daemon.go 22 KB

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  1. package main
  2. import (
  3. "context"
  4. "crypto/tls"
  5. "fmt"
  6. "os"
  7. "path/filepath"
  8. "runtime"
  9. "strings"
  10. "time"
  11. containerddefaults "github.com/containerd/containerd/defaults"
  12. "github.com/docker/distribution/uuid"
  13. "github.com/docker/docker/api"
  14. apiserver "github.com/docker/docker/api/server"
  15. buildbackend "github.com/docker/docker/api/server/backend/build"
  16. "github.com/docker/docker/api/server/middleware"
  17. "github.com/docker/docker/api/server/router"
  18. "github.com/docker/docker/api/server/router/build"
  19. checkpointrouter "github.com/docker/docker/api/server/router/checkpoint"
  20. "github.com/docker/docker/api/server/router/container"
  21. distributionrouter "github.com/docker/docker/api/server/router/distribution"
  22. grpcrouter "github.com/docker/docker/api/server/router/grpc"
  23. "github.com/docker/docker/api/server/router/image"
  24. "github.com/docker/docker/api/server/router/network"
  25. pluginrouter "github.com/docker/docker/api/server/router/plugin"
  26. sessionrouter "github.com/docker/docker/api/server/router/session"
  27. swarmrouter "github.com/docker/docker/api/server/router/swarm"
  28. systemrouter "github.com/docker/docker/api/server/router/system"
  29. "github.com/docker/docker/api/server/router/volume"
  30. buildkit "github.com/docker/docker/builder/builder-next"
  31. "github.com/docker/docker/builder/dockerfile"
  32. "github.com/docker/docker/cli/debug"
  33. "github.com/docker/docker/daemon"
  34. "github.com/docker/docker/daemon/cluster"
  35. "github.com/docker/docker/daemon/config"
  36. "github.com/docker/docker/daemon/listeners"
  37. "github.com/docker/docker/dockerversion"
  38. "github.com/docker/docker/libcontainerd/supervisor"
  39. dopts "github.com/docker/docker/opts"
  40. "github.com/docker/docker/pkg/authorization"
  41. "github.com/docker/docker/pkg/homedir"
  42. "github.com/docker/docker/pkg/jsonmessage"
  43. "github.com/docker/docker/pkg/pidfile"
  44. "github.com/docker/docker/pkg/plugingetter"
  45. "github.com/docker/docker/pkg/signal"
  46. "github.com/docker/docker/pkg/system"
  47. "github.com/docker/docker/plugin"
  48. "github.com/docker/docker/rootless"
  49. "github.com/docker/docker/runconfig"
  50. "github.com/docker/go-connections/tlsconfig"
  51. swarmapi "github.com/docker/swarmkit/api"
  52. "github.com/moby/buildkit/session"
  53. "github.com/pkg/errors"
  54. "github.com/sirupsen/logrus"
  55. "github.com/spf13/pflag"
  56. )
  57. // DaemonCli represents the daemon CLI.
  58. type DaemonCli struct {
  59. *config.Config
  60. configFile *string
  61. flags *pflag.FlagSet
  62. api *apiserver.Server
  63. d *daemon.Daemon
  64. authzMiddleware *authorization.Middleware // authzMiddleware enables to dynamically reload the authorization plugins
  65. }
  66. // NewDaemonCli returns a daemon CLI
  67. func NewDaemonCli() *DaemonCli {
  68. return &DaemonCli{}
  69. }
  70. func (cli *DaemonCli) start(opts *daemonOptions) (err error) {
  71. stopc := make(chan bool)
  72. defer close(stopc)
  73. // warn from uuid package when running the daemon
  74. uuid.Loggerf = logrus.Warnf
  75. opts.SetDefaultOptions(opts.flags)
  76. if cli.Config, err = loadDaemonCliConfig(opts); err != nil {
  77. return err
  78. }
  79. warnOnDeprecatedConfigOptions(cli.Config)
  80. if err := configureDaemonLogs(cli.Config); err != nil {
  81. return err
  82. }
  83. logrus.Info("Starting up")
  84. cli.configFile = &opts.configFile
  85. cli.flags = opts.flags
  86. if cli.Config.Debug {
  87. debug.Enable()
  88. }
  89. if cli.Config.Experimental {
  90. logrus.Warn("Running experimental build")
  91. if cli.Config.IsRootless() {
  92. logrus.Warn("Running in rootless mode. Cgroups, AppArmor, and CRIU are disabled.")
