Exemple #1
0
// Creates an image from Pull or from Import
func postImagesCreate(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
	if err := parseForm(r); err != nil {
		return err
	}

	var (
		image = r.Form.Get("fromImage")
		repo  = r.Form.Get("repo")
		tag   = r.Form.Get("tag")
		job   *engine.Job
	)
	authEncoded := r.Header.Get("X-Registry-Auth")
	authConfig := &registry.AuthConfig{}
	if 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 = &registry.AuthConfig{}
		}
	}
	if image != "" { //pull
		if tag == "" {
			image, tag = parsers.ParseRepositoryTag(image)
		}
		metaHeaders := map[string][]string{}
		for k, v := range r.Header {
			if strings.HasPrefix(k, "X-Meta-") {
				metaHeaders[k] = v
			}
		}
		job = eng.Job("pull", image, tag)
		job.SetenvBool("parallel", version.GreaterThan("1.3"))
		job.SetenvJson("metaHeaders", metaHeaders)
		job.SetenvJson("authConfig", authConfig)
	} else { //import
		if tag == "" {
			repo, tag = parsers.ParseRepositoryTag(repo)
		}
		job = eng.Job("import", r.Form.Get("fromSrc"), repo, tag)
		job.Stdin.Add(r.Body)
	}

	if version.GreaterThan("1.0") {
		job.SetenvBool("json", true)
		streamJSON(job, w, true)
	} else {
		job.Stdout.Add(utils.NewWriteFlusher(w))
	}
	if err := job.Run(); err != nil {
		if !job.Stdout.Used() {
			return err
		}
		sf := utils.NewStreamFormatter(version.GreaterThan("1.0"))
		w.Write(sf.FormatError(err))
	}

	return nil
}
Exemple #2
0
func getImagesJSON(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
	if err := parseForm(r); err != nil {
		return err
	}

	var (
		err  error
		outs *engine.Table
		job  = eng.Job("images")
	)

	job.Setenv("filters", r.Form.Get("filters"))
	// FIXME this parameter could just be a match filter
	job.Setenv("filter", r.Form.Get("filter"))
	job.Setenv("all", r.Form.Get("all"))

	if version.GreaterThanOrEqualTo("1.7") {
		streamJSON(job, w, false)
	} else if outs, err = job.Stdout.AddListTable(); err != nil {
		return err
	}

