示例#1
0
func (h *Helper) createApp(t *c.C) (*ct.App, *ct.Release) {
	client := h.controllerClient(t)

	app := &ct.App{}
	t.Assert(client.CreateApp(app), c.IsNil)
	debugf(t, "created app %s (%s)", app.Name, app.ID)

	artifact := &ct.Artifact{Type: "docker", URI: imageURIs["test-apps"]}
	t.Assert(client.CreateArtifact(artifact), c.IsNil)

	release := &ct.Release{
		ArtifactID: artifact.ID,
		Processes: map[string]ct.ProcessType{
			"echoer": {
				Cmd:     []string{"/bin/echoer"},
				Service: "echo-service",
				Ports: []ct.Port{{
					Proto: "tcp",
					Service: &host.Service{
						Name:   "echo-service",
						Create: true,
					},
				}},
			},
			"ping": {
				Cmd:   []string{"/bin/pingserv"},
				Ports: []ct.Port{{Proto: "tcp"}},
			},
			"printer": {
				Cmd: []string{"sh", "-c", "while true; do echo I like to print; sleep 1; done"},
			},
			"crasher": {
				Cmd: []string{"sh", "-c", "trap 'exit 1' SIGTERM; while true; do echo I like to crash; sleep 1; done"},
			},
			"omni": {
				Cmd:  []string{"sh", "-c", "while true; do echo I am everywhere; sleep 1; done"},
				Omni: true,
			},
			"resources": {
				Cmd:       []string{"sh", "-c", resourceCmd},
				Resources: testResources(),
			},
			"ish": {
				Cmd:   []string{"/bin/ish"},
				Ports: []ct.Port{{Proto: "tcp"}},
				Env: map[string]string{
					"NAME": app.Name,
				},
			},
		},
	}
	t.Assert(client.CreateRelease(release), c.IsNil)
	t.Assert(client.SetAppRelease(app.ID, release.ID), c.IsNil)
	return app, release
}
示例#2
0
func (h *Helper) createApp(t *c.C) (*ct.App, *ct.Release) {
	client := h.controllerClient(t)

	app := &ct.App{}
	t.Assert(client.CreateApp(app), c.IsNil)
	debugf(t, "created app %s (%s)", app.Name, app.ID)

	artifact := h.newSlugrunnerArtifact(t)
	t.Assert(client.CreateArtifact(artifact), c.IsNil)

	release := &ct.Release{
		ArtifactID: artifact.ID,
		Processes: map[string]ct.ProcessType{
			"echoer": {
				Entrypoint: []string{"bash", "-c"},
				Cmd:        []string{"sdutil exec -s echo-service:$PORT socat -v tcp-l:$PORT,fork exec:/bin/cat"},
				Ports:      []ct.Port{{Proto: "tcp"}},
			},
			"printer": {
				Entrypoint: []string{"bash", "-c"},
				Cmd:        []string{"while true; do echo I like to print; sleep 1; done"},
				Ports:      []ct.Port{{Proto: "tcp"}},
			},
			"crasher": {
				Entrypoint: []string{"bash", "-c"},
				Cmd:        []string{"trap 'exit 1' SIGTERM; while true; do echo I like to crash; sleep 1; done"},
			},
			"omni": {
				Entrypoint: []string{"bash", "-c"},
				Cmd:        []string{"while true; do echo I am everywhere; sleep 1; done"},
				Omni:       true,
			},
		},
	}
	t.Assert(client.CreateRelease(release), c.IsNil)
	t.Assert(client.SetAppRelease(app.ID, release.ID), c.IsNil)
	return app, release
}
示例#3
0
func main() {
	client, err := controller.NewClient("", os.Getenv("CONTROLLER_AUTH_KEY"))
	if err != nil {
		log.Fatalln("Unable to connect to controller:", err)
	}
	// TODO: use discoverd http dialer here?
	services, err := discoverd.Services("shelf", discoverd.DefaultTimeout)
	if err != nil || len(services) < 1 {
		log.Fatalf("Unable to discover shelf %q", err)
	}
	shelfHost := services[0].Addr

	app := os.Args[1]
	commit := os.Args[2]

	_, err = client.GetApp(app)
	if err == controller.ErrNotFound {
		log.Fatalf("Unknown app %q", app)
	} else if err != nil {
		log.Fatalln("Error retrieving app:", err)
	}
	prevRelease, err := client.GetAppRelease(app)
	if err == controller.ErrNotFound {
		prevRelease = &ct.Release{}
	} else if err != nil {
		log.Fatalln("Error creating getting current app release:", err)
	}

	fmt.Printf("-----> Building %s...\n", app)

	var output bytes.Buffer
	slugURL := fmt.Sprintf("http://%s/%s.tgz", shelfHost, commit)
	cmd := exec.Command("flynn/slugbuilder", slugURL)
	cmd.Stdout = io.MultiWriter(os.Stdout, &output)
	cmd.Stderr = os.Stderr
	cmd.Stdin = os.Stdin
	if buildpackURL, ok := prevRelease.Env["BUILDPACK_URL"]; ok {
		cmd.Env = map[string]string{"BUILDPACK_URL": buildpackURL}
	}

	if err := cmd.Run(); err != nil {
		log.Fatalln("Build failed:", err)
	}

	var types []string
	if match := typesPattern.FindSubmatch(output.Bytes()); match != nil {
		types = strings.Split(string(match[1]), ", ")
	}

	fmt.Printf("-----> Creating release...\n")

	artifact := &ct.Artifact{URI: "docker://flynn/slugrunner"}
	if err := client.CreateArtifact(artifact); err != nil {
		log.Fatalln("Error creating artifact:", err)
	}

	release := &ct.Release{
		ArtifactID: artifact.ID,
		Env:        prevRelease.Env,
	}
	procs := make(map[string]ct.ProcessType)
	for _, t := range types {
		proc := prevRelease.Processes[t]
		proc.Cmd = []string{"start", t}
		if t == "web" {
			proc.Ports.TCP = 1
			if proc.Env == nil {
				proc.Env = make(map[string]string)
			}
			proc.Env["SD_NAME"] = app + "-web"
		}
		procs[t] = proc
	}
	release.Processes = procs
	if release.Env == nil {
		release.Env = make(map[string]string)
	}
	release.Env["SLUG_URL"] = slugURL

	if err := client.CreateRelease(release); err != nil {
		log.Fatalln("Error creating release:", err)
	}
	if err := client.SetAppRelease(app, release.ID); err != nil {
		log.Fatalln("Error setting app release:", err)
	}

	fmt.Println("=====> Application deployed")
}
示例#4
0
文件: updater.go 项目: imjorge/flynn
func run() error {
	log := log15.New()
	if *isTTY {
		log.SetHandler(log15.StreamHandler(colorable.NewColorableStdout(), log15.TerminalFormat()))
	}

	var images map[string]*ct.Artifact
	if err := json.NewDecoder(os.Stdin).Decode(&images); err != nil {
		log.Error("error decoding images", "err", err)
		return err
	}

	req, err := http.NewRequest("GET", "http://status-web.discoverd", nil)
	if err != nil {
		return err
	}
	req.Header = make(http.Header)
	req.Header.Set("Accept", "application/json")
	res, err := http.DefaultClient.Do(req)
	if err != nil {
		log.Error("error getting cluster status", "err", err)
		return err
	}
	defer res.Body.Close()
	if res.StatusCode != 200 {
		log.Error("cluster status is unhealthy", "code", res.StatusCode)
		return fmt.Errorf("cluster is unhealthy")
	}
	var statusWrapper struct {
		Data struct {
			Detail map[string]status.Status
		}
	}
	if err := json.NewDecoder(res.Body).Decode(&statusWrapper); err != nil {
		log.Error("error decoding cluster status JSON", "err", err)
		return err
	}
	statuses := statusWrapper.Data.Detail

	instances, err := discoverd.GetInstances("controller", 10*time.Second)
	if err != nil {
		log.Error("error looking up controller in service discovery", "err", err)
		return err
	}
	client, err := controller.NewClient("", instances[0].Meta["AUTH_KEY"])
	if err != nil {
		log.Error("error creating controller client", "err", err)
		return err
	}

	log.Info("validating images")
	for _, app := range updater.SystemApps {
		if v := version.Parse(statuses[app.Name].Version); !v.Dev && app.MinVersion != "" && v.Before(version.Parse(app.MinVersion)) {
			log.Info(
				"not updating image of system app, can't upgrade from running version",
				"app", app.Name,
				"version", v,
			)
			continue
		}
		if _, ok := images[app.Name]; !ok {
			err := fmt.Errorf("missing image: %s", app.Name)
			log.Error(err.Error())
			return err
		}
	}

	log.Info("creating new image artifacts")
	redisImage = images["redis"]
	if err := client.CreateArtifact(redisImage); err != nil {
		log.Error("error creating redis image artifact", "err", err)
		return err
	}
	slugRunner = images["slugrunner"]
	if err := client.CreateArtifact(slugRunner); err != nil {
		log.Error("error creating slugrunner image artifact", "err", err)
		return err
	}
	slugBuilder = images["slugbuilder"]
	if err := client.CreateArtifact(slugBuilder); err != nil {
		log.Error("error creating slugbuilder image artifact", "err", err)
		return err
	}