  93. }
  94. if rootless.RunningWithRootlessKit() {
  95. logrus.Info("Running with RootlessKit integration")
  96. if !cli.Config.IsRootless() {
  97. return fmt.Errorf("rootless mode needs to be enabled for running with RootlessKit")
  98. }
  99. }
  100. } else {
  101. if cli.Config.IsRootless() {
  102. return fmt.Errorf("rootless mode is supported only when running in experimental mode")
  103. }
  104. }
  105. // return human-friendly error before creating files
  106. if runtime.GOOS == "linux" && os.Geteuid() != 0 {
  107. return fmt.Errorf("dockerd needs to be started with root. To see how to run dockerd in rootless mode with unprivileged user, see the documentation")
  108. }
  109. system.InitLCOW(cli.Config.Experimental)
  110. if err := setDefaultUmask(); err != nil {
  111. return err
  112. }
  113. // Create the daemon root before we create ANY other files (PID, or migrate keys)
  114. // to ensure the appropriate ACL is set (particularly relevant on Windows)
  115. if err := daemon.CreateDaemonRoot(cli.Config); err != nil {
  116. return err
  117. }
  118. if err := system.MkdirAll(cli.Config.ExecRoot, 0700); err != nil {
  119. return err
  120. }
  121. potentiallyUnderRuntimeDir := []string{cli.Config.ExecRoot}
  122. if cli.Pidfile != "" {
  123. pf, err := pidfile.New(cli.Pidfile)
  124. if err != nil {
  125. return errors.Wrap(err, "failed to start daemon")
  126. }
  127. potentiallyUnderRuntimeDir = append(potentiallyUnderRuntimeDir, cli.Pidfile)
  128. defer func() {
  129. if err := pf.Remove(); err != nil {
  130. logrus.Error(err)
  131. }
  132. }()
  133. }
  134. if cli.Config.IsRootless() {
  135. // Set sticky bit if XDG_RUNTIME_DIR is set && the file is actually under XDG_RUNTIME_DIR
  136. if _, err := homedir.StickRuntimeDirContents(potentiallyUnderRuntimeDir); err != nil {
  137. // StickRuntimeDirContents returns nil error if XDG_RUNTIME_DIR is just unset
  138. logrus.WithError(err).Warn("cannot set sticky bit on files under XDG_RUNTIME_DIR")
  139. }
  140. }
  141. serverConfig, err := newAPIServerConfig(cli)
  142. if err != nil {
  143. return errors.Wrap(err, "failed to create API server")
  144. }
  145. cli.api = apiserver.New(serverConfig)
  146. hosts, err := loadListeners(cli, serverConfig)
  147. if err != nil {
  148. return errors.Wrap(err, "failed to load listeners")
  149. }
  150. ctx, cancel := context.WithCancel(context.Background())
  151. waitForContainerDShutdown, err := cli.initContainerD(ctx)
  152. if waitForContainerDShutdown != nil {
  153. defer waitForContainerDShutdown(10 * time.Second)
  154. }
  155. if err != nil {
  156. cancel()
  157. return err
  158. }
  159. defer cancel()
  160. signal.Trap(func() {
  161. cli.stop()
  162. <-stopc // wait for daemonCli.start() to return
  163. }, logrus.StandardLogger())
  164. // Notify that the API is active, but before daemon is set up.
  165. preNotifySystem()
  166. pluginStore := plugin.NewStore()
  167. if err := cli.initMiddlewares(cli.api, serverConfig, pluginStore); err != nil {
  168. logrus.Fatalf("Error creating middlewares: %v", err)
  169. }
  170. d, err := daemon.NewDaemon(ctx, cli.Config, pluginStore)
  171. if err != nil {
  172. return errors.Wrap(err, "failed to start daemon")
  173. }
  174. d.StoreHosts(hosts)
  175. // validate after NewDaemon has restored enabled plugins. Don't change order.
