Golang utils.Download函數代碼示例

本文整理匯總了Golang中github.com/dotcloud/docker/utils.Download函數的典型用法代碼示例。如果您正苦於以下問題：Golang Download函數的具體用法？Golang Download怎麽用？Golang Download使用的例子？那麽, 這裏精選的函數代碼示例或許可以為您提供幫助。

在下文中一共展示了Download函數的13個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: ImageInsert

func (srv *Server) ImageInsert(name, url, path string, out io.Writer, sf *utils.StreamFormatter) (string, error) {
	out = utils.NewWriteFlusher(out)
	img, err := srv.runtime.repositories.LookupImage(name)
	if err != nil {
		return "", err
	}

	file, err := utils.Download(url, out)
	if err != nil {
		return "", err
	}
	defer file.Body.Close()

	config, _, _, err := ParseRun([]string{img.ID, "echo", "insert", url, path}, srv.runtime.capabilities)
	if err != nil {
		return "", err
	}

	b := NewBuilder(srv.runtime)
	c, err := b.Create(config)
	if err != nil {
		return "", err
	}

	if err := c.Inject(utils.ProgressReader(file.Body, int(file.ContentLength), out, sf.FormatProgress("Downloading", "%v/%v (%v)"), sf), path); err != nil {
		return "", err
	}
	// FIXME: Handle custom repo, tag comment, author
	img, err = b.Commit(c, "", "", img.Comment, img.Author, nil)
	if err != nil {
		return "", err
	}
	out.Write(sf.FormatStatus(img.ID))
	return img.ShortID(), nil
}

開發者ID:sjbalaji，項目名稱:docker，代碼行數:35，代碼來源:server.go

示例2: addRemote

func (b *buildFile) addRemote(container *Container, orig, dest string) error {
	file, err := utils.Download(orig, ioutil.Discard)
	if err != nil {
		return err
	}
	defer file.Body.Close()

	// If the destination is a directory, figure out the filename.
	if strings.HasSuffix(dest, "/") {
		u, err := url.Parse(orig)
		if err != nil {
			return err
		}
		path := u.Path
		if strings.HasSuffix(path, "/") {
			path = path[:len(path)-1]
		}
		parts := strings.Split(path, "/")
		filename := parts[len(parts)-1]
		if filename == "" {
			return fmt.Errorf("cannot determine filename from url: %s", u)
		}
		dest = dest + filename
	}

	return container.Inject(file.Body, dest)
}

開發者ID:nathankleyn，項目名稱:docker，代碼行數:27，代碼來源:buildfile.go

示例3: CmdInsert

func (b *buildFile) CmdInsert(args string) error {
	if b.image == "" {
		return fmt.Errorf("Please provide a source image with `from` prior to insert")
	}
	tmp := strings.SplitN(args, " ", 2)
	if len(tmp) != 2 {
		return fmt.Errorf("Invalid INSERT format")
	}
	sourceUrl := strings.Trim(tmp[0], " ")
	destPath := strings.Trim(tmp[1], " ")

	file, err := utils.Download(sourceUrl, b.out)
	if err != nil {
		return err
	}
	defer file.Body.Close()

	b.config.Cmd = []string{"echo", "INSERT", sourceUrl, "in", destPath}
	cid, err := b.run()
	if err != nil {
		return err
	}

	container := b.runtime.Get(cid)
	if container == nil {
		return fmt.Errorf("An error occured while creating the container")
	}

	if err := container.Inject(file.Body, destPath); err != nil {
		return err
	}

	return b.commit(cid)
}

開發者ID:renato-zannon，項目名稱:docker，代碼行數:34，代碼來源:buildfile.go

示例4: ImageInsert

func (srv *Server) ImageInsert(name, url, path string, out io.Writer) error {
	out = utils.NewWriteFlusher(out)
	img, err := srv.runtime.repositories.LookupImage(name)
	if err != nil {
		return err
	}

	file, err := utils.Download(url, out)
	if err != nil {
		return err
	}
	defer file.Body.Close()

	config, _, err := ParseRun([]string{img.Id, "echo", "insert", url, path}, srv.runtime.capabilities)
	if err != nil {
		return err
	}

	b := NewBuilder(srv.runtime)
	c, err := b.Create(config)
	if err != nil {
		return err
	}

	if err := c.Inject(utils.ProgressReader(file.Body, int(file.ContentLength), out, "Downloading %v/%v (%v)\r", false), path); err != nil {
		return err
	}
	// FIXME: Handle custom repo, tag comment, author
	img, err = b.Commit(c, "", "", img.Comment, img.Author, nil)
	if err != nil {
		return err
	}
	fmt.Fprintf(out, "%s\n", img.Id)
	return nil
}

