ansible/roles/prometheus/templates/prometheus.yml.j2

---
{{ ansible_managed | comment }}

global:
  # scrape_interval is set to the global default (60s)
  # evaluation_interval is set to the global default (60s)
  # scrape_timeout is set to the global default (10s).

  # Attach these labels to any time series or alerts when communicating with
  # external systems (federation, remote storage, Alertmanager).
  external_labels:
      federated_instance: '{{ inventory_hostname }}'

# Alertmanager configuration
# Use prometheus alertmanager installed on the same machine
alerting:
  alertmanagers:
  - static_configs:
    - targets: ['{{ prometheus_alertmanager }}']

# Load rules once and periodically evaluate them according to the global 'evaluation_interval'.
rule_files:
  - "alert.rules.yml"  # Monitoring alerts, this is the file you may be searching!
  - "django.rules.yml"  # Custom rules specific for Django project monitoring

# A scrape configuration containing exactly one endpoint to scrape:
# Here it's Prometheus itself.
scrape_configs:
  # The .json in file_sd_configs is dynamically reloaded

  - job_name: prometheus
    static_configs:
      - targets:
        - localhost:9090

  - job_name: servers
    file_sd_configs:
      - files:
        - '/etc/prometheus/targets.json'
    relabel_configs:
      # Do not put :9100 in instance name, rather here
      - source_labels: [__address__]
        target_label: __param_target
      - source_labels: [__param_target]
        target_label: instance
      - source_labels: [__param_target]
        target_label: __address__
        replacement: '$1:9100'

  - job_name: unifi_snmp
    file_sd_configs:
      - files:
        - '/etc/prometheus/targets_unifi_snmp.json'
    metrics_path: /snmp
    params:
      module: [ubiquiti_unifi]
    relabel_configs:
      - source_labels: [__address__]
        target_label: __param_target
      - source_labels: [__param_target]
        target_label: instance
      - target_label: __address__
        replacement: 127.0.0.1:9116

  - job_name: django
    scheme: https
    static_configs:
    - targets: []

  - job_name: ups_snmp
    file_sd_configs:
      - files:
        - '/etc/prometheus/targets_ups_snmp.json'
    metrics_path: /snmp
    params:
      module: [eatonups]
    relabel_configs:
      - source_labels: [__address__]
        target_label: __param_target
      - source_labels: [__param_target]
        target_label: instance
      - target_label: __address__
        replacement: 127.0.0.1:9116

  - job_name: switch_snmp
    file_sd_configs:
      - files:
        - "/etc/prometheus/targets_switch_snmp.json"
    metrics_path: /snmp
    params:
      module: [procurve_switch]
    relabel_configs:
      - source_labels: [__address__]
        target_label: __param_target
      - source_labels: [__param_target]
        target_label: instance
      - target_label: __address__
        replacement: 127.0.0.1:9116

  - job_name: docker
    file_sd_configs:
      - files:
        - '/etc/prometheus/targets_docker.json'
...