---
# Manually-managed PodMonitor for the knoe-db CNPG cluster.
#
# Replaces the deprecated spec.monitoring.enablePodMonitor +
# spec.monitoring.podMonitorRelabelings fields in knoe-db.yaml (both flagged
# for removal by the CNPG operator; see queue #13 in docs/TODO.md).
#
# The relabeling rule injects a `cluster` label on every scraped sample,
# sourced from the cnpg.io/cluster pod label. The CNPG Grafana dashboards
# filter every panel by `cluster="$cluster"`, so without this relabel only
# 2 of 85 CNPG metrics (the operator-collector ones) render.
#
# Apply alongside knoe-db.yaml:
#   kubectl apply -f deploy/gcp/gke/knoe-db-podmonitor.yaml
apiVersion: monitoring.coreos.com/v1
kind: PodMonitor
metadata:
  name: knoe-db
  namespace: knoe-db-0
  labels:
    # Match the label selector used by kube-prometheus-stack's Prometheus
    # instance so this PodMonitor is picked up automatically.
    release: kps
spec:
  selector:
    matchLabels:
      cnpg.io/cluster: knoe-db
  podMetricsEndpoints:
    - port: metrics
      relabelings:
        - sourceLabels: ["__meta_kubernetes_pod_label_cnpg_io_cluster"]
          targetLabel: cluster
          action: replace