  176. if err := validateAuthzPlugins(cli.Config.AuthorizationPlugins, pluginStore); err != nil {
  177. return errors.Wrap(err, "failed to validate authorization plugin")
  178. }
  179. cli.d = d
  180. if err := cli.startMetricsServer(cli.Config.MetricsAddress); err != nil {
  181. return err
  182. }
  183. c, err := createAndStartCluster(cli, d)
  184. if err != nil {
  185. logrus.Fatalf("Error starting cluster component: %v", err)
  186. }
  187. // Restart all autostart containers which has a swarm endpoint
  188. // and is not yet running now that we have successfully
  189. // initialized the cluster.
  190. d.RestartSwarmContainers()
  191. logrus.Info("Daemon has completed initialization")
  192. routerOptions, err := newRouterOptions(cli.Config, d)
  193. if err != nil {
  194. return err
  195. }
  196. routerOptions.api = cli.api
  197. routerOptions.cluster = c
  198. initRouter(routerOptions)
  199. go d.ProcessClusterNotifications(ctx, c.GetWatchStream())
  200. cli.setupConfigReloadTrap()
  201. // The serve API routine never exits unless an error occurs
  202. // We need to start it as a goroutine and wait on it so
  203. // daemon doesn't exit
  204. serveAPIWait := make(chan error)
  205. go cli.api.Wait(serveAPIWait)
  206. // after the daemon is done setting up we can notify systemd api
  207. notifySystem()
  208. // Daemon is fully initialized and handling API traffic
  209. // Wait for serve API to complete
  210. errAPI := <-serveAPIWait
  211. c.Cleanup()
  212. shutdownDaemon(d)
  213. // Stop notification processing and any background processes
  214. cancel()
  215. if errAPI != nil {
  216. return errors.Wrap(errAPI, "shutting down due to ServeAPI error")
  217. }
  218. logrus.Info("Daemon shutdown complete")
  219. return nil
  220. }
  221. type routerOptions struct {
  222. sessionManager *session.Manager
  223. buildBackend *buildbackend.Backend
  224. features *map[string]bool
  225. buildkit *buildkit.Builder
  226. daemon *daemon.Daemon
  227. api *apiserver.Server
  228. cluster *cluster.Cluster
  229. }
  230. func newRouterOptions(config *config.Config, d *daemon.Daemon) (routerOptions, error) {
  231. opts := routerOptions{}
  232. sm, err := session.NewManager()
  233. if err != nil {
  234. return opts, errors.Wrap(err, "failed to create sessionmanager")
  235. }
  236. manager, err := dockerfile.NewBuildManager(d.BuilderBackend(), d.IdentityMapping())
  237. if err != nil {
  238. return opts, err
  239. }
  240. cgroupParent := newCgroupParent(config)
  241. bk, err := buildkit.New(buildkit.Opt{
  242. SessionManager: sm,
  243. Root: filepath.Join(config.Root, "buildkit"),
  244. Dist: d.DistributionServices(),
  245. NetworkController: d.NetworkController(),
  246. DefaultCgroupParent: cgroupParent,
  247. ResolverOpt: d.NewResolveOptionsFunc(),
  248. BuilderConfig: config.Builder,
  249. Rootless: d.Rootless(),
  250. IdentityMapping: d.IdentityMapping(),
  251. DNSConfig: config.DNSConfig,
  252. })
  253. if err != nil {
  254. return opts, err
  255. }
  256. bb, err := buildbackend.NewBackend(d.ImageService(), manager, bk)
  257. if err != nil {
  258. return opts, errors.Wrap(err, "failed to create buildmanager")
  259. }
  260. return routerOptions{
  261. sessionManager: sm,
  262. buildBackend: bb,
  263. buildkit: bk,
  264. features: d.Features(),
  265. daemon: d,
  266. }, nil
  267. }
  268. func (cli *DaemonCli) reloadConfig() {
  269. reload := func(c *config.Config) {
  270. // Revalidate and reload the authorization plugins
  271. if err := validateAuthzPlugins(c.AuthorizationPlugins, cli.d.PluginStore); err != nil {
  272. logrus.Fatalf("Error validating authorization plugin: %v", err)
  273. return
  274. }
  275. cli.authzMiddleware.SetPlugins(c.AuthorizationPlugins)
  276. // The namespaces com.docker.*, io.docker.*, org.dockerproject.* have been documented
  277. // to be reserved for Docker's internal use, but this was never enforced. Allowing
  278. // configured labels to use these namespaces are deprecated for 18.05.