	// deploy system apps in order first
	for _, appInfo := range updater.SystemApps {
		if appInfo.ImageOnly {
			continue // skip ImageOnly updates
		}
		log := log.New("name", appInfo.Name)
		log.Info("starting deploy of system app")

		app, err := client.GetApp(appInfo.Name)
		if err == controller.ErrNotFound && appInfo.Optional {
			log.Info(
				"skipped deploy of system app",
				"reason", "optional app not present",
				"app", appInfo.Name,
			)
			continue
		} else if err != nil {
			log.Error("error getting app", "err", err)
			return err
		}
		if err := deployApp(client, app, images[appInfo.Name], appInfo.UpdateRelease, log); err != nil {
			if e, ok := err.(errDeploySkipped); ok {
				log.Info(
					"skipped deploy of system app",
					"reason", e.reason,
					"app", appInfo.Name,
				)
				continue
			}
			return err
		}
		log.Info("finished deploy of system app")
	}

	// deploy all other apps (including provisioned Redis apps)
	apps, err := client.AppList()
	if err != nil {
		log.Error("error getting apps", "err", err)
		return err
	}
	for _, app := range apps {
		log := log.New("name", app.Name)

		if app.RedisAppliance() {
			log.Info("starting deploy of Redis app")
			if err := deployApp(client, app, redisImage, nil, log); err != nil {
				if e, ok := err.(errDeploySkipped); ok {
					log.Info("skipped deploy of Redis app", "reason", e.reason)
					continue
				}
				return err
			}
			log.Info("finished deploy of Redis app")
			continue
		}

		if app.System() {
			continue
		}

		log.Info("starting deploy of app to update slugrunner")
		if err := deployApp(client, app, slugRunner, nil, log); err != nil {
			if e, ok := err.(errDeploySkipped); ok {
				log.Info("skipped deploy of app", "reason", e.reason)
				continue
			}
			return err
		}
		log.Info("finished deploy of app")
	}
	return nil
}
示例#5
0
func main() {
	client, err := controller.NewClient("", os.Getenv("CONTROLLER_AUTH_KEY"))
	if err != nil {
		log.Fatalln("Unable to connect to controller:", err)
	}

	appName := os.Args[1]

	app, err := client.GetApp(appName)
	if err == controller.ErrNotFound {
		log.Fatalf("Unknown app %q", appName)
	} else if err != nil {
		log.Fatalln("Error retrieving app:", err)
	}
	prevRelease, err := client.GetAppRelease(app.Name)
	if err == controller.ErrNotFound {
		prevRelease = &ct.Release{}
	} else if err != nil {
		log.Fatalln("Error getting current app release:", err)
	}

	fmt.Printf("-----> Building %s...\n", app.Name)

	var output bytes.Buffer
	slugURL := fmt.Sprintf("%s/%s.tgz", blobstoreURL, random.UUID())
	cmd := exec.Command(exec.DockerImage(os.Getenv("SLUGBUILDER_IMAGE_URI")), slugURL)
	cmd.Stdout = io.MultiWriter(os.Stdout, &output)
	cmd.Stderr = os.Stderr
	if len(prevRelease.Env) > 0 {
		stdin, err := cmd.StdinPipe()
		if err != nil {
			log.Fatalln(err)
		}
		go appendEnvDir(os.Stdin, stdin, prevRelease.Env)
	} else {
		cmd.Stdin = os.Stdin
	}
	cmd.Env = make(map[string]string)
	cmd.Env["BUILD_CACHE_URL"] = fmt.Sprintf("%s/%s-cache.tgz", blobstoreURL, app.ID)
	if buildpackURL, ok := prevRelease.Env["BUILDPACK_URL"]; ok {
		cmd.Env["BUILDPACK_URL"] = buildpackURL
	}

	if err := cmd.Run(); err != nil {
		log.Fatalln("Build failed:", err)
	}

	var types []string
	if match := typesPattern.FindSubmatch(output.Bytes()); match != nil {
		types = strings.Split(string(match[1]), ", ")
	}

	fmt.Printf("-----> Creating release...\n")

	artifact := &ct.Artifact{Type: "docker", URI: os.Getenv("SLUGRUNNER_IMAGE_URI")}
	if err := client.CreateArtifact(artifact); err != nil {
		log.Fatalln("Error creating artifact:", err)
	}

	release := &ct.Release{
		ArtifactID: artifact.ID,
		Env:        prevRelease.Env,
	}
	procs := make(map[string]ct.ProcessType)
	for _, t := range types {
		proc := prevRelease.Processes[t]
		proc.Cmd = []string{"start", t}
		if t == "web" {
			proc.Ports = []ct.Port{{
				Port:  8080,
				Proto: "tcp",
				Service: &host.Service{
					Name:   app.Name + "-web",
					Create: true,
					Check:  &host.HealthCheck{Type: "tcp"},
				},
			}}
		}
		procs[t] = proc
	}
	release.Processes = procs
	if release.Env == nil {
		release.Env = make(map[string]string)
	}
	release.Env["SLUG_URL"] = slugURL

	if err := client.CreateRelease(release); err != nil {
		log.Fatalln("Error creating release:", err)
	}
	if err := client.DeployAppRelease(app.Name, release.ID); err != nil {
		log.Fatalln("Error deploying app release:", err)
	}

	fmt.Println("=====> Application deployed")

	// If the app is new and the web process type exists,
	// it should scale to one process after the release is created.
	if _, ok := procs["web"]; ok && prevRelease.ID == "" {
		formation := &ct.Formation{
			AppID:     app.ID,
			ReleaseID: release.ID,
			Processes: map[string]int{"web": 1},
		}
		if err := client.PutFormation(formation); err != nil {
			log.Fatalln("Error putting formation:", err)
		}

		fmt.Println("=====> Added default web=1 formation")
	}
}
示例#6
0
文件: test_cli.go 项目: imjorge/flynn
func (s *CLISuite) TestSlugReleaseGarbageCollection(t *c.C) {
	client := s.controllerClient(t)

	// create app with gc.max_inactive_slug_releases=3
	maxInactiveSlugReleases := 3
	app := &ct.App{Meta: map[string]string{"gc.max_inactive_slug_releases": strconv.Itoa(maxInactiveSlugReleases)}}
	t.Assert(client.CreateApp(app), c.IsNil)

	// create an image artifact
	imageArtifact := s.createArtifact(t, "test-apps")

