Golang stage0.PrepareConfig类代码示例

func runRun(cmd *cobra.Command, args []string) (exit int) {
	err := parseApps(&rktApps, args, cmd.Flags(), true)
	if err != nil {
		stderr("run: error parsing app image arguments: %v", err)
		return 1
	}

	if len(flagPorts) > 0 && !flagPrivateNet.Any() {
		stderr("--port flag requires --private-net")
		return 1
	}

	if len(flagPodManifest) > 0 && (len(flagVolumes) > 0 || len(flagPorts) > 0 || flagInheritEnv || !flagExplicitEnv.IsEmpty() || rktApps.Count() > 0 || flagLocal) {
		stderr("conflicting flags set with --pod-manifest (see --help)")
		return 1
	}

	if globalFlags.Dir == "" {
		log.Printf("dir unset - using temporary directory")
		var err error
		globalFlags.Dir, err = ioutil.TempDir("", "rkt")
		if err != nil {
			stderr("error creating temporary directory: %v", err)
			return 1
		}
	}

	if flagInteractive && rktApps.Count() > 1 {
		stderr("run: interactive option only supports one image")
		return 1
	}

	if rktApps.Count() < 1 && len(flagPodManifest) == 0 {
		stderr("run: must provide at least one image or specify the pod manifest")
		return 1
	}

	s, err := store.NewStore(globalFlags.Dir)
	if err != nil {
		stderr("run: cannot open store: %v", err)
		return 1
	}

	config, err := getConfig()
	if err != nil {
		stderr("run: cannot get configuration: %v", err)
		return 1
	}
	fn := &finder{
		imageActionData: imageActionData{
			s:                  s,
			headers:            config.AuthPerHost,
			dockerAuth:         config.DockerCredentialsPerRegistry,
			insecureSkipVerify: globalFlags.InsecureSkipVerify,
			debug:              globalFlags.Debug,
		},
		local:    flagLocal,
		withDeps: false,
	}
	s1img, err := fn.findImage(flagStage1Image, "", false)
	if err != nil {
		stderr("Error finding stage1 image %q: %v", flagStage1Image, err)
		return 1
	}

	fn.ks = getKeystore()
	fn.withDeps = true
	if err := fn.findImages(&rktApps); err != nil {
		stderr("%v", err)
		return 1
	}

	p, err := newPod()
	if err != nil {
		stderr("Error creating new pod: %v", err)
		return 1
	}

	processLabel, mountLabel, err := label.InitLabels(nil)
	if err != nil {
		stderr("Error initialising SELinux: %v", err)
		return 1
	}

	cfg := stage0.CommonConfig{
		MountLabel:   mountLabel,
		ProcessLabel: processLabel,
		Store:        s,
		Stage1Image:  *s1img,
		UUID:         p.uuid,
		Debug:        globalFlags.Debug,
	}

	pcfg := stage0.PrepareConfig{
		CommonConfig: cfg,
		UseOverlay:   !flagNoOverlay && common.SupportsOverlay(),
	}

	if len(flagPodManifest) > 0 {
		pcfg.PodManifest = flagPodManifest
//.........这里部分代码省略.........

func runPrepare(cmd *cobra.Command, args []string) (exit int) {
	var err error
	origStdout := os.Stdout
	if flagQuiet {
		if os.Stdout, err = os.Open("/dev/null"); err != nil {
			stderr("prepare: unable to open /dev/null")
			return 1
		}
	}

	if err = parseApps(&rktApps, args, cmd.Flags(), true); err != nil {
		stderr("prepare: error parsing app image arguments: %v", err)
		return 1
	}

	if len(flagPodManifest) > 0 && (len(flagVolumes) > 0 || len(flagPorts) > 0 || flagInheritEnv || !flagExplicitEnv.IsEmpty() || flagLocal) {
		stderr("prepare: conflicting flags set with --pod-manifest (see --help)")
		return 1
	}

	if rktApps.Count() < 1 && len(flagPodManifest) == 0 {
		stderr("prepare: must provide at least one image or specify the pod manifest")
		return 1
	}

	if globalFlags.Dir == "" {
		log.Printf("dir unset - using temporary directory")
		globalFlags.Dir, err = ioutil.TempDir("", "rkt")
		if err != nil {
			stderr("prepare: error creating temporary directory: %v", err)
			return 1
		}
	}

