-type bootCommand struct{}
-
-func (bootCommand) RunCommand(prog string, args []string, stdin io.Reader, stdout, stderr io.Writer) int {
- boot := &Booter{
- Stderr: stderr,
- logger: ctxlog.New(stderr, "json", "info"),
- }
-
- ctx := ctxlog.Context(context.Background(), boot.logger)
- ctx, cancel := context.WithCancel(ctx)
- defer cancel()
-
- ch := make(chan os.Signal)
- signal.Notify(ch, syscall.SIGINT, syscall.SIGTERM)
- go func() {
- for sig := range ch {
- boot.logger.WithField("signal", sig).Info("caught signal")
- cancel()
- }
- }()
-
- var err error
- defer func() {
- if err != nil {
- boot.logger.WithError(err).Info("exiting")
- }
- }()
-
- flags := flag.NewFlagSet(prog, flag.ContinueOnError)
- flags.SetOutput(stderr)
- loader := config.NewLoader(stdin, boot.logger)
- loader.SetupFlags(flags)
- versionFlag := flags.Bool("version", false, "Write version information to stdout and exit 0")
- flags.StringVar(&boot.SourcePath, "source", ".", "arvados source tree `directory`")
- flags.StringVar(&boot.LibPath, "lib", "/var/lib/arvados", "`directory` to install dependencies and library files")
- flags.StringVar(&boot.ClusterType, "type", "production", "cluster `type`: development, test, or production")
- flags.StringVar(&boot.ListenHost, "listen-host", "localhost", "host name or interface address for service listeners")
- flags.StringVar(&boot.ControllerAddr, "controller-address", ":0", "desired controller address, `host:port` or `:port`")
- flags.BoolVar(&boot.OwnTemporaryDatabase, "own-temporary-database", false, "bring up a postgres server and create a temporary database")
- err = flags.Parse(args)
- if err == flag.ErrHelp {
- err = nil
- return 0
- } else if err != nil {
- return 2
- } else if *versionFlag {
- return cmd.Version.RunCommand(prog, args, stdin, stdout, stderr)
- } else if boot.ClusterType != "development" && boot.ClusterType != "test" && boot.ClusterType != "production" {
- err = fmt.Errorf("cluster type must be 'development', 'test', or 'production'")
- return 2
- }
-
- loader.SkipAPICalls = true
- cfg, err := loader.Load()
- if err != nil {
- return 1
- }
-
- boot.Start(ctx, cfg)
- defer boot.Stop()
- if url, ok := boot.WaitReady(); ok {
- fmt.Fprintln(stdout, url)
- <-ctx.Done() // wait for signal
- return 0
- } else {
- return 1
- }
-}
-
-type Booter struct {
- SourcePath string // e.g., /home/username/src/arvados
- LibPath string // e.g., /var/lib/arvados
- ClusterType string // e.g., production
- ListenHost string // e.g., localhost
- ControllerAddr string // e.g., 127.0.0.1:8000
- OwnTemporaryDatabase bool
- Stderr io.Writer
-
- logger logrus.FieldLogger
- cluster *arvados.Cluster
-
- ctx context.Context
- cancel context.CancelFunc
- done chan struct{}
- healthChecker *health.Aggregator
- tasksReady map[string]chan bool
-
- tempdir string
- configfile string
- environ []string // for child processes
-
- setupRubyOnce sync.Once
- setupRubyErr error
- goMutex sync.Mutex
-}
-
-func (boot *Booter) Start(ctx context.Context, cfg *arvados.Config) {
- boot.ctx, boot.cancel = context.WithCancel(ctx)
- boot.done = make(chan struct{})
- go func() {
- err := boot.run(cfg)
- if err != nil {
- fmt.Fprintln(boot.Stderr, err)
- }
- close(boot.done)
- }()
-}
-
-func (boot *Booter) run(cfg *arvados.Config) error {
- cwd, err := os.Getwd()
- if err != nil {
- return err
- }
- if !strings.HasPrefix(boot.SourcePath, "/") {
- boot.SourcePath = filepath.Join(cwd, boot.SourcePath)
- }
- boot.SourcePath, err = filepath.EvalSymlinks(boot.SourcePath)
- if err != nil {
- return err
- }
-
- boot.tempdir, err = ioutil.TempDir("", "arvados-server-boot-")
- if err != nil {
- return err
- }
- defer os.RemoveAll(boot.tempdir)
-
- // Fill in any missing config keys, and write the resulting
- // config in the temp dir for child services to use.
