ansible/roles/prometheus_federate/templates/prometheus/alert.rules.yml.j2

---
{{ ansible_managed | comment }}

{% macro raw(string) -%}
{{ "{{" }} {{ string }} {{ "}}" }}
{%- endmacro %}

{% set instance = "[{{ $labels.instance }}]" %}

groups:
  - name: alert.rules
    rules:
      - alert: FederateInstanceDown
        expr: up{job="federate"} == 0
        for: 3m
        labels:
          severity: critical
        annotations:
          summary: >-
            {{ instance }} Invisible depuis plus de 3 minutes
...