開發者ID:richardjoo，項目名稱:docker，代碼行數:35，代碼來源:server.go

示例5: addRemote

func (b *buildFile) addRemote(container *Container, orig, dest string) error {
	file, err := utils.Download(orig, ioutil.Discard)
	if err != nil {
		return err
	}
	defer file.Body.Close()

	return container.Inject(file.Body, dest)
}

開發者ID:jkingyens，項目名稱:docker，代碼行數:9，代碼來源:buildfile.go

示例6: ImageImport

func (srv *Server) ImageImport(src, repo, tag string, in io.Reader, out io.Writer, sf *utils.StreamFormatter) error {
	var archive io.Reader
	var resp *http.Response

	if src == "-" {
		archive = in
	} else {
		u, err := url.Parse(src)
		if err != nil {
			return err
		}
		if u.Scheme == "" {
			u.Scheme = "http"
			u.Host = src
			u.Path = ""
		}
		out.Write(sf.FormatStatus("Downloading from %s", u))
		// Download with curl (pretty progress bar)
		// If curl is not available, fallback to http.Get()
		resp, err = utils.Download(u.String(), out)
		if err != nil {
			return err
		}
		archive = utils.ProgressReader(resp.Body, int(resp.ContentLength), out, sf.FormatProgress("Importing", "%v/%v (%v)"), sf)
	}
	img, err := srv.runtime.graph.Create(archive, nil, "Imported from "+src, "", nil)
	if err != nil {
		return err
	}
	// Optionally register the image at REPO/TAG
	if repo != "" {
		if err := srv.runtime.repositories.Set(repo, tag, img.ID, true); err != nil {
			return err
		}
	}
	out.Write(sf.FormatStatus(img.ShortID()))
	return nil
}

開發者ID:sjbalaji，項目名稱:docker，代碼行數:38，代碼來源:server.go

示例7: postBuild

func postBuild(srv *Server, version float64, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
	if version < 1.3 {
		return fmt.Errorf("Multipart upload for build is no longer supported. Please upgrade your docker client.")
	}
	remoteURL := r.FormValue("remote")
	repoName := r.FormValue("t")
	rawSuppressOutput := r.FormValue("q")
	rawNoCache := r.FormValue("nocache")
	rawRm := r.FormValue("rm")
	repoName, tag := utils.ParseRepositoryTag(repoName)

	var context io.Reader

	if remoteURL == "" {
		context = r.Body
	} else if utils.IsGIT(remoteURL) {
		if !strings.HasPrefix(remoteURL, "git://") {
			remoteURL = "https://" + remoteURL
		}
		root, err := ioutil.TempDir("", "docker-build-git")
		if err != nil {
			return err
		}
		defer os.RemoveAll(root)

		if output, err := exec.Command("git", "clone", remoteURL, root).CombinedOutput(); err != nil {
			return fmt.Errorf("Error trying to use git: %s (%s)", err, output)
		}

		c, err := archive.Tar(root, archive.Bzip2)
		if err != nil {
			return err
		}
		context = c
	} else if utils.IsURL(remoteURL) {
		f, err := utils.Download(remoteURL, ioutil.Discard)
		if err != nil {
			return err
		}
		defer f.Body.Close()
		dockerFile, err := ioutil.ReadAll(f.Body)
		if err != nil {
			return err
		}
		c, err := MkBuildContext(string(dockerFile), nil)
		if err != nil {
			return err
		}
		context = c
	}

	suppressOutput, err := getBoolParam(rawSuppressOutput)
	if err != nil {
		return err
	}
	noCache, err := getBoolParam(rawNoCache)
	if err != nil {
		return err
	}
	rm, err := getBoolParam(rawRm)
	if err != nil {
		return err
	}

	b := NewBuildFile(srv, utils.NewWriteFlusher(w), !suppressOutput, !noCache, rm)
	id, err := b.Build(context)
	if err != nil {
		return fmt.Errorf("Error build: %s", err)
	}
	if repoName != "" {
		srv.runtime.repositories.Set(repoName, tag, id, false)
	}
	return nil
}

