Golang kvm.GetNetworkDescriptions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/stage1/init/kvm.GetNetworkDescriptions函数的典型用法代码示例。如果您正苦于以下问题：Golang GetNetworkDescriptions函数的具体用法？Golang GetNetworkDescriptions怎么用？Golang GetNetworkDescriptions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GetNetworkDescriptions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: KvmNetworkingToSystemd

// KvmNetworkingToSystemd generates systemd unit files for a pod according to network configuration
func KvmNetworkingToSystemd(p *stage1commontypes.Pod, n *networking.Networking) error {
	podRoot := common.Stage1RootfsPath(p.Root)

	// networking
	netDescriptions := kvm.GetNetworkDescriptions(n)
	if err := kvm.GenerateNetworkInterfaceUnits(filepath.Join(podRoot, stage1initcommon.UnitsDir), netDescriptions); err != nil {
		return errwrap.Wrap(errors.New("failed to transform networking to units"), err)
	}

	return nil
}

开发者ID:nhlfr，项目名称:rkt，代码行数:12，代码来源:kvm.go

示例2: KvmPodToSystemd

// KvmPodToSystemd generates systemd unit files for a pod according to the manifest and network configuration
func KvmPodToSystemd(p *stage1commontypes.Pod, n *networking.Networking) error {
	podRoot := common.Stage1RootfsPath(p.Root)

	// networking
	netDescriptions := kvm.GetNetworkDescriptions(n)
	if err := kvm.GenerateNetworkInterfaceUnits(filepath.Join(podRoot, stage1initcommon.UnitsDir), netDescriptions); err != nil {
		return errwrap.Wrap(errors.New("failed to transform networking to units"), err)
	}

	// volumes
	// prepare all applications names to become dependency for mount units
	// all host-shared folder has to become available before applications starts
	appNames := []types.ACName{}
	for _, runtimeApp := range p.Manifest.Apps {
		appNames = append(appNames, runtimeApp.Name)
	}
	// mount host volumes through some remote file system e.g. 9p to /mnt/volumeName location
	// order is important here: PodToSystemHostMountUnits prepares folders that are checked by each appToSystemdMountUnits later
	if err := stage1initcommon.PodToSystemdHostMountUnits(podRoot, p.Manifest.Volumes, appNames, stage1initcommon.UnitsDir); err != nil {
		return errwrap.Wrap(errors.New("failed to transform pod volumes into mount units"), err)
	}

	return nil
}

开发者ID:sinfomicien，项目名称:rkt，代码行数:25，代码来源:kvm.go

示例3: getArgsEnv

// getArgsEnv returns the nspawn or lkvm args and env according to the flavor used
func getArgsEnv(p *stage1commontypes.Pod, flavor string, debug bool, n *networking.Networking) ([]string, []string, error) {
	var args []string
	env := os.Environ()

	// We store the pod's flavor so we can later garbage collect it correctly
	if err := os.Symlink(flavor, filepath.Join(p.Root, stage1initcommon.FlavorFile)); err != nil {
		return nil, nil, errwrap.Wrap(errors.New("failed to create flavor symlink"), err)
	}

	// set hostname inside pod
	// According to systemd manual (https://www.freedesktop.org/software/systemd/man/hostname.html) :
	// "The /etc/hostname file configures the name of the local system that is set
	// during boot using the sethostname system call"
	if hostname == "" {
		hostname = stage1initcommon.GetMachineID(p)
	}
	hostnamePath := filepath.Join(common.Stage1RootfsPath(p.Root), "etc/hostname")
	if err := ioutil.WriteFile(hostnamePath, []byte(hostname), 0644); err != nil {
		return nil, nil, fmt.Errorf("error writing %s, %s", hostnamePath, err)
	}

	switch flavor {
	case "kvm":
		if privateUsers != "" {
			return nil, nil, fmt.Errorf("flag --private-users cannot be used with an lkvm stage1")
		}

		// kernel and lkvm are relative path, because init has /var/lib/rkt/..../uuid as its working directory
		// TODO: move to path.go
		kernelPath := filepath.Join(common.Stage1RootfsPath(p.Root), "bzImage")
		lkvmPath := filepath.Join(common.Stage1RootfsPath(p.Root), "lkvm")
		netDescriptions := kvm.GetNetworkDescriptions(n)
		lkvmNetArgs, err := kvm.GetKVMNetArgs(netDescriptions)
		if err != nil {
			return nil, nil, err
		}

		cpu, mem := kvm.GetAppsResources(p.Manifest.Apps)

		kernelParams := []string{
			"console=hvc0",
			"init=/usr/lib/systemd/systemd",
			"no_timer_check",
			"noreplace-smp",
			"systemd.default_standard_error=journal+console",
			"systemd.default_standard_output=journal+console",
			// "systemd.default_standard_output=tty",
			"tsc=reliable",
			"MACHINEID=" + p.UUID.String(),
		}

