---
# file: roles/postgres/tasks/zabbix.yml

- name: "[zabbix] scripts"
  copy:
    src: "{{ item }}"
    dest: "/etc/zabbix/scripts/{{ item }}"
    mode: 0755
  loop:
    - pg_stat_database.sh
    - pg_connection_reaper.sh
    - pg_replication_slots_discovery.sh
  tags:
    - postgres
    - zabbix

- name: "[zabbix] /etc/zabbix/zabbix_agentd.conf.d/postgresql.conf (static)"
  copy:
    src: zabbix_postgresql.conf
    dest: /etc/zabbix/zabbix_agentd.conf.d/postgresql.conf
    mode: 0644
  notify: restart zabbix_agent
  tags:
    - postgres
    - zabbix

- name: "[zabbix] pg < 10 specific"
  set_fact:
    postgres_zabbix_stat_replication_bytelag: "{{ postgres_zabbix_legacy_stat_replication_bytelag }}"
  when: pg_version is version('10', '<')
  tags:
    - postgres
    - zabbix

- name: "[zabbix] pg >= 10 specific"
  set_fact:
    postgres_zabbix_stat_replication_bytelag: "{{ postgres_zabbix_modern_stat_replication_bytelag }}"
  when: pg_version is version('10', '>=')
  tags:
    - postgres
    - zabbix

- name: "[zabbix] /etc/zabbix/zabbix_agentd.conf.d/postgresql_template.conf (template)"
  template:
    src: "zabbix_postgresql_template.conf"
    dest: "/etc/zabbix/zabbix_agentd.conf.d/postgresql_template.conf"
    mode: 0644
  notify: restart zabbix_agent
  tags:
    - postgres
    - zabbix

- name: "[zabbix] pg >= 13: crontab to reset the postgres SLRU stats once a day"
  cron:
    name: "postgres: reset SLRU stats"
    hour: "00"
    minute: "00"
    job: 'psql -Atc "SELECT pg_stat_reset_slru(NULL)"'
    user: "postgres"
  when: pg_version is version('13', '>=')
  tags:
    - postgres
    - zabbix