xoxys.postgres/tasks/install.yml

---
- block:
    - name: Install PostgreSQL
      package:
        name: "{{ item }}"
        state: present
      loop: "{{ __postgres_packages }}"

    - name: Ensure data directory exists
      file:
        path: "{{ __postgres_data_dir }}"
        owner: "{{ postgres_user }}"
        group: "{{ postgres_group }}"
        state: directory
        mode: 0700

    - name: Setup custom systemd service
      template:
        src: etc/systemd/system/postgresql.service.j2
        dest: "/etc/systemd/system/{{ __postgres_daemon }}.service"
        mode: 0644
      notify: __postgres_restart
      register: __postgres_systemd

    - name: Force systemd to re-read configs
      systemd:
        daemon_reload: True
      when: __postgres_systemd.changed

    - name: Check if database is initialized
      stat:
        path: "{{ __postgres_data_dir }}/PG_VERSION"
      register: __pgdata_dir_version

    - name: Ensure database is initialized
      command: "/usr/pgsql-{{ __postgres_version }}/bin/postgresql-{{ __postgres_version }}-setup initdb"
      when: not __pgdata_dir_version.stat.exists
  
    - name: Override default pg_hba.conf with a clean one
      template:
        src: templates/postgresql/data/pg_hba.conf.j2
        dest: "{{ __postgres_config_path }}/pg_hba.conf"
        mode: 0644
      when:
        - not __pgdata_dir_version.stat.exists
        - postgres_clean_hba_file | bool
  become: True
  become_user: root