{{- if .Values.prometheus.rules.enabled }}
apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
  name: {{ include "headscale.fullname" . }}
  labels:
    {{- include "headscale.labels" . | nindent 4 }}
    {{- with .Values.prometheus.rules.labels }}
    {{- toYaml . | nindent 4 }}
    {{- end }}
spec:
  groups:
  {{- if .Values.prometheus.rules.defaults.enabled }}
  - name: {{ template "headscale.fullname" . }}-Defaults
    rules:
	  {{- range $key, $value := .Values.prometheus.rules.defaults.lastUpdates }}
      - alert: "Headscale: offline machines"
        expr: 'time() - sum(headscale_last_update_seconds{ {{ $.Values.prometheus.rules.defaults.filter }} }) without(endpoint,container,pod,instance,service,namespace,job) > {{ $value }}'
        for: "1m"
        labels:
          severity: "{{ $key }}"
        {{`
        annotations:
          summary: "{{ $labels.machine }} of {{ $labels.user }} is offline for {{ humanizeDuration $value }}"
        `}}
	  {{- end }}
  {{- end }}
  {{- if .Values.prometheus.rules.additionalRules }}
  - name: {{ template "headscale.fullname" . }}-Additional
    rules: {{- toYaml .Values.prometheus.rules.additionalRules | nindent 4 }}
  {{- end }}
{{- end }}