---
- name: Update apt cache
  apt:
    update_cache: yes

- name: Install Prometheus from Ubuntu repository
  apt:
    name:
      - prometheus
      - prometheus-node-exporter
    state: present

- name: Check which Prometheus services are available
  shell: systemctl list-unit-files | grep prometheus
  register: prometheus_services
  ignore_errors: true

- name: Debug available Prometheus services
  debug:
    var: prometheus_services.stdout_lines

- name: Generate Prometheus configuration
  template:
    src: prometheus.yml.j2
    dest: /etc/prometheus/prometheus.yml
    owner: prometheus
    group: prometheus
    mode: '0644'
    backup: yes
  notify: restart prometheus

- name: Start and enable Prometheus service (try different service names)
  service:
    name: "{{ item }}"
    state: started
    enabled: yes
  loop:
    - prometheus
    - prometheus-server
  ignore_errors: true
  register: service_start_result

- name: Debug service start results
  debug:
    var: service_start_result

- name: Start and enable Node Exporter
  service:
    name: prometheus-node-exporter
    state: started
    enabled: yes
  ignore_errors: true

- name: Check Prometheus status
  shell: systemctl status prometheus* --no-pager
  register: prometheus_status
  ignore_errors: true

- name: Show Prometheus status
  debug:
    var: prometheus_status.stdout_lines

- name: Check if Prometheus is listening on port 9090
  wait_for:
    port: 9090
    host: 127.0.0.1
    timeout: 30
  ignore_errors: true
  register: port_check

- name: Debug port check
  debug:
    var: port_check