lab-ansible/roles/postgresql/tasks/main.yml

# vim: ft=yaml.ansible
# code: language=ansible
---
- name: Add PostgreSQL repository
  ansible.builtin.dnf:
    name: https://download.postgresql.org/pub/repos/yum/reporpms/EL-9-x86_64/pgdg-redhat-repo-latest.noarch.rpm
    state: present

- name: Disable built-in PostgreSQL module
  ansible.builtin.command:
    cmd: dnf -qy module disable postgresql
    creates: /etc/dnf/modules.d/postgresql.module

- name: Install PostgreSQL {{ postgresql_version }}
  ansible.builtin.dnf:
    name:
      - postgresql{{ postgresql_version }}-server
      - python{{ ansible_python.version.major }}-psycopg2
    update_cache: true
    state: present

- name: Create PostgreSQL service override directory
  ansible.builtin.file:
    path: /etc/systemd/system/{{ postgresql_service }}.service.d
    owner: root
    mode: u=rwx,g=rx,o=rx
    state: directory

- name: Copy PostgreSQL service override file
  ansible.builtin.template:
    src: "{{ postgresql_service }}.service.j2"
    dest: /etc/systemd/system/{{ postgresql_service }}.service.d/override.conf
    owner: root
    mode: u=rw,g=r,o=r
  notify: Reload systemd

- name: Flush handlers
  ansible.builtin.meta: flush_handlers

- name: Create PGDATA directory
  ansible.builtin.file:
    path: "{{ postgresql_pgdata }}"
    owner: postgres
    mode: u=rwx,go=
    state: directory

- name: Create WAL archive directory
  ansible.builtin.file:
    path: "{{ postgresql_wal_archive }}"
    owner: postgres
    mode: u=rwx,go=
    state: directory

- name: Initialize database
  ansible.builtin.command:
    cmd: /usr/pgsql-{{ postgresql_version }}/bin/postgresql-{{ postgresql_version }}-setup initdb
    creates: "{{ postgresql_pgdata }}/base"

- name: Copy postgresql.conf
  ansible.builtin.template:
    src: postgresql.conf.j2
    dest: "{{ postgresql_pgdata }}/postgresql.conf"
    owner: postgres
    mode: u=rw,go=
  notify: Reload PostgreSQL

- name: Copy pg_hba.conf
  ansible.builtin.template:
    src: pg_hba.conf.j2
    dest: "{{ postgresql_pgdata }}/pg_hba.conf"
    owner: postgres
    mode: u=rw,go=
  notify: Reload PostgreSQL

- name: Flush handlers
  ansible.builtin.meta: flush_handlers

- name: Ensure PostgreSQL is enabled and running
  ansible.builtin.service:
    name: "{{ postgresql_service }}"
    enabled: true
    state: started

- name: Set up databases
  ansible.builtin.include_tasks:
    file: database.yml
    apply:
      become: true
      become_user: postgres
  vars:
    db_name: "{{ item.key }}"
    db_vars: "{{ item.value }}"
  loop: "{{ databases | dict2items }}"
  no_log: true