Golang graphdriver.GetFSMagic函數代碼示例

本文整理匯總了Golang中github.com/docker/docker/daemon/graphdriver.GetFSMagic函數的典型用法代碼示例。如果您正苦於以下問題：Golang GetFSMagic函數的具體用法？Golang GetFSMagic怎麽用？Golang GetFSMagic使用的例子？那麽, 這裏精選的函數代碼示例或許可以為您提供幫助。

在下文中一共展示了GetFSMagic函數的11個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: Init

// Init returns a new AUFS driver.
// An error is returned if AUFS is not supported.
func Init(root string, options []string, uidMaps, gidMaps []idtools.IDMap) (graphdriver.Driver, error) {

	// Try to load the aufs kernel module
	if err := supportsAufs(); err != nil {
		return nil, graphdriver.ErrNotSupported
	}

	fsMagic, err := graphdriver.GetFSMagic(root)
	if err != nil {
		return nil, err
	}
	if fsName, ok := graphdriver.FsNames[fsMagic]; ok {
		backingFs = fsName
	}

	for _, magic := range incompatibleFsMagic {
		if fsMagic == magic {
			return nil, graphdriver.ErrIncompatibleFS
		}
	}

	paths := []string{
		"mnt",
		"diff",
		"layers",
	}

	a := &Driver{
		root:      root,
		uidMaps:   uidMaps,
		gidMaps:   gidMaps,
		pathCache: make(map[string]string),
	}

	rootUID, rootGID, err := idtools.GetRootUIDGID(uidMaps, gidMaps)
	if err != nil {
		return nil, err
	}
	// Create the root aufs driver dir and return
	// if it already exists
	// If not populate the dir structure
	if err := idtools.MkdirAllAs(root, 0700, rootUID, rootGID); err != nil {
		if os.IsExist(err) {
			return a, nil
		}
		return nil, err
	}

	if err := mountpk.MakePrivate(root); err != nil {
		return nil, err
	}

	// Populate the dir structure
	for _, p := range paths {
		if err := idtools.MkdirAllAs(path.Join(root, p), 0700, rootUID, rootGID); err != nil {
			return nil, err
		}
	}
	return a, nil
}

開發者ID:ungureanuvladvictor，項目名稱:docker，代碼行數:62，代碼來源:aufs.go

示例2: Init

// Init returns a new BTRFS driver.
// An error is returned if BTRFS is not supported.
func Init(home string, options []string, uidMaps, gidMaps []idtools.IDMap) (graphdriver.Driver, error) {

	fsMagic, err := graphdriver.GetFSMagic(home)
	if err != nil {
		return nil, err
	}

	if fsMagic != graphdriver.FsMagicBtrfs {
		return nil, graphdriver.ErrPrerequisites
	}

	rootUID, rootGID, err := idtools.GetRootUIDGID(uidMaps, gidMaps)
	if err != nil {
		return nil, err
	}
	if err := idtools.MkdirAllAs(home, 0700, rootUID, rootGID); err != nil {
		return nil, err
	}

	if err := mount.MakePrivate(home); err != nil {
		return nil, err
	}

	driver := &Driver{
		home:    home,
		uidMaps: uidMaps,
		gidMaps: gidMaps,
	}

	return graphdriver.NewNaiveDiffDriver(driver, uidMaps, gidMaps), nil
}

開發者ID:supasate，項目名稱:docker，代碼行數:33，代碼來源:btrfs.go

示例3: Init

// Init creates a driver with the given home and the set of options.
func Init(home string, options []string, uidMaps, gidMaps []idtools.IDMap) (graphdriver.Driver, error) {
	fsMagic, err := graphdriver.GetFSMagic(home)
	if err != nil {
		return nil, err
	}
	if fsName, ok := graphdriver.FsNames[fsMagic]; ok {
		backingFs = fsName
	}

	deviceSet, err := NewDeviceSet(home, true, options, uidMaps, gidMaps)
	if err != nil {
		return nil, err
	}

