patroni/tasks/config.yaml

---
- name: Merge user options for PostgreSQL part of Patroni config
  set_fact:
    patroni_postgresql_parameters_combined: "{{ patroni_postgresql_default_parameters | combine(patroni_postgresql_parameters|default({}), recursive=true) }}"

- name: Merge backup options for PostgreSQL part of Patroni config
  set_fact:
    patroni_postgresql_parameters_combined: "{{ patroni_postgresql_parameters_combined | combine(patroni_postgresql_backup_parameters['postgresql']['parameters']|default({}), recursive=true) }}"

- name: Template Patroni default config
  set_fact:
    patroni_default_config: "{{ lookup('template', 'patroni.yaml.j2') | from_yaml }}"

- name: Print Patroni default config
  debug:
    msg: "{{ patroni_default_config }}"
    verbosity: 2

- name: Merge user options with default Patroni config
  set_fact:
    patroni_config_combined: "{{ patroni_default_config | combine(patroni_config|default({}), recursive=true) }}"

- name: Create folder for Patroni config
  file:
    name: "{{ item }}"
    state: directory
    owner: "postgres"
    group: "postgres"
  loop:
    - /etc/patroni
    - /var/lib/pgsql_stats_tmp

- name: Check that the bootstrap {{ patroni_config_name }} exists
  stat:
    path: "/etc/patroni/{{ patroni_config_name }}"
  register: patroni_config_file_exists_result

- name: Propagate Patroni config
  copy:
    content: "{{ patroni_config_combined | to_nice_yaml }}"
    dest: "/etc/patroni/{{ patroni_config_name }}"
    owner: "postgres"
    group: "postgres"
    mode: 0644
  register: patroni_config_file
  when: not patroni_config_file_exists_result.stat.exists
  notify: Restart Patroni