  279. //
  280. // The following will check the usage of such labels, and report a warning for deprecation.
  281. //
  282. // TODO: At the next stable release, the validation should be folded into the other
  283. // configuration validation functions and an error will be returned instead, and this
  284. // block should be deleted.
  285. if err := config.ValidateReservedNamespaceLabels(c.Labels); err != nil {
  286. logrus.Warnf("Configured labels using reserved namespaces is deprecated: %s", err)
  287. }
  288. if err := cli.d.Reload(c); err != nil {
  289. logrus.Errorf("Error reconfiguring the daemon: %v", err)
  290. return
  291. }
  292. if c.IsValueSet("debug") {
  293. debugEnabled := debug.IsEnabled()
  294. switch {
  295. case debugEnabled && !c.Debug: // disable debug
  296. debug.Disable()
  297. case c.Debug && !debugEnabled: // enable debug
  298. debug.Enable()
  299. }
  300. }
  301. }
  302. if err := config.Reload(*cli.configFile, cli.flags, reload); err != nil {
  303. logrus.Error(err)
  304. }
  305. }
  306. func (cli *DaemonCli) stop() {
  307. cli.api.Close()
  308. }
  309. // shutdownDaemon just wraps daemon.Shutdown() to handle a timeout in case
  310. // d.Shutdown() is waiting too long to kill container or worst it's
  311. // blocked there
  312. func shutdownDaemon(d *daemon.Daemon) {
  313. shutdownTimeout := d.ShutdownTimeout()
  314. ch := make(chan struct{})
  315. go func() {
  316. d.Shutdown()
  317. close(ch)
  318. }()
  319. if shutdownTimeout < 0 {
  320. <-ch
  321. logrus.Debug("Clean shutdown succeeded")
  322. return
  323. }
  324. timeout := time.NewTimer(time.Duration(shutdownTimeout) * time.Second)
  325. defer timeout.Stop()
  326. select {
  327. case <-ch:
  328. logrus.Debug("Clean shutdown succeeded")
  329. case <-timeout.C:
  330. logrus.Error("Force shutdown daemon")
  331. }
  332. }
  333. func loadDaemonCliConfig(opts *daemonOptions) (*config.Config, error) {
  334. conf := opts.daemonConfig
  335. flags := opts.flags
  336. conf.Debug = opts.Debug
  337. conf.Hosts = opts.Hosts
  338. conf.LogLevel = opts.LogLevel
  339. conf.TLS = opts.TLS
  340. conf.TLSVerify = opts.TLSVerify
  341. conf.CommonTLSOptions = config.CommonTLSOptions{}
  342. if opts.TLSOptions != nil {
  343. conf.CommonTLSOptions.CAFile = opts.TLSOptions.CAFile
  344. conf.CommonTLSOptions.CertFile = opts.TLSOptions.CertFile
  345. conf.CommonTLSOptions.KeyFile = opts.TLSOptions.KeyFile
  346. }
  347. if conf.TrustKeyPath == "" {
  348. daemonConfDir, err := getDaemonConfDir(conf.Root)
  349. if err != nil {
  350. return nil, err
  351. }
  352. conf.TrustKeyPath = filepath.Join(daemonConfDir, defaultTrustKeyFile)
  353. }
  354. if flags.Changed("graph") && flags.Changed("data-root") {
  355. return nil, errors.New(`cannot specify both "--graph" and "--data-root" option`)
  356. }
  357. if opts.configFile != "" {
  358. c, err := config.MergeDaemonConfigurations(conf, flags, opts.configFile)
  359. if err != nil {
  360. if flags.Changed("config-file") || !os.IsNotExist(err) {
  361. return nil, errors.Wrapf(err, "unable to configure the Docker daemon with file %s", opts.configFile)
  362. }
  363. }
  364. // the merged configuration can be nil if the config file didn't exist.
