptor
newHistory []image.History
imgJSON []byte
imgSize int64
)
// Iterate over layers, in order from bottom-most to top-most. Download
// config for all layers and create descriptors.
for i := len(history) - 1; i >= 0; i-- {
v1LayerID := history[i]
imgJSON, imgSize, err = p.downloadLayerConfig(v1LayerID, endpoint)
if err != nil {
return err
}
// Create a new-style config from the legacy configs
h, err := v1.HistoryFromConfig(imgJSON, false)
if err != nil {
return err
}
newHistory = append(newHistory, h)
layerDescriptor := &v1LayerDescriptor{
v1LayerID: v1LayerID,
indexName: p.repoInfo.Index.Name,
endpoint: endpoint,
v1IDService: p.v1IDService,
layersDownloaded: layersDownloaded,
layerSize: imgSize,
session: p.session,
}
descriptors = append(descriptors, layerDescriptor)
}
rootFS := image.NewRootFS()
resultRootFS, release, err := p.config.DownloadManager.Download(ctx, *rootFS, "", descriptors, p.config.ProgressOutput)
if err != nil {
return err
}
defer release()
config, err := v1.MakeConfigFromV1Config(imgJSON, &resultRootFS, newHistory)
if err != nil {
return err
}
imageID, err := p.config.ImageStore.Put(config)
if err != nil {
return err
}
if p.config.ReferenceStore != nil {
if err := p.config.ReferenceStore.AddTag(localNameRef, imageID, true); err != nil {
return err
}
}
return nil
}
func (p *v1Puller) downloadLayerConfig(v1LayerID, endpoint string) (imgJSON []byte, imgSize int64, err error) {
progress.Update(p.config.ProgressOutput, stringid.TruncateID(v1LayerID), "Pulling metadata")
retries := 5
for j := 1; j <= retries; j++ {
imgJSON, imgSize, err := p.session.GetRemoteImageJSON(v1LayerID, endpoint)
if err != nil && j == retries {
progress.Update(p.config.ProgressOutput, stringid.TruncateID(v1LayerID), "Error pulling layer metadata")
return nil, 0, err
} else if err != nil {
time.Sleep(time.Duration(j) * 500 * time.Millisecond)
continue
}
return imgJSON, imgSize, nil
}
// not reached
return nil, 0, nil
}
type v1LayerDescriptor struct {
v1LayerID string
indexName string
endpoint string
v1IDService *metadata.V1IDService
layersDownloaded *bool
layerSize int64
session *registry.Session
tmpFile *os.File
}
func (ld *v1LayerDescriptor) Key() string {
return "v1:" + ld.v1LayerID
}
func (ld *v1LayerDescriptor) ID() string {
return stringid.TruncateID(ld.v1LayerID)
}
func (ld *v1LayerDescriptor) DiffID() (layer.DiffID, error) {
return ld.v1IDService.Get(ld.v1LayerID, ld.indexName)
}
func (ld *v1LayerDescriptor) Download(ctx context.Context, progressOutput progress.Output) (io.ReadCloser, int64, error) {
progress.Update(progressOutput, ld.ID(), "Pulling fs layer")
layerReader, err := ld.session.GetRemoteImageLayer(ld.v1LayerID, ld.endpoint, ld.layerSize)
if err != nil {
progress.Update(progressOutput, ld.ID(), "Error pulling dependent layers")
if uerr, ok := err.(*url.Error); ok {
err = uerr.Err
}
if terr, ok := err.(net.Error); ok && terr.Timeout() {
return nil, 0, err
}
return nil, 0, xfer.DoNotRetry{Err: err}
}
*ld.layersDownloaded = true
ld.tmpFile, err = ioutil.TempFile("", "GetImageBlob")
if err != nil {
layerReader.Close()
return nil, 0, err
}
reader := progress.NewProgressReader(ioutils.NewCancelReadCloser(ctx, layerReader), progressOutput, ld.layerSize, ld.ID(), "Downloading")
defer reader.Close()
_, err = io.Copy(ld.tmpFile, reader)
if err != nil {
ld.Close()
return nil, 0, err
}
progress.Update(progressOutput, ld.ID(), "Download complete")
logrus.Debugf("Downloaded %s to tempfile %s", ld.ID(), ld.tmpFile.Name())
ld.tmpFile.Seek(0, 0)
// hand off the temporary file to the download manager, so it will only
// be closed once
tmpFile := ld.tmpFile
ld.tmpFile = nil
return ioutils.NewReadCloserWrapper(tmpFile, func() error {
tmpFile.Close()
err := os.RemoveAll(tmpFile.Name())
if err != nil {
logrus.Errorf("Failed to remove temp file: %s", tmpFile.Name())
}
return err
}), ld.layerSize, nil
}
func (ld *v1LayerDescriptor) Close() {
if ld.tmpFile != nil {
ld.tmpFile.Close()
if err := os.RemoveAll(ld.tmpFile.Name()); err != nil {
logrus.Errorf("Failed to remove temp file: %s", ld.tmpFile.Name())
}
ld.tmpFile = nil
}
}
func (ld *v1LayerDescriptor) Registered(diffID layer.DiffID) {
// Cache mapping from this layer's DiffID to the blobsum
ld.v1IDService.Set(ld.v1LayerID, ld.indexName, diffID)
}

