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Golang networking.Setup函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Golang中github.com/coreos/rkt/networking.Setup函数的典型用法代码示例。如果您正苦于以下问题：Golang Setup函数的具体用法？Golang Setup怎么用？Golang Setup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Setup函数的5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: stage1

func stage1() int {
	uuid, err := types.NewUUID(flag.Arg(0))
	if err != nil {
		log.PrintE("UUID is missing or malformed", err)
		return 1
	}

	root := "."
	p, err := stage1commontypes.LoadPod(root, uuid)
	if err != nil {
		log.PrintE("failed to load pod", err)
		return 1
	}

	// set close-on-exec flag on RKT_LOCK_FD so it gets correctly closed when invoking
	// network plugins
	lfd, err := common.GetRktLockFD()
	if err != nil {
		log.PrintE("failed to get rkt lock fd", err)
		return 1
	}

	if err := sys.CloseOnExec(lfd, true); err != nil {
		log.PrintE("failed to set FD_CLOEXEC on rkt lock", err)
		return 1
	}

	mirrorLocalZoneInfo(p.Root)

	flavor, _, err := stage1initcommon.GetFlavor(p)
	if err != nil {
		log.PrintE("failed to get stage1 flavor", err)
		return 3
	}

	var n *networking.Networking
	if netList.Contained() {
		fps, err := forwardedPorts(p)
		if err != nil {
			log.Error(err)
			return 6
		}

		n, err = networking.Setup(root, p.UUID, fps, netList, localConfig, flavor, debug)
		if err != nil {
			log.PrintE("failed to setup network", err)
			return 6
		}

		if err = n.Save(); err != nil {
			log.PrintE("failed to save networking state", err)
			n.Teardown(flavor, debug)
			return 6
		}

		if len(mdsToken) > 0 {
			hostIP, err := n.GetDefaultHostIP()
			if err != nil {
				log.PrintE("failed to get default Host IP", err)
				return 6
			}

			p.MetadataServiceURL = common.MetadataServicePublicURL(hostIP, mdsToken)
		}
	} else {
		if flavor == "kvm" {
			log.Print("flavor kvm requires private network configuration (try --net)")
			return 6
		}
		if len(mdsToken) > 0 {
			p.MetadataServiceURL = common.MetadataServicePublicURL(localhostIP, mdsToken)
		}
	}

	if err = stage1initcommon.WriteDefaultTarget(p); err != nil {
		log.PrintE("failed to write default.target", err)
		return 2
	}

	if err = stage1initcommon.WritePrepareAppTemplate(p); err != nil {
		log.PrintE("failed to write prepare-app service template", err)
		return 2
	}

	if err := stage1initcommon.SetJournalPermissions(p); err != nil {
		log.PrintE("warning: error setting journal ACLs, you'll need root to read the pod journal", err)
	}

	if flavor == "kvm" {
		if err := KvmPodToSystemd(p, n); err != nil {
			log.PrintE("failed to configure systemd for kvm", err)
			return 2
		}
	}

	if err = stage1initcommon.PodToSystemd(p, interactive, flavor, privateUsers); err != nil {
		log.PrintE("failed to configure systemd", err)
		return 2
	}

//.........这里部分代码省略.........
开发者ID:carriercomm，项目名称:rkt，代码行数:101，代码来源:init.go


示例2: stage1

func stage1() int {
	uuid, err := types.NewUUID(flag.Arg(0))
	if err != nil {
		log.FatalE("UUID is missing or malformed", err)
	}

	root := "."
	p, err := stage1commontypes.LoadPod(root, uuid)
	if err != nil {
		log.FatalE("failed to load pod", err)
	}