	if err := mount.MakePrivate(home); err != nil {
		return nil, err
	}

	d := &Driver{
		DeviceSet: deviceSet,
		home:      home,
		uidMaps:   uidMaps,
		gidMaps:   gidMaps,
	}

	return graphdriver.NewNaiveDiffDriver(d, uidMaps, gidMaps), nil
}

開發者ID:jameseggers，項目名稱:docker，代碼行數:28，代碼來源:driver.go

示例4: Init

// Init returns the a native diff driver for overlay filesystem.
// If overlay filesystem is not supported on the host, graphdriver.ErrNotSupported is returned as error.
// If a overlay filesystem is not supported over a existing filesystem then error graphdriver.ErrIncompatibleFS is returned.
func Init(home string, options []string, uidMaps, gidMaps []idtools.IDMap) (graphdriver.Driver, error) {
	opts, err := parseOptions(options)
	if err != nil {
		return nil, err
	}

	if err := supportsOverlay(); err != nil {
		return nil, graphdriver.ErrNotSupported
	}

	// require kernel 4.0.0 to ensure multiple lower dirs are supported
	v, err := kernel.GetKernelVersion()
	if err != nil {
		return nil, err
	}
	if kernel.CompareKernelVersion(*v, kernel.VersionInfo{Kernel: 4, Major: 0, Minor: 0}) < 0 {
		if !opts.overrideKernelCheck {
			return nil, graphdriver.ErrNotSupported
		}
		logrus.Warnf("Using pre-4.0.0 kernel for overlay2, mount failures may require kernel update")
	}

	fsMagic, err := graphdriver.GetFSMagic(home)
	if err != nil {
		return nil, err
	}
	if fsName, ok := graphdriver.FsNames[fsMagic]; ok {
		backingFs = fsName
	}

	// check if they are running over btrfs, aufs, zfs, overlay, or ecryptfs
	switch fsMagic {
	case graphdriver.FsMagicBtrfs, graphdriver.FsMagicAufs, graphdriver.FsMagicZfs, graphdriver.FsMagicOverlay, graphdriver.FsMagicEcryptfs:
		logrus.Errorf("'overlay2' is not supported over %s", backingFs)
		return nil, graphdriver.ErrIncompatibleFS
	}

	rootUID, rootGID, err := idtools.GetRootUIDGID(uidMaps, gidMaps)
	if err != nil {
		return nil, err
	}
	// Create the driver home dir
	if err := idtools.MkdirAllAs(path.Join(home, linkDir), 0700, rootUID, rootGID); err != nil && !os.IsExist(err) {
		return nil, err
	}

	if err := mount.MakePrivate(home); err != nil {
		return nil, err
	}

	d := &Driver{
		home:    home,
		uidMaps: uidMaps,
		gidMaps: gidMaps,
		ctr:     graphdriver.NewRefCounter(graphdriver.NewFsChecker(graphdriver.FsMagicOverlay)),
	}

	return d, nil
}

開發者ID:Raphaeljunior，項目名稱:docker，代碼行數:62，代碼來源:overlay.go

示例5: Init

// Init returns the NaiveDiffDriver, a native diff driver for overlay filesystem.
// If overlay filesystem is not supported on the host, graphdriver.ErrNotSupported is returned as error.
// If a overlay filesystem is not supported over a existing filesystem then error graphdriver.ErrIncompatibleFS is returned.
func Init(home string, options []string, uidMaps, gidMaps []idtools.IDMap) (graphdriver.Driver, error) {

	if err := supportsOverlay(); err != nil {
		return nil, graphdriver.ErrNotSupported
	}

	fsMagic, err := graphdriver.GetFSMagic(home)
	if err != nil {
		return nil, err
	}
	if fsName, ok := graphdriver.FsNames[fsMagic]; ok {
		backingFs = fsName
	}