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@ -41,13 +41,7 @@ func NewPusher(ref reference.Named, endpoint registry.APIEndpoint, repoInfo *reg
config: imagePushConfig,
}, nil
case registry.APIVersion1:
return &v1Pusher{
v1IDService: metadata.NewV1IDService(imagePushConfig.MetadataStore),
ref: ref,
endpoint: endpoint,
repoInfo: repoInfo,
config: imagePushConfig,
}, nil
return nil, fmt.Errorf("protocol version %d no longer supported. Please contact admins of registry %s", endpoint.Version, endpoint.URL)
}
return nil, fmt.Errorf("unknown version %d for registry %s", endpoint.Version, endpoint.URL)
}

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@ -1,457 +0,0 @@
package distribution // import "github.com/docker/docker/distribution"
import (
"context"
"fmt"
"sync"
"github.com/docker/distribution/reference"
"github.com/docker/distribution/registry/client/transport"
"github.com/docker/docker/distribution/metadata"
"github.com/docker/docker/dockerversion"
"github.com/docker/docker/image"
"github.com/docker/docker/image/v1"
"github.com/docker/docker/layer"
"github.com/docker/docker/pkg/ioutils"
"github.com/docker/docker/pkg/progress"
"github.com/docker/docker/pkg/stringid"
"github.com/docker/docker/pkg/system"
"github.com/docker/docker/registry"
"github.com/opencontainers/go-digest"
"github.com/sirupsen/logrus"
)
type v1Pusher struct {
v1IDService *metadata.V1IDService
endpoint registry.APIEndpoint
ref reference.Named
repoInfo *registry.RepositoryInfo
config *ImagePushConfig
session *registry.Session
}
func (p *v1Pusher) Push(ctx context.Context) error {
tlsConfig, err := p.config.RegistryService.TLSConfig(p.repoInfo.Index.Name)
if err != nil {
return err
}
// Adds Docker-specific headers as well as user-specified headers (metaHeaders)
tr := transport.NewTransport(
// TODO(tiborvass): was NoTimeout
registry.NewTransport(tlsConfig),
registry.Headers(dockerversion.DockerUserAgent(ctx), p.config.MetaHeaders)...,
)
client := registry.HTTPClient(tr)
v1Endpoint := p.endpoint.ToV1Endpoint(dockerversion.DockerUserAgent(ctx), p.config.MetaHeaders)
p.session, err = registry.NewSession(client, p.config.AuthConfig, v1Endpoint)
if err != nil {
// TODO(dmcgowan): Check if should fallback
return fallbackError{err: err}
}
if err := p.pushRepository(ctx); err != nil {
// TODO(dmcgowan): Check if should fallback
return err
}
return nil
}
// v1Image exposes the configuration, filesystem layer ID, and a v1 ID for an
// image being pushed to a v1 registry.
type v1Image interface {
Config() []byte
Layer() layer.Layer
V1ID() string
}
type v1ImageCommon struct {
layer layer.Layer
config []byte
v1ID string
}
func (common *v1ImageCommon) Config() []byte {
return common.config
}
func (common *v1ImageCommon) V1ID() string {
return common.v1ID
}
func (common *v1ImageCommon) Layer() layer.Layer {
return common.layer
}
// v1TopImage defines a runnable (top layer) image being pushed to a v1
// registry.
type v1TopImage struct {
v1ImageCommon
imageID image.ID
}
func newV1TopImage(imageID image.ID, img *image.Image, l layer.Layer, parent *v1DependencyImage) (*v1TopImage, error) {
v1ID := imageID.Digest().Hex()
parentV1ID := ""
if parent != nil {
parentV1ID = parent.V1ID()
}
config, err := v1.MakeV1ConfigFromConfig(img, v1ID, parentV1ID, false)
if err != nil {
return nil, err
}
return &v1TopImage{
v1ImageCommon: v1ImageCommon{
v1ID: v1ID,
config: config,
layer: l,
},
