func main() {
appName := os.Args[2]
client, err := controller.NewClient("", os.Getenv("CONTROLLER_KEY"))
if err != nil {
log.Fatalln("Unable to connect to controller:", err)
}
app, err := client.GetApp(appName)
if err != nil {
log.Fatalln("Error retrieving app:", err)
}
fmt.Println(app.ID)
}
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")
}
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
}
func (s *ControllerSuite) TestAppDelete(t *c.C) {
client := s.controllerClient(t)
type test struct {
desc string
name string
create bool
useName bool
delErr error
}
for _, s := range []test{
{
desc: "delete existing app by name",
name: "app-delete-" + random.String(8),
create: true,
useName: true,
delErr: nil,
},
{
desc: "delete existing app by id",
name: "app-delete-" + random.String(8),
create: true,
useName: false,
delErr: nil,
},
{
desc: "delete existing UUID app by name",
name: random.UUID(),
create: true,
useName: true,
delErr: nil,
},
{
desc: "delete existing UUID app by id",
name: random.UUID(),
create: true,
useName: false,
delErr: nil,
},
{
desc: "delete non-existent app",
name: "i-dont-exist",
create: false,
useName: true,
delErr: controller.ErrNotFound,
},
{
desc: "delete non-existent UUID app",
name: random.UUID(),
create: false,
useName: true,
delErr: controller.ErrNotFound,
},
} {
debugf(t, "TestAppDelete: %s", s.desc)
app := &ct.App{Name: s.name}
if s.create {
t.Assert(client.CreateApp(app), c.IsNil)
}
appID := app.ID
if s.useName {
appID = app.Name
}
_, err := client.DeleteApp(appID)
t.Assert(err, c.Equals, s.delErr)
if s.delErr == nil {
_, err = client.GetApp(appID)
t.Assert(err, c.Equals, controller.ErrNotFound)
}
}
}
func run() error {
log := log15.New()
if *isTTY {
log.SetHandler(log15.StreamHandler(colorable.NewColorableStdout(), log15.TerminalFormat()))
}
var images map[string]string
if err := json.NewDecoder(os.Stdin).Decode(&images); err != nil {
log.Error("error decoding images", "err", err)
return err
}
instances, err := discoverd.GetInstances("flynn-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")
uris := make(map[string]string, len(updater.SystemApps)+2)
for _, name := range append(updater.SystemApps, "slugbuilder", "slugrunner") {
image := "flynn/" + name
if name == "gitreceive" {
image = "flynn/receiver"
} else if name == "postgres" {
image = "flynn/postgresql"
}
uri, ok := images[image]
if !ok {
err := fmt.Errorf("missing image: %s", image)
log.Error(err.Error())
return err
}
uris[name] = uri
}
slugbuilderURI = uris["slugbuilder"]
slugrunnerURI = uris["slugrunner"]
// deploy system apps in order first
for _, name := range updater.SystemApps {
log := log.New("name", name)
log.Info("starting deploy of system app")
app, err := client.GetApp(name)
if err != nil {
log.Error("error getting app", "err", err)
return err
}
if err := deployApp(client, app, uris[name], log); err != nil {
if e, ok := err.(errDeploySkipped); ok {
log.Info("skipped deploy of system app", "reason", e.reason)
continue
}
return err
}
log.Info("finished deploy of system app")
}
// deploy all other apps
apps, err := client.AppList()
if err != nil {
log.Error("error getting apps", "err", err)
return err
}
for _, app := range apps {
if app.System() {
continue
}
log := log.New("name", app.Name)
log.Info("starting deploy of app to update slugrunner")
if err := deployApp(client, app, slugrunnerURI, 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
}
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")
}
}
func runBootstrapBackup(manifest []byte, backupFile string, ch chan *bootstrap.StepInfo, cfg bootstrap.Config) error {
defer close(ch)
f, err := os.Open(backupFile)
if err != nil {
return fmt.Errorf("error opening backup file: %s", err)
}
defer f.Close()
tr := tar.NewReader(f)
getFile := func(name string) (io.Reader, error) {
rewound := false
var res io.Reader
for {
header, err := tr.Next()
if err == io.EOF && !rewound {
if _, err := f.Seek(0, os.SEEK_SET); err != nil {
return nil, fmt.Errorf("error seeking in backup file: %s", err)
}
rewound = true
tr = tar.NewReader(f)
continue
} else if err != nil {
return nil, fmt.Errorf("error finding %s in backup file: %s", name, err)
}
if path.Base(header.Name) != name {