	s, err := store.NewStore(globalFlags.Dir)
	if err != nil {
		stderr("prepare: cannot open store: %v", err)
		return 1
	}

	config, err := getConfig()
	if err != nil {
		stderr("prepare: cannot get configuration: %v", err)
		return 1
	}
	fn := &finder{
		imageActionData: imageActionData{
			s:                  s,
			headers:            config.AuthPerHost,
			dockerAuth:         config.DockerCredentialsPerRegistry,
			insecureSkipVerify: globalFlags.InsecureSkipVerify,
			debug:              globalFlags.Debug,
		},
		local:    flagLocal,
		withDeps: false,
	}

	s1img, err := getStage1Hash(s, flagStage1Image)
	if err != nil {
		stderr("prepare: %v", err)
		return 1
	}

	fn.ks = getKeystore()
	fn.withDeps = true
	if err := fn.findImages(&rktApps); err != nil {
		stderr("%v", err)
		return 1
	}

	p, err := newPod()
	if err != nil {
		stderr("prepare: error creating new pod: %v", err)
		return 1
	}

	cfg := stage0.CommonConfig{
		Store:       s,
		Stage1Image: *s1img,
		UUID:        p.uuid,
		Debug:       globalFlags.Debug,
	}

	pcfg := stage0.PrepareConfig{
		CommonConfig: cfg,
		UseOverlay:   !flagNoOverlay && common.SupportsOverlay(),
	}

	if len(flagPodManifest) > 0 {
		pcfg.PodManifest = flagPodManifest
	} else {
		pcfg.Volumes = []types.Volume(flagVolumes)
		pcfg.Ports = []types.ExposedPort(flagPorts)
		pcfg.InheritEnv = flagInheritEnv
		pcfg.ExplicitEnv = flagExplicitEnv.Strings()
		pcfg.Apps = &rktApps
	}

	if err = stage0.Prepare(pcfg, p.path(), p.uuid); err != nil {
		stderr("prepare: error setting up stage0: %v", err)
//.........这里部分代码省略.........

//.........这里部分代码省略.........
	p, err := newPod()
	if err != nil {
		stderr.PrintE("error creating new pod", err)
		return 1
	}

	// if requested, write out pod UUID early so "rkt rm" can
	// clean it up even if something goes wrong
	if flagUUIDFileSave != "" {
		if err := writeUUIDToFile(p.uuid, flagUUIDFileSave); err != nil {
			stderr.PrintE("error saving pod UUID to file", err)
			return 1
		}
	}

	processLabel, mountLabel, err := label.InitLabels([]string{"mcsdir:/var/run/rkt/mcs"})
	if err != nil {
		stderr.PrintE("error initialising SELinux", err)
		return 1
	}

	p.mountLabel = mountLabel

	cfg := stage0.CommonConfig{
		MountLabel:   mountLabel,
		ProcessLabel: processLabel,
		Store:        s,
		TreeStore:    ts,
		Stage1Image:  *s1img,
		UUID:         p.uuid,
		Debug:        globalFlags.Debug,
	}

	pcfg := stage0.PrepareConfig{
		CommonConfig:       &cfg,
		UseOverlay:         !flagNoOverlay && common.SupportsOverlay() && common.FSSupportsOverlay(getDataDir()),
		PrivateUsers:       privateUsers,
		SkipTreeStoreCheck: globalFlags.InsecureFlags.SkipOnDiskCheck(),
	}

	if len(flagPodManifest) > 0 {
		pcfg.PodManifest = flagPodManifest
	} else {
		pcfg.Ports = []types.ExposedPort(flagPorts)
		pcfg.InheritEnv = flagInheritEnv
		pcfg.ExplicitEnv = flagExplicitEnv.Strings()
		pcfg.EnvFromFile = flagEnvFromFile.Strings()
		pcfg.Apps = &rktApps
	}

	if globalFlags.Debug {
		stage0.InitDebug()
	}

	keyLock, err := lock.SharedKeyLock(lockDir(), common.PrepareLock)
	if err != nil {
		stderr.PrintE("cannot get shared prepare lock", err)
		return 1
	}
	err = stage0.Prepare(pcfg, p.path(), p.uuid)
	if err != nil {
		stderr.PrintE("error setting up stage0", err)
		keyLock.Close()
		return 1
	}
	keyLock.Close()