- err = boot.autofillConfig(cfg, boot.logger)
- if err != nil {
- return err
- }
- conffile, err := os.OpenFile(filepath.Join(boot.tempdir, "config.yml"), os.O_CREATE|os.O_WRONLY, 0777)
- if err != nil {
- return err
- }
- defer conffile.Close()
- err = json.NewEncoder(conffile).Encode(cfg)
- if err != nil {
- return err
- }
- err = conffile.Close()
- if err != nil {
- return err
- }
- boot.configfile = conffile.Name()
-
- boot.environ = os.Environ()
- boot.cleanEnv()
- boot.setEnv("ARVADOS_CONFIG", boot.configfile)
- boot.setEnv("RAILS_ENV", boot.ClusterType)
- boot.prependEnv("PATH", filepath.Join(boot.LibPath, "bin")+":")
-
- boot.cluster, err = cfg.GetCluster("")
- if err != nil {
- return err
- }
- // Now that we have the config, replace the bootstrap logger
- // with a new one according to the logging config.
- loglevel := boot.cluster.SystemLogs.LogLevel
- if s := os.Getenv("ARVADOS_DEBUG"); s != "" && s != "0" {
- loglevel = "debug"
- }
- boot.logger = ctxlog.New(boot.Stderr, boot.cluster.SystemLogs.Format, loglevel).WithFields(logrus.Fields{
- "PID": os.Getpid(),
- })
- boot.healthChecker = &health.Aggregator{Cluster: boot.cluster}
-
- for _, dir := range []string{boot.LibPath, filepath.Join(boot.LibPath, "bin")} {
- if _, err = os.Stat(filepath.Join(dir, ".")); os.IsNotExist(err) {
- err = os.Mkdir(dir, 0755)
- if err != nil {
- return err
- }
- } else if err != nil {
- return err
- }
- }
- err = boot.installGoProgram(boot.ctx, "cmd/arvados-server")
- if err != nil {
- return err
- }
- err = boot.setupRubyEnv()
- if err != nil {
- return err
- }
-
- tasks := []bootTask{
- createCertificates{},
- runPostgreSQL{},
- runNginx{},
- runServiceCommand{name: "controller", svc: boot.cluster.Services.Controller, depends: []bootTask{runPostgreSQL{}}},
- runGoProgram{src: "services/arv-git-httpd"},
- runGoProgram{src: "services/health"},
- runGoProgram{src: "services/keepproxy", depends: []bootTask{runPassenger{src: "services/api"}}},
- runGoProgram{src: "services/keepstore", svc: boot.cluster.Services.Keepstore},
- runGoProgram{src: "services/keep-web"},
- runGoProgram{src: "services/ws", depends: []bootTask{runPostgreSQL{}}},
- installPassenger{src: "services/api"},
- runPassenger{src: "services/api", svc: boot.cluster.Services.RailsAPI, depends: []bootTask{createCertificates{}, runPostgreSQL{}, installPassenger{src: "services/api"}}},
- installPassenger{src: "apps/workbench", depends: []bootTask{installPassenger{src: "services/api"}}}, // dependency ensures workbench doesn't delay api startup
- runPassenger{src: "apps/workbench", svc: boot.cluster.Services.Workbench1, depends: []bootTask{installPassenger{src: "apps/workbench"}}},
- seedDatabase{},
- }
- if boot.ClusterType != "test" {
- tasks = append(tasks,
- runServiceCommand{name: "dispatch-cloud", svc: boot.cluster.Services.Controller},
- runGoProgram{src: "services/keep-balance"},
- )
- }
- boot.tasksReady = map[string]chan bool{}
- for _, task := range tasks {
- boot.tasksReady[task.String()] = make(chan bool)
- }
- for _, task := range tasks {
- task := task
- fail := func(err error) {
- if boot.ctx.Err() != nil {
- return
- }
- boot.cancel()
- boot.logger.WithField("task", task.String()).WithError(err).Error("task failed")
- }
- go func() {
- boot.logger.WithField("task", task.String()).Info("starting")
- err := task.Run(boot.ctx, fail, boot)
- if err != nil {
- fail(err)
- return
- }
- close(boot.tasksReady[task.String()])
- }()
- }
- err = boot.wait(boot.ctx, tasks...)
