Adding user to docker_host group based on GID number failed when GID is in use

Problem description

Docker group may have diffrent GID on varous of server. For example I saw 994, 999 or 1002. When we mount docker.sock to ansible-playbook container it tries to create docker_host group with GID of group owner of docker.sock. Unfortunetly it fails when this GID is used by another group. So adding user also fails.

Proposal

We can opt out of adding the group by name and add the user directly to the group by the GID number.