imageID: imageID,
}, nil
}
// v1DependencyImage defines a dependency layer being pushed to a v1 registry.
type v1DependencyImage struct {
v1ImageCommon
}
func newV1DependencyImage(l layer.Layer, parent *v1DependencyImage) *v1DependencyImage {
v1ID := digest.Digest(l.ChainID()).Hex()
var config string
if parent != nil {
config = fmt.Sprintf(`{"id":"%s","parent":"%s"}`, v1ID, parent.V1ID())
} else {
config = fmt.Sprintf(`{"id":"%s"}`, v1ID)
}
return &v1DependencyImage{
v1ImageCommon: v1ImageCommon{
v1ID: v1ID,
config: []byte(config),
layer: l,
},
}
}
// Retrieve the all the images to be uploaded in the correct order
func (p *v1Pusher) getImageList() (imageList []v1Image, tagsByImage map[image.ID][]string, referencedLayers []PushLayer, err error) {
tagsByImage = make(map[image.ID][]string)
// Ignore digest references
if _, isCanonical := p.ref.(reference.Canonical); isCanonical {
return
}
tagged, isTagged := p.ref.(reference.NamedTagged)
if isTagged {
// Push a specific tag
var imgID image.ID
var dgst digest.Digest
dgst, err = p.config.ReferenceStore.Get(p.ref)
if err != nil {
return
}
imgID = image.IDFromDigest(dgst)
imageList, err = p.imageListForTag(imgID, nil, &referencedLayers)
if err != nil {
return
}
tagsByImage[imgID] = []string{tagged.Tag()}
return
}
imagesSeen := make(map[digest.Digest]struct{})
dependenciesSeen := make(map[layer.ChainID]*v1DependencyImage)
associations := p.config.ReferenceStore.ReferencesByName(p.ref)
for _, association := range associations {
if tagged, isTagged = association.Ref.(reference.NamedTagged); !isTagged {
// Ignore digest references.
continue
}
imgID := image.IDFromDigest(association.ID)
tagsByImage[imgID] = append(tagsByImage[imgID], tagged.Tag())
if _, present := imagesSeen[association.ID]; present {
// Skip generating image list for already-seen image
continue
}
imagesSeen[association.ID] = struct{}{}
imageListForThisTag, err := p.imageListForTag(imgID, dependenciesSeen, &referencedLayers)
if err != nil {
return nil, nil, nil, err
}
// append to main image list
imageList = append(imageList, imageListForThisTag...)
}
if len(imageList) == 0 {
return nil, nil, nil, fmt.Errorf("No images found for the requested repository / tag")
}
logrus.Debugf("Image list: %v", imageList)
logrus.Debugf("Tags by image: %v", tagsByImage)
return
}
func (p *v1Pusher) imageListForTag(imgID image.ID, dependenciesSeen map[layer.ChainID]*v1DependencyImage, referencedLayers *[]PushLayer) (imageListForThisTag []v1Image, err error) {
ics, ok := p.config.ImageStore.(*imageConfigStore)
if !ok {
return nil, fmt.Errorf("only image store images supported for v1 push")
}
img, err := ics.Store.Get(imgID)
if err != nil {
return nil, err
}
topLayerID := img.RootFS.ChainID()
if !system.IsOSSupported(img.OperatingSystem()) {
return nil, system.ErrNotSupportedOperatingSystem
}
pl, err := p.config.LayerStores[img.OperatingSystem()].Get(topLayerID)
*referencedLayers = append(*referencedLayers, pl)
if err != nil {
return nil, fmt.Errorf("failed to get top layer from image: %v", err)
}
// V1 push is deprecated, only support existing layerstore layers
lsl, ok := pl.(*storeLayer)
if !ok {
return nil, fmt.Errorf("only layer store layers supported for v1 push")
}
l := lsl.Layer
dependencyImages, parent := generateDependencyImages(l.Parent(), dependenciesSeen)
topImage, err := newV1TopImage(imgID, img, l, parent)
if err != nil {
return nil, err
}