  365. // leave the current configuration as it is if when that happens.
  366. if c != nil {
  367. conf = c
  368. }
  369. }
  370. if err := config.Validate(conf); err != nil {
  371. return nil, err
  372. }
  373. if flags.Changed("graph") {
  374. logrus.Warnf(`The "-g / --graph" flag is deprecated. Please use "--data-root" instead`)
  375. }
  376. // Check if duplicate label-keys with different values are found
  377. newLabels, err := config.GetConflictFreeLabels(conf.Labels)
  378. if err != nil {
  379. return nil, err
  380. }
  381. // The namespaces com.docker.*, io.docker.*, org.dockerproject.* have been documented
  382. // to be reserved for Docker's internal use, but this was never enforced. Allowing
  383. // configured labels to use these namespaces are deprecated for 18.05.
  384. //
  385. // The following will check the usage of such labels, and report a warning for deprecation.
  386. //
  387. // TODO: At the next stable release, the validation should be folded into the other
  388. // configuration validation functions and an error will be returned instead, and this
  389. // block should be deleted.
  390. if err := config.ValidateReservedNamespaceLabels(newLabels); err != nil {
  391. logrus.Warnf("Configured labels using reserved namespaces is deprecated: %s", err)
  392. }
  393. conf.Labels = newLabels
  394. // Regardless of whether the user sets it to true or false, if they
  395. // specify TLSVerify at all then we need to turn on TLS
  396. if conf.IsValueSet(FlagTLSVerify) {
  397. conf.TLS = true
  398. }
  399. return conf, nil
  400. }
  401. func warnOnDeprecatedConfigOptions(config *config.Config) {
  402. if config.ClusterAdvertise != "" {
  403. logrus.Warn(`The "cluster-advertise" option is deprecated. To be removed soon.`)
  404. }
  405. if config.ClusterStore != "" {
  406. logrus.Warn(`The "cluster-store" option is deprecated. To be removed soon.`)
  407. }
  408. if len(config.ClusterOpts) > 0 {
  409. logrus.Warn(`The "cluster-store-opt" option is deprecated. To be removed soon.`)
  410. }
  411. }
  412. func initRouter(opts routerOptions) {
  413. decoder := runconfig.ContainerDecoder{}
  414. routers := []router.Router{
  415. // we need to add the checkpoint router before the container router or the DELETE gets masked
  416. checkpointrouter.NewRouter(opts.daemon, decoder),
  417. container.NewRouter(opts.daemon, decoder),
  418. image.NewRouter(opts.daemon.ImageService()),
  419. systemrouter.NewRouter(opts.daemon, opts.cluster, opts.buildkit, opts.features),
  420. volume.NewRouter(opts.daemon.VolumesService()),
  421. build.NewRouter(opts.buildBackend, opts.daemon, opts.features),
  422. sessionrouter.NewRouter(opts.sessionManager),
  423. swarmrouter.NewRouter(opts.cluster),
  424. pluginrouter.NewRouter(opts.daemon.PluginManager()),
  425. distributionrouter.NewRouter(opts.daemon.ImageService()),
  426. }
  427. grpcBackends := []grpcrouter.Backend{}
  428. for _, b := range []interface{}{opts.daemon, opts.buildBackend} {
  429. if b, ok := b.(grpcrouter.Backend); ok {
  430. grpcBackends = append(grpcBackends, b)
  431. }
  432. }
  433. if len(grpcBackends) > 0 {
  434. routers = append(routers, grpcrouter.NewRouter(grpcBackends...))
  435. }
  436. if opts.daemon.NetworkControllerEnabled() {
  437. routers = append(routers, network.NewRouter(opts.daemon, opts.cluster))
  438. }
  439. if opts.daemon.HasExperimental() {
  440. for _, r := range routers {
  441. for _, route := range r.Routes() {
  442. if experimental, ok := route.(router.ExperimentalRoute); ok {
  443. experimental.Enable()
  444. }
  445. }
  446. }
  447. }
  448. opts.api.InitRouter(routers...)
