---
- name: Configure Prometheus for Blackbox monitoring
  hosts: 192.168.0.105
  become: yes

  vars:
    blackbox_targets: "{{ hostvars['192.168.0.112']['blackbox_targets'] }}"

  tasks:
    - name: Add blackbox exporter to Prometheus
      blockinfile:
        path: /etc/prometheus/prometheus.yml
        insertafter: '  # cAdvisor container metrics'
        block: |
          # Blackbox Exporter probes
          - job_name: 'blackbox'
            metrics_path: /probe
            params:
              module: [http_2xx]
            static_configs:
              - targets:
                {% for target in blackbox_targets %}
                - {{ target.url }}
                {% endfor %}
            relabel_configs:
              - source_labels: [__address__]
                target_label: __param_target
              - source_labels: [__param_target]
                target_label: instance
              - target_label: __address__
                replacement: 192.168.0.112:8083  # blackbox-exporter
        marker: "# {mark} ANSIBLE MANAGED BLOCK - blackbox"

    - name: Check Prometheus configuration
      command: promtool check config /etc/prometheus/prometheus.yml
      register: promtool_check
      failed_when: promtool_check.rc != 0

    - name: Reload Prometheus
      systemd:
        name: prometheus
        state: reloaded
      when: promtool_check.rc == 0