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 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
Artifact struct {
URI string
}
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)
}
artifactURIs := make(map[string]string)
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
}
}
for _, step := range manifestSteps {
switch step.ID {
case "postgres":
updateProcArgs(data.Postgres, step)
case "controller":
updateProcArgs(data.Controller, step)
case "mariadb":
if data.MariaDB != nil {
updateProcArgs(data.MariaDB, step)
}
case "mongodb":
if data.MongoDB != nil {
updateProcArgs(data.MongoDB, step)
}
}
if step.Artifact.URI != "" {
artifactURIs[step.ID] = step.Artifact.URI
// update current artifact in database for service, taking care to
// check the database version as migration 15 changed the way
// artifacts are related to releases in the database
sqlBuf.WriteString(fmt.Sprintf(`
DO $$
BEGIN
IF (SELECT MAX(id) FROM schema_migrations) < 15 THEN
UPDATE artifacts SET uri = '%[1]s' WHERE artifact_id = (
SELECT artifact_id FROM releases WHERE release_id = (
SELECT release_id FROM apps WHERE name = '%[2]s'
)
);
ELSE
UPDATE artifacts SET uri = '%[1]s' WHERE type = 'docker' AND artifact_id = (
SELECT artifact_id FROM release_artifacts WHERE release_id = (
SELECT release_id FROM apps WHERE name = '%[2]s'
)
);
END IF;
END;
$$;`, step.Artifact.URI, step.ID))
}
}
data.Discoverd.ImageArtifact.URI = artifactURIs["discoverd"]
data.Discoverd.Release.Env["DISCOVERD_PEERS"] = "{{ range $ip := .SortedHostIPs }}{{ $ip }}:1111,{{ end }}"
data.Postgres.ImageArtifact.URI = artifactURIs["postgres"]
data.Flannel.ImageArtifact.URI = artifactURIs["flannel"]
data.Controller.ImageArtifact.URI = artifactURIs["controller"]
if data.MariaDB != nil {
data.MariaDB.ImageArtifact.URI = artifactURIs["mariadb"]
if data.MariaDB.Processes["mariadb"] == 0 {
// skip mariadb if it wasn't scaled up in the backup
data.MariaDB = nil
}
}
if data.MongoDB != nil {
data.MongoDB.ImageArtifact.URI = artifactURIs["mongodb"]
if data.MongoDB.Processes["mongodb"] == 0 {
// skip mongodb if it wasn't scaled up in the backup
data.MongoDB = nil
}
}
// create the slugbuilder artifact if gitreceive still references
// SLUGBUILDER_IMAGE_URI (in which case there is no slugbuilder
// artifact in the database)
sqlBuf.WriteString(fmt.Sprintf(`
DO $$
BEGIN
IF (SELECT env->>'SLUGBUILDER_IMAGE_ID' FROM releases WHERE release_id = (SELECT release_id FROM apps WHERE name = 'gitreceive')) IS NULL THEN
INSERT INTO artifacts (artifact_id, type, uri) VALUES ('%s', 'docker', '%s');
END IF;
END;
$$;`, random.UUID(), artifactURIs["slugbuilder-image"]))
// update the URI of 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"} {
sqlBuf.WriteString(fmt.Sprintf(`
UPDATE artifacts SET uri = '%[1]s'
WHERE artifact_id = (SELECT (env->>'%[2]s_IMAGE_ID')::uuid FROM releases WHERE release_id = (SELECT release_id FROM apps WHERE name = 'gitreceive'))
OR uri = (SELECT env->>'%[2]s_IMAGE_URI' FROM releases WHERE release_id = (SELECT release_id FROM apps WHERE name = 'gitreceive'));`,
artifactURIs[name+"-image"], 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)
sqlBuf.WriteString(fmt.Sprintf(`
UPDATE artifacts SET uri = '%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'));`,
artifactURIs["redis-image"]))
// 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 = pg_temp.json_object_update_key(env, '%[1]s_IMAGE_ID', (SELECT artifact_id::text FROM artifacts WHERE uri = '%[2]s'))
WHERE env->>'%[1]s_IMAGE_URI' IS NOT NULL;`,
strings.ToUpper(name), artifactURIs[name+"-image"]))
}
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,
}
}
// start discoverd/flannel/postgres/mariadb