	// set close-on-exec flag on RKT_LOCK_FD so it gets correctly closed when invoking
	// network plugins
	lfd, err := common.GetRktLockFD()
	if err != nil {
		log.FatalE("failed to get rkt lock fd", err)
	}

	if err := sys.CloseOnExec(lfd, true); err != nil {
		log.FatalE("failed to set FD_CLOEXEC on rkt lock", err)
	}

	mirrorLocalZoneInfo(p.Root)

	flavor, _, err := stage1initcommon.GetFlavor(p)
	if err != nil {
		log.FatalE("failed to get stage1 flavor", err)
	}

	var n *networking.Networking
	if netList.Contained() {
		fps, err := commonnet.ForwardedPorts(p.Manifest)
		if err != nil {
			log.FatalE("error initializing forwarding ports", err)
		}

		noDNS := dnsConfMode.Pairs["resolv"] != "default" // force ignore CNI DNS results
		n, err = networking.Setup(root, p.UUID, fps, netList, localConfig, flavor, noDNS, debug)
		if err != nil {
			log.FatalE("failed to setup network", err)
		}

		if err = n.Save(); err != nil {
			log.PrintE("failed to save networking state", err)
			n.Teardown(flavor, debug)
			return 254
		}

		if len(mdsToken) > 0 {
			hostIP, err := n.GetForwardableNetHostIP()
			if err != nil {
				log.FatalE("failed to get default Host IP", err)
			}

			p.MetadataServiceURL = common.MetadataServicePublicURL(hostIP, mdsToken)
		}
	} else {
		if flavor == "kvm" {
			log.Fatal("flavor kvm requires private network configuration (try --net)")
		}
		if len(mdsToken) > 0 {
			p.MetadataServiceURL = common.MetadataServicePublicURL(localhostIP, mdsToken)
		}
	}

	insecureOptions := stage1initcommon.Stage1InsecureOptions{
		DisablePaths:        disablePaths,
		DisableCapabilities: disableCapabilities,
		DisableSeccomp:      disableSeccomp,
	}

	mnt := fs.NewLoggingMounter(
		fs.MounterFunc(syscall.Mount),
		fs.UnmounterFunc(syscall.Unmount),
		diag.Printf,
	)

	if dnsConfMode.Pairs["resolv"] == "host" {
		stage1initcommon.UseHostResolv(mnt, root)
	}

	if dnsConfMode.Pairs["hosts"] == "host" {
		stage1initcommon.UseHostHosts(mnt, root)
	}

	if mutable {
		if err = stage1initcommon.MutableEnv(p); err != nil {
			log.FatalE("cannot initialize mutable environment", err)
		}
	} else {
		if err = stage1initcommon.ImmutableEnv(p, interactive, privateUsers, insecureOptions); err != nil {
			log.FatalE("cannot initialize immutable environment", err)
		}
	}

	if err := stage1initcommon.SetJournalPermissions(p); err != nil {
		log.PrintE("warning: error setting journal ACLs, you'll need root to read the pod journal", err)
	}

//.........这里部分代码省略.........
开发者ID:joshix，项目名称:rkt，代码行数:101，代码来源:init.go


示例3: stage1

func stage1() int {
	uuid, err := types.NewUUID(flag.Arg(0))
	if err != nil {
		fmt.Fprintln(os.Stderr, "UUID is missing or malformed")
		return 1
	}

	root := "."
	p, err := LoadPod(root, uuid)
	if err != nil {
		fmt.Fprintf(os.Stderr, "Failed to load pod: %v\n", err)
		return 1
	}

	// set close-on-exec flag on RKT_LOCK_FD so it gets correctly closed when invoking
	// network plugins
	lfd, err := common.GetRktLockFD()
	if err != nil {
		fmt.Fprintf(os.Stderr, "Failed to get rkt lock fd: %v\n", err)
		return 1
	}

	if err := sys.CloseOnExec(lfd, true); err != nil {
		fmt.Fprintf(os.Stderr, "Failed to set FD_CLOEXEC on rkt lock: %v\n", err)
		return 1
	}

	mirrorLocalZoneInfo(p.Root)

	if privNet {
		fps, err := forwardedPorts(p)
		if err != nil {
			fmt.Fprintln(os.Stderr, err.Error())
			return 6
		}

		n, err := networking.Setup(root, p.UUID, fps)
		if err != nil {
			fmt.Fprintf(os.Stderr, "Failed to setup network: %v\n", err)
			return 6
		}
		defer n.Teardown()

		if err = n.Save(); err != nil {
			fmt.Fprintf(os.Stderr, "Failed to save networking state %v\n", err)
			return 6
		}

		p.MetadataServiceURL = common.MetadataServicePublicURL(n.GetDefaultHostIP())