imageListForThisTag = append(dependencyImages, topImage)
return
}
func generateDependencyImages(l layer.Layer, dependenciesSeen map[layer.ChainID]*v1DependencyImage) (imageListForThisTag []v1Image, parent *v1DependencyImage) {
if l == nil {
return nil, nil
}
imageListForThisTag, parent = generateDependencyImages(l.Parent(), dependenciesSeen)
if dependenciesSeen != nil {
if dependencyImage, present := dependenciesSeen[l.ChainID()]; present {
// This layer is already on the list, we can ignore it
// and all its parents.
return imageListForThisTag, dependencyImage
}
}
dependencyImage := newV1DependencyImage(l, parent)
imageListForThisTag = append(imageListForThisTag, dependencyImage)
if dependenciesSeen != nil {
dependenciesSeen[l.ChainID()] = dependencyImage
}
return imageListForThisTag, dependencyImage
}
// createImageIndex returns an index of an image's layer IDs and tags.
func createImageIndex(images []v1Image, tags map[image.ID][]string) []*registry.ImgData {
var imageIndex []*registry.ImgData
for _, img := range images {
v1ID := img.V1ID()
if topImage, isTopImage := img.(*v1TopImage); isTopImage {
if tags, hasTags := tags[topImage.imageID]; hasTags {
// If an image has tags you must add an entry in the image index
// for each tag
for _, tag := range tags {
imageIndex = append(imageIndex, &registry.ImgData{
ID: v1ID,
Tag: tag,
})
}
continue
}
}
// If the image does not have a tag it still needs to be sent to the
// registry with an empty tag so that it is associated with the repository
imageIndex = append(imageIndex, &registry.ImgData{
ID: v1ID,
Tag: "",
})
}
return imageIndex
}
// lookupImageOnEndpoint checks the specified endpoint to see if an image exists
// and if it is absent then it sends the image id to the channel to be pushed.
func (p *v1Pusher) lookupImageOnEndpoint(wg *sync.WaitGroup, endpoint string, images chan v1Image, imagesToPush chan string) {
defer wg.Done()
for image := range images {
v1ID := image.V1ID()
truncID := stringid.TruncateID(image.Layer().DiffID().String())
if err := p.session.LookupRemoteImage(v1ID, endpoint); err != nil {
logrus.Errorf("Error in LookupRemoteImage: %s", err)
imagesToPush <- v1ID
progress.Update(p.config.ProgressOutput, truncID, "Waiting")
} else {
progress.Update(p.config.ProgressOutput, truncID, "Already exists")
}
}
}
func (p *v1Pusher) pushImageToEndpoint(ctx context.Context, endpoint string, imageList []v1Image, tags map[image.ID][]string, repo *registry.RepositoryData) error {
workerCount := len(imageList)
// start a maximum of 5 workers to check if images exist on the specified endpoint.
if workerCount > 5 {
workerCount = 5
}
var (
wg = &sync.WaitGroup{}
imageData = make(chan v1Image, workerCount*2)
imagesToPush = make(chan string, workerCount*2)
pushes = make(chan map[string]struct{}, 1)
)
for i := 0; i < workerCount; i++ {
wg.Add(1)
go p.lookupImageOnEndpoint(wg, endpoint, imageData, imagesToPush)
}
// start a go routine that consumes the images to push
go func() {
shouldPush := make(map[string]struct{})
for id := range imagesToPush {
shouldPush[id] = struct{}{}
}
pushes <- shouldPush
}()
for _, v1Image := range imageList {
imageData <- v1Image
}
// close the channel to notify the workers that there will be no more images to check.
close(imageData)
wg.Wait()
close(imagesToPush)
// wait for all the images that require pushes to be collected into a consumable map.
shouldPush := <-pushes