	// create 5 slug artifacts
	tmp, err := ioutil.TempFile("", "squashfs-")
	t.Assert(err, c.IsNil)
	defer os.Remove(tmp.Name())
	defer tmp.Close()
	t.Assert(exec.Command("mksquashfs", t.MkDir(), tmp.Name(), "-noappend").Run(), c.IsNil)
	slug, err := ioutil.ReadAll(tmp)
	t.Assert(err, c.IsNil)
	slugHash := sha512.Sum512(slug)
	slugs := []string{
		"http://blobstore.discoverd/layer/1.squashfs",
		"http://blobstore.discoverd/layer/2.squashfs",
		"http://blobstore.discoverd/layer/3.squashfs",
		"http://blobstore.discoverd/layer/4.squashfs",
		"http://blobstore.discoverd/layer/5.squashfs",
	}
	slugArtifacts := make([]*ct.Artifact, len(slugs))
	put := func(url string, data []byte) {
		req, err := http.NewRequest("PUT", url, bytes.NewReader(data))
		t.Assert(err, c.IsNil)
		res, err := http.DefaultClient.Do(req)
		t.Assert(err, c.IsNil)
		res.Body.Close()
		t.Assert(res.StatusCode, c.Equals, http.StatusOK)
	}
	for i, layerURL := range slugs {
		manifest := &ct.ImageManifest{
			Type: ct.ImageManifestTypeV1,
			Rootfs: []*ct.ImageRootfs{{
				Layers: []*ct.ImageLayer{{
					ID:     strconv.Itoa(i + 1),
					Type:   ct.ImageLayerTypeSquashfs,
					Length: int64(len(slug)),
					Hashes: map[string]string{"sha512": hex.EncodeToString(slugHash[:])},
				}},
			}},
		}
		data := manifest.RawManifest()
		url := fmt.Sprintf("http://blobstore.discoverd/image/%s.json", manifest.ID())
		put(url, data)
		put(layerURL, slug)
		artifact := &ct.Artifact{
			Type:             ct.ArtifactTypeFlynn,
			URI:              url,
			Meta:             map[string]string{"blobstore": "true"},
			RawManifest:      data,
			Hashes:           manifest.Hashes(),
			Size:             int64(len(data)),
			LayerURLTemplate: "http://blobstore.discoverd/layer/{id}.squashfs",
		}
		t.Assert(client.CreateArtifact(artifact), c.IsNil)
		slugArtifacts[i] = artifact
	}

	// create 6 releases, the second being scaled up and having the
	// same slug as the third (so prevents the slug being deleted)
	releases := make([]*ct.Release, 6)
	for i, r := range []struct {
		slug   *ct.Artifact
		active bool
	}{
		{slugArtifacts[0], false},
		{slugArtifacts[1], true},
		{slugArtifacts[1], false},
		{slugArtifacts[2], false},
		{slugArtifacts[3], false},
		{slugArtifacts[4], false},
	} {
		release := &ct.Release{
			ArtifactIDs: []string{imageArtifact.ID, r.slug.ID},
			Processes: map[string]ct.ProcessType{
				"app": {Args: []string{"/bin/pingserv"}, Ports: []ct.Port{{Proto: "tcp"}}},
			},
			Meta: map[string]string{"git": "true"},
		}
		t.Assert(client.CreateRelease(release), c.IsNil)
		procs := map[string]int{"app": 0}
		if r.active {
			procs["app"] = 1
		}
		t.Assert(client.PutFormation(&ct.Formation{
			AppID:     app.ID,
			ReleaseID: release.ID,
			Processes: procs,
		}), c.IsNil)
		releases[i] = release
	}

	// scale the last release so we can deploy it
	lastRelease := releases[len(releases)-1]
	watcher, err := client.WatchJobEvents(app.ID, lastRelease.ID)
	t.Assert(err, c.IsNil)
	defer watcher.Close()
	t.Assert(client.PutFormation(&ct.Formation{
		AppID:     app.ID,
		ReleaseID: lastRelease.ID,
		Processes: map[string]int{"app": 1},
	}), c.IsNil)
	t.Assert(watcher.WaitFor(ct.JobEvents{"app": ct.JobUpEvents(1)}, scaleTimeout, nil), c.IsNil)
	t.Assert(client.SetAppRelease(app.ID, lastRelease.ID), c.IsNil)

	// subscribe to garbage collection events
	gcEvents := make(chan *ct.Event)
	stream, err := client.StreamEvents(ct.StreamEventsOptions{
		AppID:       app.ID,
		ObjectTypes: []ct.EventType{ct.EventTypeAppGarbageCollection},
	}, gcEvents)
	t.Assert(err, c.IsNil)
	defer stream.Close()

	// deploy a new release with the same slug as the last release
	timeoutCh := make(chan struct{})
	time.AfterFunc(5*time.Minute, func() { close(timeoutCh) })
	newRelease := *lastRelease
	newRelease.ID = ""
	t.Assert(client.CreateRelease(&newRelease), c.IsNil)
	t.Assert(client.DeployAppRelease(app.ID, newRelease.ID, timeoutCh), c.IsNil)

	// wait for garbage collection
	select {
	case event, ok := <-gcEvents:
		if !ok {
			t.Fatalf("event stream closed unexpectedly: %s", stream.Err())
		}
		var e ct.AppGarbageCollectionEvent
		t.Assert(json.Unmarshal(event.Data, &e), c.IsNil)
		if e.Error != "" {
			t.Fatalf("garbage collection failed: %s", e.Error)
		}
	case <-time.After(60 * time.Second):
		t.Fatal("timed out waiting for garbage collection")
	}

	// check we have 4 distinct slug releases (so 5 in total, only 3 are
	// inactive)
	list, err := client.AppReleaseList(app.ID)
	t.Assert(err, c.IsNil)
	t.Assert(list, c.HasLen, maxInactiveSlugReleases+2)
	distinctSlugs := make(map[string]struct{}, len(list))
	for _, release := range list {
		t.Assert(release.ArtifactIDs, c.HasLen, 2)
		distinctSlugs[release.ArtifactIDs[1]] = struct{}{}
	}
	t.Assert(distinctSlugs, c.HasLen, maxInactiveSlugReleases+1)

	// check the first and third releases got deleted, but the rest remain
	assertDeleted := func(release *ct.Release, deleted bool) {
		_, err := client.GetRelease(release.ID)
		if deleted {
			t.Assert(err, c.Equals, controller.ErrNotFound)
		} else {
			t.Assert(err, c.IsNil)
		}
	}
	assertDeleted(releases[0], true)
	assertDeleted(releases[1], false)
	assertDeleted(releases[2], true)
	assertDeleted(releases[3], false)
	assertDeleted(releases[4], false)
	assertDeleted(releases[5], false)
	assertDeleted(&newRelease, false)

	// check the first slug got deleted, but the rest remain
	s.assertURI(t, slugs[0], http.StatusNotFound)
	for i := 1; i < len(slugs); i++ {
		s.assertURI(t, slugs[i], http.StatusOK)
	}
}
示例#7
0
func main() {
	client, err := controller.NewClient("", os.Getenv("CONTROLLER_AUTH_KEY"))
	if err != nil {
		log.Fatalln("Unable to connect to controller:", err)
	}
	// TODO: use discoverd http dialer here?
	services, err := discoverd.Services("blobstore", discoverd.DefaultTimeout)
	if err != nil || len(services) < 1 {
		log.Fatalf("Unable to discover blobstore %q", err)
	}
	blobstoreHost := services[0].Addr

	appName := os.Args[1]

	app, err := client.GetApp(appName)
	if err == controller.ErrNotFound {
		log.Fatalf("Unknown app %q", appName)
	} else if err != nil {
		log.Fatalln("Error retrieving app:", err)
	}
	prevRelease, err := client.GetAppRelease(app.Name)
	if err == controller.ErrNotFound {
		prevRelease = &ct.Release{}
	} else if err != nil {
		log.Fatalln("Error creating getting current app release:", err)
	}

	fmt.Printf("-----> Building %s...\n", app.Name)

	var output bytes.Buffer
	slugURL := fmt.Sprintf("http://%s/%s.tgz", blobstoreHost, random.UUID())
	cmd := exec.Command(exec.DockerImage("flynn/slugbuilder", os.Getenv("SLUGBUILDER_IMAGE_ID")), slugURL)
	cmd.Stdout = io.MultiWriter(os.Stdout, &output)
	cmd.Stderr = os.Stderr
	stdin, err := cmd.StdinPipe()
	if err != nil {
		log.Fatalln(err)
	}
	go appendEnvDir(os.Stdin, stdin, prevRelease.Env)
	if buildpackURL, ok := prevRelease.Env["BUILDPACK_URL"]; ok {
		cmd.Env = map[string]string{"BUILDPACK_URL": buildpackURL}
	}

