ansible/roles/prometheus-blackbox-exporter/tasks/main.yml

---
- name: Install Prometheus Components
  apt:
    name:
      - prometheus-blackbox-exporter
    state: latest
    update_cache: true
  register: apt_result
  retries: 3
  until: apt_result is succeeded

- name: Copy the CA cert
  copy:
    content: "{{ ca_cert }}"
    dest: /etc/prometheus/ca.crt
  notify:
   - Restart blackbox-exporter
   - Reload nginx

- name: Generate certificate
  include_role:
    name: generate-cert
  vars:
    directory: /etc/prometheus/
    cname: "blackbox-{{ lan_address }}"
    owner: prometheus
    group: prometheus
    key_mode: u=rw,g=,o=
    subject_alt_name: "IP:{{ lan_address }}"
# Need an equivalent to notify here

- name: Ensured the certificate is monitored
  import_tasks: register-cert-to-monitoring.yml
  vars:
    target: "{{ lan_address }}:9115|blackbox-{{ lan_address }}|{{ ansible_facts['nodename'] }}"

- name: Setup the blackbox config
  template:
    src: blackbox.yml
    dest: /etc/prometheus/blackbox.yml
    owner: prometheus
    group: prometheus
    mode: '0640'
  notify: Restart blackbox-exporter
  no_log: true

#- name: Copy the web-config folder
#  template:
#    src: web-config.yaml
#    dest: /etc/prometheus/web-config-blackbox.yaml
#    group: prometheus
#    owner: prometheus
#    mode: u=rw,g=r,o=r
#  notify: Restart blackbox-exporter

- name: Setup the arguments for prometheus
  template:
    src: prometheus-blackbox-exporter
    dest: /etc/default/prometheus-blackbox-exporter
    owner: root
    group: root
    mode: '0644'
  notify: Restart blackbox-exporter
  vars:
    args:
      - name: web.listen-address
        value: "127.0.0.1:9115"
#        value: "{{ lan_address }}:9115"
      - name: config.file
        value: /etc/prometheus/blackbox.yml
#      - name: web.config.file 
#        value: /etc/prometheus/web-config.yaml

## Here we go, using nginx to add mSSL to prometheus... because who need to authentication on the server with ALL the jucy data?
# Think prometheus, think!
- name: Copy the nginx config
  template:
    src: atrocious_nginx_stub
    dest: "/etc/nginx/sites-available/internal-blackbox"
  notify: Reload nginx

- name: Activate the config
  file:
    src: "/etc/nginx/sites-available/internal-blackbox"
    dest: "/etc/nginx/sites-enabled/internal-blackbox"
    state: link
    force: yes

- name: Add alert rules for node on the prometheus server
  copy:
    src: alerts-blackbox.yml
    dest: /etc/prometheus/alertsblackbox.yml
    owner: prometheus
    group: prometheus
    mode: u=rw,g=r,o=r
  notify: Restart prometheus