Golang Store.Get方法代码示例

本文整理汇总了Golang中github.com/docker/docker/image.Store.Get方法的典型用法代码示例。如果您正苦于以下问题：Golang Store.Get方法的具体用法？Golang Store.Get怎么用？Golang Store.Get使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类github.com/docker/docker/image.Store的用法示例。

在下文中一共展示了Store.Get方法的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: migrateContainers

func migrateContainers(root string, ls graphIDMounter, is image.Store, imageMappings map[string]image.ID) error {
	containersDir := filepath.Join(root, containersDirName)
	dir, err := ioutil.ReadDir(containersDir)
	if err != nil {
		return err
	}
	for _, v := range dir {
		id := v.Name()

		if _, err := os.Stat(filepath.Join(containersDir, id, configFileName)); err == nil {
			continue
		}

		containerJSON, err := ioutil.ReadFile(filepath.Join(containersDir, id, configFileNameLegacy))
		if err != nil {
			logrus.Errorf("migrate container error: %v", err)
			continue
		}

		var c map[string]*json.RawMessage
		if err := json.Unmarshal(containerJSON, &c); err != nil {
			logrus.Errorf("migrate container error: %v", err)
			continue
		}

		imageStrJSON, ok := c["Image"]
		if !ok {
			return fmt.Errorf("invalid container configuration for %v", id)
		}

		var image string
		if err := json.Unmarshal([]byte(*imageStrJSON), &image); err != nil {
			logrus.Errorf("migrate container error: %v", err)
			continue
		}

		imageID, ok := imageMappings[image]
		if !ok {
			logrus.Errorf("image not migrated %v", imageID) // non-fatal error
			continue
		}

		c["Image"] = rawJSON(imageID)

		containerJSON, err = json.Marshal(c)
		if err != nil {
			return err
		}

		if err := ioutil.WriteFile(filepath.Join(containersDir, id, configFileName), containerJSON, 0600); err != nil {
			return err
		}

		img, err := is.Get(imageID)
		if err != nil {
			return err
		}

		if err := ls.CreateRWLayerByGraphID(id, id, img.RootFS.ChainID()); err != nil {
			logrus.Errorf("migrate container error: %v", err)
			continue
		}

		logrus.Infof("migrated container %s to point to %s", id, imageID)

	}
	return nil
}

开发者ID:docker，项目名称:v1.10-migrator，代码行数:68，代码来源:migratev1.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: 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)
		}
	}()

	jsonFile := filepath.Join(root, graphDirName, id, "json")
	imageJSON, err := ioutil.ReadFile(jsonFile)
	if err != nil {
		return err
	}
	var parent struct {
		Parent   string
		ParentID digest.Digest `json:"parent_id"`
	}
	if err := json.Unmarshal(imageJSON, &parent); err != nil {
		return err
	}
	if parent.Parent == "" && parent.ParentID != "" { // v1.9
		parent.Parent = parent.ParentID.Hex()
	}
	// compatibilityID for parent
	parentCompatibilityID, err := ioutil.ReadFile(filepath.Join(root, graphDirName, id, "parent"))
	if err == nil && len(parentCompatibilityID) > 0 {
		parent.Parent = string(parentCompatibilityID)
	}

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

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

	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 {
			blobSumService := metadata.NewBlobSumService(ms)
			blobSumService.Add(layer.DiffID(), dgst)
		}
	}
	_, err = ls.Release(layer)
	if err != nil {
		return err
	}

	mappings[id] = strongID
	return
}

开发者ID:nickschuch，项目名称:kube-haproxy，代码行数:99，代码来源:migratev1.go

注：本文中的github.com/docker/docker/image.Store.Get方法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。