	if err := cmd.Run(); err != nil {
		log.Fatalln("Build failed:", err)
	}

	var types []string
	if match := typesPattern.FindSubmatch(output.Bytes()); match != nil {
		types = strings.Split(string(match[1]), ", ")
	}

	fmt.Printf("-----> Creating release...\n")

	artifact := &ct.Artifact{Type: "docker", URI: "https://registry.hub.docker.com/flynn/slugrunner?id=" + os.Getenv("SLUGRUNNER_IMAGE_ID")}
	if err := client.CreateArtifact(artifact); err != nil {
		log.Fatalln("Error creating artifact:", err)
	}

	release := &ct.Release{
		ArtifactID: artifact.ID,
		Env:        prevRelease.Env,
	}
	procs := make(map[string]ct.ProcessType)
	for _, t := range types {
		proc := prevRelease.Processes[t]
		proc.Cmd = []string{"start", t}
		if t == "web" {
			proc.Ports = []ct.Port{{Proto: "tcp"}}
			if proc.Env == nil {
				proc.Env = make(map[string]string)
			}
			proc.Env["SD_NAME"] = app.Name + "-web"
		}
		procs[t] = proc
	}
	release.Processes = procs
	if release.Env == nil {
		release.Env = make(map[string]string)
	}
	release.Env["SLUG_URL"] = slugURL

	if err := client.CreateRelease(release); err != nil {
		log.Fatalln("Error creating release:", err)
	}
	if err := client.SetAppRelease(app.Name, release.ID); err != nil {
		log.Fatalln("Error setting app release:", err)
	}

	fmt.Println("=====> Application deployed")

	// If the app is new and the web process type exists,
	// it should scale to one process after the release is created.
	if _, ok := procs["web"]; ok && prevRelease.ID == "" {
		formation := &ct.Formation{
			AppID:     app.ID,
			ReleaseID: release.ID,
			Processes: map[string]int{"web": 1},
		}
		if err := client.PutFormation(formation); err != nil {
			log.Fatalln("Error putting formation:", err)
		}

		fmt.Println("=====> Added default web=1 formation")
	}
}
示例#8
0
func (s *ReleaseSuite) TestReleaseImages(t *c.C) {
	if testCluster == nil {
		t.Skip("cannot boot release cluster")
	}

	// stream script output to t.Log
	logReader, logWriter := io.Pipe()
	defer logWriter.Close()
	go func() {
		buf := bufio.NewReader(logReader)
		for {
			line, err := buf.ReadString('\n')
			if err != nil {
				return
			}
			debug(t, line[0:len(line)-1])
		}
	}()

	// boot the release cluster, release components to a blobstore and output the new version.json
	releaseCluster := s.addReleaseHosts(t)
	buildHost := releaseCluster.Instances[0]
	var versionJSON bytes.Buffer
	t.Assert(buildHost.Run("bash -ex", &tc.Streams{Stdin: releaseScript, Stdout: &versionJSON, Stderr: logWriter}), c.IsNil)
	var versions map[string]string
	t.Assert(json.Unmarshal(versionJSON.Bytes(), &versions), c.IsNil)

	// install Flynn from the blobstore on the vanilla host
	blobstore := struct{ Blobstore string }{buildHost.IP + ":8080"}
	installHost := releaseCluster.Instances[3]
	var script bytes.Buffer
	installScript.Execute(&script, blobstore)
	var installOutput bytes.Buffer
	out := io.MultiWriter(logWriter, &installOutput)
	t.Assert(installHost.Run("sudo bash -ex", &tc.Streams{Stdin: &script, Stdout: out, Stderr: out}), c.IsNil)

	// check the flynn-host version is correct
	var hostVersion bytes.Buffer
	t.Assert(installHost.Run("flynn-host version", &tc.Streams{Stdout: &hostVersion}), c.IsNil)
	t.Assert(strings.TrimSpace(hostVersion.String()), c.Equals, "v20160711.0-test")

	// check rebuilt images were downloaded
	for name, id := range versions {
		expected := fmt.Sprintf("%s image %s downloaded", name, id)
		if !strings.Contains(installOutput.String(), expected) {
			t.Fatalf(`expected install to download %s %s`, name, id)
		}
	}

	// installing on an instance with Flynn running should fail
	script.Reset()
	installScript.Execute(&script, blobstore)
	installOutput.Reset()
	err := buildHost.Run("sudo bash -ex", &tc.Streams{Stdin: &script, Stdout: out, Stderr: out})
	if err == nil || !strings.Contains(installOutput.String(), "ERROR: Flynn is already installed.") {
		t.Fatal("expected Flynn install to fail but it didn't")
	}

	// create a controller client for the release cluster
	pin, err := base64.StdEncoding.DecodeString(releaseCluster.ControllerPin)
	t.Assert(err, c.IsNil)
	client, err := controller.NewClientWithConfig(
		"https://"+buildHost.IP,
		releaseCluster.ControllerKey,
		controller.Config{Pin: pin, Domain: releaseCluster.ControllerDomain},
	)
	t.Assert(err, c.IsNil)

	// deploy a slug based app + Redis resource
	slugApp := &ct.App{}
	t.Assert(client.CreateApp(slugApp), c.IsNil)
	gitreceive, err := client.GetAppRelease("gitreceive")
	t.Assert(err, c.IsNil)
	imageArtifact, err := client.GetArtifact(gitreceive.Env["SLUGRUNNER_IMAGE_ID"])
	t.Assert(err, c.IsNil)
	slugArtifact := &ct.Artifact{Type: host.ArtifactTypeFile, URI: fmt.Sprintf("http://%s:8080/slug.tgz", buildHost.IP)}
	t.Assert(client.CreateArtifact(slugArtifact), c.IsNil)
	resource, err := client.ProvisionResource(&ct.ResourceReq{ProviderID: "redis", Apps: []string{slugApp.ID}})
	t.Assert(err, c.IsNil)
	release := &ct.Release{
		ArtifactIDs: []string{imageArtifact.ID, slugArtifact.ID},
		Processes:   map[string]ct.ProcessType{"web": {Args: []string{"/runner/init", "bin/http"}}},
		Meta:        map[string]string{"git": "true"},
		Env:         resource.Env,
	}
	t.Assert(client.CreateRelease(release), c.IsNil)
	t.Assert(client.SetAppRelease(slugApp.ID, release.ID), c.IsNil)
	watcher, err := client.WatchJobEvents(slugApp.ID, release.ID)
	t.Assert(err, c.IsNil)
	defer watcher.Close()
	t.Assert(client.PutFormation(&ct.Formation{
		AppID:     slugApp.ID,
		ReleaseID: release.ID,
		Processes: map[string]int{"web": 1},
	}), c.IsNil)
	err = watcher.WaitFor(ct.JobEvents{"web": {ct.JobStateUp: 1}}, scaleTimeout, nil)
	t.Assert(err, c.IsNil)

	// run a cluster update from the blobstore
	updateHost := releaseCluster.Instances[1]
	script.Reset()
	updateScript.Execute(&script, blobstore)
	var updateOutput bytes.Buffer
	out = io.MultiWriter(logWriter, &updateOutput)
	t.Assert(updateHost.Run("bash -ex", &tc.Streams{Stdin: &script, Stdout: out, Stderr: out}), c.IsNil)

	// check rebuilt images were downloaded
	for name := range versions {
		for _, host := range releaseCluster.Instances[0:2] {
			expected := fmt.Sprintf(`"pulled image" host=%s name=%s`, host.ID, name)
			if !strings.Contains(updateOutput.String(), expected) {
				t.Fatalf(`expected update to download %s on host %s`, name, host.ID)
			}
		}
	}

	assertImage := func(uri, image string) {
		u, err := url.Parse(uri)
		t.Assert(err, c.IsNil)
		t.Assert(u.Query().Get("id"), c.Equals, versions[image])
	}

