Exercice 26

https://awesome-prometheus-alerts.grep.to/rules.html

Créer le fichier /opt/prometheus/config/rules/basic.rules.yml et ajouter :

groups:
- name: example
  rules:
  - alert: (PXX) Instance down
    expr: count(up == 0) >= 1
    for: 1m
    labels:
      severity: page
    annotations:
      summary: (PXX) Instance down
      description: >
        (PXX) Instance down {{ range query "up == 0" }}
        - {{ .Labels.instance }} - {{ .Labels.job }}
        {{ end }}