開發者ID:juniorz，項目名稱:docker，代碼行數:74，代碼來源:api.go

示例8: CmdAdd

func (b *buildFile) CmdAdd(args string) error {
	if b.context == nil {
		return fmt.Errorf("No context given. Impossible to use ADD")
	}
	tmp := strings.SplitN(args, " ", 2)
	if len(tmp) != 2 {
		return fmt.Errorf("Invalid ADD format")
	}

	orig, err := b.ReplaceEnvMatches(strings.Trim(tmp[0], " \t"))
	if err != nil {
		return err
	}

	dest, err := b.ReplaceEnvMatches(strings.Trim(tmp[1], " \t"))
	if err != nil {
		return err
	}

	cmd := b.config.Cmd
	b.config.Cmd = []string{"/bin/sh", "-c", fmt.Sprintf("#(nop) ADD %s in %s", orig, dest)}
	b.config.Image = b.image

	var (
		origPath   = orig
		destPath   = dest
		remoteHash string
		isRemote   bool
	)

	if utils.IsURL(orig) {
		// Initiate the download
		isRemote = true
		resp, err := utils.Download(orig)
		if err != nil {
			return err
		}

		// Create a tmp dir
		tmpDirName, err := ioutil.TempDir(b.contextPath, "docker-remote")
		if err != nil {
			return err
		}

		// Create a tmp file within our tmp dir
		tmpFileName := path.Join(tmpDirName, "tmp")
		tmpFile, err := os.OpenFile(tmpFileName, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0600)
		if err != nil {
			return err
		}
		defer os.RemoveAll(tmpDirName)

		// Download and dump result to tmp file
		if _, err := io.Copy(tmpFile, resp.Body); err != nil {
			tmpFile.Close()
			return err
		}
		tmpFile.Close()

		origPath = path.Join(filepath.Base(tmpDirName), filepath.Base(tmpFileName))

		// Process the checksum
		r, err := archive.Tar(tmpFileName, archive.Uncompressed)
		if err != nil {
			return err
		}
		tarSum := utils.TarSum{Reader: r, DisableCompression: true}
		remoteHash = tarSum.Sum(nil)
		r.Close()

		// If the destination is a directory, figure out the filename.
		if strings.HasSuffix(dest, "/") {
			u, err := url.Parse(orig)
			if err != nil {
				return err
			}
			path := u.Path
			if strings.HasSuffix(path, "/") {
				path = path[:len(path)-1]
			}
			parts := strings.Split(path, "/")
			filename := parts[len(parts)-1]
			if filename == "" {
				return fmt.Errorf("cannot determine filename from url: %s", u)
			}
			destPath = dest + filename
		}
	}

	if err := b.checkPathForAddition(origPath); err != nil {
		return err
	}

	// Hash path and check the cache
	if b.utilizeCache {
		var (
			hash string
			sums = b.context.GetSums()
		)

//.........這裏部分代碼省略.........

開發者ID:hughdbrown，項目名稱:docker，代碼行數:101，代碼來源:buildfile.go

示例9: postBuild

func postBuild(srv *Server, version float64, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
	if version < 1.3 {
		return fmt.Errorf("Multipart upload for build is no longer supported. Please upgrade your docker client.")
	}
	remoteURL := r.FormValue("remote")
	repoName := r.FormValue("t")
	tag := ""
	if strings.Contains(repoName, ":") {
		remoteParts := strings.Split(repoName, ":")
		tag = remoteParts[1]
		repoName = remoteParts[0]
	}

	var context io.Reader

	if remoteURL == "" {
		context = r.Body
	} else if utils.IsGIT(remoteURL) {
		if !strings.HasPrefix(remoteURL, "git://") {
			remoteURL = "https://" + remoteURL
		}
		root, err := ioutil.TempDir("", "docker-build-git")
		if err != nil {
			return err
		}
		defer os.RemoveAll(root)

		if output, err := exec.Command("git", "clone", remoteURL, root).CombinedOutput(); err != nil {
			return fmt.Errorf("Error trying to use git: %s (%s)", err, output)
		}

		c, err := Tar(root, Bzip2)
		if err != nil {
			return err
		}
		context = c
	} else if utils.IsURL(remoteURL) {
		f, err := utils.Download(remoteURL, ioutil.Discard)
		if err != nil {
			return err
		}
		defer f.Body.Close()
		dockerFile, err := ioutil.ReadAll(f.Body)
		if err != nil {
			return err
		}
		c, err := mkBuildContext(string(dockerFile), nil)
		if err != nil {
			return err
		}
		context = c
	}
	b := NewBuildFile(srv, utils.NewWriteFlusher(w))
	id, err := b.Build(context)
	if err != nil {
		fmt.Fprintf(w, "Error build: %s\n", err)
		return err
	}
	if repoName != "" {
		srv.runtime.repositories.Set(repoName, tag, id, false)
	}
	return nil
}