	// check system apps were deployed correctly
	for _, app := range updater.SystemApps {
		if app.ImageOnly {
			continue // we don't deploy ImageOnly updates
		}
		if app.Image == "" {
			app.Image = "flynn/" + app.Name
		}
		debugf(t, "checking new %s release is using image %s", app.Name, versions[app.Image])
		expected := fmt.Sprintf(`"finished deploy of system app" name=%s`, app.Name)
		if !strings.Contains(updateOutput.String(), expected) {
			t.Fatalf(`expected update to deploy %s`, app.Name)
		}
		release, err := client.GetAppRelease(app.Name)
		t.Assert(err, c.IsNil)
		debugf(t, "new %s release ID: %s", app.Name, release.ID)
		artifact, err := client.GetArtifact(release.ImageArtifactID())
		t.Assert(err, c.IsNil)
		debugf(t, "new %s artifact: %+v", app.Name, artifact)
		assertImage(artifact.URI, app.Image)
	}

	// check gitreceive has the correct slug env vars
	gitreceive, err = client.GetAppRelease("gitreceive")
	t.Assert(err, c.IsNil)
	for _, name := range []string{"slugbuilder", "slugrunner"} {
		artifact, err := client.GetArtifact(gitreceive.Env[strings.ToUpper(name)+"_IMAGE_ID"])
		t.Assert(err, c.IsNil)
		assertImage(artifact.URI, "flynn/"+name)
	}

	// check slug based app was deployed correctly
	release, err = client.GetAppRelease(slugApp.Name)
	t.Assert(err, c.IsNil)
	imageArtifact, err = client.GetArtifact(release.ImageArtifactID())
	t.Assert(err, c.IsNil)
	assertImage(imageArtifact.URI, "flynn/slugrunner")

	// check Redis app was deployed correctly
	release, err = client.GetAppRelease(resource.Env["FLYNN_REDIS"])
	t.Assert(err, c.IsNil)
	imageArtifact, err = client.GetArtifact(release.ImageArtifactID())
	t.Assert(err, c.IsNil)
	assertImage(imageArtifact.URI, "flynn/redis")
}
示例#9
0
func main() {
	client, err := controller.NewClient("", os.Getenv("CONTROLLER_KEY"))
	if err != nil {
		log.Fatalln("Unable to connect to controller:", err)
	}

	appName := os.Args[1]

	app, err := client.GetApp(appName)
	if err == controller.ErrNotFound {
		log.Fatalf("Unknown app %q", appName)
	} else if err != nil {
		log.Fatalln("Error retrieving app:", err)
	}
	prevRelease, err := client.GetAppRelease(app.Name)
	if err == controller.ErrNotFound {
		prevRelease = &ct.Release{}
	} else if err != nil {
		log.Fatalln("Error getting current app release:", err)
	}

	fmt.Printf("-----> Building %s...\n", app.Name)

	var output bytes.Buffer
	slugURL := fmt.Sprintf("%s/%s.tgz", blobstoreURL, random.UUID())
	cmd := exec.Command(exec.DockerImage(os.Getenv("SLUGBUILDER_IMAGE_URI")), slugURL)
	cmd.Stdout = io.MultiWriter(os.Stdout, &output)
	cmd.Stderr = os.Stderr
	cmd.Meta = map[string]string{
		"flynn-controller.app":      app.ID,
		"flynn-controller.app_name": app.Name,
		"flynn-controller.release":  prevRelease.ID,
		"flynn-controller.type":     "slugbuilder",
	}
	if len(prevRelease.Env) > 0 {
		stdin, err := cmd.StdinPipe()
		if err != nil {
			log.Fatalln(err)
		}
		go appendEnvDir(os.Stdin, stdin, prevRelease.Env)
	} else {
		cmd.Stdin = os.Stdin
	}
	cmd.Env = make(map[string]string)
	cmd.Env["BUILD_CACHE_URL"] = fmt.Sprintf("%s/%s-cache.tgz", blobstoreURL, app.ID)
	if buildpackURL, ok := prevRelease.Env["BUILDPACK_URL"]; ok {
		cmd.Env["BUILDPACK_URL"] = buildpackURL
	}
	for _, k := range []string{"SSH_CLIENT_KEY", "SSH_CLIENT_HOSTS"} {
		if v := os.Getenv(k); v != "" {
			cmd.Env[k] = v
		}
	}

	if err := cmd.Run(); err != nil {
		log.Fatalln("Build failed:", err)
	}

	var types []string
	if match := typesPattern.FindSubmatch(output.Bytes()); match != nil {
		types = strings.Split(string(match[1]), ", ")
	}

	fmt.Printf("-----> Creating release...\n")

	artifact := &ct.Artifact{Type: "docker", URI: os.Getenv("SLUGRUNNER_IMAGE_URI")}
	if err := client.CreateArtifact(artifact); err != nil {
		log.Fatalln("Error creating artifact:", err)
	}

	release := &ct.Release{
		ArtifactID: artifact.ID,
		Env:        prevRelease.Env,
	}
	procs := make(map[string]ct.ProcessType)
	for _, t := range types {
		proc := prevRelease.Processes[t]
		proc.Cmd = []string{"start", t}
		if t == "web" {
			proc.Ports = []ct.Port{{
				Port:  8080,
				Proto: "tcp",
				Service: &host.Service{
					Name:   app.Name + "-web",
					Create: true,
					Check:  &host.HealthCheck{Type: "tcp"},
				},
			}}
		}
		procs[t] = proc
	}
	release.Processes = procs
	if release.Env == nil {
		release.Env = make(map[string]string)
	}
	release.Env["SLUG_URL"] = slugURL

	if err := client.CreateRelease(release); err != nil {
		log.Fatalln("Error creating release:", err)
	}
	if err := client.DeployAppRelease(app.Name, release.ID); err != nil {
		log.Fatalln("Error deploying app release:", err)
	}

	fmt.Println("=====> Application deployed")

	if needsDefaultScale(app.ID, prevRelease.ID, procs, client) {
		formation := &ct.Formation{
			AppID:     app.ID,
			ReleaseID: release.ID,
			Processes: map[string]int{"web": 1},
		}

		watcher, err := client.WatchJobEvents(app.ID, release.ID)
		if err != nil {
			log.Fatalln("Error streaming job events", err)
			return
		}
		defer watcher.Close()

		if err := client.PutFormation(formation); err != nil {
			log.Fatalln("Error putting formation:", err)
		}
		fmt.Println("=====> Waiting for web job to start...")

		err = watcher.WaitFor(ct.JobEvents{"web": {"up": 1}}, scaleTimeout, func(e *ct.Job) error {
			switch e.State {
			case "up":
				fmt.Println("=====> Default web formation scaled to 1")
			case "down", "crashed":
				return fmt.Errorf("Failed to scale web process type")
			}
			return nil
		})
		if err != nil {
			log.Fatalln(err.Error())
		}
	}
}
示例#10
0
func (s *CLISuite) TestSlugReleaseGarbageCollection(t *c.C) {
	client := s.controllerClient(t)

	// create app with gc.max_inactive_slug_releases=3
	maxInactiveSlugReleases := 3
	app := &ct.App{Meta: map[string]string{"gc.max_inactive_slug_releases": strconv.Itoa(maxInactiveSlugReleases)}}
	t.Assert(client.CreateApp(app), c.IsNil)

	// create an image artifact
	imageArtifact := &ct.Artifact{Type: host.ArtifactTypeDocker, URI: imageURIs["test-apps"]}
	t.Assert(client.CreateArtifact(imageArtifact), c.IsNil)

	// create 5 slug artifacts
	var slug bytes.Buffer
	gz := gzip.NewWriter(&slug)
	t.Assert(tar.NewWriter(gz).Close(), c.IsNil)
	t.Assert(gz.Close(), c.IsNil)
	slugs := []string{
		"http://blobstore.discoverd/1/slug.tgz",
		"http://blobstore.discoverd/2/slug.tgz",
		"http://blobstore.discoverd/3/slug.tgz",
		"http://blobstore.discoverd/4/slug.tgz",
		"http://blobstore.discoverd/5/slug.tgz",
	}
	slugArtifacts := make([]*ct.Artifact, len(slugs))
	for i, uri := range slugs {
		req, err := http.NewRequest("PUT", uri, bytes.NewReader(slug.Bytes()))
		t.Assert(err, c.IsNil)
		res, err := http.DefaultClient.Do(req)
		t.Assert(err, c.IsNil)
		res.Body.Close()
		t.Assert(res.StatusCode, c.Equals, http.StatusOK)
		artifact := &ct.Artifact{
			Type: host.ArtifactTypeFile,
			URI:  uri,
			Meta: map[string]string{"blobstore": "true"},
		}
		t.Assert(client.CreateArtifact(artifact), c.IsNil)
		slugArtifacts[i] = artifact
	}