cfg.Singleton = data.Postgres.Release.Env["SINGLETON"] == "true"
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", "wait", &bootstrap.WaitAction{
URL: "http://postgres-api.discoverd/ping",
}),
}
// Only run up MariaDB if it's in the backup
if data.MariaDB != nil {
systemSteps = append(systemSteps, step("mariadb", "run-app", &bootstrap.RunAppAction{
ExpandedFormation: data.MariaDB,
}))
systemSteps = append(systemSteps, step("mariadb-wait", "wait", &bootstrap.WaitAction{
URL: "http://mariadb-api.discoverd/ping",
}))
}
// Only run up MongoDB if it's in the backup
if data.MongoDB != nil {
systemSteps = append(systemSteps, step("mongodb", "run-app", &bootstrap.RunAppAction{
ExpandedFormation: data.MongoDB,
}))
systemSteps = append(systemSteps, step("mongodb-wait", "wait", &bootstrap.WaitAction{
URL: "http://mongodb-api.discoverd/ping",
}))
}
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"]))
// load data into postgres
cmd := exec.JobUsingHost(state.Hosts[0], host.Artifact{Type: data.Postgres.ImageArtifact.Type, URI: data.Postgres.ImageArtifact.URI}, 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()}
var mysqldb io.Reader
if data.MariaDB != nil {
mysqldb, err = getFile("mysql.sql.gz")
if err != nil {
return err
}
}
// load data into mariadb if it was present in the backup.
if mysqldb != nil && data.MariaDB != nil {
cmd = exec.JobUsingHost(state.Hosts[0], host.Artifact{Type: data.MariaDB.ImageArtifact.Type, URI: data.MariaDB.ImageArtifact.URI}, 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()}
}
var mongodb io.Reader
if data.MongoDB != nil {
mongodb, err = getFile("mongodb.archive.gz")
if err != nil {
return err
}
}
// load data into mongodb if it was present in the backup.
if mongodb != nil && data.MongoDB != nil {
cmd = exec.JobUsingHost(state.Hosts[0], host.Artifact{Type: data.MongoDB.ImageArtifact.Type, URI: data.MongoDB.ImageArtifact.URI}, 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()}
}
// 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)
}
// get blobstore config
client, err := controller.NewClient("http://"+controllerInstances[0].Addr, data.Controller.Release.Env["AUTH_KEY"])
if err != nil {
return err
}
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(data.Controller.Release.Env["AUTH_KEY"])
ch <- &bootstrap.StepInfo{StepMeta: meta, State: "done", Timestamp: time.Now().UTC()}
// start blobstore, 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("blobstore", "run-app", &bootstrap.RunAppAction{
ExpandedFormation: blobstoreFormation,
}),
step("blobstore-wait", "wait", &bootstrap.WaitAction{
URL: "http://blobstore.discoverd",
Status: 200,
}),
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
}
return nil
}
func runBootstrapBackup(manifest []byte, backupFile string, ch chan *bootstrap.StepInfo, clusterURL string, hostIPs []string, minHosts, timeout int) 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)
var data struct {
Discoverd, Flannel, Postgres, Controller *ct.ExpandedFormation
}
for {
header, err := tr.Next()
if err != nil {
return fmt.Errorf("error reading backup file: %s", err)
}
if path.Base(header.Name) != "flynn.json" {
continue
}
if err := json.NewDecoder(tr).Decode(&data); err != nil {
return fmt.Errorf("error decoding backup data: %s", err)
}
break
}
var db io.Reader
rewound := false
for {
header, err := tr.Next()
if err == io.EOF && !rewound {
if _, err := f.Seek(0, os.SEEK_SET); err != nil {
return fmt.Errorf("error seeking in backup file: %s", err)
}
rewound = true
} else if err != nil {
return fmt.Errorf("error finding db in backup file: %s", err)
}
if path.Base(header.Name) != "postgres.sql.gz" {
continue
}
db, err = gzip.NewReader(tr)
if err != nil {
return fmt.Errorf("error opening db from backup file: %s", err)
