Label validator function has been left behind, although it's not
checking for anything right now - might be useful in future.
Change-Id: I74c744dc957d73aef7556aff00837611dadbada7
Ensure the --live-restore is not in the Docker daemon OPTIONS.
Some images has this option by default which will cause the node
not being able to perform it swarm init process.
Change-Id: I287a5274143903fad5d4476e9d1640b26bdb46d4
Story: 2004095
Task: 27497
Remove custom docker unit file and pass the necessary options
through /etc/sysconfig/docker file.
Change-Id: I6bf91843b9120b700d13aad54cef38342ae1f8bd
Closes-Bug: #1646123
Michal Nasiadka