Would support for namimg / multiple instances be accepted?

[jantari]

We have a usecase for multiple clusters/instances of PostgreSQL on one server.

Basically an app needs dbcreator permissions, so we need to isolate it from our "main" cluster so it cannot overwrite other production databases with that permission.

This should be fairly easy by just variable-izing the "main" default cluster name. A PR has existed for this before but was closed by the author: https://github.com/geerlingguy/ansible-role-postgresql/pull/70

I would create a new PR to implement this but want to know first whether it would be accepted.

Currently this role is hardcoded to always manage the PostgreSQL instance called "main". That's limiting, the idea is that the role could be run in a loop to configure multiple instances:

- hosts: database
  gather_facts: yes
  roles:
    - role: geerlingguy.postgresql
      become: yes
      vars:
        # postgresql_cluster unset, defaults to "main"
        postgresql_databases:
          - name: exampledb 
    - role: geerlingguy.postgresql
      become: yes
      vars:
        postgresql_cluster: whatever
        postgresql_databases:
          - name: exampledb2

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