開發者ID:nickstenning，項目名稱:docker，代碼行數:63，代碼來源:api.go

示例10: postBuild

func postBuild(srv *Server, version float64, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
	if version < 1.3 {
		return fmt.Errorf("Multipart upload for build is no longer supported. Please upgrade your docker client.")
	}
	var (
		remoteURL         = r.FormValue("remote")
		repoName          = r.FormValue("t")
		rawSuppressOutput = r.FormValue("q")
		rawNoCache        = r.FormValue("nocache")
		rawRm             = r.FormValue("rm")
		authEncoded       = r.Header.Get("X-Registry-Auth")
		authConfig        = &auth.AuthConfig{}
		configFileEncoded = r.Header.Get("X-Registry-Config")
		configFile        = &auth.ConfigFile{}
		tag               string
	)
	repoName, tag = utils.ParseRepositoryTag(repoName)

	// This block can be removed when API versions prior to 1.9 are deprecated.
	// Both headers will be parsed and sent along to the daemon, but if a non-empty
	// ConfigFile is present, any value provided as an AuthConfig directly will
	// be overridden. See BuildFile::CmdFrom for details.
	if version < 1.9 && authEncoded != "" {
		authJson := base64.NewDecoder(base64.URLEncoding, strings.NewReader(authEncoded))
		if err := json.NewDecoder(authJson).Decode(authConfig); err != nil {
			// for a pull it is not an error if no auth was given
			// to increase compatibility with the existing api it is defaulting to be empty
			authConfig = &auth.AuthConfig{}
		}
	}

	if configFileEncoded != "" {
		configFileJson := base64.NewDecoder(base64.URLEncoding, strings.NewReader(configFileEncoded))
		if err := json.NewDecoder(configFileJson).Decode(configFile); err != nil {
			// for a pull it is not an error if no auth was given
			// to increase compatibility with the existing api it is defaulting to be empty
			configFile = &auth.ConfigFile{}
		}
	}

	var context io.Reader

	if remoteURL == "" {
		context = r.Body
	} else if utils.IsGIT(remoteURL) {
		if !strings.HasPrefix(remoteURL, "git://") {
			remoteURL = "https://" + remoteURL
		}
		root, err := ioutil.TempDir("", "docker-build-git")
		if err != nil {
			return err
		}
		defer os.RemoveAll(root)

		if output, err := exec.Command("git", "clone", remoteURL, root).CombinedOutput(); err != nil {
			return fmt.Errorf("Error trying to use git: %s (%s)", err, output)
		}

		c, err := archive.Tar(root, archive.Uncompressed)
		if err != nil {
			return err
		}
		context = c
	} else if utils.IsURL(remoteURL) {
		f, err := utils.Download(remoteURL)
		if err != nil {
			return err
		}
		defer f.Body.Close()
		dockerFile, err := ioutil.ReadAll(f.Body)
		if err != nil {
			return err
		}
		c, err := MkBuildContext(string(dockerFile), nil)
		if err != nil {
			return err
		}
		context = c
	}

	suppressOutput, err := getBoolParam(rawSuppressOutput)
	if err != nil {
		return err
	}
	noCache, err := getBoolParam(rawNoCache)
	if err != nil {
		return err
	}
	rm, err := getBoolParam(rawRm)
	if err != nil {
		return err
	}

	if version >= 1.8 {
		w.Header().Set("Content-Type", "application/json")
	}
	sf := utils.NewStreamFormatter(version >= 1.8)
	b := NewBuildFile(srv,
		&StdoutFormater{
			Writer:          utils.NewWriteFlusher(w),
//.........這裏部分代碼省略.........