continue
}
if strings.HasSuffix(name, ".gz") {
res, err = gzip.NewReader(tr)
if err != nil {
return nil, fmt.Errorf("error opening %s from backup file: %s", name, err)
}
} else {
res = tr
}
break
}
return res, nil
}
var data struct {
Discoverd, Flannel, Postgres, MariaDB, MongoDB, Controller *ct.ExpandedFormation
}
jsonData, err := getFile("flynn.json")
if err != nil {
return err
}
if jsonData == nil {
return fmt.Errorf("did not file flynn.json in backup file")
}
if err := json.NewDecoder(jsonData).Decode(&data); err != nil {
return fmt.Errorf("error decoding backup data: %s", err)
}
db, err := getFile("postgres.sql.gz")
if err != nil {
return err
}
if db == nil {
return fmt.Errorf("did not find postgres.sql.gz in backup file")
}
// add buffer to the end of the SQL import containing commands that rewrite data in the controller db
sqlBuf := &bytes.Buffer{}
db = io.MultiReader(db, sqlBuf)
sqlBuf.WriteString(fmt.Sprintf("\\connect %s\n", data.Controller.Release.Env["PGDATABASE"]))
sqlBuf.WriteString(`
CREATE FUNCTION pg_temp.json_object_update_key(
"json" jsonb,
"key_to_set" TEXT,
"value_to_set" TEXT
)
RETURNS jsonb
LANGUAGE sql
IMMUTABLE
STRICT
AS $function$
SELECT ('{' || string_agg(to_json("key") || ':' || "value", ',') || '}')::jsonb
FROM (SELECT *
FROM json_each("json"::json)
WHERE "key" <> "key_to_set"
UNION ALL
SELECT "key_to_set", to_json("value_to_set")) AS "fields"
$function$;
`)
type manifestStep struct {
ID string
Artifacts []*ct.Artifact
Artifact *ct.Artifact
Release struct {
Env map[string]string
Processes map[string]ct.ProcessType
}
}
var manifestSteps []*manifestStep
if err := json.Unmarshal(manifest, &manifestSteps); err != nil {
return fmt.Errorf("error decoding manifest json: %s", err)
}
manifestStepMap := make(map[string]bootstrap.Step, len(manifestSteps))
steps, err := bootstrap.UnmarshalManifest(manifest, nil)
if err != nil {
return fmt.Errorf("error decoding manifest json: %s", err)
}
for _, step := range steps {
manifestStepMap[step.StepMeta.ID] = step
}
artifacts := make(map[string]*ct.Artifact)
updateProcArgs := func(f *ct.ExpandedFormation, step *manifestStep) {
for typ, proc := range step.Release.Processes {
p := f.Release.Processes[typ]
p.Args = proc.Args
f.Release.Processes[typ] = p
}
}
updateVolumes := func(f *ct.ExpandedFormation, step *manifestStep) {
for typ, proc := range step.Release.Processes {
p := f.Release.Processes[typ]
p.Volumes = proc.Volumes
f.Release.Processes[typ] = p
}
}
for _, step := range manifestSteps {
switch step.ID {
case "discoverd":
updateVolumes(data.Discoverd, step)
case "postgres":
updateProcArgs(data.Postgres, step)
updateVolumes(data.Postgres, step)
case "controller":
updateProcArgs(data.Controller, step)
case "mariadb":
if data.MariaDB != nil {
updateProcArgs(data.MariaDB, step)
updateVolumes(data.MariaDB, step)
}
case "mongodb":
if data.MongoDB != nil {
updateProcArgs(data.MongoDB, step)
updateVolumes(data.MongoDB, step)
}
}
if step.Artifact != nil {
artifacts[step.ID] = step.Artifact
} else if len(step.Artifacts) > 0 {
artifacts[step.ID] = step.Artifacts[0]
}
}
data.Discoverd.Artifacts = []*ct.Artifact{artifacts["discoverd"]}
data.Discoverd.Release.Env["DISCOVERD_PEERS"] = "{{ range $ip := .SortedHostIPs }}{{ $ip }}:1111,{{ end }}"
data.Postgres.Artifacts = []*ct.Artifact{artifacts["postgres"]}
data.Flannel.Artifacts = []*ct.Artifact{artifacts["flannel"]}
data.Controller.Artifacts = []*ct.Artifact{artifacts["controller"]}
if data.MariaDB != nil {
data.MariaDB.Artifacts = []*ct.Artifact{artifacts["mariadb"]}
}
if data.MongoDB != nil {
data.MongoDB.Artifacts = []*ct.Artifact{artifacts["mongodb"]}
}
// set TELEMETRY_CLUSTER_ID
telemetryClusterID := random.UUID()
sqlBuf.WriteString(fmt.Sprintf(`
UPDATE releases SET env = jsonb_set(env, '{TELEMETRY_CLUSTER_ID}', '%q')
WHERE release_id = (SELECT release_id FROM apps WHERE name = 'controller');
`, telemetryClusterID))
data.Controller.Release.Env["TELEMETRY_CLUSTER_ID"] = telemetryClusterID
// set TELEMETRY_BOOTSTRAP_ID if unset
if data.Controller.Release.Env["TELEMETRY_BOOTSTRAP_ID"] == "" {
sqlBuf.WriteString(fmt.Sprintf(`
UPDATE releases SET env = jsonb_set(env, '{TELEMETRY_BOOTSTRAP_ID}', '%q')