	if err := job.Run(); err != nil {
		return err
	}

	if version.LessThan("1.7") && outs != nil { // Convert to legacy format
		outsLegacy := engine.NewTable("Created", 0)
		for _, out := range outs.Data {
			for _, repoTag := range out.GetList("RepoTags") {
				repo, tag := parsers.ParseRepositoryTag(repoTag)
				outLegacy := &engine.Env{}
				outLegacy.Set("Repository", repo)
				outLegacy.SetJson("Tag", tag)
				outLegacy.Set("Id", out.Get("Id"))
				outLegacy.SetInt64("Created", out.GetInt64("Created"))
				outLegacy.SetInt64("Size", out.GetInt64("Size"))
				outLegacy.SetInt64("VirtualSize", out.GetInt64("VirtualSize"))
				outsLegacy.Add(outLegacy)
			}
		}
		w.Header().Set("Content-Type", "application/json")
		if _, err := outsLegacy.WriteListTo(w); err != nil {
			return err
		}
	}
	return nil
}
Exemple #3
0
// CmdTag assigns a new name and tag to an existing image. If the tag already exists,
// it is changed and the image previously referenced by the tag loses that reference.
// This may cause the old image to be garbage-collected if its reference count reaches zero.
//
// Syntax: image_tag NEWNAME OLDNAME
// Example: image_tag shykes/myapp:latest shykes/myapp:1.42.0
func (s *TagStore) CmdTag(job *engine.Job) engine.Status {
	if len(job.Args) != 2 {
		return job.Errorf("usage: %s NEWNAME OLDNAME", job.Name)
	}
	var (
		newName = job.Args[0]
		oldName = job.Args[1]
	)
	newRepo, newTag := parsers.ParseRepositoryTag(newName)
	// FIXME: Set should either parse both old and new name, or neither.
	// 	the current prototype is inconsistent.
	if err := s.Set(newRepo, newTag, oldName, true); err != nil {
		return job.Error(err)
	}
	return engine.StatusOK
}
Exemple #4
0
func (daemon *Daemon) ContainerCreate(job *engine.Job) engine.Status {
	var name string
	if len(job.Args) == 1 {
		name = job.Args[0]
	} else if len(job.Args) > 1 {
		return job.Errorf("Usage: %s", job.Name)
	}
	config := runconfig.ContainerConfigFromJob(job)
	if config.Memory != 0 && config.Memory < 524288 {
		return job.Errorf("Minimum memory limit allowed is 512k")
	}
	if config.Memory > 0 && !daemon.SystemConfig().MemoryLimit {
		job.Errorf("Your kernel does not support memory limit capabilities. Limitation discarded.\n")
		config.Memory = 0
	}
	if config.Memory > 0 && !daemon.SystemConfig().SwapLimit {
		job.Errorf("Your kernel does not support swap limit capabilities. Limitation discarded.\n")
		config.MemorySwap = -1
	}
	container, buildWarnings, err := daemon.Create(config, name)
	if err != nil {
		if daemon.Graph().IsNotExist(err) {
			_, tag := parsers.ParseRepositoryTag(config.Image)
			if tag == "" {
				tag = graph.DEFAULTTAG
			}
			return job.Errorf("No such image: %s (tag: %s)", config.Image, tag)
		}
		return job.Error(err)
	}
	if !container.Config.NetworkDisabled && daemon.SystemConfig().IPv4ForwardingDisabled {
		job.Errorf("IPv4 forwarding is disabled.\n")
	}
	container.LogEvent("create")
	// FIXME: this is necessary because daemon.Create might return a nil container
	// with a non-nil error. This should not happen! Once it's fixed we
	// can remove this workaround.
	if container != nil {
		job.Printf("%s\n", container.ID)
	}
	for _, warning := range buildWarnings {
		job.Errorf("%s\n", warning)
	}
	return engine.StatusOK
}
Exemple #5
0
func (store *TagStore) LookupImage(name string) (*image.Image, error) {
	// FIXME: standardize on returning nil when the image doesn't exist, and err for everything else
	// (so we can pass all errors here)
	repos, tag := parsers.ParseRepositoryTag(name)
	if tag == "" {
		tag = DEFAULTTAG
	}
	img, err := store.GetImage(repos, tag)
	store.Lock()
	defer store.Unlock()
	if err != nil {
		return nil, err
	} else if img == nil {
		if img, err = store.graph.Get(name); err != nil {
			return nil, err
		}
	}
	return img, nil
}
Exemple #6
0
// CmdImageExport exports all images with the given tag. All versions
// containing the same tag are exported. The resulting output is an
// uncompressed tar ball.
// name is the set of tags to export.
// out is the writer where the images are written to.
func (s *TagStore) CmdImageExport(job *engine.Job) engine.Status {
	if len(job.Args) != 1 {
		return job.Errorf("Usage: %s IMAGE\n", job.Name)
	}
	name := job.Args[0]
	// get image json
	tempdir, err := ioutil.TempDir("", "docker-export-")
	if err != nil {
		return job.Error(err)
	}
	defer os.RemoveAll(tempdir)

	log.Debugf("Serializing %s", name)

	rootRepoMap := map[string]Repository{}
	rootRepo, err := s.Get(name)
	if err != nil {
		return job.Error(err)
	}
	if rootRepo != nil {
		// this is a base repo name, like 'busybox'