  449. }
  450. // TODO: remove this from cli and return the authzMiddleware
  451. func (cli *DaemonCli) initMiddlewares(s *apiserver.Server, cfg *apiserver.Config, pluginStore plugingetter.PluginGetter) error {
  452. v := cfg.Version
  453. exp := middleware.NewExperimentalMiddleware(cli.Config.Experimental)
  454. s.UseMiddleware(exp)
  455. vm := middleware.NewVersionMiddleware(v, api.DefaultVersion, api.MinVersion)
  456. s.UseMiddleware(vm)
  457. if cfg.CorsHeaders != "" {
  458. c := middleware.NewCORSMiddleware(cfg.CorsHeaders)
  459. s.UseMiddleware(c)
  460. }
  461. cli.authzMiddleware = authorization.NewMiddleware(cli.Config.AuthorizationPlugins, pluginStore)
  462. cli.Config.AuthzMiddleware = cli.authzMiddleware
  463. s.UseMiddleware(cli.authzMiddleware)
  464. return nil
  465. }
  466. func (cli *DaemonCli) getContainerdDaemonOpts() ([]supervisor.DaemonOpt, error) {
  467. opts, err := cli.getPlatformContainerdDaemonOpts()
  468. if err != nil {
  469. return nil, err
  470. }
  471. if cli.Config.Debug {
  472. opts = append(opts, supervisor.WithLogLevel("debug"))
  473. } else if cli.Config.LogLevel != "" {
  474. opts = append(opts, supervisor.WithLogLevel(cli.Config.LogLevel))
  475. }
  476. if !cli.Config.CriContainerd {
  477. opts = append(opts, supervisor.WithPlugin("cri", nil))
  478. }
  479. return opts, nil
  480. }
  481. func newAPIServerConfig(cli *DaemonCli) (*apiserver.Config, error) {
  482. serverConfig := &apiserver.Config{
  483. Logging: true,
  484. SocketGroup: cli.Config.SocketGroup,
  485. Version: dockerversion.Version,
  486. CorsHeaders: cli.Config.CorsHeaders,
  487. }
  488. if cli.Config.TLS {
  489. tlsOptions := tlsconfig.Options{
  490. CAFile: cli.Config.CommonTLSOptions.CAFile,
  491. CertFile: cli.Config.CommonTLSOptions.CertFile,
  492. KeyFile: cli.Config.CommonTLSOptions.KeyFile,
  493. ExclusiveRootPools: true,
  494. }
  495. if cli.Config.TLSVerify {
  496. // server requires and verifies client's certificate
  497. tlsOptions.ClientAuth = tls.RequireAndVerifyClientCert
  498. }
  499. tlsConfig, err := tlsconfig.Server(tlsOptions)
  500. if err != nil {
  501. return nil, err
  502. }
  503. serverConfig.TLSConfig = tlsConfig
  504. }
  505. if len(cli.Config.Hosts) == 0 {
  506. cli.Config.Hosts = make([]string, 1)
  507. }
  508. return serverConfig, nil
  509. }
  510. func loadListeners(cli *DaemonCli, serverConfig *apiserver.Config) ([]string, error) {
  511. var hosts []string
  512. seen := make(map[string]struct{}, len(cli.Config.Hosts))
  513. for i := 0; i < len(cli.Config.Hosts); i++ {
  514. var err error
  515. if cli.Config.Hosts[i], err = dopts.ParseHost(cli.Config.TLS, honorXDG, cli.Config.Hosts[i]); err != nil {
  516. return nil, errors.Wrapf(err, "error parsing -H %s", cli.Config.Hosts[i])
  517. }
  518. if _, ok := seen[cli.Config.Hosts[i]]; ok {
  519. continue
  520. }
  521. seen[cli.Config.Hosts[i]] = struct{}{}
  522. protoAddr := cli.Config.Hosts[i]
  523. protoAddrParts := strings.SplitN(protoAddr, "://", 2)
  524. if len(protoAddrParts) != 2 {
  525. return nil, fmt.Errorf("bad format %s, expected PROTO://ADDR", protoAddr)
  526. }
  527. proto := protoAddrParts[0]
  528. addr := protoAddrParts[1]
  529. // It's a bad idea to bind to TCP without tlsverify.