WHERE release_id = (SELECT release_id FROM apps WHERE name = 'controller');
`, telemetryClusterID))
data.Controller.Release.Env["TELEMETRY_BOOTSTRAP_ID"] = telemetryClusterID
}
step := func(id, name string, action bootstrap.Action) bootstrap.Step {
if ra, ok := action.(*bootstrap.RunAppAction); ok {
ra.ID = id
}
return bootstrap.Step{
StepMeta: bootstrap.StepMeta{ID: id, Action: name},
Action: action,
}
}
// ensure flannel has NETWORK set if required
if network := os.Getenv("FLANNEL_NETWORK"); network != "" {
data.Flannel.Release.Env["NETWORK"] = network
sqlBuf.WriteString(fmt.Sprintf(`
UPDATE releases SET env = pg_temp.json_object_update_key(env, 'NETWORK', '%s')
WHERE release_id = (SELECT release_id FROM apps WHERE name = 'flannel');
`, network))
}
// ensure controller / gitreceive have tmp volumes
sqlBuf.WriteString(`
UPDATE releases SET processes = jsonb_set(processes, '{web,volumes}', '[{"path": "/tmp", "delete_on_stop": true}]')
WHERE release_id IN (SELECT release_id FROM apps WHERE name = 'controller');
UPDATE releases SET processes = jsonb_set(processes, '{app,volumes}', '[{"path": "/tmp", "delete_on_stop": true}]')
WHERE release_id IN (SELECT release_id FROM apps WHERE name = 'gitreceive');
`)
// update the SINGLETON environment variable for database appliances
// (which includes updating legacy appliances which had SINGLETON set
// on the database type rather than the release)
singleton := strconv.FormatBool(cfg.Singleton)
data.Postgres.Release.Env["SINGLETON"] = singleton
sqlBuf.WriteString(fmt.Sprintf(`
UPDATE releases SET env = jsonb_set(env, '{SINGLETON}', '%q')
WHERE release_id IN (SELECT release_id FROM apps WHERE name IN ('postgres', 'mariadb', 'mongodb'));
`, singleton))
if data.MariaDB != nil {
data.MariaDB.Release.Env["SINGLETON"] = singleton
delete(data.MariaDB.Release.Processes["mariadb"].Env, "SINGLETON")
sqlBuf.WriteString(`
UPDATE releases SET processes = jsonb_set(processes, '{mariadb,env}', (processes #> '{mariadb,env}')::jsonb - 'SINGLETON')
WHERE release_id IN (SELECT release_id FROM apps WHERE name = 'mariadb');
`)
}
if data.MongoDB != nil {
data.MongoDB.Release.Env["SINGLETON"] = singleton
delete(data.MongoDB.Release.Processes["mongodb"].Env, "SINGLETON")
sqlBuf.WriteString(`
UPDATE releases SET processes = jsonb_set(processes, '{mongodb,env}', (processes #> '{mongodb,env}')::jsonb - 'SINGLETON')
WHERE release_id IN (SELECT release_id FROM apps WHERE name = 'mongodb');
`)
}
// modify app scale based on whether we are booting
// a singleton or HA cluster
var scale map[string]map[string]int
if cfg.Singleton {
scale = map[string]map[string]int{
"postgres": {"postgres": 1, "web": 1},
"mariadb": {"web": 1},
"mongodb": {"web": 1},
"controller": {"web": 1, "worker": 1},
"redis": {"web": 1},
"blobstore": {"web": 1},
"gitreceive": {"app": 1},
"docker-receive": {"app": 1},
"logaggregator": {"app": 1},
"dashboard": {"web": 1},
"status": {"web": 1},
}
data.Postgres.Processes["postgres"] = 1
data.Postgres.Processes["web"] = 1
if data.MariaDB != nil {
data.MariaDB.Processes["mariadb"] = 1
data.MariaDB.Processes["web"] = 1
}
if data.MongoDB != nil {
data.MongoDB.Processes["mongodb"] = 1
data.MongoDB.Processes["web"] = 1
}
} else {
scale = map[string]map[string]int{
"postgres": {"postgres": 3, "web": 2},
"mariadb": {"web": 2},
"mongodb": {"web": 2},
"controller": {"web": 2, "worker": 2},
"redis": {"web": 2},
"blobstore": {"web": 2},
"gitreceive": {"app": 2},
"docker-receive": {"app": 2},
"logaggregator": {"app": 2},
"dashboard": {"web": 2},
"status": {"web": 2},
}
data.Postgres.Processes["postgres"] = 3
data.Postgres.Processes["web"] = 2
if data.MariaDB != nil {
data.MariaDB.Processes["mariadb"] = 3
data.MariaDB.Processes["web"] = 2
}
if data.MongoDB != nil {
data.MongoDB.Processes["mongodb"] = 3
data.MongoDB.Processes["web"] = 2
}
}
for app, procs := range scale {
for typ, count := range procs {
sqlBuf.WriteString(fmt.Sprintf(`
UPDATE formations SET processes = jsonb_set(processes, '{%s}', '%d')
WHERE release_id = (SELECT release_id FROM apps WHERE name = '%s');
`, typ, count, app))
}
}
// start discoverd/flannel/postgres
systemSteps := bootstrap.Manifest{
step("discoverd", "run-app", &bootstrap.RunAppAction{
