Avoid exposing volumes for compatibility with volumes drivers (convoy-nfs)

Whatever docker volume driver you select when you start a container, the declared volumes from Dockerfile of the image are automatically mounted with this driver. You cannot select or unselect the ones you want.

In a configuration where someone would like two gitlab instances in multi master, the first volume (GITLAB_DATA_DIR) is wanted to be plugged with the volume driver (so you can share the volume between your containers)

But the log volume is not meant to be shared between the two containers.

As the volumes can be defined at runtime, with docker-compose.yml or in command line, would it be possible to remove the GITLAB_LOG_DIR from this line ?
https://github.com/sameersbn/docker-gitlab/blob/master/Dockerfile#L52

Thanks for your great job @sameersbn

Start with Dockerfile at line 52, where GITLAB_LOG_DIR is declared. Check how the image currently declares its volumes and how runtime configuration through docker-compose.yml or the command line is expected to work. Done means the log volume is no longer forced through the selected volume driver while runtime volume definitions remain usable.