Mastering GitLab 12

Contents of the gitlab.rb.postgres.j2 template

The first declaration in the gitlab.rb.postgres.j2 template is which role the instance will play in our infrastructure:

 # Disable all components except PostgreSQL roles ['postgres_role']

The next setting is to determine whether a database should be initialized as a master database, which should only be performed on the master node:

# Only the master database should become master {% if hostvars[inventory_hostname].role == "slave" %} repmgr['master_on_initialization'] = false {% endif %}

The general database properties are the same for the master and the slaves. The database should listen on all interfaces and be prepared to sync their data:

 # Database properties postgresql['listen_address'] ...