ExpandedFormation: data.Discoverd,
}),
step("flannel", "run-app", &bootstrap.RunAppAction{
ExpandedFormation: data.Flannel,
}),
step("wait-hosts", "wait-hosts", &bootstrap.WaitHostsAction{}),
step("postgres", "run-app", &bootstrap.RunAppAction{
ExpandedFormation: data.Postgres,
}),
step("postgres-wait", "sirenia-wait", &bootstrap.SireniaWaitAction{
Service: "postgres",
}),
}
state, err := systemSteps.Run(ch, cfg)
if err != nil {
return err
}
// set DISCOVERD_PEERS in release
sqlBuf.WriteString(fmt.Sprintf(`
UPDATE releases SET env = pg_temp.json_object_update_key(env, 'DISCOVERD_PEERS', '%s')
WHERE release_id = (SELECT release_id FROM apps WHERE name = 'discoverd');
`, state.StepData["discoverd"].(*bootstrap.RunAppState).Release.Env["DISCOVERD_PEERS"]))
// make sure STATUS_KEY has the correct value in the dashboard release
sqlBuf.WriteString(`
UPDATE releases SET env = jsonb_set(env, '{STATUS_KEY}', (
SELECT env->'AUTH_KEY' FROM releases
WHERE release_id = (SELECT release_id FROM apps WHERE name = 'status')
))
WHERE release_id = (SELECT release_id FROM apps WHERE name = 'dashboard');
`)
// load data into postgres
cmd := exec.JobUsingHost(state.Hosts[0], artifacts["postgres"], nil)
cmd.Args = []string{"psql"}
cmd.Env = map[string]string{
"PGHOST": "leader.postgres.discoverd",
"PGUSER": "******",
"PGDATABASE": "postgres",
"PGPASSWORD": data.Postgres.Release.Env["PGPASSWORD"],
}
cmd.Stdin = db
meta := bootstrap.StepMeta{ID: "restore", Action: "restore-postgres"}
ch <- &bootstrap.StepInfo{StepMeta: meta, State: "start", Timestamp: time.Now().UTC()}
out, err := cmd.CombinedOutput()
if os.Getenv("DEBUG") != "" {
fmt.Println(string(out))
}
if err != nil {
ch <- &bootstrap.StepInfo{
StepMeta: meta,
State: "error",
Error: fmt.Sprintf("error running psql restore: %s - %q", err, string(out)),
Err: err,
Timestamp: time.Now().UTC(),
}
return err
}
ch <- &bootstrap.StepInfo{StepMeta: meta, State: "done", Timestamp: time.Now().UTC()}
// start controller API
data.Controller.Processes = map[string]int{"web": 1}
_, err = bootstrap.Manifest{
step("controller", "run-app", &bootstrap.RunAppAction{
ExpandedFormation: data.Controller,
}),
}.RunWithState(ch, state)
// wait for controller to come up
meta = bootstrap.StepMeta{ID: "wait-controller", Action: "wait-controller"}
ch <- &bootstrap.StepInfo{StepMeta: meta, State: "start", Timestamp: time.Now().UTC()}
controllerInstances, err := discoverd.GetInstances("controller", 30*time.Second)
if err != nil {
return fmt.Errorf("error getting controller instance: %s", err)
}
controllerKey := data.Controller.Release.Env["AUTH_KEY"]
client, err := controller.NewClient("http://"+controllerInstances[0].Addr, controllerKey)
if err != nil {
return err
}
// start mariadb and load data if it was present in the backup.
mysqldb, err := getFile("mysql.sql.gz")
if err == nil && data.MariaDB != nil {
_, err = bootstrap.Manifest{
step("mariadb", "run-app", &bootstrap.RunAppAction{
ExpandedFormation: data.MariaDB,
}),
step("mariadb-wait", "sirenia-wait", &bootstrap.SireniaWaitAction{
Service: "mariadb",
}),
}.RunWithState(ch, state)
if err != nil {
return err
}
// ensure the formation is correct in the database
if err := client.PutFormation(data.MariaDB.Formation()); err != nil {
return fmt.Errorf("error updating mariadb formation: %s", err)
}
cmd = exec.JobUsingHost(state.Hosts[0], artifacts["mariadb"], nil)
cmd.Args = []string{"mysql", "-u", "flynn", "-h", "leader.mariadb.discoverd"}
cmd.Env = map[string]string{
"MYSQL_PWD": data.MariaDB.Release.Env["MYSQL_PWD"],
}
cmd.Stdin = mysqldb
meta = bootstrap.StepMeta{ID: "restore", Action: "restore-mariadb"}
ch <- &bootstrap.StepInfo{StepMeta: meta, State: "start", Timestamp: time.Now().UTC()}
out, err = cmd.CombinedOutput()
if os.Getenv("DEBUG") != "" {
fmt.Println(string(out))
}
if err != nil {
ch <- &bootstrap.StepInfo{
StepMeta: meta,
State: "error",
Error: fmt.Sprintf("error running mysql restore: %s - %q", err, string(out)),
Err: err,
Timestamp: time.Now().UTC(),
}
return err
}
ch <- &bootstrap.StepInfo{StepMeta: meta, State: "done", Timestamp: time.Now().UTC()}
}
// start mongodb and load data if it was present in the backup.