  530. if proto == "tcp" && (serverConfig.TLSConfig == nil || serverConfig.TLSConfig.ClientAuth != tls.RequireAndVerifyClientCert) {
  531. logrus.Warn("[!] DON'T BIND ON ANY IP ADDRESS WITHOUT setting --tlsverify IF YOU DON'T KNOW WHAT YOU'RE DOING [!]")
  532. }
  533. ls, err := listeners.Init(proto, addr, serverConfig.SocketGroup, serverConfig.TLSConfig)
  534. if err != nil {
  535. return nil, err
  536. }
  537. // If we're binding to a TCP port, make sure that a container doesn't try to use it.
  538. if proto == "tcp" {
  539. if err := allocateDaemonPort(addr); err != nil {
  540. return nil, err
  541. }
  542. }
  543. logrus.Debugf("Listener created for HTTP on %s (%s)", proto, addr)
  544. hosts = append(hosts, protoAddrParts[1])
  545. cli.api.Accept(addr, ls...)
  546. }
  547. return hosts, nil
  548. }
  549. func createAndStartCluster(cli *DaemonCli, d *daemon.Daemon) (*cluster.Cluster, error) {
  550. name, _ := os.Hostname()
  551. // Use a buffered channel to pass changes from store watch API to daemon
  552. // A buffer allows store watch API and daemon processing to not wait for each other
  553. watchStream := make(chan *swarmapi.WatchMessage, 32)
  554. c, err := cluster.New(cluster.Config{
  555. Root: cli.Config.Root,
  556. Name: name,
  557. Backend: d,
  558. VolumeBackend: d.VolumesService(),
  559. ImageBackend: d.ImageService(),
  560. PluginBackend: d.PluginManager(),
  561. NetworkSubnetsProvider: d,
  562. DefaultAdvertiseAddr: cli.Config.SwarmDefaultAdvertiseAddr,
  563. RaftHeartbeatTick: cli.Config.SwarmRaftHeartbeatTick,
  564. RaftElectionTick: cli.Config.SwarmRaftElectionTick,
  565. RuntimeRoot: cli.getSwarmRunRoot(),
  566. WatchStream: watchStream,
  567. })
  568. if err != nil {
  569. return nil, err
  570. }
  571. d.SetCluster(c)
  572. err = c.Start()
  573. return c, err
  574. }
  575. // validates that the plugins requested with the --authorization-plugin flag are valid AuthzDriver
  576. // plugins present on the host and available to the daemon
  577. func validateAuthzPlugins(requestedPlugins []string, pg plugingetter.PluginGetter) error {
  578. for _, reqPlugin := range requestedPlugins {
  579. if _, err := pg.Get(reqPlugin, authorization.AuthZApiImplements, plugingetter.Lookup); err != nil {
  580. return err
  581. }
  582. }
  583. return nil
  584. }
  585. func systemContainerdRunning(honorXDG bool) (string, bool, error) {
  586. addr := containerddefaults.DefaultAddress
  587. if honorXDG {
  588. runtimeDir, err := homedir.GetRuntimeDir()
  589. if err != nil {
  590. return "", false, err
  591. }
  592. addr = filepath.Join(runtimeDir, "containerd", "containerd.sock")
  593. }
  594. _, err := os.Lstat(addr)
  595. return addr, err == nil, nil
  596. }
  597. // configureDaemonLogs sets the logrus logging level and formatting
  598. func configureDaemonLogs(conf *config.Config) error {
  599. if conf.LogLevel != "" {
  600. lvl, err := logrus.ParseLevel(conf.LogLevel)
  601. if err != nil {
  602. return fmt.Errorf("unable to parse logging level: %s", conf.LogLevel)
  603. }
  604. logrus.SetLevel(lvl)
  605. } else {
  606. logrus.SetLevel(logrus.InfoLevel)
  607. }
  608. logrus.SetFormatter(&logrus.TextFormatter{
  609. TimestampFormat: jsonmessage.RFC3339NanoFixed,
  610. DisableColors: conf.RawLogs,
  611. FullTimestamp: true,
  612. })
  613. return nil
  614. }