}
break
}
if db == nil {
return fmt.Errorf("did not found 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"
$function$;
`)
var manifestSteps []struct {
ID string
Artifact struct {
URI string
}
Release struct {
Env map[string]string
}
}
if err := json.Unmarshal(manifest, &manifestSteps); err != nil {
return fmt.Errorf("error decoding manifest json: %s", err)
}
artifactURIs := make(map[string]string)
for _, step := range manifestSteps {
if step.Artifact.URI != "" {
artifactURIs[step.ID] = step.Artifact.URI
if step.ID == "gitreceive" {
artifactURIs["slugbuilder"] = step.Release.Env["SLUGBUILDER_IMAGE_URI"]
artifactURIs["slugrunner"] = step.Release.Env["SLUGRUNNER_IMAGE_URI"]
}
// update current artifact in database for service
sqlBuf.WriteString(fmt.Sprintf(`
UPDATE artifacts SET uri = '%s'
WHERE artifact_id = (SELECT artifact_id FROM releases
WHERE release_id = (SELECT release_id FROM apps
WHERE name = '%s'));`, step.Artifact.URI, step.ID))
}
}
data.Discoverd.Artifact.URI = artifactURIs["discoverd"]
data.Discoverd.Release.Env["DISCOVERD_PEERS"] = "{{ range $ip := .SortedHostIPs }}{{ $ip }}:1110,{{ end }}"
data.Postgres.Artifact.URI = artifactURIs["postgres"]
data.Flannel.Artifact.URI = artifactURIs["flannel"]
data.Controller.Artifact.URI = artifactURIs["controller"]
for _, app := range []string{"gitreceive", "taffy"} {
for _, env := range []string{"slugbuilder", "slugrunner"} {
sqlBuf.WriteString(fmt.Sprintf(`
UPDATE releases SET env = pg_temp.json_object_update_key(env, '%s_IMAGE_URI', '%s')
WHERE release_id = (SELECT release_id from apps WHERE name = '%s');`,
strings.ToUpper(env), artifactURIs[env], app))
}
}
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,
}
}
// start discoverd/flannel/postgres
steps := 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", "wait", &bootstrap.WaitAction{
URL: "http://postgres-api.discoverd/ping",
}),
}
state, err := steps.Run(ch, clusterURL, hostIPs, minHosts, timeout)
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"]))
// load data into postgres
cmd := exec.JobUsingHost(state.Hosts[0], host.Artifact{Type: data.Postgres.Artifact.Type, URI: data.Postgres.Artifact.URI}, nil)
cmd.Entrypoint = []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-db"}
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/scheduler
data.Controller.Processes["web"] = 1
delete(data.Controller.Processes, "worker")
meta = bootstrap.StepMeta{ID: "controller", Action: "run-app"}
ch <- &bootstrap.StepInfo{StepMeta: meta, State: "start", Timestamp: time.Now().UTC()}
if err := (&bootstrap.RunAppAction{
ID: "controller",
ExpandedFormation: data.Controller,
}).Run(state); err != nil {
ch <- &bootstrap.StepInfo{
StepMeta: meta,
State: "error",
Error: err.Error(),
Err: err,
Timestamp: time.Now().UTC(),
}
return err
}
ch <- &bootstrap.StepInfo{StepMeta: meta, State: "done", Timestamp: time.Now().UTC()}
return nil
}
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, 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"
$function$;
`)
var manifestSteps []struct {
ID string
Artifact struct {
URI string
}
Release struct {
Env map[string]string
}
}
if err := json.Unmarshal(manifest, &manifestSteps); err != nil {
return fmt.Errorf("error decoding manifest json: %s", err)
}
artifactURIs := make(map[string]string)
for _, step := range manifestSteps {
if step.Artifact.URI != "" {
artifactURIs[step.ID] = step.Artifact.URI
if step.ID == "gitreceive" {
artifactURIs["slugbuilder"] = step.Release.Env["SLUGBUILDER_IMAGE_URI"]
artifactURIs["slugrunner"] = step.Release.Env["SLUGRUNNER_IMAGE_URI"]
}
// update current artifact in database for service
sqlBuf.WriteString(fmt.Sprintf(`
UPDATE artifacts SET uri = '%s'