		if debug {
			kernelParams = append(kernelParams, []string{
				"debug",
				"systemd.log_level=debug",
				"systemd.show_status=true",
				// "systemd.confirm_spawn=true",
			}...)
		} else {
			kernelParams = append(kernelParams, "quiet")
		}

		args = append(args, []string{
			"./" + lkvmPath, // relative path
			"run",
			"--name", "rkt-" + p.UUID.String(),
			"--no-dhcp", // speed bootup
			"--cpu", strconv.FormatInt(cpu, 10),
			"--mem", strconv.FormatInt(mem, 10),
			"--console=virtio",
			"--kernel", kernelPath,
			"--disk", "stage1/rootfs", // relative to run/pods/uuid dir this is a place where systemd resides
			// MACHINEID will be available as environment variable
			"--params", strings.Join(kernelParams, " "),
		}...,
		)
		args = append(args, lkvmNetArgs...)

		if debug {
			args = append(args, "--debug")
		}

		// host volume sharing with 9p
		nsargs := stage1initcommon.VolumesToKvmDiskArgs(p.Manifest.Volumes)
		args = append(args, nsargs...)

		// lkvm requires $HOME to be defined,
		// see https://github.com/coreos/rkt/issues/1393
		if os.Getenv("HOME") == "" {
			env = append(env, "HOME=/root")
		}

		return args, env, nil

	case "coreos":
		args = append(args, filepath.Join(common.Stage1RootfsPath(p.Root), interpBin))
		args = append(args, filepath.Join(common.Stage1RootfsPath(p.Root), nspawnBin))
		args = append(args, "--boot") // Launch systemd in the pod

//.........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4: getArgsEnv

// getArgsEnv returns the nspawn or lkvm args and env according to the flavor used
func getArgsEnv(p *Pod, flavor string, debug bool, n *networking.Networking) ([]string, []string, error) {
	args := []string{}
	env := os.Environ()

	// We store the pod's flavor so we can later garbage collect it correctly
	if err := os.Symlink(flavor, filepath.Join(p.Root, flavorFile)); err != nil {
		return nil, nil, fmt.Errorf("failed to create flavor symlink: %v", err)
	}

	switch flavor {
	case "kvm":
		if privateUsers != "" {
			return nil, nil, fmt.Errorf("flag --private-users cannot be used with an lkvm stage1")
		}

		// kernel and lkvm are relative path, because init has /var/lib/rkt/..../uuid as its working directory
		// TODO: move to path.go
		kernelPath := filepath.Join(common.Stage1RootfsPath(p.Root), "bzImage")
		lkvmPath := filepath.Join(common.Stage1RootfsPath(p.Root), "lkvm")
		netDescriptions := kvm.GetNetworkDescriptions(n)
		lkvmNetArgs, kernelNetParams, err := kvm.GetKVMNetArgs(netDescriptions)
		if err != nil {
			return nil, nil, err
		}

		// TODO: base on resource isolators
		cpu := 1
		mem := 128

		kernelParams := []string{
			"console=hvc0",
			"init=/usr/lib/systemd/systemd",
			"no_timer_check",
			"noreplace-smp",
			"systemd.default_standard_error=journal+console",
			"systemd.default_standard_output=journal+console",
			strings.Join(kernelNetParams, " "),
			// "systemd.default_standard_output=tty",
			"tsc=reliable",
			"MACHINEID=" + p.UUID.String(),
		}

		if debug {
			kernelParams = append(kernelParams, []string{
				"debug",
				"systemd.log_level=debug",
				"systemd.show_status=true",
				// "systemd.confirm_spawn=true",
			}...)
		} else {
			kernelParams = append(kernelParams, "quiet")
		}

		args = append(args, []string{
			"./" + lkvmPath, // relative path
			"run",
			"--name", "rkt-" + p.UUID.String(),
			"--no-dhcp", // speed bootup
			"--cpu", strconv.Itoa(cpu),
			"--mem", strconv.Itoa(mem),
			"--console=virtio",
			"--kernel", kernelPath,
			"--disk", "stage1/rootfs", // relative to run/pods/uuid dir this is a place where systemd resides
			// MACHINEID will be available as environment variable
			"--params", strings.Join(kernelParams, " "),
		}...,
		)
		args = append(args, lkvmNetArgs...)

		if debug {
			args = append(args, "--debug")
		}

		// host volume sharing with 9p
		nsargs := kvm.VolumesToKvmDiskArgs(p.Manifest.Volumes)
		args = append(args, nsargs...)