//.........这里部分代码省略.........
		return 1
	}

	p, err := newPod()
	if err != nil {
		stderr("Error creating new pod: %v", err)
		return 1
	}

	// if requested, write out pod UUID early so "rkt rm" can
	// clean it up even if something goes wrong
	if flagUUIDFileSave != "" {
		if err := writeUUIDToFile(p.uuid, flagUUIDFileSave); err != nil {
			stderr("Error saving pod UUID to file: %v", err)
			return 1
		}
	}

	processLabel, mountLabel, err := label.InitLabels(nil)
	if err != nil {
		stderr("Error initialising SELinux: %v", err)
		return 1
	}

	cfg := stage0.CommonConfig{
		MountLabel:   mountLabel,
		ProcessLabel: processLabel,
		Store:        s,
		Stage1Image:  *s1img,
		UUID:         p.uuid,
		Debug:        globalFlags.Debug,
	}

	pcfg := stage0.PrepareConfig{
		CommonConfig: cfg,
		UseOverlay:   !flagNoOverlay && common.SupportsOverlay(),
		PrivateUsers: privateUsers,
	}

	if len(flagPodManifest) > 0 {
		pcfg.PodManifest = flagPodManifest
	} else {
		pcfg.Ports = []types.ExposedPort(flagPorts)
		pcfg.InheritEnv = flagInheritEnv
		pcfg.ExplicitEnv = flagExplicitEnv.Strings()
		pcfg.Apps = &rktApps
	}

	if globalFlags.Debug {
		stage0.InitDebug()
	}

	keyLock, err := lock.SharedKeyLock(lockDir(), common.PrepareLock)
	if err != nil {
		stderr("rkt: cannot get shared prepare lock: %v", err)
		return 1
	}
	err = stage0.Prepare(pcfg, p.path(), p.uuid)
	if err != nil {
		stderr("run: error setting up stage0: %v", err)
		keyLock.Close()
		return 1
	}
	keyLock.Close()

	// get the lock fd for run

func runPrepare(cmd *cobra.Command, args []string) (exit int) {
	var err error
	origStdout := os.Stdout
	privateUsers := uid.NewBlankUidRange()
	if flagQuiet {
		if os.Stdout, err = os.Open("/dev/null"); err != nil {
			stderr("prepare: unable to open /dev/null: %v", err)
			return 1
		}
	}

	if flagStoreOnly && flagNoStore {
		stderr("both --store-only and --no-store specified")
		return 1
	}

	if flagPrivateUsers {
		if !common.SupportsUserNS() {
			stderr("prepare: --private-users is not supported, kernel compiled without user namespace support")
			return 1
		}
		privateUsers.SetRandomUidRange(uid.DefaultRangeCount)
	}

	if err = parseApps(&rktApps, args, cmd.Flags(), true); err != nil {
		stderr("prepare: error parsing app image arguments: %v", err)
		return 1
	}

	if len(flagPodManifest) > 0 && (len(flagPorts) > 0 || flagInheritEnv || !flagExplicitEnv.IsEmpty() || flagStoreOnly || flagNoStore) {
		stderr("prepare: conflicting flags set with --pod-manifest (see --help)")
		return 1
	}

	if rktApps.Count() < 1 && len(flagPodManifest) == 0 {
		stderr("prepare: must provide at least one image or specify the pod manifest")
		return 1
	}

	s, err := store.NewStore(getDataDir())
	if err != nil {
		stderr("prepare: cannot open store: %v", err)
		return 1
	}

	config, err := getConfig()
	if err != nil {
		stderr("prepare: cannot get configuration: %v", err)
		return 1
	}

	s1img, err := getStage1Hash(s, cmd)
	if err != nil {
		stderr("prepare: %v", err)
		return 1
	}

	fn := &image.Finder{
		S:                  s,
		Ks:                 getKeystore(),
		Headers:            config.AuthPerHost,
		DockerAuth:         config.DockerCredentialsPerRegistry,
		InsecureFlags:      globalFlags.InsecureFlags,
		Debug:              globalFlags.Debug,
		TrustKeysFromHttps: globalFlags.TrustKeysFromHttps,