WHERE artifact_id = (SELECT artifact_id FROM releases
WHERE release_id = (SELECT release_id FROM apps
WHERE name = '%s'));`, step.Artifact.URI, step.ID))
}
}
data.Discoverd.Artifact.URI = artifactURIs["discoverd"]
data.Discoverd.Release.Env["DISCOVERD_PEERS"] = "{{ range $ip := .SortedHostIPs }}{{ $ip }}:1111,{{ end }}"
data.Postgres.Artifact.URI = artifactURIs["postgres"]
data.Flannel.Artifact.URI = artifactURIs["flannel"]
data.Controller.Artifact.URI = artifactURIs["controller"]
if data.MariaDB != nil {
data.MariaDB.Artifact.URI = artifactURIs["mariadb"]
if data.MariaDB.Processes["mariadb"] == 0 {
// skip mariadb if it wasn't scaled up in the backup
data.MariaDB = nil
}
}
sqlBuf.WriteString(fmt.Sprintf(`
UPDATE artifacts SET uri = '%s'
WHERE uri = (SELECT env->>'SLUGRUNNER_IMAGE_URI' FROM releases WHERE release_id = (SELECT release_id FROM apps WHERE name = 'gitreceive'));`,
artifactURIs["slugrunner"]))
for _, app := range []string{"gitreceive", "taffy"} {
for _, env := range []string{"slugbuilder", "slugrunner"} {
sqlBuf.WriteString(fmt.Sprintf(`
UPDATE releases SET env = pg_temp.json_object_update_key(env, '%s_IMAGE_URI', '%s')
WHERE release_id = (SELECT release_id from apps WHERE name = '%s');`,
strings.ToUpper(env), artifactURIs[env], app))
}
}
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,
}
}
// start discoverd/flannel/postgres/mariadb
cfg.Singleton = data.Postgres.Release.Env["SINGLETON"] == "true"
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", "wait", &bootstrap.WaitAction{
URL: "http://postgres-api.discoverd/ping",
}),
}
// Only run up MariaDB if it's in the backup
if data.MariaDB != nil {
systemSteps = append(systemSteps, step("mariadb", "run-app", &bootstrap.RunAppAction{
ExpandedFormation: data.MariaDB,
}))
systemSteps = append(systemSteps, step("mariadb-wait", "wait", &bootstrap.WaitAction{
URL: "http://mariadb-api.discoverd/ping",
}))
}
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"]))
// load data into postgres
cmd := exec.JobUsingHost(state.Hosts[0], host.Artifact{Type: data.Postgres.Artifact.Type, URI: data.Postgres.Artifact.URI}, nil)
cmd.Entrypoint = []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()}
var mysqldb io.Reader
if data.MariaDB != nil {
mysqldb, err = getFile("mysql.sql.gz")
if err != nil {
return err
}
}
// load data into mariadb if it was present in the backup.
if mysqldb != nil && data.MariaDB != nil {
cmd = exec.JobUsingHost(state.Hosts[0], host.Artifact{Type: data.MariaDB.Artifact.Type, URI: data.MariaDB.Artifact.URI}, nil)
cmd.Entrypoint = []string{"mysql"}
cmd.Cmd = []string{"-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 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)
}
// get blobstore config
client, err := controller.NewClient("http://"+controllerInstances[0].Addr, data.Controller.Release.Env["AUTH_KEY"])
if err != nil {
return err
}
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(data.Controller.Release.Env["AUTH_KEY"])
ch <- &bootstrap.StepInfo{StepMeta: meta, State: "done", Timestamp: time.Now().UTC()}
// start blobstore, 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("blobstore", "run-app", &bootstrap.RunAppAction{
ExpandedFormation: blobstoreFormation,
}),
step("blobstore-wait", "wait", &bootstrap.WaitAction{
URL: "http://blobstore.discoverd",
Status: 404,
}),
step("controller-scheduler", "run-app", &bootstrap.RunAppAction{
ExpandedFormation: data.Controller,
}),
step("status", "status-check", &bootstrap.StatusCheckAction{
URL: "http://status-web.discoverd",
}),
step("cluster-monitor", "cluster-monitor", &bootstrap.ClusterMonitorAction{
Enabled: true,
}),
}.RunWithState(ch, state)
if err != nil {
return err
}
return nil
}