# Scrapes Longhorn's own metrics (volume robustness, node and disk capacity)
# so the external Grafana can alert when a volume becomes degraded or faulted.
#
# Every longhorn-manager Pod serves /metrics on its `manager` port (9500)
# behind the longhorn-backend Service. A VMServiceScrape scrapes each Pod
# behind that Service, so metrics from managers on both storage workers are
# collected, not just whichever one a load-balanced request would hit.
#
# This lives in the victoria-metrics wrapper chart rather than the Longhorn
# app because it is monitoring configuration, and it depends on the
# VMServiceScrape CRD installed by this chart's operator. Sync wave "1" makes
# Argo CD apply it only after that CRD exists on a fresh install.
apiVersion: operator.victoriametrics.com/v1beta1
kind: VMServiceScrape
metadata:
  name: longhorn
  namespace: monitoring
  annotations:
    argocd.argoproj.io/sync-wave: "1"
spec:
  namespaceSelector:
    matchNames:
      - longhorn-system
  selector:
    matchLabels:
      app: longhorn-manager
  endpoints:
    - port: manager
      path: /metrics
      interval: 30s