Backup the container and install it on another server

[VERIFIorentino_2018 (VeFi_2018)]

@stgraber

Say you have a container called “blah”. For backup as an image tarball, you’d do:

• lxc snapshot blah backup
• lxc publish blah/backup --alias blah-backup
• lxc image export blah-backup .
• lxc image delete blah-backup

Which will get you a tarball in your current directory.

To restore and create a container from it, you can then do:

• lxc image import TARBALL-NAME --alias blah-backup
• lxc launch blah-backup some-container-name
• lxc image delete blah-backup

Works perfectly.
I would add to this thread and suggest everyone to use by default no compression, especially if using ZFS compression. The images are fast.
lxc publish xenial/snap0 --compression none --alias export-xenial-snap0