{{- $alert := "CNPGClusterHighConnectionsWarning" -}}
{{- if not (has $alert .excludeRules) -}}
alert: {{ $alert }}
annotations:
  summary: CNPG Instance is approaching the maximum number of connections.
  description: |-
    CloudNativePG Cluster "{{ .namespace }}/{{ .cluster }}" instance {{ .labels.pod }} is using {{ .value }}% of
    the maximum number of connections.
  runbook_url: https://github.com/cloudnative-pg/charts/blob/main/charts/cluster/docs/runbooks/CNPGClusterHighConnectionsWarning.md
expr: |
  sum by (pod) (cnpg_backends_total{namespace="{{ .namespace }}", pod=~"{{ .podSelector }}"}) / max by (pod) (cnpg_pg_settings_setting{name="max_connections", namespace="{{ .namespace }}", pod=~"{{ .podSelector }}"}) * 100 > 80
for: 5m
labels:
  severity: warning
  namespace: {{ .namespace }}
  cnpg_cluster: {{ .cluster }}
{{- end -}}