	// create 6 releases, the second being scaled up and having the
	// same slug as the third (so prevents the slug being deleted)
	releases := make([]*ct.Release, 6)
	for i, r := range []struct {
		slug   *ct.Artifact
		active bool
	}{
		{slugArtifacts[0], false},
		{slugArtifacts[1], true},
		{slugArtifacts[1], false},
		{slugArtifacts[2], false},
		{slugArtifacts[3], false},
		{slugArtifacts[4], false},
	} {
		release := &ct.Release{
			ArtifactIDs: []string{imageArtifact.ID, r.slug.ID},
			Processes: map[string]ct.ProcessType{
				"app": {Args: []string{"/bin/pingserv"}, Ports: []ct.Port{{Proto: "tcp"}}},
			},
		}
		t.Assert(client.CreateRelease(release), c.IsNil)
		procs := map[string]int{"app": 0}
		if r.active {
			procs["app"] = 1
		}
		t.Assert(client.PutFormation(&ct.Formation{
			AppID:     app.ID,
			ReleaseID: release.ID,
			Processes: procs,
		}), c.IsNil)
		releases[i] = release
	}

	// scale the last release so we can deploy it
	lastRelease := releases[len(releases)-1]
	watcher, err := client.WatchJobEvents(app.ID, lastRelease.ID)
	t.Assert(err, c.IsNil)
	defer watcher.Close()
	t.Assert(client.PutFormation(&ct.Formation{
		AppID:     app.ID,
		ReleaseID: lastRelease.ID,
		Processes: map[string]int{"app": 1},
	}), c.IsNil)
	t.Assert(watcher.WaitFor(ct.JobEvents{"app": ct.JobUpEvents(1)}, scaleTimeout, nil), c.IsNil)
	t.Assert(client.SetAppRelease(app.ID, lastRelease.ID), c.IsNil)

	// subscribe to garbage collection events
	gcEvents := make(chan *ct.Event)
	stream, err := client.StreamEvents(ct.StreamEventsOptions{
		AppID:       app.ID,
		ObjectTypes: []ct.EventType{ct.EventTypeAppGarbageCollection},
	}, gcEvents)
	t.Assert(err, c.IsNil)
	defer stream.Close()

	// deploy a new release with the same slug as the last release
	timeoutCh := make(chan struct{})
	time.AfterFunc(5*time.Minute, func() { close(timeoutCh) })
	newRelease := *lastRelease
	newRelease.ID = ""
	t.Assert(client.CreateRelease(&newRelease), c.IsNil)
	t.Assert(client.DeployAppRelease(app.ID, newRelease.ID, timeoutCh), c.IsNil)

	// wait for garbage collection
	select {
	case event, ok := <-gcEvents:
		if !ok {
			t.Fatalf("event stream closed unexpectedly: %s", stream.Err())
		}
		var e ct.AppGarbageCollectionEvent
		t.Assert(json.Unmarshal(event.Data, &e), c.IsNil)
		if e.Error != "" {
			t.Fatalf("garbage collection failed: %s", e.Error)
		}
	case <-time.After(60 * time.Second):
		t.Fatal("timed out waiting for garbage collection")
	}

	// check we have 4 distinct slug releases (so 5 in total, only 3 are
	// inactive)
	list, err := client.AppReleaseList(app.ID)
	t.Assert(err, c.IsNil)
	t.Assert(list, c.HasLen, maxInactiveSlugReleases+2)
	distinctSlugs := make(map[string]struct{}, len(list))
	for _, release := range list {
		files := release.FileArtifactIDs()
		t.Assert(files, c.HasLen, 1)
		distinctSlugs[files[0]] = struct{}{}
	}
	t.Assert(distinctSlugs, c.HasLen, maxInactiveSlugReleases+1)

	// check the first and third releases got deleted, but the rest remain
	assertDeleted := func(release *ct.Release, deleted bool) {
		_, err := client.GetRelease(release.ID)
		if deleted {
			t.Assert(err, c.Equals, controller.ErrNotFound)
		} else {
			t.Assert(err, c.IsNil)
		}
	}
	assertDeleted(releases[0], true)
	assertDeleted(releases[1], false)
	assertDeleted(releases[2], true)
	assertDeleted(releases[3], false)
	assertDeleted(releases[4], false)
	assertDeleted(releases[5], false)
	assertDeleted(&newRelease, false)

	// check the first slug got deleted, but the rest remain
	s.assertURI(t, slugs[0], http.StatusNotFound)
	for i := 1; i < len(slugs); i++ {
		s.assertURI(t, slugs[i], http.StatusOK)
	}
}
示例#11
0
func main() {
	client, err := controller.NewClient("", os.Getenv("CONTROLLER_KEY"))
	if err != nil {
		log.Fatalln("Unable to connect to controller:", err)
	}

	usage := `
Usage: flynn-receiver <app> <rev> [-e <var>=<val>]... [-m <key>=<val>]...

Options:
	-e,--env <var>=<val>
	-m,--meta <key>=<val>
`[1:]
	args, _ := docopt.Parse(usage, nil, true, version.String(), false)

	appName := args.String["<app>"]
	env, err := parsePairs(args, "--env")
	if err != nil {
		log.Fatal(err)
	}
	meta, err := parsePairs(args, "--meta")
	if err != nil {
		log.Fatal(err)
	}

	app, err := client.GetApp(appName)
	if err == controller.ErrNotFound {
		log.Fatalf("Unknown app %q", appName)
	} else if err != nil {
		log.Fatalln("Error retrieving app:", err)
	}
	prevRelease, err := client.GetAppRelease(app.Name)
	if err == controller.ErrNotFound {
		prevRelease = &ct.Release{}
	} else if err != nil {
		log.Fatalln("Error getting current app release:", err)
	}

	fmt.Printf("-----> Building %s...\n", app.Name)

	jobEnv := make(map[string]string)
	jobEnv["BUILD_CACHE_URL"] = fmt.Sprintf("%s/%s-cache.tgz", blobstoreURL, app.ID)
	if buildpackURL, ok := env["BUILDPACK_URL"]; ok {
		jobEnv["BUILDPACK_URL"] = buildpackURL
	} else if buildpackURL, ok := prevRelease.Env["BUILDPACK_URL"]; ok {
		jobEnv["BUILDPACK_URL"] = buildpackURL
	}
	for _, k := range []string{"SSH_CLIENT_KEY", "SSH_CLIENT_HOSTS"} {
		if v := os.Getenv(k); v != "" {
			jobEnv[k] = v
		}
	}
	slugURL := fmt.Sprintf("%s/%s.tgz", blobstoreURL, random.UUID())

	cmd := exec.Job(exec.DockerImage(os.Getenv("SLUGBUILDER_IMAGE_URI")), &host.Job{
		Config: host.ContainerConfig{
			Cmd:        []string{slugURL},
			Env:        jobEnv,
			Stdin:      true,
			DisableLog: true,
		},
		Partition: "background",
		Metadata: map[string]string{
			"flynn-controller.app":      app.ID,
			"flynn-controller.app_name": app.Name,
			"flynn-controller.release":  prevRelease.ID,
			"flynn-controller.type":     "slugbuilder",
		},
	})
	var output bytes.Buffer
	cmd.Stdout = io.MultiWriter(os.Stdout, &output)
	cmd.Stderr = os.Stderr

	if len(prevRelease.Env) > 0 {
		stdin, err := cmd.StdinPipe()
		if err != nil {
			log.Fatalln(err)
		}
		go appendEnvDir(os.Stdin, stdin, prevRelease.Env)
	} else {
		cmd.Stdin = os.Stdin
	}

	if err := cmd.Run(); err != nil {
		log.Fatalln("Build failed:", err)
	}

	var types []string
	if match := typesPattern.FindSubmatch(output.Bytes()); match != nil {
		types = strings.Split(string(match[1]), ", ")
	}

	fmt.Printf("-----> Creating release...\n")