開發者ID:krast，項目名稱:docker，代碼行數:101，代碼來源:api.go

示例11: CmdAdd

func (b *buildFile) CmdAdd(args string) error {
	if b.context == "" {
		return fmt.Errorf("No context given. Impossible to use ADD")
	}
	tmp := strings.SplitN(args, " ", 2)
	if len(tmp) != 2 {
		return fmt.Errorf("Invalid ADD format")
	}

	orig, err := b.ReplaceEnvMatches(strings.Trim(tmp[0], " \t"))
	if err != nil {
		return err
	}

	dest, err := b.ReplaceEnvMatches(strings.Trim(tmp[1], " \t"))
	if err != nil {
		return err
	}

	cmd := b.config.Cmd
	b.config.Cmd = []string{"/bin/sh", "-c", fmt.Sprintf("#(nop) ADD %s in %s", orig, dest)}

	b.config.Image = b.image

	origPath := orig
	destPath := dest
	clobberTimes := false

	if utils.IsURL(orig) {

		clobberTimes = true

		resp, err := utils.Download(orig)
		if err != nil {
			return err
		}
		tmpDirName, err := ioutil.TempDir(b.context, "docker-remote")
		if err != nil {
			return err
		}
		tmpFileName := path.Join(tmpDirName, "tmp")
		tmpFile, err := os.OpenFile(tmpFileName, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0600)
		if err != nil {
			return err
		}
		defer os.RemoveAll(tmpDirName)
		if _, err = io.Copy(tmpFile, resp.Body); err != nil {
			return err
		}
		origPath = path.Join(filepath.Base(tmpDirName), filepath.Base(tmpFileName))
		tmpFile.Close()

		// If the destination is a directory, figure out the filename.
		if strings.HasSuffix(dest, "/") {
			u, err := url.Parse(orig)
			if err != nil {
				return err
			}
			path := u.Path
			if strings.HasSuffix(path, "/") {
				path = path[:len(path)-1]
			}
			parts := strings.Split(path, "/")
			filename := parts[len(parts)-1]
			if filename == "" {
				return fmt.Errorf("cannot determine filename from url: %s", u)
			}
			destPath = dest + filename
		}
	}

	if err := b.checkPathForAddition(origPath); err != nil {
		return err
	}

	// Hash path and check the cache
	if b.utilizeCache {
		hash, err := b.hashPath(b.context, origPath, clobberTimes)
		if err != nil {
			return err
		}
		b.config.Cmd = []string{"/bin/sh", "-c", fmt.Sprintf("#(nop) ADD %s in %s", hash, dest)}
		hit, err := b.probeCache()
		if err != nil {
			return err
		}
		if hit {
			return nil
		}
	}

	// Create the container and start it
	container, _, err := b.runtime.Create(b.config, "")
	if err != nil {
		return err
	}
	b.tmpContainers[container.ID] = struct{}{}

	if err := container.EnsureMounted(); err != nil {
		return err
//.........這裏部分代碼省略.........

開發者ID:Grunny，項目名稱:docker，代碼行數:101，代碼來源:buildfile.go

示例12: CmdAdd

func (b *buildFile) CmdAdd(args string) error {
	if b.context == nil {
		return fmt.Errorf("No context given. Impossible to use ADD")
	}
	tmp := strings.SplitN(args, " ", 2)
	if len(tmp) != 2 {
		return fmt.Errorf("Invalid ADD format")
	}

	orig, err := b.ReplaceEnvMatches(strings.Trim(tmp[0], " \t"))
	if err != nil {
		return err
	}

	dest, err := b.ReplaceEnvMatches(strings.Trim(tmp[1], " \t"))
	if err != nil {
		return err
	}

	cmd := b.config.Cmd
	b.config.Cmd = []string{"/bin/sh", "-c", fmt.Sprintf("#(nop) ADD %s in %s", orig, dest)}
	b.config.Image = b.image

	// FIXME: do we really need this?
	var (
		origPath = orig
		destPath = dest
	)

	if utils.IsURL(orig) {
		resp, err := utils.Download(orig)
		if err != nil {
			return err
		}
		tmpDirName, err := ioutil.TempDir(b.contextPath, "docker-remote")
		if err != nil {
			return err
		}
		tmpFileName := path.Join(tmpDirName, "tmp")
		tmpFile, err := os.OpenFile(tmpFileName, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0600)
		if err != nil {
			return err
		}
		defer os.RemoveAll(tmpDirName)
		if _, err = io.Copy(tmpFile, resp.Body); err != nil {
			return err
		}
		origPath = path.Join(filepath.Base(tmpDirName), filepath.Base(tmpFileName))
		tmpFile.Close()