mongodb, err := getFile("mongodb.archive.gz")
if err == nil && data.MongoDB != nil {
_, err = bootstrap.Manifest{
step("mongodb", "run-app", &bootstrap.RunAppAction{
ExpandedFormation: data.MongoDB,
}),
step("mongodb-wait", "sirenia-wait", &bootstrap.SireniaWaitAction{
Service: "mongodb",
}),
}.RunWithState(ch, state)
if err != nil {
return err
}
// ensure the formation is correct in the database
if err := client.PutFormation(data.MongoDB.Formation()); err != nil {
return fmt.Errorf("error updating mongodb formation: %s", err)
}
cmd = exec.JobUsingHost(state.Hosts[0], artifacts["mongodb"], nil)
cmd.Args = []string{"mongorestore", "-h", "leader.mongodb.discoverd", "-u", "flynn", "-p", data.MongoDB.Release.Env["MONGO_PWD"], "--archive"}
cmd.Stdin = mongodb
meta = bootstrap.StepMeta{ID: "restore", Action: "restore-mongodb"}
ch <- &bootstrap.StepInfo{StepMeta: meta, State: "start", Timestamp: time.Now().UTC()}
out, err = cmd.CombinedOutput()
if os.Getenv("DEBUG") != "" {
fmt.Println(string(out))
}
if err != nil {
ch <- &bootstrap.StepInfo{
StepMeta: meta,
State: "error",
Error: fmt.Sprintf("error running mongodb restore: %s - %q", err, string(out)),
Err: err,
Timestamp: time.Now().UTC(),
}
return err
}
ch <- &bootstrap.StepInfo{StepMeta: meta, State: "done", Timestamp: time.Now().UTC()}
}
// get blobstore config
blobstoreRelease, err := client.GetAppRelease("blobstore")
if err != nil {
return fmt.Errorf("error getting blobstore release: %s", err)
}
blobstoreFormation, err := client.GetExpandedFormation("blobstore", blobstoreRelease.ID)
if err != nil {
return fmt.Errorf("error getting blobstore expanded formation: %s", err)
}
state.SetControllerKey(controllerKey)
ch <- &bootstrap.StepInfo{StepMeta: meta, State: "done", Timestamp: time.Now().UTC()}
// start the blobstore
blobstoreFormation.Artifacts = []*ct.Artifact{artifacts["blobstore"]}
_, err = bootstrap.Manifest{
step("blobstore", "run-app", &bootstrap.RunAppAction{
ExpandedFormation: blobstoreFormation,
}),
step("blobstore-wait", "wait", &bootstrap.WaitAction{
URL: "http://blobstore.discoverd",
Status: 200,
}),
}.RunWithState(ch, state)
if err != nil {
return err
}
// now that the controller and blobstore are up and controller
// migrations have run (so we know artifacts have a manifest column),
// migrate all artifacts to Flynn images
jsonb := func(v interface{}) []byte {
data, _ := json.Marshal(v)
return data
}
sqlBuf.Reset()
for _, step := range manifestSteps {
artifact, ok := artifacts[step.ID]
if !ok {
continue
}
// update current artifact in database for service
sqlBuf.WriteString(fmt.Sprintf(`
UPDATE artifacts SET uri = '%s', type = 'flynn', manifest = '%s', hashes = '%s', size = %d, layer_url_template = '%s', meta = '%s' WHERE artifact_id = (
SELECT artifact_id FROM release_artifacts WHERE release_id = (
SELECT release_id FROM apps WHERE name = '%s'
)
);`, artifact.URI, jsonb(&artifact.RawManifest), jsonb(artifact.Hashes), artifact.Size, artifact.LayerURLTemplate, jsonb(artifact.Meta), step.ID))
}
// create the slugbuilder artifact if gitreceive still references it by
// URI (in which case there is no slugbuilder artifact in the database)
slugBuilder := artifacts["slugbuilder-image"]
sqlBuf.WriteString(fmt.Sprintf(`
DO $$
BEGIN
IF (SELECT env->>'SLUGBUILDER_IMAGE_ID' FROM releases WHERE release_id = (SELECT release_id FROM apps WHERE name = 'gitreceive')) IS NULL THEN
INSERT INTO artifacts (artifact_id, type, uri, manifest, hashes, size, layer_url_template, meta) VALUES ('%s', 'flynn', '%s', '%s', '%s', %d, '%s', '%s');
END IF;
END;
$$;`, random.UUID(), slugBuilder.URI, jsonb(&slugBuilder.RawManifest), jsonb(slugBuilder.Hashes), slugBuilder.Size, slugBuilder.LayerURLTemplate, jsonb(slugBuilder.Meta)))
// create the slugrunner artifact if it doesn't exist (which can be the
// case if no apps were deployed with git push in older clusters where
// it was created lazily)
slugRunner := artifacts["slugrunner-image"]
sqlBuf.WriteString(fmt.Sprintf(`
DO $$
BEGIN
IF (SELECT env->>'SLUGRUNNER_IMAGE_ID' FROM releases WHERE release_id = (SELECT release_id FROM apps WHERE name = 'gitreceive')) IS NULL THEN
IF NOT EXISTS (SELECT 1 FROM artifacts WHERE uri = (SELECT env->>'SLUGRUNNER_IMAGE_URI' FROM releases WHERE release_id = (SELECT release_id FROM apps WHERE name = 'gitreceive'))) THEN
INSERT INTO artifacts (artifact_id, type, uri, manifest, hashes, size, layer_url_template, meta) VALUES ('%s', 'flynn', '%s', '%s', '%s', %d, '%s', '%s');
END IF;
END IF;
END;
$$;`, random.UUID(), slugRunner.URI, jsonb(&slugRunner.RawManifest), jsonb(slugRunner.Hashes), slugRunner.Size, slugRunner.LayerURLTemplate, jsonb(slugRunner.Meta)))
// update slug artifacts currently being referenced by gitreceive
// (which will also update all current user releases to use the
// latest slugrunner)
for _, name := range []string{"slugbuilder", "slugrunner"} {
artifact := artifacts[name+"-image"]
sqlBuf.WriteString(fmt.Sprintf(`
UPDATE artifacts SET uri = '%[1]s', type = 'flynn', manifest = '%[2]s', hashes = '%[3]s', size = %[4]d, layer_url_template = '%[5]s', meta = '%[6]s'
WHERE artifact_id = (SELECT (env->>'%[7]s_IMAGE_ID')::uuid FROM releases WHERE release_id = (SELECT release_id FROM apps WHERE name = 'gitreceive'))
