Changes

Jump to navigation Jump to search
355 bytes added ,  18:01, 16 July 2015
no edit summary
Line 151: Line 151:  
== Restore Prework for External C/R ==
 
== Restore Prework for External C/R ==
   −
As mentioned earlier, by default Docker uses AUFS to set up the
+
Docker supports many storage drivers (AKA graph drivers) including
container's filesystem. When Docker notices that the process has
+
AUFS, Btrfs, ZFS, DeviceMapper, OverlayFS, and VFS.  The user can
exited (due to CRIU dump), it dismantles the filesystem.  We need
+
specify his/her desired storage driver via the <code>DOCKER_DRIVER</code>
to set up the filesystem again before attempting to restore.
+
environment variable or the <code>-s (--storage-driver)</code> command
 +
line option.
 +
 
 +
Currently C/R can only be done on containers using either AUFS, OverlayFS, or VFS.
 +
In the following example, we assume AUFS.
 +
 
 +
When Docker notices that the container has exited (due to CRIU dump),
 +
it dismantles the container's filesystem.  We need to set up the container's
 +
filesystem again before attempting to restore.
    
== An External C/R Example ==
 
== An External C/R Example ==
26

edits

Navigation menu