FYI: IPv6 needs default Docker config file.

[irctrakz]

With ipv6 enabled the older OS5 LTS kernel attempting to run a later (>27.0.1) Docker version fails with network initialization.

The "fix" here is to set /etc/docker/daemon.json to:

{
  "ip6tables": false
}

Any guidance on setting this at install time so it persists across reboot? I'd be happy to submit a PR.