OR uri = (SELECT env->>'%[7]s_IMAGE_URI' FROM releases WHERE release_id = (SELECT release_id FROM apps WHERE name = 'gitreceive'));`,
artifact.URI, jsonb(&artifact.RawManifest), jsonb(artifact.Hashes), artifact.Size, artifact.LayerURLTemplate, jsonb(artifact.Meta), strings.ToUpper(name)))
}
// update the URI of redis artifacts currently being referenced by
// the redis app (which will also update all current redis resources
// to use the latest redis image)
redisImage := artifacts["redis-image"]
sqlBuf.WriteString(fmt.Sprintf(`
UPDATE artifacts SET uri = '%s', type = 'flynn', manifest = '%s', hashes = '%s', size = %d, layer_url_template = '%s', meta = '%s'
WHERE artifact_id = (SELECT (env->>'REDIS_IMAGE_ID')::uuid FROM releases WHERE release_id = (SELECT release_id FROM apps WHERE name = 'redis'))
OR uri = (SELECT env->>'REDIS_IMAGE_URI' FROM releases WHERE release_id = (SELECT release_id FROM apps WHERE name = 'redis'));`,
redisImage.URI, jsonb(&redisImage.RawManifest), jsonb(redisImage.Hashes), redisImage.Size, redisImage.LayerURLTemplate, jsonb(redisImage.Meta)))
// ensure the image ID environment variables are set for legacy apps
// which use image URI variables
for _, name := range []string{"redis", "slugbuilder", "slugrunner"} {
sqlBuf.WriteString(fmt.Sprintf(`
UPDATE releases SET env = jsonb_set(env, '{%[1]s_IMAGE_ID}', ('"' || (SELECT artifact_id::text FROM artifacts WHERE uri = '%[2]s') || '"')::jsonb, true)
WHERE env->>'%[1]s_IMAGE_URI' IS NOT NULL;`,
strings.ToUpper(name), artifacts[name+"-image"].URI))
}
// run the above artifact migration SQL against the controller database
cmd = exec.JobUsingHost(state.Hosts[0], artifacts["postgres"], nil)
cmd.Args = []string{"psql", "--echo-queries"}
cmd.Env = map[string]string{
"PGHOST": "leader.postgres.discoverd",
"PGUSER": data.Controller.Release.Env["PGUSER"],
"PGDATABASE": data.Controller.Release.Env["PGDATABASE"],
"PGPASSWORD": data.Controller.Release.Env["PGPASSWORD"],
}
cmd.Stdin = sqlBuf
meta = bootstrap.StepMeta{ID: "migrate-artifacts", Action: "migrate-artifacts"}
ch <- &bootstrap.StepInfo{StepMeta: meta, State: "start", Timestamp: time.Now().UTC()}
out, err = cmd.CombinedOutput()
if os.Getenv("DEBUG") != "" {
fmt.Println(string(out))
}
if err != nil {
ch <- &bootstrap.StepInfo{
StepMeta: meta,
State: "error",
Error: fmt.Sprintf("error migrating artifacts: %s - %q", err, string(out)),
Err: err,
Timestamp: time.Now().UTC(),
}
return err
}
// determine if there are any slugs or docker images which need to be
// converted to Flynn images
migrateSlugs := false
migrateDocker := false
artifactList, err := client.ArtifactList()
if err != nil {
return fmt.Errorf("error listing artifacts: %s", err)
}
for _, artifact := range artifactList {
if artifact.Type == ct.DeprecatedArtifactTypeFile {
migrateSlugs = true
}
if artifact.Type == ct.DeprecatedArtifactTypeDocker && artifact.Meta["docker-receive.repository"] != "" {
migrateDocker = true
}
if migrateSlugs && migrateDocker {
break
}
}
runMigrator := func(cmd *exec.Cmd) error {
out, err := cmd.StdoutPipe()
if err != nil {
return err
}
done := make(chan struct{})
go func() {
defer close(done)
s := bufio.NewScanner(out)
for s.Scan() {
ch <- &bootstrap.StepInfo{
StepMeta: meta,
State: "info",
StepData: s.Text(),
Timestamp: time.Now().UTC(),
}
}
}()
err = cmd.Run()
select {
case <-done:
case <-time.After(time.Second):
}
return err
}
if migrateSlugs {
cmd = exec.JobUsingHost(state.Hosts[0], artifacts["slugbuilder-image"], nil)
cmd.Args = []string{"/bin/slug-migrator"}
cmd.Env = map[string]string{
"CONTROLLER_KEY": data.Controller.Release.Env["AUTH_KEY"],
"FLYNN_POSTGRES": data.Controller.Release.Env["FLYNN_POSTGRES"],
"PGHOST": "leader.postgres.discoverd",
"PGUSER": data.Controller.Release.Env["PGUSER"],
"PGDATABASE": data.Controller.Release.Env["PGDATABASE"],
"PGPASSWORD": data.Controller.Release.Env["PGPASSWORD"],
}
if err := runMigrator(cmd); err != nil {
ch <- &bootstrap.StepInfo{
StepMeta: meta,
State: "error",
Error: fmt.Sprintf("error migrating slugs: %s", err),
Err: err,
Timestamp: time.Now().UTC(),
}
return err
}
}
if migrateDocker {
// start docker-receive
dockerRelease, err := client.GetAppRelease("docker-receive")
if err != nil {
return fmt.Errorf("error getting docker-receive release: %s", err)
}
dockerFormation, err := client.GetExpandedFormation("docker-receive", dockerRelease.ID)
if err != nil {
return fmt.Errorf("error getting docker-receive expanded formation: %s", err)
}
dockerFormation.Artifacts = []*ct.Artifact{artifacts["docker-receive"]}
_, err = bootstrap.Manifest{
step("docker-receive", "run-app", &bootstrap.RunAppAction{
ExpandedFormation: dockerFormation,
}),
step("docker-receive-wait", "wait", &bootstrap.WaitAction{
URL: "http://docker-receive.discoverd/v2/",
Status: 401,
}),
}.RunWithState(ch, state)
if err != nil {
return err
}
// run the docker image migrator
cmd = exec.JobUsingHost(state.Hosts[0], artifacts["docker-receive"], nil)
cmd.Args = []string{"/bin/docker-migrator"}
cmd.Env = map[string]string{
"CONTROLLER_KEY": data.Controller.Release.Env["AUTH_KEY"],
"FLYNN_POSTGRES": data.Controller.Release.Env["FLYNN_POSTGRES"],
"PGHOST": "leader.postgres.discoverd",
"PGUSER": data.Controller.Release.Env["PGUSER"],
"PGDATABASE": data.Controller.Release.Env["PGDATABASE"],