		for _, id := range rootRepo {
			if err := s.exportImage(job.Eng, id, tempdir); err != nil {
				return job.Error(err)
			}
		}
		rootRepoMap[name] = rootRepo
	} else {
		img, err := s.LookupImage(name)
		if err != nil {
			return job.Error(err)
		}
		if img != nil {
			// This is a named image like 'busybox:latest'
			repoName, repoTag := parsers.ParseRepositoryTag(name)
			if err := s.exportImage(job.Eng, img.ID, tempdir); err != nil {
				return job.Error(err)
			}
			// check this length, because a lookup of a truncated has will not have a tag
			// and will not need to be added to this map
			if len(repoTag) > 0 {
				rootRepoMap[repoName] = Repository{repoTag: img.ID}
			}
		} else {
			// this must be an ID that didn't get looked up just right?
			if err := s.exportImage(job.Eng, name, tempdir); err != nil {
				return job.Error(err)
			}
		}
	}
	// write repositories, if there is something to write
	if len(rootRepoMap) > 0 {
		rootRepoJson, _ := json.Marshal(rootRepoMap)

		if err := ioutil.WriteFile(path.Join(tempdir, "repositories"), rootRepoJson, os.FileMode(0644)); err != nil {
			return job.Error(err)
		}
	} else {
		log.Debugf("There were no repositories to write")
	}

	fs, err := archive.Tar(tempdir, archive.Uncompressed)
	if err != nil {
		return job.Error(err)
	}
	defer fs.Close()

	if _, err := io.Copy(job.Stdout, fs); err != nil {
		return job.Error(err)
	}
	log.Debugf("End Serializing %s", name)
	return engine.StatusOK
}
Exemple #7
0
func (daemon *Daemon) CmdBuild(job *engine.Job) engine.Status {
	if len(job.Args) != 0 {
		return job.Errorf("Usage: %s\n", job.Name)
	}
	var (
		remoteURL      = job.Getenv("remote")
		repoName       = job.Getenv("t")
		suppressOutput = job.GetenvBool("q")
		noCache        = job.GetenvBool("nocache")
		rm             = job.GetenvBool("rm")
		forceRm        = job.GetenvBool("forcerm")
		authConfig     = &registry.AuthConfig{}
		configFile     = &registry.ConfigFile{}
		tag            string
		context        io.ReadCloser
	)
	job.GetenvJson("authConfig", authConfig)
	job.GetenvJson("configFile", configFile)
	repoName, tag = parsers.ParseRepositoryTag(repoName)

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

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

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

	sf := utils.NewStreamFormatter(job.GetenvBool("json"))
	b := NewBuildFile(daemon, daemon.eng,
		&utils.StdoutFormater{
			Writer:          job.Stdout,
			StreamFormatter: sf,
		},
		&utils.StderrFormater{
			Writer:          job.Stdout,
			StreamFormatter: sf,
		},
		!suppressOutput, !noCache, rm, forceRm, job.Stdout, sf, authConfig, configFile)
	id, err := b.Build(context)
	if err != nil {
		return job.Error(err)
	}
	if repoName != "" {
		daemon.Repositories().Set(repoName, tag, id, false)
	}
	return engine.StatusOK
}
Exemple #8
0
func (b *buildFile) CmdFrom(name string) error {
	image, err := b.daemon.Repositories().LookupImage(name)
	if err != nil {
		if b.daemon.Graph().IsNotExist(err) {
			remote, tag := parsers.ParseRepositoryTag(name)
			pullRegistryAuth := b.authConfig
			if len(b.configFile.Configs) > 0 {
				// The request came with a full auth config file, we prefer to use that
				endpoint, _, err := registry.ResolveRepositoryName(remote)
				if err != nil {
					return err
				}
				resolvedAuth := b.configFile.ResolveAuthConfig(endpoint)
				pullRegistryAuth = &resolvedAuth
			}
			job := b.eng.Job("pull", remote, tag)
			job.SetenvBool("json", b.sf.Json())
			job.SetenvBool("parallel", true)
			job.SetenvJson("authConfig", pullRegistryAuth)
			job.Stdout.Add(b.outOld)
			if err := job.Run(); err != nil {
				return err
			}
			image, err = b.daemon.Repositories().LookupImage(name)
			if err != nil {
				return err
			}
		} else {
			return err
		}
	}
	b.image = image.ID
	b.config = &runconfig.Config{}
	if image.Config != nil {
		b.config = image.Config
	}
	if b.config.Env == nil || len(b.config.Env) == 0 {
		b.config.Env = append(b.config.Env, "PATH="+DefaultPathEnv)
	}
	// Process ONBUILD triggers if they exist
	if nTriggers := len(b.config.OnBuild); nTriggers != 0 {
		fmt.Fprintf(b.errStream, "# Executing %d build triggers\n", nTriggers)
	}