// finish by pushing any images and tags to the endpoint. The order that the images are pushed
// is very important that is why we are still iterating over the ordered list of imageIDs.
for _, img := range imageList {
v1ID := img.V1ID()
if _, push := shouldPush[v1ID]; push {
if _, err := p.pushImage(ctx, img, endpoint); err != nil {
// FIXME: Continue on error?
return err
}
}
if topImage, isTopImage := img.(*v1TopImage); isTopImage {
for _, tag := range tags[topImage.imageID] {
progress.Messagef(p.config.ProgressOutput, "", "Pushing tag for rev [%s] on {%s}", stringid.TruncateID(v1ID), endpoint+"repositories/"+reference.Path(p.repoInfo.Name)+"/tags/"+tag)
if err := p.session.PushRegistryTag(p.repoInfo.Name, v1ID, tag, endpoint); err != nil {
return err
}
}
}
}
return nil
}
// pushRepository pushes layers that do not already exist on the registry.
func (p *v1Pusher) pushRepository(ctx context.Context) error {
imgList, tags, referencedLayers, err := p.getImageList()
defer func() {
for _, l := range referencedLayers {
l.Release()
}
}()
if err != nil {
return err
}
imageIndex := createImageIndex(imgList, tags)
for _, data := range imageIndex {
logrus.Debugf("Pushing ID: %s with Tag: %s", data.ID, data.Tag)
}
// Register all the images in a repository with the registry
// If an image is not in this list it will not be associated with the repository
repoData, err := p.session.PushImageJSONIndex(p.repoInfo.Name, imageIndex, false, nil)
if err != nil {
return err
}
// push the repository to each of the endpoints only if it does not exist.
for _, endpoint := range repoData.Endpoints {
if err := p.pushImageToEndpoint(ctx, endpoint, imgList, tags, repoData); err != nil {
return err
}
}
_, err = p.session.PushImageJSONIndex(p.repoInfo.Name, imageIndex, true, repoData.Endpoints)
return err
}
func (p *v1Pusher) pushImage(ctx context.Context, v1Image v1Image, ep string) (checksum string, err error) {
l := v1Image.Layer()
v1ID := v1Image.V1ID()
truncID := stringid.TruncateID(l.DiffID().String())
jsonRaw := v1Image.Config()
progress.Update(p.config.ProgressOutput, truncID, "Pushing")
// General rule is to use ID for graph accesses and compatibilityID for
// calls to session.registry()
imgData := &registry.ImgData{
ID: v1ID,
}
// Send the json
if err := p.session.PushImageJSONRegistry(imgData, jsonRaw, ep); err != nil {
if err == registry.ErrAlreadyExists {
progress.Update(p.config.ProgressOutput, truncID, "Image already pushed, skipping")
return "", nil
}
return "", err
}
arch, err := l.TarStream()
if err != nil {
return "", err
}
defer arch.Close()
// don't care if this fails; best effort
size, _ := l.DiffSize()
// Send the layer
logrus.Debugf("rendered layer for %s of [%d] size", v1ID, size)
reader := progress.NewProgressReader(ioutils.NewCancelReadCloser(ctx, arch), p.config.ProgressOutput, size, truncID, "Pushing")
defer reader.Close()
checksum, checksumPayload, err := p.session.PushImageLayerRegistry(v1ID, reader, ep, jsonRaw)
if err != nil {
return "", err
}
imgData.Checksum = checksum
imgData.ChecksumPayload = checksumPayload
// Send the checksum
if err := p.session.PushImageChecksumRegistry(imgData, ep); err != nil {
return "", err
}
if err := p.v1IDService.Set(v1ID, p.repoInfo.Index.Name, l.DiffID()); err != nil {
logrus.Warnf("Could not set v1 ID mapping: %v", err)
}
progress.Update(p.config.ProgressOutput, truncID, "Image successfully pushed")
return imgData.Checksum, nil
}

