pleroma-ansible-playbook/tasks/postgres.yml

---
- name: Postgres -- Ensure that PostgreSQL is installed.
  apk:
    name: postgresql, postgresql-contrib, py-psycopg2
    state: present

- name: Postgres -- Ensure that the database is initialised.
  command:
    argv:
    - /etc/init.d/postgresql
    - setup
    creates: /var/lib/postgresql/11/data/postgresql.conf

- name: Postgres -- Ensuring that the additional directories exist.
  file:
    name: "{{ item }}"
    state: directory
    mode: '0700'
    owner: postgres
    group: postgres
  loop:
  - "{{ pleroma_postgres_log_dir }}"
  - "{{ pleroma_postgres_confd }}"

- name: Postgres -- Ensuring that PostgreSQL is configured.
  template:
    src: "{{ item.src }}"
    dest:  "{{ item.dest }}"
    owner: postgres
    group: postgres
    mode: '0400'
  loop:
  - { src: etc_postgresql_pg_hba.conf.j2, dest: "{{ pleroma_postgres_base_conf }}/pg_hba.conf" }
  - { src: etc_postgresql_confd_postgresql_override.conf, dest: "{{ pleroma_postgres_confd }}/postgresql_override.conf" }

- name: Postgres -- Ensuring that the symlink to the override config is present.
  file:
    group: postgres
    mode: '0700'
    owner: postgres
    path: "{{ pleroma_postgres_confd_symlink }}"
    src: "{{ pleroma_postgres_confd }}"
    state: link

- name: Postgres -- Ensuring that the override config is included in the main config.
  lineinfile:
    group: postgres
    line: "include = '{{ pleroma_postgres_confd_symlink }}/postgresql_override.conf'"
    mode: '0400'
    owner: postgres
    path: "{{ pleroma_postgres_base_conf }}/postgresql.conf"
    regexp: ^.*include\s=\s'.*'.*$
    state: present

- name: Postgres -- Ensuring that PostgreSQL is enabled and started.
  service:
    name: postgresql
    enabled: yes
    state: restarted

- name: Postgres -- Ensuring that Postgres is available before continuing.
  wait_for:
    connect_timeout: 10
    delay: 5
    host: localhost
    port: 5432
    state: started

- name: Postgres -- Ensuring that the database user {{ pleroma.config.db.user }} exists.
  become_user: postgres
  postgresql_user:
    db: postgres
    encrypted: yes
    login_unix_socket: "{{ pleroma_postgres_unix_socket_dir }}"
    name: "{{ pleroma.config.db.user }}"
    password: "{{ pleroma.config.db.password }}"
    state: present
  vars:
    ansible_ssh_pipelining: true

- name: Postgres -- Ensuring that the database {{ pleroma.config.db.name }} exists.
  become_user: postgres
  postgresql_db:
    conn_limit: "{{ pleroma.config.db.connLimit }}"
    encoding: UTF-8
    login_unix_socket: "{{ pleroma_postgres_unix_socket_dir }}"
    name: "{{ pleroma.config.db.name }}"
    owner: "{{ pleroma.config.db.user }}"
    state: present
  vars:
    ansible_ssh_pipelining: true

- name: Postgres -- Ensuring the PostgreSQL extensions is added to the database.
  become_user: postgres
  postgresql_ext:
    name: "{{ item }}"
    db: "{{ pleroma.config.db.name }}"
    login_unix_socket: "{{ pleroma_postgres_unix_socket_dir }}"
    state: present
  loop:
  - citext
  - pg_trgm
  - uuid-ossp
  vars:
    ansible_ssh_pipelining: true