	// check if they are running over btrfs, aufs, zfs or overlay
	switch fsMagic {
	case graphdriver.FsMagicBtrfs:
		logrus.Error("'overlay' is not supported over btrfs.")
		return nil, graphdriver.ErrIncompatibleFS
	case graphdriver.FsMagicAufs:
		logrus.Error("'overlay' is not supported over aufs.")
		return nil, graphdriver.ErrIncompatibleFS
	case graphdriver.FsMagicZfs:
		logrus.Error("'overlay' is not supported over zfs.")
		return nil, graphdriver.ErrIncompatibleFS
	case graphdriver.FsMagicOverlay:
		logrus.Error("'overlay' is not supported over overlay.")
		return nil, graphdriver.ErrIncompatibleFS
	}

	rootUID, rootGID, err := idtools.GetRootUIDGID(uidMaps, gidMaps)
	if err != nil {
		return nil, err
	}
	// Create the driver home dir
	if err := idtools.MkdirAllAs(home, 0700, rootUID, rootGID); err != nil && !os.IsExist(err) {
		return nil, err
	}

	if err := mount.MakePrivate(home); err != nil {
		return nil, err
	}

	d := &Driver{
		home:      home,
		pathCache: make(map[string]string),
		uidMaps:   uidMaps,
		gidMaps:   gidMaps,
		ctr:       graphdriver.NewRefCounter(),
	}

	return NaiveDiffDriverWithApply(d, uidMaps, gidMaps), nil
}

開發者ID:beerbubble，項目名稱:docker，代碼行數:56，代碼來源:overlay.go

示例6: Init

// Init returns the NaiveDiffDriver, a native diff driver for overlay filesystem.
// If overlay filesystem is not supported on the host, graphdriver.ErrNotSupported is returned as error.
// If an overlay filesystem is not supported over an existing filesystem then error graphdriver.ErrIncompatibleFS is returned.
func Init(home string, options []string, uidMaps, gidMaps []idtools.IDMap) (graphdriver.Driver, error) {

	if err := supportsOverlay(); err != nil {
		return nil, graphdriver.ErrNotSupported
	}

	fsMagic, err := graphdriver.GetFSMagic(home)
	if err != nil {
		return nil, err
	}
	if fsName, ok := graphdriver.FsNames[fsMagic]; ok {
		backingFs = fsName
	}

	switch fsMagic {
	case graphdriver.FsMagicAufs, graphdriver.FsMagicBtrfs, graphdriver.FsMagicOverlay, graphdriver.FsMagicZfs, graphdriver.FsMagicEcryptfs:
		logrus.Errorf("'overlay' is not supported over %s", backingFs)
		return nil, graphdriver.ErrIncompatibleFS
	}

	rootUID, rootGID, err := idtools.GetRootUIDGID(uidMaps, gidMaps)
	if err != nil {
		return nil, err
	}
	// Create the driver home dir
	if err := idtools.MkdirAllAs(home, 0700, rootUID, rootGID); err != nil && !os.IsExist(err) {
		return nil, err
	}

	if err := mount.MakePrivate(home); err != nil {
		return nil, err
	}

	supportsDType, err := fsutils.SupportsDType(home)
	if err != nil {
		return nil, err
	}
	if !supportsDType {
		// not a fatal error until v1.16 (#27443)
		logrus.Warn(overlayutils.ErrDTypeNotSupported("overlay", backingFs))
	}

	d := &Driver{
		home:          home,
		uidMaps:       uidMaps,
		gidMaps:       gidMaps,
		ctr:           graphdriver.NewRefCounter(graphdriver.NewFsChecker(graphdriver.FsMagicOverlay)),
		supportsDType: supportsDType,
	}

	return NaiveDiffDriverWithApply(d, uidMaps, gidMaps), nil
}

開發者ID:harche，項目名稱:docker，代碼行數:55，代碼來源:overlay.go

示例7: Init

// Init returns a new AUFS driver.
// An error is returned if AUFS is not supported.
func Init(root string, options []string) (graphdriver.Driver, error) {

