Add PodMonitor for crunchy exporter.

kubernetes/apps/database/crunchy-postgres/operator/kustomization.yaml

@@ -6,3 +6,4 @@ namespace: database
 resources:
   - ./helmrelease.yaml
   - ./objectbucketclaim.yaml
+  - ./podmonitor.yaml

kubernetes/apps/database/crunchy-postgres/operator/podmonitor.yaml

@@ -0,0 +1,30 @@
+# yaml-language-server: $schema=https://ks.hsn.dev/monitoring.coreos.com/podmonitor_v1.json
+---
+apiVersion: monitoring.coreos.com/v1
+kind: PodMonitor
+metadata:
+  name: crunchy-postgres-exporter
+spec:
+  selector:
+    matchLabels:
+      postgres-operator.crunchydata.com/crunchy-postgres-exporter: "true"
+  podMetricsEndpoints:
+    - port: "9187"
+      relabelings:
+        - sourceLabels: [__meta_kubernetes_pod_container_port_number]
+          action: keep
+          regex: "9187"
+        - sourceLabels: [__meta_kubernetes_namespace]
+          targetLabel: kubernetes_namespace
+        - sourceLabels: [__meta_kubernetes_pod_name]
+          targetLabel: pod
+        - sourceLabels: [__meta_kubernetes_namespace, __meta_kubernetes_pod_label_postgres_operator_crunchydata_com_cluster]
+          separator: ":"
+          targetLabel: pg_cluster
+          replacement: "$1$2"
+        - sourceLabels: [__meta_kubernetes_pod_ip]
+          targetLabel: ip
+        - sourceLabels: [__meta_kubernetes_pod_label_postgres_operator_crunchydata_com_instance]
+          targetLabel: deployment
+        - sourceLabels: [__meta_kubernetes_pod_label_postgres_operator_crunchydata_com_role]
+          targetLabel: role