GID for the mysql group is not fixed

[inercia]

While using MariaDB (in particular mariadb-10.0.30-28.1.x86_64) in CaaSP we have found a problem with the mysql group created at the spec file.

We are running MariaDB in a container that mounts persistent storage from the host. We need to use fixed UID and GID for the mysql user in the container, so that files created by mysql:mysql in the container appear with the same UID/GID in the host.

While the UID is hardcoded to be 60 it doesn't happen the same for the GID. We would like to know if it could be possible to create the mysql group with, for example, groupadd -r mysql -g 60 (or any other GID, as long as we could have a fixed GID).

[scarabeusiv]

Well feel free to patch it with the -g ; but honestly no idea what group number it should use, probably the same as user?

[inercia]

I have submitted a PR, #70, where the GID is fixed to be 600... I think it is a reasonable safe group id, but we can change it if you don't think so...