Docker configuration for UnRaid OS

Also can't seem to get a new container running with UnRAID.

Using the following environment variables:

      - IGNITION_UID=99
      - IGNITION_GID=100 

And getting the following error while running the compose file:

ignition-gateway | /usr/local/bin/docker-entrypoint.sh: line 629: /usr/local/bin/ignition/data/init.properties: Permission denied