		if err = registerPod(p, n.GetDefaultIP()); err != nil {
			fmt.Fprintf(os.Stderr, "Failed to register pod: %v\n", err)
			return 6
		}
		defer unregisterPod(p)
	}

	if err = p.PodToSystemd(interactive); err != nil {
		fmt.Fprintf(os.Stderr, "Failed to configure systemd: %v\n", err)
		return 2
	}

	args, env, err := getArgsEnv(p, debug)
	if err != nil {
		fmt.Fprintf(os.Stderr, "Failed to get execution parameters: %v\n", err)
		return 3
	}

	var execFn func() error

	if privNet {
		cmd := exec.Cmd{
			Path:   args[0],
			Args:   args,
			Stdin:  os.Stdin,
			Stdout: os.Stdout,
			Stderr: os.Stderr,
			Env:    env,
		}
		execFn = cmd.Run
	} else {
		execFn = func() error {
			return syscall.Exec(args[0], args, env)
		}
	}

	err = withClearedCloExec(lfd, execFn)
	if err != nil {
		fmt.Fprintf(os.Stderr, "Failed to execute nspawn: %v\n", err)
		return 5
	}

	return 0
}
开发者ID:balagopalraj，项目名称:clearlinux，代码行数:94，代码来源:init.go


示例4: stage1

func stage1() int {
	uuid, err := types.NewUUID(flag.Arg(0))
	if err != nil {
		fmt.Fprintln(os.Stderr, "UUID is missing or malformed")
		return 1
	}

	root := "."
	p, err := LoadPod(root, uuid)
	if err != nil {
		fmt.Fprintf(os.Stderr, "Failed to load pod: %v\n", err)
		return 1
	}

	// set close-on-exec flag on RKT_LOCK_FD so it gets correctly closed when invoking
	// network plugins
	lfd, err := common.GetRktLockFD()
	if err != nil {
		fmt.Fprintf(os.Stderr, "Failed to get rkt lock fd: %v\n", err)
		return 1
	}

	if err := sys.CloseOnExec(lfd, true); err != nil {
		fmt.Fprintf(os.Stderr, "Failed to set FD_CLOEXEC on rkt lock: %v\n", err)
		return 1
	}

	mirrorLocalZoneInfo(p.Root)

	flavor, _, err := p.getFlavor()
	if err != nil {
		fmt.Fprintf(os.Stderr, "Failed to get stage1 flavor: %v\n", err)
		return 3
	}

	var n *networking.Networking
	if privNet.Any() {
		fps, err := forwardedPorts(p)
		if err != nil {
			fmt.Fprintln(os.Stderr, err.Error())
			return 6
		}

		n, err = networking.Setup(root, p.UUID, fps, privNet, localConfig, flavor)
		if err != nil {
			fmt.Fprintf(os.Stderr, "Failed to setup network: %v\n", err)
			return 6
		}

		if err = n.Save(); err != nil {
			fmt.Fprintf(os.Stderr, "Failed to save networking state %v\n", err)
			n.Teardown(flavor)
			return 6
		}

		if len(mdsToken) > 0 {
			hostIP, err := n.GetDefaultHostIP()
			if err != nil {
				fmt.Fprintf(os.Stderr, "Failed to get default Host IP: %v\n", err)
				return 6
			}

			p.MetadataServiceURL = common.MetadataServicePublicURL(hostIP, mdsToken)
		}
	} else {
		if flavor == "kvm" {
			fmt.Fprintf(os.Stderr, "Flavor kvm requires private network configuration (try --private-net).\n")
			return 6
		}
		if len(mdsToken) > 0 {
			p.MetadataServiceURL = common.MetadataServicePublicURL(localhostIP, mdsToken)
		}
	}

	if err = p.WritePrepareAppTemplate(); err != nil {
		fmt.Fprintf(os.Stderr, "Failed to write prepare-app service template: %v\n", err)
		return 2
	}

	if err = p.PodToSystemd(interactive, flavor); err != nil {
		fmt.Fprintf(os.Stderr, "Failed to configure systemd: %v\n", err)
		return 2
	}

	args, env, err := getArgsEnv(p, flavor, debug, n)
	if err != nil {
		fmt.Fprintf(os.Stderr, "%v\n", err)
		return 3
	}