	// Try to load the aufs kernel module
	if err := supportsAufs(); err != nil {
		return nil, graphdriver.ErrNotSupported
	}

	fsMagic, err := graphdriver.GetFSMagic(root)
	if err != nil {
		return nil, err
	}
	if fsName, ok := graphdriver.FsNames[fsMagic]; ok {
		backingFs = fsName
	}

	for _, magic := range incompatibleFsMagic {
		if fsMagic == magic {
			return nil, graphdriver.ErrIncompatibleFS
		}
	}

	paths := []string{
		"mnt",
		"diff",
		"layers",
	}

	a := &Driver{
		root:   root,
		active: make(map[string]*data),
	}

	// Create the root aufs driver dir
	if err := os.MkdirAll(root, 0755); err != nil {
		return nil, err
	}

	if err := mountpk.MakePrivate(root); err != nil {
		return nil, err
	}

	// Populate the dir structure
	for _, p := range paths {
		if err := os.MkdirAll(path.Join(root, p), 0755); err != nil {
			return nil, err
		}
	}
	return a, nil
}

開發者ID:harpsichord，項目名稱:docker，代碼行數:51，代碼來源:aufs.go

示例8: Init

func Init(root string, options []string, uidMaps, gidMaps []idtools.IDMap) (graphdriver.Driver, error) {
	if err := supportsVbox(); err != nil {
		return nil, graphdriver.ErrNotSupported
	}

	fsMagic, err := graphdriver.GetFSMagic(root)
	if err != nil {
		return nil, err
	}
	if fsName, ok := graphdriver.FsNames[fsMagic]; ok {
		backingFs = fsName
	}

	d := &Driver{
		rootPath: root,
	}

	paths := []string{
		"images",
		"diff",
		"layers",
	}

	if err := os.MkdirAll(root, 0755); err != nil {
		if os.IsExist(err) {
			return d, nil
		}
		return nil, err
	}

	for _, p := range paths {
		if err := os.MkdirAll(path.Join(root, p), 0755); err != nil {
			return nil, err
		}
	}
	vdi := fmt.Sprintf("%s/images/base.vdi", root)
	if _, err := os.Stat(vdi); err != nil {
		glog.Error(err)
		return nil, err
	}
	d.baseVdi = vdi
	d.pullVm = "hyper-mac-pull-vm"
	d.disks = make(map[string]bool, 1024)
	d.uidMaps = uidMaps
	d.gidMaps = gidMaps

	return d, nil
}

開發者ID:juito，項目名稱:hyper，代碼行數:48，代碼來源:driver.go

示例9: Init

// Init returns a new BTRFS driver.
// An error is returned if BTRFS is not supported.
func Init(home string, options []string, uidMaps, gidMaps []idtools.IDMap) (graphdriver.Driver, error) {

	fsMagic, err := graphdriver.GetFSMagic(home)
	if err != nil {
		return nil, err
	}

	if fsMagic != graphdriver.FsMagicBtrfs {
		return nil, graphdriver.ErrPrerequisites
	}

	rootUID, rootGID, err := idtools.GetRootUIDGID(uidMaps, gidMaps)
	if err != nil {
		return nil, err
	}
	if err := idtools.MkdirAllAs(home, 0700, rootUID, rootGID); err != nil {
		return nil, err
	}

	if err := mount.MakePrivate(home); err != nil {
		return nil, err
	}

	opt, err := parseOptions(options)
	if err != nil {
		return nil, err
	}

	if userDiskQuota {
		if err := subvolEnableQuota(home); err != nil {
			return nil, err
		}
		quotaEnabled = true
	}

	driver := &Driver{
		home:    home,
		uidMaps: uidMaps,
		gidMaps: gidMaps,
		options: opt,
	}

	return graphdriver.NewNaiveDiffDriver(driver, uidMaps, gidMaps), nil
}

開發者ID:harche，項目名稱:docker，代碼行數:46，代碼來源:btrfs.go

示例10: Init

// Init returns the NaiveDiffDriver, a native diff driver for overlay filesystem.
// If overlay filesystem is not supported on the host, graphdriver.ErrNotSupported is returned as error.
// If a overlay filesystem is not supported over a existing filesystem then error graphdriver.ErrIncompatibleFS is returned.
func Init(home string, options []string) (graphdriver.Driver, error) {
	log.Debug("overlayfs driver init ...")

