groups:
  - name: alertmanager.rules
    rules:
      - alert: AlertmanagerConfigInconsistent
        annotations:
          message: |
            The configuration of the instances of the Alertmanager cluster `{{ $labels.namespace }}/{{ $labels.service }}` are out of sync.
            {{ range printf "alertmanager_config_hash{namespace=\"%s\",service=\"%s\"}" $labels.namespace $labels.service | query }}
            Configuration hash for pod {{ .Labels.pod }} is "{{ printf "%.f" .Value }}"
            {{ end }}
        expr: |
          count by(namespace,service) (count_values by(namespace,service) ("config_hash", alertmanager_config_hash{job="alertmanager-main",namespace="openshift-monitoring"})) != 1
        for: 5m
        labels:
          severity: critical