- name: Database - Install RHEL packages
  ansible.builtin.dnf:
    name: "{{ item }}"
    state: present
  loop: "{{ db.packages }}"
  tags:
    - install_db

- name: Database - Check if postgresql is configured
  stat:
    path: /var/lib/pgsql/data/PG_VERSION
  register: postgresqldata

- name: Database - Init DB
  ansible.builtin.shell:
    cmd: postgresql-setup --initdb
  when:  postgresqldata.stat.exists == false
  tags:
    - install_db

- name: Database - Enable and start service postgresl
  ansible.builtin.service:
    name: postgresql
    state: started
    enabled: yes
  tags:
    - install_db

- name: Database - Generate create db script
  ansible.builtin.template:
    src: create_db.j2
    dest: /tmp/create_db.sql
    owner: postgres
  tags:
    - install_db

- name: Database - Run create db script
  ansible.builtin.shell: su - postgres -c 'psql -f /tmp/create_db.sql'
  tags:
    - install_db

- name: Database - Add zabbix user to pg_hba
  ansible.builtin.lineinfile:
    path: /var/lib/pgsql/data/pg_hba.conf
    insertafter: '# "local" is for Unix domain socket connections only'
    line: "local   {{ db_name }}          {{ db_user }}           trust"
    firstmatch: yes
    state: present

- name: Database -Find Group
  set_fact:
    my_group:  "{{ group_names | first }}"

- name: Database - Créer les entrées pg_hba pour tous les hosts avec rôle 'srv'
  lineinfile:
    path: /var/lib/pgsql/data/pg_hba.conf
    line: "host    {{ db_name }}          {{ db_user }}    {{ hostvars[item]['ansible_default_ipv4']['address'] }}/32       md5"
    state: present
  loop: "{{ groups[my_group] }}"
  when: 
    - hostvars[item].role is defined
    - hostvars[item].role == 'srv' or hostvars[item].role == 'front'
    - hostvars[item]['ansible_default_ipv4'] is defined

- name: Database - Configure postgres Listen address
  ansible.builtin.lineinfile:
    path: /var/lib/pgsql/data/postgresql.conf
    regexp: '^#listen_addresses = .*'
    line: "listen_addresses = '*'"
  tags:
   - install_db


- name: Database - Restart postgresql
  service:
    name: postgresql
    state: restarted
    enabled: true
  tags:
   - install_db

- name: Populate zabbix database
  ansible.builtin.shell: 'zcat /usr/share/zabbix/sql-scripts/postgresql/server.sql.gz | psql -Uzabbix zabbix'
  tags:
   - install_db

- name: Proxy - Enable and start service zabbix component
  ansible.builtin.service:
    name: "{{ item }}"
    state: restarted
    enabled: true
  loop: 
    - zabbix-agent2