	if err := supportsOverlay(); err != nil {
		return nil, graphdriver.ErrNotSupported
	}

	// Create home dir
	if err := os.MkdirAll(home, 0755); err != nil {
		return nil, err
	}

	fsMagic, err := graphdriver.GetFSMagic(home)
	if err != nil {
		return nil, err
	}
	if fsName, ok := graphdriver.FsNames[fsMagic]; ok {
		backingFs = fsName
	}

	// check if they are running over btrfs or aufs
	switch fsMagic {
	case graphdriver.FsMagicBtrfs:
		log.Error("'overlay' is not supported over btrfs.")
		return nil, graphdriver.ErrIncompatibleFS
	case graphdriver.FsMagicAufs:
		log.Error("'overlay' is not supported over aufs.")
		return nil, graphdriver.ErrIncompatibleFS
	case graphdriver.FsMagicZfs:
		log.Error("'overlay' is not supported over zfs.")
		return nil, graphdriver.ErrIncompatibleFS
	}

	d := &Driver{
		home:   home,
		active: make(map[string]*ActiveMount),
	}

	return NaiveDiffDriverWithApply(d), nil
}

開發者ID:TencentSA，項目名稱:docker-1.3，代碼行數:43，代碼來源:overlay.go

示例11: Init

// Init returns a new AUFS driver.
// An error is returned if AUFS is not supported.
func Init(root string, options []string, uidMaps, gidMaps []idtools.IDMap) (graphdriver.Driver, error) {

	// Try to load the aufs kernel module
	if err := supportsAufs(); err != nil {
		return nil, graphdriver.ErrNotSupported
	}

	fsMagic, err := graphdriver.GetFSMagic(root)
	if err != nil {
		return nil, err
	}
	if fsName, ok := graphdriver.FsNames[fsMagic]; ok {
		backingFs = fsName
	}

	switch fsMagic {
	case graphdriver.FsMagicAufs, graphdriver.FsMagicBtrfs, graphdriver.FsMagicEcryptfs:
		logrus.Errorf("AUFS is not supported over %s", backingFs)
		return nil, graphdriver.ErrIncompatibleFS
	}

	paths := []string{
		"mnt",
		"diff",
		"layers",
	}

	a := &Driver{
		root:      root,
		uidMaps:   uidMaps,
		gidMaps:   gidMaps,
		pathCache: make(map[string]string),
		ctr:       graphdriver.NewRefCounter(graphdriver.NewFsChecker(graphdriver.FsMagicAufs)),
	}

	rootUID, rootGID, err := idtools.GetRootUIDGID(uidMaps, gidMaps)
	if err != nil {
		return nil, err
	}
	// Create the root aufs driver dir and return
	// if it already exists
	// If not populate the dir structure
	if err := idtools.MkdirAllAs(root, 0700, rootUID, rootGID); err != nil {
		if os.IsExist(err) {
			return a, nil
		}
		return nil, err
	}

	if err := mountpk.MakePrivate(root); err != nil {
		return nil, err
	}

	// Populate the dir structure
	for _, p := range paths {
		if err := idtools.MkdirAllAs(path.Join(root, p), 0700, rootUID, rootGID); err != nil {
			return nil, err
		}
	}

	a.naiveDiff = graphdriver.NewNaiveDiffDriver(a, uidMaps, gidMaps)
	return a, nil
}

開發者ID:msabansal，項目名稱:docker，代碼行數:65，代碼來源:aufs.go

注：本文中的github.com/docker/docker/daemon/graphdriver.GetFSMagic函數示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。