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Golang metadata.NewV2MetadataService函数代码示例

本文整理汇总了Golang中github.com/docker/docker/distribution/metadata.NewV2MetadataService函数的典型用法代码示例。如果您正苦于以下问题：Golang NewV2MetadataService函数的具体用法？Golang NewV2MetadataService怎么用？Golang NewV2MetadataService使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了NewV2MetadataService函数的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。

示例1: newPuller

// newPuller returns a Puller interface that will pull from either a v1 or v2
// registry. The endpoint argument contains a Version field that determines
// whether a v1 or v2 puller will be created. The other parameters are passed
// through to the underlying puller implementation for use during the actual
// pull operation.
func newPuller(endpoint registry.APIEndpoint, repoInfo *registry.RepositoryInfo, imagePullConfig *ImagePullConfig) (Puller, error) {
	switch endpoint.Version {
	case registry.APIVersion2:
		return &v2Puller{
			V2MetadataService: metadata.NewV2MetadataService(imagePullConfig.MetadataStore),
			endpoint:          endpoint,
			config:            imagePullConfig,
			repoInfo:          repoInfo,
		}, nil
	case registry.APIVersion1:
		return &v1Puller{
			v1IDService: metadata.NewV1IDService(imagePullConfig.MetadataStore),
			endpoint:    endpoint,
			config:      imagePullConfig,
			repoInfo:    repoInfo,
		}, nil
	}
	return nil, fmt.Errorf("unknown version %d for registry %s", endpoint.Version, endpoint.URL)
}
开发者ID:SUSE，项目名称:docker.mirror，代码行数:24，代码来源:pull.go

示例2: migrateImage

func migrateImage(id, root string, ls graphIDRegistrar, is image.Store, ms metadata.Store, mappings map[string]image.ID) (err error) {
	defer func() {
		if err != nil {
			logrus.Errorf("migration failed for %v, err: %v", id, err)
		}
	}()

	parent, err := getParent(filepath.Join(root, graphDirName, id))
	if err != nil {
		return err
	}

	var parentID image.ID
	if parent != "" {
		var exists bool
		if parentID, exists = mappings[parent]; !exists {
			if err := migrateImage(parent, root, ls, is, ms, mappings); err != nil {
				// todo: fail or allow broken chains?
				return err
			}
			parentID = mappings[parent]
		}
	}

	rootFS := image.NewRootFS()
	var history []image.History

	if parentID != "" {
		parentImg, err := is.Get(parentID)
		if err != nil {
			return err
		}

		rootFS = parentImg.RootFS
		history = parentImg.History
	}

	diffIDData, err := ioutil.ReadFile(filepath.Join(root, graphDirName, id, migrationDiffIDFileName))
	if err != nil {
		return err
	}
	diffID, err := digest.ParseDigest(string(diffIDData))
	if err != nil {
		return err
	}

	sizeStr, err := ioutil.ReadFile(filepath.Join(root, graphDirName, id, migrationSizeFileName))
	if err != nil {
		return err
	}
	size, err := strconv.ParseInt(string(sizeStr), 10, 64)
	if err != nil {
		return err
	}

	layer, err := ls.RegisterByGraphID(id, rootFS.ChainID(), layer.DiffID(diffID), filepath.Join(root, graphDirName, id, migrationTarDataFileName), size)
	if err != nil {
		return err
	}
	logrus.Infof("migrated layer %s to %s", id, layer.DiffID())

	jsonFile := filepath.Join(root, graphDirName, id, "json")
	imageJSON, err := ioutil.ReadFile(jsonFile)
	if err != nil {
		return err
	}

	h, err := imagev1.HistoryFromConfig(imageJSON, false)
	if err != nil {
		return err
	}
	history = append(history, h)

	rootFS.Append(layer.DiffID())

	config, err := imagev1.MakeConfigFromV1Config(imageJSON, rootFS, history)
	if err != nil {
		return err
	}
	strongID, err := is.Create(config)
	if err != nil {
		return err
	}
	logrus.Infof("migrated image %s to %s", id, strongID)

	if parentID != "" {
		if err := is.SetParent(strongID, parentID); err != nil {
			return err
		}
	}

	checksum, err := ioutil.ReadFile(filepath.Join(root, graphDirName, id, "checksum"))
	if err == nil { // best effort
		dgst, err := digest.ParseDigest(string(checksum))
		if err == nil {
			V2MetadataService := metadata.NewV2MetadataService(ms)
			V2MetadataService.Add(layer.DiffID(), metadata.V2Metadata{Digest: dgst})
		}
	}
	_, err = ls.Release(layer)
//.........这里部分代码省略.........
开发者ID:docker，项目名称:v1.10-migrator，代码行数:101，代码来源:migratev1.go

