Beispiel #1
0
// Clone clones the container using given arguments with specified backend.
func (c *Container) Clone(name string, options CloneOptions) error {
	// FIXME: bdevdata, newsize and hookargs
	//
	// bdevdata:
	// zfs requires zfsroot
	// lvm requires lvname/vgname/thinpool as well as fstype and fssize
	// btrfs requires nothing
	// dir requires nothing
	//
	// newsize: for blockdev-backed backingstores
	//
	// hookargs: additional arguments to pass to the clone hook script
	if err := c.makeSure(isDefined | isNotRunning); err != nil {
		return err
	}

	c.mu.Lock()
	defer c.mu.Unlock()

	// use Directory backend if not set
	if options.Backend == 0 {
		options.Backend = Directory
	}

	var flags int
	if options.KeepName {
		flags |= C.LXC_CLONE_KEEPNAME
	}
	if options.KeepMAC {
		flags |= C.LXC_CLONE_KEEPMACADDR
	}
	if options.Snapshot {
		flags |= C.LXC_CLONE_SNAPSHOT
	}

	cname := C.CString(name)
	defer C.free(unsafe.Pointer(cname))

	cbackend := C.CString(options.Backend.String())
	defer C.free(unsafe.Pointer(cbackend))

	if options.ConfigPath != "" {
		clxcpath := C.CString(options.ConfigPath)
		defer C.free(unsafe.Pointer(clxcpath))

		if !bool(C.go_lxc_clone(c.container, cname, clxcpath, C.int(flags), cbackend)) {
			return ErrCloneFailed
		}
	} else {
		if !bool(C.go_lxc_clone(c.container, cname, nil, C.int(flags), cbackend)) {
			return ErrCloneFailed
		}
	}
	return nil
}
Beispiel #2
0
// CloneUsing clones the container using given arguments with specified backend.
//
// Additional flags to change the cloning behaviour:
// CloneKeepName, CloneKeepMACAddr, CloneSnapshot and CloneMaybeSnapshot
func (c *Container) CloneUsing(name string, backend BackendStore, flags CloneFlags) error {
	// FIXME: support lxcpath, bdevtype, bdevdata, newsize and hookargs
	//
	// bdevtypes:
	// "btrfs", "zfs", "lvm", "dir" "overlayfs"
	//
	// bdevdata:
	// zfs requires zfsroot
	// lvm requires lvname/vgname/thinpool as well as fstype and fssize
	// btrfs requires nothing
	// dir requires nothing
	//
	// newsize: for blockdev-backed backingstores
	//
	// hookargs: additional arguments to pass to the clone hook script
	if err := c.makeSure(isDefined | isNotRunning); err != nil {
		return err
	}

	c.mu.Lock()
	defer c.mu.Unlock()

	cname := C.CString(name)
	defer C.free(unsafe.Pointer(cname))

	cbackend := C.CString(backend.String())
	defer C.free(unsafe.Pointer(cbackend))

	if !bool(C.go_lxc_clone(c.container, cname, C.int(flags), cbackend)) {
		return ErrCloneFailed
	}
	return nil
}