	artifact := &ct.Artifact{Type: "docker", URI: os.Getenv("SLUGRUNNER_IMAGE_URI")}
	if err := client.CreateArtifact(artifact); err != nil {
		log.Fatalln("Error creating artifact:", err)
	}

	release := &ct.Release{
		ArtifactID: artifact.ID,
		Env:        prevRelease.Env,
		Meta:       prevRelease.Meta,
	}
	if release.Meta == nil {
		release.Meta = make(map[string]string, len(meta))
	}
	if release.Env == nil {
		release.Env = make(map[string]string, len(env))
	}
	for k, v := range env {
		release.Env[k] = v
	}
	for k, v := range meta {
		release.Meta[k] = v
	}
	procs := make(map[string]ct.ProcessType)
	for _, t := range types {
		proc := prevRelease.Processes[t]
		proc.Cmd = []string{"start", t}
		if t == "web" || strings.HasSuffix(t, "-web") {
			proc.Service = app.Name + "-" + t
			proc.Ports = []ct.Port{{
				Port:  8080,
				Proto: "tcp",
				Service: &host.Service{
					Name:   proc.Service,
					Create: true,
					Check:  &host.HealthCheck{Type: "tcp"},
				},
			}}
		}
		procs[t] = proc
	}
	release.Processes = procs
	if release.Env == nil {
		release.Env = make(map[string]string)
	}
	release.Env["SLUG_URL"] = slugURL

	if err := client.CreateRelease(release); err != nil {
		log.Fatalln("Error creating release:", err)
	}
	if err := client.DeployAppRelease(app.Name, release.ID); err != nil {
		log.Fatalln("Error deploying app release:", err)
	}

	fmt.Println("=====> Application deployed")

	if needsDefaultScale(app.ID, prevRelease.ID, procs, client) {
		formation := &ct.Formation{
			AppID:     app.ID,
			ReleaseID: release.ID,
			Processes: map[string]int{"web": 1},
		}

		watcher, err := client.WatchJobEvents(app.ID, release.ID)
		if err != nil {
			log.Fatalln("Error streaming job events", err)
			return
		}
		defer watcher.Close()

		if err := client.PutFormation(formation); err != nil {
			log.Fatalln("Error putting formation:", err)
		}
		fmt.Println("=====> Waiting for web job to start...")

		err = watcher.WaitFor(ct.JobEvents{"web": ct.JobUpEvents(1)}, scaleTimeout, func(e *ct.Job) error {
			switch e.State {
			case ct.JobStateUp:
				fmt.Println("=====> Default web formation scaled to 1")
			case ct.JobStateDown:
				return fmt.Errorf("Failed to scale web process type")
			}
			return nil
		})
		if err != nil {
			log.Fatalln(err.Error())
		}
	}
}
示例#12
0
文件: main.go 项目: imjorge/flynn
func run(dir string, uid, gid int) error {
	client, err := controller.NewClient("", os.Getenv("CONTROLLER_KEY"))
	if err != nil {
		return err
	}

	// create a squashfs layer
	layer, err := ioutil.TempFile("", "squashfs-")
	if err != nil {
		return err
	}
	defer os.Remove(layer.Name())
	defer layer.Close()

	if out, err := exec.Command("mksquashfs", dir, layer.Name(), "-noappend").CombinedOutput(); err != nil {
		return fmt.Errorf("mksquashfs error: %s: %s", err, out)
	}

	h := sha512.New512_256()
	length, err := io.Copy(h, layer)
	if err != nil {
		return err
	}
	layerSHA := hex.EncodeToString(h.Sum(nil))

	// upload the layer to the blobstore
	if _, err := layer.Seek(0, os.SEEK_SET); err != nil {
		return err
	}
	layerURL := fmt.Sprintf("http://blobstore.discoverd/slugs/layers/%s.squashfs", layerSHA)
	if err := upload(layer, layerURL); err != nil {
		return err
	}

	manifest := &ct.ImageManifest{
		Type: ct.ImageManifestTypeV1,

		// TODO: parse Procfile / .release and add to manifest.Entrypoints
		Entrypoints: map[string]*ct.ImageEntrypoint{
			"_default": {
				Env: map[string]string{
					"PATH": "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
					"TERM": "xterm",
					"HOME": "/app",
				},
				WorkingDir: "/app",
				Args:       []string{"/runner/init", "bash"},
				Uid:        typeconv.Uint32Ptr(uint32(uid)),
				Gid:        typeconv.Uint32Ptr(uint32(gid)),
			},
		},

		Rootfs: []*ct.ImageRootfs{{
			Platform: ct.DefaultImagePlatform,
			Layers: []*ct.ImageLayer{{
				ID:     layerSHA,
				Type:   ct.ImageLayerTypeSquashfs,
				Length: length,
				Hashes: map[string]string{"sha512_256": layerSHA},
			}},
		}},
	}

	rawManifest := manifest.RawManifest()
	manifestURL := fmt.Sprintf("http://blobstore.discoverd/slugs/images/%s.json", manifest.ID())
	if err := upload(bytes.NewReader(rawManifest), manifestURL); err != nil {
		return err
	}

	artifact := &ct.Artifact{
		ID:   os.Getenv("SLUG_IMAGE_ID"),
		Type: ct.ArtifactTypeFlynn,
		URI:  manifestURL,
		Meta: map[string]string{
			"blobstore": "true",
		},
		RawManifest:      rawManifest,
		Hashes:           manifest.Hashes(),
		Size:             int64(len(rawManifest)),
		LayerURLTemplate: "http://blobstore.discoverd/slugs/layers/{id}.squashfs",
	}

	// create artifact
	if err := client.CreateArtifact(artifact); err != nil {
		return err
	}

	fmt.Printf("-----> Compiled slug size is %s\n", units.BytesSize(float64(length)))
	return nil
}
示例#13
0
文件: main.go 项目: imjorge/flynn
func run(url string) error {
	client, err := controller.NewClient("", os.Getenv("CONTROLLER_KEY"))
	if err != nil {
		return err
	}

	context, err := pinkerton.BuildContext("flynn", "/tmp/docker")
	if err != nil {
		return err
	}

	builder := &imagebuilder.Builder{
		Store:   &layerStore{},
		Context: context,
	}

	// pull the docker image
	ref, err := pinkerton.NewRef(url)
	if err != nil {
		return err
	}
	if _, err := context.PullDocker(url, ioutil.Discard); err != nil {
		return err
	}

	// create squashfs for each layer
	image, err := builder.Build(ref.DockerRef(), false)
	if err != nil {
		return err
	}

	// add the app name to the manifest to change its resulting ID so
	// pushing the same image to multiple apps leads to different artifacts
	// in the controller (and hence distinct artifact events)
	if image.Meta == nil {
		image.Meta = make(map[string]string, 1)
	}
	image.Meta["docker-receive.repository"] = ref.Name()

	// upload manifest to blobstore
	rawManifest := image.RawManifest()
	imageURL := fmt.Sprintf("http://blobstore.discoverd/docker-receive/images/%s.json", image.ID())
	if err := upload(bytes.NewReader(rawManifest), imageURL); err != nil {
		return err
	}

	// create the artifact
	artifact := &ct.Artifact{
		ID:   os.Getenv("ARTIFACT_ID"),
		Type: ct.ArtifactTypeFlynn,
		URI:  imageURL,
		Meta: map[string]string{
			"blobstore":                 "true",
			"docker-receive.uri":        url,
			"docker-receive.repository": ref.Name(),
			"docker-receive.digest":     ref.ID(),
		},
		RawManifest:      rawManifest,
		Hashes:           image.Hashes(),
		Size:             int64(len(rawManifest)),
		LayerURLTemplate: layerURLTemplate,
	}
	return client.CreateArtifact(artifact)
}
示例#14
0
func run() error {
	client, err := controller.NewClient("", os.Getenv("CONTROLLER_KEY"))
	if err != nil {
		return fmt.Errorf("Unable to connect to controller: %s", err)
	}

	usage := `
Usage: flynn-receiver <app> <rev> [-e <var>=<val>]... [-m <key>=<val>]...

