+# during some time this fragment had been commented out
+# but we're seeing cases where this code might actually be useful, so..
+# this hopefully should be fixed now
+# # in fedora20 we have some difficulty in properly cleaning up /vservers/<slicename>
+# # also note that running e.g. btrfs subvolume create /vservers/.lvref/image /vservers/foo
+# # behaves differently, whether /vservers/foo exists or not:
+# # if /vservers/foo does not exist, it creates /vservers/foo
+# # but if it does exist, then it creates /vservers/foo/image !!
+# # so we need to check the expected container rootfs does not exist yet
+# # this hopefully could be removed in a future release
+ if os.path.exists (containerDir):
+ logger.log("sliver_lxc: {}: WARNING cleaning up pre-existing {}".format(name, containerDir))
+ command = ['btrfs', 'subvolume', 'delete', containerDir]
+ logger.log_call(command, BTRFS_TIMEOUT)
+ # re-check
+ if os.path.exists (containerDir):
+ logger.log('sliver_lxc: {}: ERROR Could not create sliver - could not clean up empty {}'
+ .format(name, containerDir))
+ return
+
+ # Snapshot the reference image fs
+ # this assumes the reference image is in its own subvolume