	// Copy the ONBUILD triggers, and remove them from the config, since the config will be commited.
	onBuildTriggers := b.config.OnBuild
	b.config.OnBuild = []string{}

	for n, step := range onBuildTriggers {
		splitStep := strings.Split(step, " ")
		stepInstruction := strings.ToUpper(strings.Trim(splitStep[0], " "))
		switch stepInstruction {
		case "ONBUILD":
			return fmt.Errorf("Source image contains forbidden chained `ONBUILD ONBUILD` trigger: %s", step)
		case "MAINTAINER", "FROM":
			return fmt.Errorf("Source image contains forbidden %s trigger: %s", stepInstruction, step)
		}
		if err := b.BuildStep(fmt.Sprintf("onbuild-%d", n), step); err != nil {
			return err
		}
	}
	return nil
}
Exemple #9
0
// FIXME: make this private and use the job instead
func (daemon *Daemon) DeleteImage(eng *engine.Engine, name string, imgs *engine.Table, first, force, noprune bool) error {
	var (
		repoName, tag string
		tags          = []string{}
		tagDeleted    bool
	)

	// FIXME: please respect DRY and centralize repo+tag parsing in a single central place! -- shykes
	repoName, tag = parsers.ParseRepositoryTag(name)
	if tag == "" {
		tag = graph.DEFAULTTAG
	}

	img, err := daemon.Repositories().LookupImage(name)
	if err != nil {
		if r, _ := daemon.Repositories().Get(repoName); r != nil {
			return fmt.Errorf("No such image: %s:%s", repoName, tag)
		}
		return fmt.Errorf("No such image: %s", name)
	}

	if strings.Contains(img.ID, name) {
		repoName = ""
		tag = ""
	}

	byParents, err := daemon.Graph().ByParent()
	if err != nil {
		return err
	}

	//If delete by id, see if the id belong only to one repository
	if repoName == "" {
		for _, repoAndTag := range daemon.Repositories().ByID()[img.ID] {
			parsedRepo, parsedTag := parsers.ParseRepositoryTag(repoAndTag)
			if repoName == "" || repoName == parsedRepo {
				repoName = parsedRepo
				if parsedTag != "" {
					tags = append(tags, parsedTag)
				}
			} else if repoName != parsedRepo && !force {
				// the id belongs to multiple repos, like base:latest and user:test,
				// in that case return conflict
				return fmt.Errorf("Conflict, cannot delete image %s because it is tagged in multiple repositories, use -f to force", name)
			}
		}
	} else {
		tags = append(tags, tag)
	}

	if !first && len(tags) > 0 {
		return nil
	}

	//Untag the current image
	for _, tag := range tags {
		tagDeleted, err = daemon.Repositories().Delete(repoName, tag)
		if err != nil {
			return err
		}
		if tagDeleted {
			out := &engine.Env{}
			out.Set("Untagged", repoName+":"+tag)
			imgs.Add(out)
			eng.Job("log", "untag", img.ID, "").Run()
		}
	}
	tags = daemon.Repositories().ByID()[img.ID]
	if (len(tags) <= 1 && repoName == "") || len(tags) == 0 {
		if len(byParents[img.ID]) == 0 {
			if err := daemon.canDeleteImage(img.ID, force, tagDeleted); err != nil {
				return err
			}
			if err := daemon.Repositories().DeleteAll(img.ID); err != nil {
				return err
			}
			if err := daemon.Graph().Delete(img.ID); err != nil {
				return err
			}
			out := &engine.Env{}
			out.Set("Deleted", img.ID)
			imgs.Add(out)
			eng.Job("log", "delete", img.ID, "").Run()
			if img.Parent != "" && !noprune {
				err := daemon.DeleteImage(eng, img.Parent, imgs, false, force, noprune)
				if first {
					return err
				}

			}

		}
	}
	return nil
}