# Generated from 'alertmanager.rules' group from https://raw.githubusercontent.com/coreos/prometheus-operator/master/contrib/kube-prometheus/manifests/prometheus-rules.yaml
# Do not change in-place! In order to change this file first read following link:
# https://github.com/helm/charts/tree/master/stable/prometheus-operator/hack
{{- if and .Values.defaultRules.create .Values.defaultRules.rules.alertmanager }}
{{- $operatorJob := printf "%s-%s" (include "prometheus-operator.fullname" .) "operator" }}
{{- $alertmanagerJob := printf "%s-%s" (include "prometheus-operator.fullname" .) "alertmanager" }}
{{- $namespace := .Release.Namespace }}
apiVersion: {{ printf "%s/v1" (.Values.prometheusOperator.crdApiGroup | default "monitoring.coreos.com") }}
kind: PrometheusRule
metadata:
  name: {{ printf "%s-%s" (include "prometheus-operator.fullname" .) "alertmanager.rules" | trunc 63 | trimSuffix "-" }}
  labels:
    app: {{ template "prometheus-operator.name" . }}
{{ include "prometheus-operator.labels" . | indent 4 }}
{{- if .Values.defaultRules.labels }}
{{ toYaml .Values.defaultRules.labels | indent 4 }}
{{- end }}
{{- if .Values.defaultRules.annotations }}
  annotations:
{{ toYaml .Values.defaultRules.annotations | indent 4 }}
{{- end }}
spec:
  groups:
  - name: alertmanager.rules
    rules:
    - alert: AlertmanagerConfigInconsistent
      annotations:
        message: The configuration of the instances of the Alertmanager cluster `{{`{{$labels.service}}`}}` are out of sync.
      expr: count_values("config_hash", alertmanager_config_hash{job="{{ $alertmanagerJob }}",namespace="{{ $namespace }}"}) BY (service) / ON(service) GROUP_LEFT() label_replace(prometheus_operator_spec_replicas{job="{{ $operatorJob }}",namespace="{{ $namespace }}",controller="alertmanager"}, "service", "$1", "name", "(.*)") != 1
      for: 5m
      labels:
        severity: critical
    - alert: AlertmanagerFailedReload
      annotations:
        message: Reloading Alertmanager's configuration has failed for {{`{{ $labels.namespace }}`}}/{{`{{ $labels.pod}}`}}.
      expr: alertmanager_config_last_reload_successful{job="{{ $alertmanagerJob }}",namespace="{{ $namespace }}"} == 0
      for: 10m
      labels:
        severity: warning
    - alert: AlertmanagerMembersInconsistent
      annotations:
        message: Alertmanager has not found all other members of the cluster.
      expr: |-
        alertmanager_cluster_members{job="{{ $alertmanagerJob }}",namespace="{{ $namespace }}"}
          != on (service) GROUP_LEFT()
        count by (service) (alertmanager_cluster_members{job="{{ $alertmanagerJob }}",namespace="{{ $namespace }}"})
      for: 5m
      labels:
        severity: critical
{{- end }}