		StoreOnly: flagStoreOnly,
		NoStore:   flagNoStore,
		WithDeps:  true,
	}
	if err := fn.FindImages(&rktApps); err != nil {
		stderr("prepare: %v", err)
		return 1
	}

	p, err := newPod()
	if err != nil {
		stderr("prepare: error creating new pod: %v", err)
		return 1
	}

	cfg := stage0.CommonConfig{
		Store:       s,
		Stage1Image: *s1img,
		UUID:        p.uuid,
		Debug:       globalFlags.Debug,
	}

	pcfg := stage0.PrepareConfig{
		CommonConfig: &cfg,
		UseOverlay:   !flagNoOverlay && common.SupportsOverlay(),
		PrivateUsers: privateUsers,
	}

	if len(flagPodManifest) > 0 {
		pcfg.PodManifest = flagPodManifest
	} else {
		pcfg.Ports = []types.ExposedPort(flagPorts)
		pcfg.InheritEnv = flagInheritEnv
		pcfg.ExplicitEnv = flagExplicitEnv.Strings()
//.........这里部分代码省略.........

//.........这里部分代码省略.........

	s1img, err := getStage1Hash(s, ts, config)
	if err != nil {
		stderr.Error(err)
		return 254
	}

	fn := &image.Finder{
		S:                  s,
		Ts:                 ts,
		Ks:                 getKeystore(),
		Headers:            config.AuthPerHost,
		DockerAuth:         config.DockerCredentialsPerRegistry,
		InsecureFlags:      globalFlags.InsecureFlags,
		Debug:              globalFlags.Debug,
		TrustKeysFromHTTPS: globalFlags.TrustKeysFromHTTPS,

		StoreOnly: flagStoreOnly,
		NoStore:   flagNoStore,
		WithDeps:  true,
	}
	if err := fn.FindImages(&rktApps); err != nil {
		stderr.PrintE("error finding images", err)
		return 254
	}

	p, err := pkgPod.NewPod(getDataDir())
	if err != nil {
		stderr.PrintE("error creating new pod", err)
		return 254
	}

	cfg := stage0.CommonConfig{
		DataDir:     getDataDir(),
		Store:       s,
		TreeStore:   ts,
		Stage1Image: *s1img,
		UUID:        p.UUID,
		Debug:       globalFlags.Debug,
	}

	ovlOk := true
	if err := common.PathSupportsOverlay(getDataDir()); err != nil {
		if oerr, ok := err.(common.ErrOverlayUnsupported); ok {
			stderr.Printf("disabling overlay support: %q", oerr.Error())
			ovlOk = false
		} else {
			stderr.PrintE("error determining overlay support", err)
			return 254
		}
	}

	pcfg := stage0.PrepareConfig{
		CommonConfig:       &cfg,
		UseOverlay:         !flagNoOverlay && ovlOk,
		PrivateUsers:       privateUsers,
		SkipTreeStoreCheck: globalFlags.InsecureFlags.SkipOnDiskCheck(),
	}

	if len(flagPodManifest) > 0 {
		pcfg.PodManifest = flagPodManifest
	} else {
		pcfg.Ports = []types.ExposedPort(flagPorts)
		pcfg.InheritEnv = flagInheritEnv
		pcfg.ExplicitEnv = flagExplicitEnv.Strings()
		pcfg.EnvFromFile = flagEnvFromFile.Strings()
		pcfg.Apps = &rktApps
	}

	if globalFlags.Debug {
		stage0.InitDebug()
	}

	keyLock, err := lock.SharedKeyLock(lockDir(), common.PrepareLock)
	if err != nil {
		stderr.PrintE("cannot get shared prepare lock", err)
		return 254
	}
	if err = stage0.Prepare(pcfg, p.Path(), p.UUID); err != nil {
		stderr.PrintE("error setting up stage0", err)
		keyLock.Close()
		return 254
	}
	keyLock.Close()

	if err := p.Sync(); err != nil {
		stderr.PrintE("error syncing pod data", err)
		return 254
	}

	if err := p.ToPrepared(); err != nil {
		stderr.PrintE("error transitioning to prepared", err)
		return 254
	}

	os.Stdout = origStdout // restore output in case of --quiet
	stdout.Printf("%s", p.UUID.String())

	return 0
}