Options:
	-e,--env <var>=<val>
	-m,--meta <key>=<val>
`[1:]
	args, _ := docopt.Parse(usage, nil, true, version.String(), false)

	appName := args.String["<app>"]
	env, err := parsePairs(args, "--env")
	if err != nil {
		return err
	}
	meta, err := parsePairs(args, "--meta")
	if err != nil {
		return err
	}

	slugBuilder, err := client.GetArtifact(os.Getenv("SLUGBUILDER_IMAGE_ID"))
	if err != nil {
		return fmt.Errorf("Error getting slugbuilder image: %s", err)
	}

	slugRunnerID := os.Getenv("SLUGRUNNER_IMAGE_ID")
	if _, err := client.GetArtifact(slugRunnerID); err != nil {
		return fmt.Errorf("Error getting slugrunner image: %s", err)
	}

	app, err := client.GetApp(appName)
	if err == controller.ErrNotFound {
		return fmt.Errorf("Unknown app %q", appName)
	} else if err != nil {
		return fmt.Errorf("Error retrieving app: %s", err)
	}
	prevRelease, err := client.GetAppRelease(app.Name)
	if err == controller.ErrNotFound {
		prevRelease = &ct.Release{}
	} else if err != nil {
		return fmt.Errorf("Error getting current app release: %s", err)
	}

	fmt.Printf("-----> Building %s...\n", app.Name)

	jobEnv := make(map[string]string)
	jobEnv["BUILD_CACHE_URL"] = fmt.Sprintf("%s/%s-cache.tgz", blobstoreURL, app.ID)
	if buildpackURL, ok := env["BUILDPACK_URL"]; ok {
		jobEnv["BUILDPACK_URL"] = buildpackURL
	} else if buildpackURL, ok := prevRelease.Env["BUILDPACK_URL"]; ok {
		jobEnv["BUILDPACK_URL"] = buildpackURL
	}
	for _, k := range []string{"SSH_CLIENT_KEY", "SSH_CLIENT_HOSTS"} {
		if v := os.Getenv(k); v != "" {
			jobEnv[k] = v
		}
	}
	slugURL := fmt.Sprintf("%s/%s/slug.tgz", blobstoreURL, random.UUID())

	job := &host.Job{
		Config: host.ContainerConfig{
			Args:       []string{"/tmp/builder/build.sh", slugURL},
			Env:        jobEnv,
			Stdin:      true,
			DisableLog: true,
		},
		Partition: "background",
		Metadata: map[string]string{
			"flynn-controller.app":      app.ID,
			"flynn-controller.app_name": app.Name,
			"flynn-controller.release":  prevRelease.ID,
			"flynn-controller.type":     "slugbuilder",
		},
	}
	if sb, ok := prevRelease.Processes["slugbuilder"]; ok {
		job.Resources = sb.Resources
	} else if rawLimit := os.Getenv("SLUGBUILDER_DEFAULT_MEMORY_LIMIT"); rawLimit != "" {
		if limit, err := resource.ParseLimit(resource.TypeMemory, rawLimit); err == nil {
			r := make(resource.Resources)
			resource.SetDefaults(&r)
			r[resource.TypeMemory] = resource.Spec{Limit: &limit, Request: &limit}
			job.Resources = r
		}
	}

	cmd := exec.Job(*slugBuilder.HostArtifact(), job)
	var output bytes.Buffer
	cmd.Stdout = io.MultiWriter(os.Stdout, &output)
	cmd.Stderr = os.Stderr

	if len(prevRelease.Env) > 0 {
		stdin, err := cmd.StdinPipe()
		if err != nil {
			return err
		}
		go func() {
			if err := appendEnvDir(os.Stdin, stdin, prevRelease.Env); err != nil {
				log.Fatalln("ERROR:", err)
			}
		}()
	} else {
		cmd.Stdin = os.Stdin
	}

	shutdown.BeforeExit(func() { cmd.Kill() })
	if err := cmd.Run(); err != nil {
		return fmt.Errorf("Build failed: %s", err)
	}

	var types []string
	if match := typesPattern.FindSubmatch(output.Bytes()); match != nil {
		types = strings.Split(string(match[1]), ", ")
	}

	fmt.Printf("-----> Creating release...\n")

	slugArtifact := &ct.Artifact{
		Type: host.ArtifactTypeFile,
		URI:  slugURL,
		Meta: map[string]string{"blobstore": "true"},
	}
	if err := client.CreateArtifact(slugArtifact); err != nil {
		return fmt.Errorf("Error creating slug artifact: %s", err)
	}

	release := &ct.Release{
		ArtifactIDs: []string{slugRunnerID, slugArtifact.ID},
		Env:         prevRelease.Env,
		Meta:        prevRelease.Meta,
	}
	if release.Meta == nil {
		release.Meta = make(map[string]string, len(meta))
	}
	if release.Env == nil {
		release.Env = make(map[string]string, len(env))
	}
	for k, v := range env {
		release.Env[k] = v
	}
	for k, v := range meta {
		release.Meta[k] = v
	}
	procs := make(map[string]ct.ProcessType)
	for _, t := range types {
		proc := prevRelease.Processes[t]
		proc.Args = []string{"/runner/init", "start", t}
		if t == "web" || strings.HasSuffix(t, "-web") {
			proc.Service = app.Name + "-" + t
			proc.Ports = []ct.Port{{
				Port:  8080,
				Proto: "tcp",
				Service: &host.Service{
					Name:   proc.Service,
					Create: true,
					Check:  &host.HealthCheck{Type: "tcp"},
				},
			}}
		}
		procs[t] = proc
	}
	release.Processes = procs

	if err := client.CreateRelease(release); err != nil {
		return fmt.Errorf("Error creating release: %s", err)
	}
	if err := client.DeployAppRelease(app.Name, release.ID, nil); err != nil {
		return fmt.Errorf("Error deploying app release: %s", err)
	}

	// if the app has a web job and has not been scaled before, create a
	// web=1 formation and wait for the "APPNAME-web" service to start
	// (whilst also watching job events so the deploy fails if the job
	// crashes)
	if needsDefaultScale(app.ID, prevRelease.ID, procs, client) {
		fmt.Println("=====> Scaling initial release to web=1")

		formation := &ct.Formation{
			AppID:     app.ID,
			ReleaseID: release.ID,
			Processes: map[string]int{"web": 1},
		}

		jobEvents := make(chan *ct.Job)
		jobStream, err := client.StreamJobEvents(app.ID, jobEvents)
		if err != nil {
			return fmt.Errorf("Error streaming job events: %s", err)
		}
		defer jobStream.Close()

		serviceEvents := make(chan *discoverd.Event)
		serviceStream, err := discoverd.NewService(app.Name + "-web").Watch(serviceEvents)
		if err != nil {
			return fmt.Errorf("Error streaming service events: %s", err)
		}
		defer serviceStream.Close()

		if err := client.PutFormation(formation); err != nil {
			return fmt.Errorf("Error putting formation: %s", err)
		}
		fmt.Println("-----> Waiting for initial web job to start...")

		err = func() error {
			for {
				select {
				case e, ok := <-serviceEvents:
					if !ok {
						return fmt.Errorf("Service stream closed unexpectedly: %s", serviceStream.Err())
					}
					if e.Kind == discoverd.EventKindUp && e.Instance.Meta["FLYNN_RELEASE_ID"] == release.ID {
						fmt.Println("=====> Initial web job started")
						return nil
					}
				case e, ok := <-jobEvents:
					if !ok {
						return fmt.Errorf("Job stream closed unexpectedly: %s", jobStream.Err())
					}
					if e.State == ct.JobStateDown {
						return errors.New("Initial web job failed to start")
					}
				case <-time.After(time.Duration(app.DeployTimeout) * time.Second):
					return errors.New("Timed out waiting for initial web job to start")
				}
			}
		}()
		if err != nil {
			fmt.Println("-----> WARN: scaling initial release down to web=0 due to error")
			formation.Processes["web"] = 0
			if err := client.PutFormation(formation); err != nil {
				// just print this error and return the original error
				fmt.Println("-----> WARN: could not scale the initial release down (it may continue to run):", err)
			}
			return err
		}
	}

	fmt.Println("=====> Application deployed")
	return nil
}