Monitoring Compatibility with PGO v4 & PGO v5

Updates the Prometheus configuration in the monitoring installer for
pgMonitor v4.5, which provides compatibility with PGO v4 and PGO v5
PostgreSQL clusters.

Author: andrewlecuyer

kustomize/monitoring/prometheus-config.yaml

@@ -19,12 +19,22 @@ data:
       - role: pod
 
       relabel_configs:
-      - source_labels: [__meta_kubernetes_pod_label_postgres_operator_crunchydata_com_crunchy_postgres_exporter]
+      - source_labels: [__meta_kubernetes_pod_label_postgres_operator_crunchydata_com_crunchy_postgres_exporter,__meta_kubernetes_pod_label_crunchy_postgres_exporter]
         action: keep
         regex: true
+        separator: ""
       - source_labels: [__meta_kubernetes_pod_container_port_number]
         action: drop
         regex: 5432
+      - source_labels: [__meta_kubernetes_pod_container_port_number]
+        action: drop
+        regex: 10000
+      - source_labels: [__meta_kubernetes_pod_container_port_number]
+        action: drop
+        regex: 8009
+      - source_labels: [__meta_kubernetes_pod_container_port_number]
+        action: drop
+        regex: 2022
       - source_labels: [__meta_kubernetes_pod_container_port_number]
         action: drop
         regex: ^$
@@ -33,19 +43,25 @@ data:
         target_label: kubernetes_namespace
       - source_labels: [__meta_kubernetes_pod_name]
         target_label: pod
-      - source_labels: [__meta_kubernetes_namespace,__meta_kubernetes_pod_label_postgres_operator_crunchydata_com_cluster]
+      - source_labels: [__meta_kubernetes_pod_label_postgres_operator_crunchydata_com_cluster,__meta_kubernetes_pod_label_pg_cluster]
+        target_label: cluster
+        separator: ""
+        replacement: '$1'
+      - source_labels: [__meta_kubernetes_namespace,cluster]
         target_label: pg_cluster
-        separator: ':'
+        separator: ":"
         replacement: '$1$2'
       - source_labels: [__meta_kubernetes_pod_ip]
         target_label: ip
         replacement: '$1'
-      - source_labels: [__meta_kubernetes_pod_label_postgres_operator_crunchydata_com_instance]
+      - source_labels: [__meta_kubernetes_pod_label_postgres_operator_crunchydata_com_instance,__meta_kubernetes_pod_label_deployment_name]
         target_label: deployment
         replacement: '$1'
-      - source_labels: [__meta_kubernetes_pod_label_postgres_operator_crunchydata_com_role]
+        separator: ""
+      - source_labels: [__meta_kubernetes_pod_label_postgres_operator_crunchydata_com_role,__meta_kubernetes_pod_label_role]
         target_label: role
         replacement: '$1'
+        separator: ""
       - source_labels: [dbname]
         target_label: dbname
         replacement: '$1'