---
- name: Install PostgreSQL server
  hosts: postgresql

  vars:
    config_path: /etc/postgresql

  tasks:

  - name: Installing the application
    apk:
      state: present
      update_cache: yes
      name:
        - postgresql

  - name: Copying main configuration file
    copy:
      src: postgresql.conf
      owner: postgres
      group: postgres
      dest: "{{ config_path }}"
      mode: '0600'

  - name: Copying client authentication configuration file
    copy:
      src: pg_hba.conf
      owner: postgres
      group: postgres
      dest: "{{ config_path }}"
      mode: '0600'

  - name: Ensuring PostgreSQL has been enabled and started
    service:
      name: postgresql
      state: started
      enabled: yes