示例3: TestMigrateImages

func TestMigrateImages(t *testing.T) {
	// TODO Windows: Figure out why this is failing
	if runtime.GOOS == "windows" {
		t.Skip("Failing on Windows")
	}
	if runtime.GOARCH != "amd64" {
		t.Skip("Test tailored to amd64 architecture")
	}
	tmpdir, err := ioutil.TempDir("", "migrate-images")
	if err != nil {
		t.Fatal(err)
	}
	defer os.RemoveAll(tmpdir)

	// busybox from 1.9
	id1, err := addImage(tmpdir, `{"architecture":"amd64","config":{"Hostname":"23304fc829f9","Domainname":"","User":"","AttachStdin":false,"AttachStdout":false,"AttachStderr":false,"Tty":false,"OpenStdin":false,"StdinOnce":false,"Env":null,"Cmd":null,"Image":"","Volumes":null,"WorkingDir":"","Entrypoint":null,"OnBuild":null,"Labels":null},"container":"23304fc829f9b9349416f6eb1afec162907eba3a328f51d53a17f8986f865d65","container_config":{"Hostname":"23304fc829f9","Domainname":"","User":"","AttachStdin":false,"AttachStdout":false,"AttachStderr":false,"Tty":false,"OpenStdin":false,"StdinOnce":false,"Env":null,"Cmd":["/bin/sh","-c","#(nop) ADD file:a3bc1e842b69636f9df5256c49c5374fb4eef1e281fe3f282c65fb853ee171c5 in /"],"Image":"","Volumes":null,"WorkingDir":"","Entrypoint":null,"OnBuild":null,"Labels":null},"created":"2015-10-31T22:22:54.690851953Z","docker_version":"1.8.2","layer_id":"sha256:55dc925c23d1ed82551fd018c27ac3ee731377b6bad3963a2a4e76e753d70e57","os":"linux"}`, "", "")
	if err != nil {
		t.Fatal(err)
	}

	id2, err := addImage(tmpdir, `{"architecture":"amd64","config":{"Hostname":"23304fc829f9","Domainname":"","User":"","AttachStdin":false,"AttachStdout":false,"AttachStderr":false,"Tty":false,"OpenStdin":false,"StdinOnce":false,"Env":null,"Cmd":["sh"],"Image":"d1592a710ac323612bd786fa8ac20727c58d8a67847e5a65177c594f43919498","Volumes":null,"WorkingDir":"","Entrypoint":null,"OnBuild":null,"Labels":null},"container":"349b014153779e30093d94f6df2a43c7a0a164e05aa207389917b540add39b51","container_config":{"Hostname":"23304fc829f9","Domainname":"","User":"","AttachStdin":false,"AttachStdout":false,"AttachStderr":false,"Tty":false,"OpenStdin":false,"StdinOnce":false,"Env":null,"Cmd":["/bin/sh","-c","#(nop) CMD [\"sh\"]"],"Image":"d1592a710ac323612bd786fa8ac20727c58d8a67847e5a65177c594f43919498","Volumes":null,"WorkingDir":"","Entrypoint":null,"OnBuild":null,"Labels":null},"created":"2015-10-31T22:22:55.613815829Z","docker_version":"1.8.2","layer_id":"sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4","os":"linux","parent_id":"sha256:039b63dd2cbaa10d6015ea574392530571ed8d7b174090f032211285a71881d0"}`, id1, "")
	if err != nil {
		t.Fatal(err)
	}

	ls := &mockRegistrar{}

	ifs, err := image.NewFSStoreBackend(filepath.Join(tmpdir, "imagedb"))
	if err != nil {
		t.Fatal(err)
	}

	is, err := image.NewImageStore(ifs, ls)
	if err != nil {
		t.Fatal(err)
	}

	ms, err := metadata.NewFSMetadataStore(filepath.Join(tmpdir, "distribution"))
	if err != nil {
		t.Fatal(err)
	}
	mappings := make(map[string]image.ID)

	err = migrateImages(tmpdir, ls, is, ms, mappings)
	if err != nil {
		t.Fatal(err)
	}

	expected := map[string]image.ID{
		id1: image.ID("sha256:ca406eaf9c26898414ff5b7b3a023c33310759d6203be0663dbf1b3a712f432d"),
		id2: image.ID("sha256:a488bec94bb96b26a968f913d25ef7d8d204d727ca328b52b4b059c7d03260b6"),
	}

	if !reflect.DeepEqual(mappings, expected) {
		t.Fatalf("invalid image mappings: expected %q, got %q", expected, mappings)
	}

	if actual, expected := ls.count, 2; actual != expected {
		t.Fatalf("invalid register count: expected %q, got %q", expected, actual)
	}
	ls.count = 0