"PGPASSWORD": data.Controller.Release.Env["PGPASSWORD"],
}
cmd.Volumes = []*ct.VolumeReq{{Path: "/tmp", DeleteOnStop: true}}
if err := runMigrator(cmd); err != nil {
ch <- &bootstrap.StepInfo{
StepMeta: meta,
State: "error",
Error: fmt.Sprintf("error migrating Docker images: %s", err),
Err: err,
Timestamp: time.Now().UTC(),
}
return err
}
}
ch <- &bootstrap.StepInfo{StepMeta: meta, State: "done", Timestamp: time.Now().UTC()}
// start scheduler and enable cluster monitor
data.Controller.Processes = map[string]int{"scheduler": 1}
// only start one scheduler instance
schedulerProcess := data.Controller.Release.Processes["scheduler"]
schedulerProcess.Omni = false
data.Controller.Release.Processes["scheduler"] = schedulerProcess
_, err = bootstrap.Manifest{
step("controller-scheduler", "run-app", &bootstrap.RunAppAction{
ExpandedFormation: data.Controller,
}),
step("status", "status-check", &bootstrap.StatusCheckAction{
URL: "http://status-web.discoverd",
Timeout: 600,
}),
step("cluster-monitor", "cluster-monitor", &bootstrap.ClusterMonitorAction{
Enabled: true,
}),
}.RunWithState(ch, state)
if err != nil {
return err
}
// mariadb and mongodb steps require the controller key
state.StepData["controller-key"] = &bootstrap.RandomData{controllerKey}
// deploy mariadb if it wasn't restored from the backup
if data.MariaDB == nil {
steps := bootstrap.Manifest{
manifestStepMap["mariadb-password"],
manifestStepMap["mariadb"],
manifestStepMap["add-mysql-provider"],
manifestStepMap["mariadb-wait"],
}
if _, err := steps.RunWithState(ch, state); err != nil {
return fmt.Errorf("error deploying mariadb: %s", err)
}
}
// deploy mongodb if it wasn't restored from the backup
if data.MongoDB == nil {
steps := bootstrap.Manifest{
manifestStepMap["mongodb-password"],
manifestStepMap["mongodb"],
manifestStepMap["add-mongodb-provider"],
manifestStepMap["mongodb-wait"],
}
if _, err := steps.RunWithState(ch, state); err != nil {
return fmt.Errorf("error deploying mongodb: %s", err)
}
}
// deploy docker-receive if it wasn't in the backup
if _, err := client.GetApp("docker-receive"); err == controller.ErrNotFound {
routes, err := client.RouteList("controller")
if len(routes) == 0 {
err = errors.New("no routes found")
}
if err != nil {
return fmt.Errorf("error listing controller routes: %s", err)
}
for _, r := range routes {
if r.Domain == fmt.Sprintf("controller.%s", data.Controller.Release.Env["DEFAULT_ROUTE_DOMAIN"]) {
state.StepData["controller-cert"] = &tlscert.Cert{
Cert: r.Certificate.Cert,
PrivateKey: r.Certificate.Key,
}
break
}
}
steps := bootstrap.Manifest{
manifestStepMap["docker-receive-secret"],
manifestStepMap["docker-receive"],
manifestStepMap["docker-receive-route"],
manifestStepMap["docker-receive-wait"],
}
if _, err := steps.RunWithState(ch, state); err != nil {
return fmt.Errorf("error deploying docker-receive: %s", err)
}
}
return nil
}
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")
}
}
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())
}
}
}
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())
}
}
}
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)
slugImageID := random.UUID()
jobEnv := map[string]string{
"BUILD_CACHE_URL": fmt.Sprintf("%s/%s-cache.tgz", blobstoreURL, app.ID),
"CONTROLLER_KEY": os.Getenv("CONTROLLER_KEY"),
"SLUG_IMAGE_ID": slugImageID,
}
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
}
}
job := &host.Job{
Config: host.ContainerConfig{
Args: []string{"/builder/build.sh"},
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",
},
Resources: resource.Defaults(),
}
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 {
job.Resources[resource.TypeMemory] = resource.Spec{Limit: &limit, Request: &limit}
}
}
cmd := exec.Job(slugBuilder, job)
cmd.Volumes = []*ct.VolumeReq{{Path: "/tmp", DeleteOnStop: true}}
var output bytes.Buffer
cmd.Stdout = io.MultiWriter(os.Stdout, &output)
cmd.Stderr = os.Stderr
releaseEnv := make(map[string]string, len(env))
if prevRelease.Env != nil {
for k, v := range prevRelease.Env {
releaseEnv[k] = v
}
}
for k, v := range env {
releaseEnv[k] = v
}
if len(releaseEnv) > 0 {
stdin, err := cmd.StdinPipe()
if err != nil {
return err
}
go func() {
if err := appendEnvDir(os.Stdin, stdin, releaseEnv); 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")
release := &ct.Release{
ArtifactIDs: []string{slugRunnerID, slugImageID},
Env: releaseEnv,
Meta: prevRelease.Meta,
}
if release.Meta == nil {
release.Meta = make(map[string]string, len(meta))
}
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 == "" {
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
}
if sb, ok := prevRelease.Processes["slugbuilder"]; ok {
procs["slugbuilder"] = sb
}
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
}
func runClusterBackup(args *docopt.Args) error {
client, err := getClusterClient()
if err != nil {
return err
}
var bar *pb.ProgressBar
if term.IsTerminal(os.Stderr.Fd()) {
bar = pb.New(0)
bar.SetUnits(pb.U_BYTES)
bar.ShowBar = false
bar.ShowSpeed = true
bar.Output = os.Stderr
bar.Start()
}
var dest io.Writer = os.Stdout
if filename := args.String["--file"]; filename != "" {
f, err := os.Create(filename)
if err != nil {
return err
}
defer f.Close()
dest = f
}
fmt.Fprintln(os.Stderr, "Creating cluster backup...")