	// create a separate mount namespace so the cgroup filesystems
	// are unmounted when exiting the pod
	if err := syscall.Unshare(syscall.CLONE_NEWNS); err != nil {
		log.Fatalf("error unsharing: %v", err)
	}

	// we recursively make / a "shared and slave" so mount events from the
	// new namespace don't propagate to the host namespace but mount events
	// from the host propagate to the new namespace and are forwarded to
	// its peer group
//.........这里部分代码省略.........
开发者ID:ParthDesai，项目名称:rkt，代码行数:101，代码来源:init.go


示例5: stage1

func stage1() int {
	uuid, err := types.NewUUID(flag.Arg(0))
	if err != nil {
		fmt.Fprintln(os.Stderr, "UUID is missing or malformed")
		return 1
	}

	root := "."
	p, err := LoadPod(root, uuid)
	if err != nil {
		fmt.Fprintf(os.Stderr, "Failed to load pod: %v\n", err)
		return 1
	}

	// set close-on-exec flag on RKT_LOCK_FD so it gets correctly closed when invoking
	// network plugins
	lfd, err := common.GetRktLockFD()
	if err != nil {
		fmt.Fprintf(os.Stderr, "Failed to get rkt lock fd: %v\n", err)
		return 1
	}

	if err := sys.CloseOnExec(lfd, true); err != nil {
		fmt.Fprintf(os.Stderr, "Failed to set FD_CLOEXEC on rkt lock: %v\n", err)
		return 1
	}

	mirrorLocalZoneInfo(p.Root)

	if privNet.Any() {
		fps, err := forwardedPorts(p)
		if err != nil {
			fmt.Fprintln(os.Stderr, err.Error())
			return 6
		}

		n, err := networking.Setup(root, p.UUID, fps, privNet)
		if err != nil {
			fmt.Fprintf(os.Stderr, "Failed to setup network: %v\n", err)
			return 6
		}
		defer n.Teardown()

		if err = n.Save(); err != nil {
			fmt.Fprintf(os.Stderr, "Failed to save networking state %v\n", err)
			return 6
		}

		hostIP, err := n.GetDefaultHostIP()
		if err != nil {
			fmt.Fprintf(os.Stderr, "Failed to get default Host IP: %v\n", err)
			return 6
		}

		mdsToken, err := generateMDSToken()
		if err != nil {
			fmt.Fprintf(os.Stderr, "Failed to generate MDS token: %v", err)
			return 8
		}

		p.MetadataServiceURL = common.MetadataServicePublicURL(hostIP, mdsToken)

		if err = registerPod(p, mdsToken); err != nil {
			fmt.Fprintf(os.Stderr, "Failed to register pod: %v\n", err)
			return 8
		}

		defer unregisterPod(p)
	}

	flavor, systemdStage1Version, err := p.getFlavor()
	if err != nil {
		fmt.Fprintf(os.Stderr, "Failed to get stage1 flavor: %v\n", err)
		return 3
	}

	if err = p.WritePrepareAppTemplate(systemdStage1Version); err != nil {
		fmt.Fprintf(os.Stderr, "Failed to write prepare-app service template: %v\n", err)
		return 2
	}

	if err = p.PodToSystemd(interactive); err != nil {
		fmt.Fprintf(os.Stderr, "Failed to configure systemd: %v\n", err)
		return 2
	}

	args, env, err := getArgsEnv(p, flavor, systemdStage1Version, debug)
	if err != nil {
		fmt.Fprintf(os.Stderr, "%v\n", err)
		return 3
	}

	appHashes := p.GetAppHashes()
	s1Root := common.Stage1RootfsPath(p.Root)
	machineID := p.GetMachineID()
	subcgroup, err := getContainerSubCgroup(machineID)
	if err == nil {
		if err := cgroup.CreateCgroups(s1Root, subcgroup, appHashes); err != nil {
			fmt.Fprintf(os.Stderr, "Error creating cgroups: %v\n", err)
			return 5
//.........这里部分代码省略.........
开发者ID:jsarenik，项目名称:rkt，代码行数:101，代码来源:init.go



注：本文中的github.com/coreos/rkt/networking.Setup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。

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