	// next images are busybox from 1.8.2
	_, err = addImage(tmpdir, `{"id":"17583c7dd0dae6244203b8029733bdb7d17fccbb2b5d93e2b24cf48b8bfd06e2","parent":"d1592a710ac323612bd786fa8ac20727c58d8a67847e5a65177c594f43919498","created":"2015-10-31T22:22:55.613815829Z","container":"349b014153779e30093d94f6df2a43c7a0a164e05aa207389917b540add39b51","container_config":{"Hostname":"23304fc829f9","Domainname":"","User":"","AttachStdin":false,"AttachStdout":false,"AttachStderr":false,"ExposedPorts":null,"PublishService":"","Tty":false,"OpenStdin":false,"StdinOnce":false,"Env":null,"Cmd":["/bin/sh","-c","#(nop) CMD [\"sh\"]"],"Image":"d1592a710ac323612bd786fa8ac20727c58d8a67847e5a65177c594f43919498","Volumes":null,"VolumeDriver":"","WorkingDir":"","Entrypoint":null,"NetworkDisabled":false,"MacAddress":"","OnBuild":null,"Labels":null},"docker_version":"1.8.2","config":{"Hostname":"23304fc829f9","Domainname":"","User":"","AttachStdin":false,"AttachStdout":false,"AttachStderr":false,"ExposedPorts":null,"PublishService":"","Tty":false,"OpenStdin":false,"StdinOnce":false,"Env":null,"Cmd":["sh"],"Image":"d1592a710ac323612bd786fa8ac20727c58d8a67847e5a65177c594f43919498","Volumes":null,"VolumeDriver":"","WorkingDir":"","Entrypoint":null,"NetworkDisabled":false,"MacAddress":"","OnBuild":null,"Labels":null},"architecture":"amd64","os":"linux","Size":0}`, "", "sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4")
	if err != nil {
		t.Fatal(err)
	}

	_, err = addImage(tmpdir, `{"id":"d1592a710ac323612bd786fa8ac20727c58d8a67847e5a65177c594f43919498","created":"2015-10-31T22:22:54.690851953Z","container":"23304fc829f9b9349416f6eb1afec162907eba3a328f51d53a17f8986f865d65","container_config":{"Hostname":"23304fc829f9","Domainname":"","User":"","AttachStdin":false,"AttachStdout":false,"AttachStderr":false,"ExposedPorts":null,"PublishService":"","Tty":false,"OpenStdin":false,"StdinOnce":false,"Env":null,"Cmd":["/bin/sh","-c","#(nop) ADD file:a3bc1e842b69636f9df5256c49c5374fb4eef1e281fe3f282c65fb853ee171c5 in /"],"Image":"","Volumes":null,"VolumeDriver":"","WorkingDir":"","Entrypoint":null,"NetworkDisabled":false,"MacAddress":"","OnBuild":null,"Labels":null},"docker_version":"1.8.2","config":{"Hostname":"23304fc829f9","Domainname":"","User":"","AttachStdin":false,"AttachStdout":false,"AttachStderr":false,"ExposedPorts":null,"PublishService":"","Tty":false,"OpenStdin":false,"StdinOnce":false,"Env":null,"Cmd":null,"Image":"","Volumes":null,"VolumeDriver":"","WorkingDir":"","Entrypoint":null,"NetworkDisabled":false,"MacAddress":"","OnBuild":null,"Labels":null},"architecture":"amd64","os":"linux","Size":1108935}`, "", "sha256:55dc925c23d1ed82551fd018c27ac3ee731377b6bad3963a2a4e76e753d70e57")
	if err != nil {
		t.Fatal(err)
	}

	err = migrateImages(tmpdir, ls, is, ms, mappings)
	if err != nil {
		t.Fatal(err)
	}

	expected["d1592a710ac323612bd786fa8ac20727c58d8a67847e5a65177c594f43919498"] = image.ID("sha256:c091bb33854e57e6902b74c08719856d30b5593c7db6143b2b48376b8a588395")
	expected["17583c7dd0dae6244203b8029733bdb7d17fccbb2b5d93e2b24cf48b8bfd06e2"] = image.ID("sha256:d963020e755ff2715b936065949472c1f8a6300144b922992a1a421999e71f07")

	if actual, expected := ls.count, 2; actual != expected {
		t.Fatalf("invalid register count: expected %q, got %q", expected, actual)
	}

	v2MetadataService := metadata.NewV2MetadataService(ms)
	receivedMetadata, err := v2MetadataService.GetMetadata(layer.EmptyLayer.DiffID())
	if err != nil {
		t.Fatal(err)
	}

	expectedMetadata := []metadata.V2Metadata{
		{Digest: digest.Digest("sha256:55dc925c23d1ed82551fd018c27ac3ee731377b6bad3963a2a4e76e753d70e57")},
		{Digest: digest.Digest("sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4")},
	}

	if !reflect.DeepEqual(expectedMetadata, receivedMetadata) {
		t.Fatalf("invalid metadata: expected %q, got %q", expectedMetadata, receivedMetadata)
	}

//.........这里部分代码省略.........
开发者ID:msabansal，项目名称:docker，代码行数:101，代码来源:migratev1_test.go


注：本文中的github.com/docker/docker/distribution/metadata.NewV2MetadataService函数示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。