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Line 151: − As mentioned earlier, by default Docker uses AUFS to set up the+ − container's filesystem. When Docker notices that the process has+ − + − + + + + + + + + +
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== Restore Prework for External C/R ==
== Restore Prework for External C/R ==
Docker supports many storage drivers (AKA graph drivers) including
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 ==