play_example.yml

---
- hosts: aws-prometheus
  connection: ssh
  hosts: 52.19.225.214
  become: yes
  become_user: root
  user: ec2-user
  roles:
    - ../roles/ansible-prometheus
  vars:
    install_prometheus: true
    install_alertmanager: true
    install_blackbox_exporter: true
    install_node_exporter: true
    alertmanager_ip: "{{ ansible_eth0.ipv4.address }}"
    # prometheus.yml
    prometheus_external_labels:
      datacenter: pdc
    prometheus_rule_files:
      - '/prometheus-data/alert.rules'
      - '/prometheus-data/my_custom_rules.rules'
    prometheus_scrape_configs:
    - job_name: 'prometheus'
      scrape_interval: 10s
      scrape_timeout:  10s
      static_configs:
        - targets: ['localhost:9090']
    - job_name: 'node_exporter'
      scrape_interval: 5s
      static_configs:
        - targets:
          - "{{ ansible_eth0.ipv4.address }}:9100"
    - job_name: 'blackbox'
      metrics_path: /probe
      params:
        module: [http_2xx]
      static_configs:
        - targets:
          - "{{ ansible_eth0.ipv4.address }}:9090"
      relabel_configs:
        - source_labels: [__address__]
          regex: (.*)(:9090)?
          target_label: __param_target
          replacement: ${1}
        - source_labels: [__param_target]
          regex: (.*)
          target_label: instance
          replacement: ${1}
        - source_labels: []
          regex: .*
          target_label: __address__
          replacement: "{{ ansible_eth0.ipv4.address }}:9115"  # Blackbox exporter.
    # alertmanager.yml
    alertmanager_route:
      group_by: ['cluster','alertname','host']
      group_wait: 30s
      group_interval: 2m
      repeat_interval: 10m
      receiver: slack_general
      routes:
        - match:
            severity: warning
          receiver: slack_general
        - match:
              severity: critical
          receiver: slack_general
          continue: true
        - match:
              severity: critical
          receiver: pagerduty_uk
          continue: true
    alertmanager_receivers:
    - name: slack_general
      slack_configs:
      - send_resolved: true
        api_url: 'https://hooks.slack.com/services/XXX/XXXXX/XXXXXXXXXXX'
        channel: '#alerts'
    - name: pagerduty_uk
      pagerduty_configs:
      - service_key: XXXXXXXXXXXXXXX
        send_resolved: true