tw := NewTarWriter("flynn-backup-"+time.Now().UTC().Format("2006-01-02_150405"), dest)
defer tw.Close()
// get app and release details for key apps
data := make(map[string]*ct.ExpandedFormation, 4)
for _, name := range []string{"postgres", "discoverd", "flannel", "controller"} {
app, err := client.GetApp(name)
if err != nil {
return fmt.Errorf("error getting %s app details: %s", name, err)
}
release, err := client.GetAppRelease(app.ID)
if err != nil {
return fmt.Errorf("error getting %s app release: %s", name, err)
}
formation, err := client.GetFormation(app.ID, release.ID)
if err != nil {
return fmt.Errorf("error getting %s app formation: %s", name, err)
}
artifact, err := client.GetArtifact(release.ArtifactID)
if err != nil {
return fmt.Errorf("error getting %s app artifact: %s", name, err)
}
data[name] = &ct.ExpandedFormation{
App: app,
Release: release,
Artifact: artifact,
Processes: formation.Processes,
}
}
if err := tw.WriteJSON("flynn.json", data); err != nil {
return err
}
config := &runConfig{
App: "postgres",
Release: data["postgres"].Release.ID,
Entrypoint: []string{"sh"},
Args: []string{"-c", "pg_dumpall --clean --if-exists | gzip -9"},
Env: map[string]string{
"PGHOST": "leader.postgres.discoverd",
"PGUSER": "******",
"PGPASSWORD": data["postgres"].Release.Env["PGPASSWORD"],
},
DisableLog: true,
}
if err := tw.WriteCommandOutput(client, "postgres.sql.gz", config, bar); err != nil {
return fmt.Errorf("error dumping database: %s", err)
}
if bar != nil {
bar.Finish()
}
fmt.Fprintln(os.Stderr, "Backup complete.")
return nil
}
func (s *SchedulerSuite) TestDeployController(t *c.C) {
if testCluster == nil {
t.Skip("cannot determine test cluster size")
}
// get the current controller release
client := s.controllerClient(t)
app, err := client.GetApp("controller")
t.Assert(err, c.IsNil)
release, err := client.GetAppRelease(app.ID)
t.Assert(err, c.IsNil)
// create a controller deployment
release.ID = ""
t.Assert(client.CreateRelease(release), c.IsNil)
deployment, err := client.CreateDeployment(app.ID, release.ID)
t.Assert(err, c.IsNil)
// use a function to create the event stream as a new stream will be needed
// after deploying the controller
var events chan *ct.DeploymentEvent
var eventStream stream.Stream
connectStream := func() {
events = make(chan *ct.DeploymentEvent)
err := attempt.Strategy{
Total: 10 * time.Second,
Delay: 500 * time.Millisecond,
}.Run(func() (err error) {
eventStream, err = client.StreamDeployment(deployment.ID, events)
return
})
t.Assert(err, c.IsNil)
}
connectStream()
defer eventStream.Close()
// wait for the deploy to complete (this doesn't wait for specific events
// due to the fact that when the deployer deploys itself, some events will
// not get sent)
loop:
for {
select {
case e, ok := <-events:
if !ok {
// reconnect the stream as it may of been closed
// due to the controller being deployed
debug(t, "reconnecting deployment event stream")
connectStream()
continue
}
debugf(t, "got deployment event: %s %s", e.JobType, e.JobState)
switch e.Status {
case "complete":
break loop
case "failed":
t.Fatal("the deployment failed")
}
case <-time.After(60 * time.Second):
t.Fatal("timed out waiting for the deploy to complete")
}
}
// check the correct controller jobs are running
hosts, err := s.clusterClient(t).ListHosts()
t.Assert(err, c.IsNil)
actual := make(map[string]map[string]int)
for _, host := range hosts {
for _, job := range host.Jobs {
appID := job.Metadata["flynn-controller.app"]
if appID != app.ID {
continue
}
releaseID := job.Metadata["flynn-controller.release"]
if _, ok := actual[releaseID]; !ok {
actual[releaseID] = make(map[string]int)
}
typ := job.Metadata["flynn-controller.type"]
actual[releaseID][typ]++
}
}
expected := map[string]map[string]int{release.ID: {
"web": 2,
"deployer": 2,
"scheduler": testCluster.Size(),
}}
t.Assert(actual, c.DeepEquals, expected)
}