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lxc-clone(1)

NAME

   lxc-clone - clone a new container from an existing one.

SYNOPSIS

   lxc-clone [-s ] [-K ] [-M ] [-H ] [-B backingstore] [-L fssize] [-p
             lxcpath] [-P newlxcpath] [-R ] {-o orig} {-n new} [-- hook
             arguments]
   lxc-clone [-s ] [-K ] [-M ] [-H ] [-B backingstore] [-L fssize] [-p
             lxcpath] [-P newlxcpath] [-R ] {orig} {new} [-- hook
             arguments]

DESCRIPTION

   lxc-clone  Creates a new container as a clone of an existing container.
   Two types of clones are supported: copy  and  snapshot.  A  copy  clone
   copies  the  root  filessytem from the original container to the new. A
   snapshot filesystem uses the backing store's snapshot functionality  to
   create  a  very small copy-on-write snapshot of the original container.
   Snapshot clones require the new  container  backing  store  to  support
   snapshotting.  Currently this includes only aufs, btrfs, lvm, overlayfs
   and zfs. LVM devices do not support snapshots of snapshots.

   The backing store of the new container will be the  same  type  as  the
   original  container,  with one exception, overlay containers.  aufs and
   overlayfs snapshots can be created of directory backed containers. This
   can be requested by using (for overlayfs) the -B overlayfs arguments.

   The  names  of  the  original  and  new container can be given (in that
   order) after all options, or can  be  specified  with  the  -o  and  -n
   options, respectively.

OPTIONS

   -s, --snapshot
          The  new  container's rootfs will be a snapshot of the original.
          This option can be specified when  the  backing  store  is  LVM,
          btrfs  or  zfs,  and must be specified when you want to snapshot
          using aufs or overlayfs.

   -K, --keepname
          Do not change  the  hostname  of  the  container  (in  the  root
          filesystem).

   -M, --keepmac
          Use  the same MAC address as the original container, rather than
          generating a new random one.

   -H, --copyhooks
          Copy all mount hooks into the  new  container's  directory,  and
          update any lxcpaths and container names as needed.

   -L, --fssize fssize
          In  the  case of a block device backed container, a size for the
          new block device. By default, the new device will  be  made  the
          same size as the original.

   -p, --lxcpath lxcpath
          The  lxcpath  of  the original container. By default, the system
          wide configured lxcpath will be used.

   -P, --newpath newlxcpath
          The lxcpath for the new container. By default the  same  lxcpath
          as  the  original  will be used. Note that with btrfs snapshots,
          changing lxcpaths may not be possible,  as  subvolume  snapshots
          must be in the same btrfs filesystem.

   -B, --backingstore backingstore
          Select  a  different  backing  store  for  the new container. By
          default the same as the original container's is used. Note  that
          currently  changing  the backingstore is only supported for aufs
          and overlayfs snapshots of directory  backed  containers.  Valid
          backing  stores  include dir (directory), aufs, btrfs, lvm, zfs,
          loop and overlayfs.

   -R, --rename
          Rename an existing container.  orig is renamed new.

   -o, --orig orig
          The name of the original container to clone.

   -n, --new new
          The name of the new container to create.

CLONE HOOK

   If the container being cloned has one or more lxc.hook.clone specified,
   then  the  specified  hooks  will  be called for the new container. The
   first 3 arguments passed to the clone hook will be the container  name,
   a  section ('lxc'), and the hook type ('clone'). Extra arguments passed
   lxc-clone will be passed to the hook program starting  at  argument  4.
   The  LXC_ROOTFS_MOUNT  environment  variable gives the path under which
   the container's root filesystem  is  mounted.  The  configuration  file
   pathname  is  stored  in  LXC_CONFIG_FILE,  the  new  container name in
   LXC_NAME, the old container name  in  LXC_SRC_NAME,  and  the  path  or
   device on which the rootfs is located is in LXC_ROOTFS_PATH.

NOTES

   lxc-clone is deprecated in favor of lxc-copy.

SEE ALSO

   lxc(7),  lxc-create(1), lxc-copy(1), lxc-destroy(1), lxc-start(1), lxc-
   stop(1), lxc-execute(1), lxc-console(1),  lxc-monitor(1),  lxc-wait(1),
   lxc-cgroup(1),  lxc-ls(1), lxc-info(1), lxc-freeze(1), lxc-unfreeze(1),
   lxc-attach(1), lxc.conf(5)

AUTHOR

   Serge Hallyn <[email protected]>

                              2017-01-04                      lxc-clone(1)



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