Golang stage0.Prepare函数代码示例

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本文整理汇总了Golang中github.com/coreos/rkt/stage0.Prepare函数的典型用法代码示例。如果您正苦于以下问题：Golang Prepare函数的具体用法？Golang Prepare怎么用？Golang Prepare使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了Prepare函数的7个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: runPrepare

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.........

开发者ID:krieg，项目名称:rkt，代码行数:101，代码来源:prepare.go

示例2: runRun

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.........

开发者ID:fdserr，项目名称:rkt，代码行数:101，代码来源:run.go

示例3: runRun


//.........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()

开发者ID:yanghongkjxy，项目名称:rkt，代码行数:67，代码来源:run.go

示例4: runRun


//.........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

开发者ID:atd-schubert，项目名称:rkt，代码行数:67，代码来源:run.go

示例5: runPrepare

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.........

开发者ID:matomesc，项目名称:rkt，代码行数:101，代码来源:prepare.go

示例6: runAppSandbox

func runAppSandbox(cmd *cobra.Command, args []string) int {
	s, err := imagestore.NewStore(storeDir())
	if err != nil {
		stderr.PrintE("cannot open store", err)
		return 1
	}

	ts, err := treestore.NewStore(treeStoreDir(), s)
	if err != nil {
		stderr.PrintE("cannot open treestore", err)
		return 1
	}

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

	s1img, err := getStage1Hash(s, ts, config)
	if err != nil {
		stderr.Error(err)
		return 1
	}

	p, err := pod.NewPod(getDataDir())
	if err != nil {
		stderr.PrintE("error creating new pod", err)
		return 1
	}

	if flagUUIDFileSave != "" {
		if err := pod.WriteUUIDToFile(p.UUID, flagUUIDFileSave); err != nil {
			stderr.PrintE("error saving pod UUID to file", err)
			return 1
		}
	}

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

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

	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 1
		}
	}

	useOverlay := !flagNoOverlay && ovlOk

	pcfg := stage0.PrepareConfig{
		CommonConfig:       &cfg,
		UseOverlay:         useOverlay,
		PrivateUsers:       user.NewBlankUidRange(),
		SkipTreeStoreCheck: globalFlags.InsecureFlags.SkipOnDiskCheck(),
		Apps:               &rktApps,
		Ports:              []types.ExposedPort(flagAppPorts),
		UserAnnotations:    parseAnnotations(&flagAnnotations),
		UserLabels:         parseLabels(&flagLabels),
	}

	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()

	// get the lock fd for run
//.........这里部分代码省略.........

开发者ID:intelsdi-x，项目名称:rkt，代码行数:101，代码来源:app_sandbox.go

示例7: runPrepare

func runPrepare(cmd *cobra.Command, args []string) (exit int) {
	var err error
	origStdout := os.Stdout
	privateUsers := user.NewBlankUidRange()
	if flagQuiet {
		if os.Stdout, err = os.Open("/dev/null"); err != nil {
			stderr.PrintE("unable to open /dev/null", err)
			return 254
		}
	}

	if flagStoreOnly && flagNoStore {
		stderr.Print("both --store-only and --no-store specified")
		return 254
	}

	if flagPrivateUsers {
		if !common.SupportsUserNS() {
			stderr.Print("--private-users is not supported, kernel compiled without user namespace support")
			return 254
		}
		privateUsers.SetRandomUidRange(user.DefaultRangeCount)
	}

	if err = parseApps(&rktApps, args, cmd.Flags(), true); err != nil {
		stderr.PrintE("error parsing app image arguments", err)
		return 254
	}

	if len(flagPodManifest) > 0 && (rktApps.Count() > 0 ||
		(*appsVolume)(&rktApps).String() != "" || (*appMount)(&rktApps).String() != "" ||
		len(flagPorts) > 0 || flagStoreOnly || flagNoStore ||
		flagInheritEnv || !flagExplicitEnv.IsEmpty() || !flagEnvFromFile.IsEmpty()) {
		stderr.Print("conflicting flags set with --pod-manifest (see --help)")
		return 254
	}

	if rktApps.Count() < 1 && len(flagPodManifest) == 0 {
		stderr.Print("must provide at least one image or specify the pod manifest")
		return 254
	}

	s, err := imagestore.NewStore(storeDir())
	if err != nil {
		stderr.PrintE("cannot open store", err)
		return 254
	}

	ts, err := treestore.NewStore(treeStoreDir(), s)
	if err != nil {
		stderr.PrintE("cannot open treestore", err)
		return 254
	}

	config, err := getConfig()
	if err != nil {
		stderr.PrintE("cannot get configuration", err)
		return 254
	}

	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,
	}

//.........这里部分代码省略.........

开发者ID:intelsdi-x，项目名称:rkt，代码行数:101，代码来源:prepare.go

注：本文中的github.com/coreos/rkt/stage0.Prepare函数示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。