---
- name: Gather Docker group entries
  ansible.builtin.getent:
    database: group
    key: "{{ monitoring_zabbix_docker_group }}"
  failed_when: false

- name: Check whether Docker socket exists
  ansible.builtin.stat:
    path: "{{ monitoring_zabbix_docker_socket_path }}"
  register: monitoring_docker_socket

- name: Ensure Zabbix agent can access Docker socket
  ansible.builtin.user:
    name: "{{ monitoring_zabbix_agent_user }}"
    groups: "{{ monitoring_zabbix_docker_group }}"
    append: yes
  when:
    - monitoring_docker_socket.stat.exists
    - monitoring_zabbix_docker_group in (ansible_facts.getent_group | default({}))
  notify: Restart Zabbix Agent

- name: Ensure Docker plugin configuration directory exists
  ansible.builtin.file:
    path: "{{ monitoring_zabbix_docker_plugin_config_file | dirname }}"
    state: directory
    owner: root
    group: root
    mode: '0755'
  when: monitoring_docker_socket.stat.exists

- name: Configure Docker plugin endpoint
  ansible.builtin.template:
    src: docker.conf.j2
    dest: "{{ monitoring_zabbix_docker_plugin_config_file }}"
    owner: root
    group: root
    mode: '0644'
  when: monitoring_docker_socket.stat.exists
  notify: Restart Zabbix Agent

- name: Remove Docker plugin configuration when Docker socket is absent
  ansible.builtin.file:
    path: "{{ monitoring_zabbix_docker_plugin_config_file }}"
    state: absent
  when: not monitoring_docker_socket.stat.exists
  notify: Restart Zabbix Agent