apiVersion: v1
kind: Service
metadata:
  name: prop-metrics
  namespace: prop
  labels:
    app: prop
    purpose: metrics
spec:
  type: NodePort
  # Don't pin scrapes to a single pod — we want Prometheus to sample
  # across all replicas so BEAM-level metrics (memory, scheduler util)
  # stay representative. DB-backed gauges (oban queue depth) are
  # identical across pods so per-scrape rotation is fine there too.
  sessionAffinity: None
  selector:
    app: prop
    # Restrict to hot pods. prop-backfill carries the same `app: prop`
    # label but runs PHX_SERVER=false (no listener on :5000), so an
    # unscoped selector lands ~50% of scrapes on a closed port.
    tier: hot
  ports:
    - name: metrics
      # Fixed high-numbered NodePort so the external Prometheus at
      # 10.0.15.31 can scrape `nodeIP:30090` without needing k8s SD.
      nodePort: 30090
      port: 5000
      targetPort: 5000
      protocol: TCP