extras.yml

---
- name: Install python
  hosts: all
  gather_facts: false
  tasks:
  - name: Install python
    raw: "apt update && apt install -y python"

- name: Setup HTTP server
  hosts: web
  roles:
  - caddy_ansible.caddy_ansible
  pre_tasks:
  - name: Ensure webdirs exists
    file:
      path: "{{ item }}"
      state: directory
    with_items:
      - /var/www/demo
      - /var/www/demo/img
      - /var/www/presentation
  - name: Ensure portal site exists
    copy:
      src: index.html
      dest: /var/www/demo/index.html
  - name: Copy images
    copy:
      src: "img/{{ item }}"
      dest: "/var/www/demo/img/{{ item }}"
    with_items:
      - logo.png
      - digitalocean.png
  vars:
    port_mapping:
      grafana: 3000
      prometheus: 9090
      alertmanager: 9093
      node: 9100
      blackbox: 9115
      snmp: 9116
    caddy_update: true
    caddy_systemd_capabilities_enabled: true
    caddy_features: http.prometheus
    caddy_config: |
      {{ ansible_host }} {
        ext .html
        root /var/www/demo/
        prometheus
        tls paulfantom@gmail.com
      }
      presentation.cloudalchemy.org {
        root /var/www/presentation
        tls paulfantom@gmail.com
      }
      {% for name, port in port_mapping.items() %}
      {{ name }}.{{ ansible_host }} {
        proxy / 127.0.0.1:{{ port }}
        tls paulfantom@gmail.com
      }
      {% endfor %}

- name: Setup random number exporter
  hosts: web
  tasks:
  - name: Locally build random_exporter
    shell: |
      go get -u github.com/prometheus/client_golang/examples/random
      mv $GOPATH/bin/random /tmp/random_exporter
    args:
      creates: /tmp/random_exporter
    delegate_to: localhost
    run_once: true
  - name: Copy random_exporter binary
    copy:
      src: /tmp/random_exporter
      dest: /usr/local/bin/random_exporter
      owner: root
      group: root
      mode: 0755
    notify: random_exporter restart
  - name: Copy systemd service file
    copy:
      dest: /etc/systemd/system/random_exporter.service
      mode: 0644
      content: "{{ random_exporter_systemd_service }}"
    notify: random_exporter restart
  handlers:
  - name: random_exporter restart
    systemd:
      name: random_exporter
      state: started
      daemon_reload: true
      enabled: true
  vars:
    random_exporter_systemd_service: |
      # Ansible managed
      [Unit]
      Description=Random Metrics Exporter
      After=network.target
      [Service]
      Type=simple
      User=nobody
      Group=nogroup
      ExecStart=/usr/local/bin/random_exporter -listen-address=:8999
      SyslogIdentifier=random_exporter
      Restart=always
      [Install]
      WantedBy=multi-user.target