		// lkvm requires $HOME to be defined,
		// see https://github.com/coreos/rkt/issues/1393
		if os.Getenv("HOME") == "" {
			env = append(env, "HOME=/root")
		}

		return args, env, nil

	case "coreos":
		args = append(args, filepath.Join(common.Stage1RootfsPath(p.Root), interpBin))
		args = append(args, filepath.Join(common.Stage1RootfsPath(p.Root), nspawnBin))
		args = append(args, "--boot") // Launch systemd in the pod

		if context := os.Getenv(common.SELinuxContext); context != "" {
			args = append(args, fmt.Sprintf("-Z%s", context))
		}

		if machinedRegister() {
			args = append(args, fmt.Sprintf("--register=true"))
		} else {
			args = append(args, fmt.Sprintf("--register=false"))
		}
//.........这里部分代码省略.........

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

示例5: getArgsEnv

// getArgsEnv returns the nspawn or lkvm args and env according to the flavor
// as the first two return values respectively.
func getArgsEnv(p *stage1commontypes.Pod, flavor string, canMachinedRegister bool, debug bool, n *networking.Networking, insecureOptions stage1initcommon.Stage1InsecureOptions) ([]string, []string, error) {
	var args []string
	env := os.Environ()

	// We store the pod's flavor so we can later garbage collect it correctly
	if err := os.Symlink(flavor, filepath.Join(p.Root, stage1initcommon.FlavorFile)); err != nil {
		return nil, nil, errwrap.Wrap(errors.New("failed to create flavor symlink"), err)
	}

	// set hostname inside pod
	// According to systemd manual (https://www.freedesktop.org/software/systemd/man/hostname.html) :
	// "The /etc/hostname file configures the name of the local system that is set
	// during boot using the sethostname system call"
	if hostname == "" {
		hostname = stage1initcommon.GetMachineID(p)
	}
	hostnamePath := filepath.Join(common.Stage1RootfsPath(p.Root), "etc/hostname")
	if err := ioutil.WriteFile(hostnamePath, []byte(hostname), 0644); err != nil {
		return nil, nil, fmt.Errorf("error writing %s, %s", hostnamePath, err)
	}

	// systemd-nspawn needs /etc/machine-id to link the container's journal
	// to the host. Since systemd-v230, /etc/machine-id is mandatory, see
	// https://github.com/systemd/systemd/commit/e01ff70a77e781734e1e73a2238af2e9bf7967a8
	mPath := filepath.Join(common.Stage1RootfsPath(p.Root), "etc", "machine-id")
	machineID := strings.Replace(p.UUID.String(), "-", "", -1)

	switch flavor {
	case "kvm":
		if privateUsers != "" {
			return nil, nil, fmt.Errorf("flag --private-users cannot be used with an lkvm stage1")
		}

		// kernel and hypervisor binaries are located relative to the working directory
		// of init (/var/lib/rkt/..../uuid)
		// TODO: move to path.go
		kernelPath := filepath.Join(common.Stage1RootfsPath(p.Root), "bzImage")
		netDescriptions := kvm.GetNetworkDescriptions(n)

		cpu, mem := kvm.GetAppsResources(p.Manifest.Apps)

		// Parse hypervisor
		hv, err := KvmCheckHypervisor(common.Stage1RootfsPath(p.Root))
		if err != nil {
			return nil, nil, err
		}

		// Set start command for hypervisor
		StartCmd := hvlkvm.StartCmd
		switch hv {
		case "lkvm":
			StartCmd = hvlkvm.StartCmd
		case "qemu":
			StartCmd = hvqemu.StartCmd
		default:
			return nil, nil, fmt.Errorf("unrecognized hypervisor")
		}

		hvStartCmd := StartCmd(
			common.Stage1RootfsPath(p.Root),
			p.UUID.String(),
			kernelPath,
			netDescriptions,
			cpu,
			mem,
			debug,
		)

		if hvStartCmd == nil {
			return nil, nil, fmt.Errorf("no hypervisor")
		}

		args = append(args, hvStartCmd...)

		// lkvm requires $HOME to be defined,
		// see https://github.com/coreos/rkt/issues/1393
		if os.Getenv("HOME") == "" {
			env = append(env, "HOME=/root")
		}

		if err := linkJournal(common.Stage1RootfsPath(p.Root), machineID); err != nil {
			return nil, nil, errwrap.Wrap(errors.New("error linking pod's journal"), err)
		}

		// use only dynamic libraries provided in the image
		// from systemd v231 there's a new internal libsystemd-shared-v231.so
		// which is present in /usr/lib/systemd
		env = append(env, "LD_LIBRARY_PATH="+filepath.Join(common.Stage1RootfsPath(p.Root), "usr/lib/systemd"))

		return args, env, nil

	case "coreos":
		args = append(args, filepath.Join(common.Stage1RootfsPath(p.Root), interpBin))
		args = append(args, filepath.Join(common.Stage1RootfsPath(p.Root), nspawnBin))
		args = append(args, "--boot")             // Launch systemd in the pod
		args = append(args, "--notify-ready=yes") // From systemd v231

		if context := os.Getenv(common.EnvSELinuxContext); context != "" {
//.........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

注：本文中的github.com/coreos/rkt/stage1/init/kvm.GetNetworkDescriptions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。