- if err != nil {
- return err
- }
- <-boot.ctx.Done()
- return boot.ctx.Err()
-}
-
-func (boot *Booter) wait(ctx context.Context, tasks ...bootTask) error {
- for _, task := range tasks {
- ch, ok := boot.tasksReady[task.String()]
- if !ok {
- return fmt.Errorf("no such task: %s", task)
- }
- boot.logger.WithField("task", task.String()).Info("waiting")
- select {
- case <-ch:
- case <-ctx.Done():
- return ctx.Err()
- }
- }
- return nil
-}
-
-func (boot *Booter) Stop() {
- boot.cancel()
- <-boot.done
-}
-
-func (boot *Booter) WaitReady() (*arvados.URL, bool) {
- for waiting := true; waiting; {
- time.Sleep(time.Second)
- if boot.ctx.Err() != nil {
- return nil, false
- }
- if boot.healthChecker == nil {
- // not set up yet
- continue
- }
- resp := boot.healthChecker.ClusterHealth()
- // The overall health check (resp.Health=="OK") might
- // never pass due to missing components (like
- // arvados-dispatch-cloud in a test cluster), so
- // instead we wait for all configured components to
- // pass.
- waiting = false
- for target, check := range resp.Checks {
- if check.Health != "OK" {
- waiting = true
- boot.logger.WithField("target", target).Debug("waiting")
- }
- }
- }
- u := boot.cluster.Services.Controller.ExternalURL
- return &u, true
-}
-
-func (boot *Booter) prependEnv(key, prepend string) {
- for i, s := range boot.environ {
- if strings.HasPrefix(s, key+"=") {
- boot.environ[i] = key + "=" + prepend + s[len(key)+1:]
- return
- }
- }
- boot.environ = append(boot.environ, key+"="+prepend)
-}
-
-var cleanEnvPrefixes = []string{
- "GEM_HOME=",
- "GEM_PATH=",
- "ARVADOS_",
-}
-
-func (boot *Booter) cleanEnv() {
- var cleaned []string
- for _, s := range boot.environ {
- drop := false
- for _, p := range cleanEnvPrefixes {
- if strings.HasPrefix(s, p) {
- drop = true
- break
- }
- }
- if !drop {
- cleaned = append(cleaned, s)
- }
- }
- boot.environ = cleaned
-}
-
-func (boot *Booter) setEnv(key, val string) {
- for i, s := range boot.environ {
- if strings.HasPrefix(s, key+"=") {
- boot.environ[i] = key + "=" + val
- return
- }
- }
- boot.environ = append(boot.environ, key+"="+val)
-}
-
-func (boot *Booter) installGoProgram(ctx context.Context, srcpath string) error {
- boot.goMutex.Lock()
- defer boot.goMutex.Unlock()
- return boot.RunProgram(ctx, filepath.Join(boot.SourcePath, srcpath), nil, []string{"GOPATH=" + boot.LibPath}, "go", "install")
-}
-
-func (boot *Booter) setupRubyEnv() error {
- cmd := exec.Command("gem", "env", "gempath")
- cmd.Env = boot.environ
- buf, err := cmd.Output() // /var/lib/arvados/.gem/ruby/2.5.0/bin:...
- if err != nil || len(buf) == 0 {
- return fmt.Errorf("gem env gempath: %v", err)
- }
- gempath := string(bytes.Split(buf, []byte{':'})[0])
- boot.prependEnv("PATH", gempath+"/bin:")
- boot.setEnv("GEM_HOME", gempath)
- boot.setEnv("GEM_PATH", gempath)
- // Passenger install doesn't work unless $HOME is ~user
- u, err := user.Current()
- if err != nil {
- return err
- }
- boot.setEnv("HOME", u.HomeDir)
- return nil
-}
-
-func (boot *Booter) lookPath(prog string) string {
- for _, val := range boot.environ {
- if strings.HasPrefix(val, "PATH=") {
- for _, dir := range filepath.SplitList(val[5:]) {
- path := filepath.Join(dir, prog)
- if fi, err := os.Stat(path); err == nil && fi.Mode()&0111 != 0 {
- return path
- }
- }
- }
- }
- return prog
-}