		// If the destination is a directory, figure out the filename.
		if strings.HasSuffix(dest, "/") {
			u, err := url.Parse(orig)
			if err != nil {
				return err
			}
			path := u.Path
			if strings.HasSuffix(path, "/") {
				path = path[:len(path)-1]
			}
			parts := strings.Split(path, "/")
			filename := parts[len(parts)-1]
			if filename == "" {
				return fmt.Errorf("cannot determine filename from url: %s", u)
			}
			destPath = dest + filename
		}
	}

	if err := b.checkPathForAddition(origPath); err != nil {
		return err
	}

	// Hash path and check the cache
	if b.utilizeCache {
		var (
			hash string
			sums = b.context.GetSums()
		)
		if fi, err := os.Stat(path.Join(b.contextPath, origPath)); err != nil {
			return err
		} else if fi.IsDir() {
			var subfiles []string
			for file, sum := range sums {
				if strings.HasPrefix(file, origPath) {
					subfiles = append(subfiles, sum)
				}
			}
			sort.Strings(subfiles)
			hasher := sha256.New()
			hasher.Write([]byte(strings.Join(subfiles, ",")))
			hash = "dir:" + hex.EncodeToString(hasher.Sum(nil))
		} else {
			hash = "file:" + sums[origPath]
		}
		b.config.Cmd = []string{"/bin/sh", "-c", fmt.Sprintf("#(nop) ADD %s in %s", hash, dest)}
		hit, err := b.probeCache()
		if err != nil {
			return err
		}
//.........這裏部分代碼省略.........

開發者ID:rhormaza，項目名稱:docker，代碼行數:101，代碼來源:buildfile.go

示例13: Build


//.........這裏部分代碼省略.........

			fmt.Fprintf(stdout, "===> %s\n", base.ShortId())
			image = base
			break
		case "expose":
			ports := strings.Split(arguments, " ")

			fmt.Fprintf(stdout, "EXPOSE %v\n", ports)
			if image == nil {
				return nil, fmt.Errorf("Please provide a source image with `from` prior to copy")
			}

			// Create the container and start it
			c, err := builder.Create(&Config{Image: image.Id, Cmd: []string{"", ""}})
			if err != nil {
				return nil, err
			}
			if err := c.Start(); err != nil {
				return nil, err
			}
			tmpContainers[c.Id] = struct{}{}

			config.PortSpecs = append(ports, config.PortSpecs...)

			// Commit the container
			base, err = builder.Commit(c, "", "", "", maintainer, config)
			if err != nil {
				return nil, err
			}
			tmpImages[base.Id] = struct{}{}

			fmt.Fprintf(stdout, "===> %s\n", base.ShortId())
			image = base
			break
		case "insert":
			if image == nil {
				return nil, fmt.Errorf("Please provide a source image with `from` prior to copy")
			}
			tmp = strings.SplitN(arguments, " ", 2)
			if len(tmp) != 2 {
				return nil, fmt.Errorf("Invalid INSERT format")
			}
			sourceUrl := strings.Trim(tmp[0], " ")
			destPath := strings.Trim(tmp[1], " ")
			fmt.Fprintf(stdout, "COPY %s to %s in %s\n", sourceUrl, destPath, base.ShortId())

			file, err := utils.Download(sourceUrl, stdout)
			if err != nil {
				return nil, err
			}
			defer file.Body.Close()

			config, _, err := ParseRun([]string{base.Id, "echo", "insert", sourceUrl, destPath}, builder.runtime.capabilities)
			if err != nil {
				return nil, err
			}
			c, err := builder.Create(config)
			if err != nil {
				return nil, err
			}

			if err := c.Start(); err != nil {
				return nil, err
			}

			// Wait for echo to finish
			if result := c.Wait(); result != 0 {
				return nil, fmt.Errorf("!!! '%s' return non-zero exit code '%d'. Aborting.", arguments, result)
			}

			if err := c.Inject(file.Body, destPath); err != nil {
				return nil, err
			}

			base, err = builder.Commit(c, "", "", "", maintainer, nil)
			if err != nil {
				return nil, err
			}
			fmt.Fprintf(stdout, "===> %s\n", base.ShortId())

			image = base

			break
		default:
			fmt.Fprintf(stdout, "Skipping unknown instruction %s\n", strings.ToUpper(instruction))
		}
	}
	if image != nil {
		// The build is successful, keep the temporary containers and images
		for i := range tmpImages {
			delete(tmpImages, i)
		}
		for i := range tmpContainers {
			delete(tmpContainers, i)
		}
		fmt.Fprintf(stdout, "Build finished. image id: %s\n", image.ShortId())
		return image, nil
	}
	return nil, fmt.Errorf("An error occured during the build\n")
}

開發者ID:JioCloud，項目名稱:docker，代碼行數:101，代碼來源:builder.go

注：本文中的github.com/dotcloud/docker/utils.Download函數示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。