View File

@ -92,7 +92,7 @@ func CreateInRegistry(ctx context.Context, repo string, auth *types.AuthConfig,
return nil, nil
}
regService, err := registry.NewService(registry.ServiceOptions{V2Only: true})
regService, err := registry.NewService(registry.ServiceOptions{})
if err != nil {
return err
}

View File

@ -19,16 +19,11 @@ type ServiceOptions struct {
AllowNondistributableArtifacts []string `json:"allow-nondistributable-artifacts,omitempty"`
Mirrors []string `json:"registry-mirrors,omitempty"`
InsecureRegistries []string `json:"insecure-registries,omitempty"`
// V2Only controls access to legacy registries. If it is set to true via the
// command line flag the daemon will not attempt to contact v1 legacy registries
V2Only bool `json:"disable-legacy-registry,omitempty"`
}
// serviceConfig holds daemon configuration for the registry service.
type serviceConfig struct {
registrytypes.ServiceConfig
V2Only bool
}
var (
@ -76,7 +71,6 @@ func newServiceConfig(options ServiceOptions) (*serviceConfig, error) {
// Hack: Bypass setting the mirrors to IndexConfigs since they are going away
// and Mirrors are only for the official registry anyways.
},
V2Only: options.V2Only,
}
if err := config.LoadAllowNondistributableArtifacts(options.AllowNondistributableArtifacts); err != nil {
return nil, err

View File

@ -309,20 +309,5 @@ func (s *DefaultService) LookupPushEndpoints(hostname string) (endpoints []APIEn
}
func (s *DefaultService) lookupEndpoints(hostname string) (endpoints []APIEndpoint, err error) {
endpoints, err = s.lookupV2Endpoints(hostname)
if err != nil {
return nil, err
}
if s.config.V2Only {
return endpoints, nil
}
legacyEndpoints, err := s.lookupV1Endpoints(hostname)
if err != nil {
return nil, err
}
endpoints = append(endpoints, legacyEndpoints...)
return endpoints, nil
return s.lookupV2Endpoints(hostname)
}

View File

@ -1,40 +0,0 @@
package registry // import "github.com/docker/docker/registry"
import "net/url"
func (s *DefaultService) lookupV1Endpoints(hostname string) (endpoints []APIEndpoint, err error) {
if hostname == DefaultNamespace || hostname == DefaultV2Registry.Host || hostname == IndexHostname {
return []APIEndpoint{}, nil
}
tlsConfig, err := s.tlsConfig(hostname)
if err != nil {
return nil, err
}
endpoints = []APIEndpoint{
{
URL: &url.URL{
Scheme: "https",
Host: hostname,
},
Version: APIVersion1,
TrimHostname: true,
TLSConfig: tlsConfig,
},
}
if tlsConfig.InsecureSkipVerify {
endpoints = append(endpoints, APIEndpoint{ // or this
URL: &url.URL{
Scheme: "http",
Host: hostname,
},
Version: APIVersion1,
TrimHostname: true,
// used to check if supposed to be secure via InsecureSkipVerify
TLSConfig: tlsConfig,
})
}
return endpoints, nil
}

View File

@ -1,32 +0,0 @@
package registry // import "github.com/docker/docker/registry"
import (
"os"
"testing"
"gotest.tools/skip"
)
func TestLookupV1Endpoints(t *testing.T) {
skip.If(t, os.Getuid() != 0, "skipping test that requires root")
s, err := NewService(ServiceOptions{})
if err != nil {
t.Fatal(err)
}
cases := []struct {
hostname string
expectedLen int
}{
{"example.com", 1},
{DefaultNamespace, 0},
{DefaultV2Registry.Host, 0},
{IndexHostname, 0},
}
for _, c := range cases {
if ret, err := s.lookupV1Endpoints(c.hostname); err != nil || len(ret) != c.expectedLen {
t.Errorf("lookupV1Endpoints(`"+c.hostname+"`) returned %+v and %+v", ret, err)
}
}
}