From a786069bcc55540dd8025a4e7bfc485c1415c90d Mon Sep 17 00:00:00 2001
From: Joseph Hanson <joe@veri.dev>
Date: Mon, 21 Oct 2024 13:12:49 -0500
Subject: [PATCH] add monitoring to crunchy postgres

---
 .../cluster/kustomization.yaml                |  1 +
 .../cluster/podmonitor.yaml                   | 38 +++++++++++++++++++
 .../cluster/postgrescluster.yaml              |  8 +++-
 3 files changed, 46 insertions(+), 1 deletion(-)
 create mode 100644 kubernetes/apps/database/crunchy-postgres-operator/cluster/podmonitor.yaml

diff --git a/kubernetes/apps/database/crunchy-postgres-operator/cluster/kustomization.yaml b/kubernetes/apps/database/crunchy-postgres-operator/cluster/kustomization.yaml
index ef1ce0d0..a89bb946 100644
--- a/kubernetes/apps/database/crunchy-postgres-operator/cluster/kustomization.yaml
+++ b/kubernetes/apps/database/crunchy-postgres-operator/cluster/kustomization.yaml
@@ -5,6 +5,7 @@ kind: Kustomization
 resources:
   - ./externalsecret.yaml
   - ./gatus.yaml
+  - ./podmonitor.yaml
   - ./postgrescluster.yaml
   - ./pushsecret.yaml
   - ./service.yaml
diff --git a/kubernetes/apps/database/crunchy-postgres-operator/cluster/podmonitor.yaml b/kubernetes/apps/database/crunchy-postgres-operator/cluster/podmonitor.yaml
new file mode 100644
index 00000000..1afb583c
--- /dev/null
+++ b/kubernetes/apps/database/crunchy-postgres-operator/cluster/podmonitor.yaml
@@ -0,0 +1,38 @@
+---
+# yaml-language-server: $schema=https://ks.hsn.dev/monitoring.coreos.com/podmonitor_v1.json
+apiVersion: monitoring.coreos.com/v1
+kind: PodMonitor
+metadata:
+  name: cpgo-postgres
+spec:
+  jobLabel: cpgo-postgres
+  namespaceSelector:
+    matchNames:
+      - database
+  podMetricsEndpoints:
+    - honorLabels: true
+      path: /metrics
+      port: exporter
+      relabelings:
+        - sourceLabels:
+            [
+              "__meta_kubernetes_namespace",
+              "__meta_kubernetes_pod_label_postgres_operator_crunchydata_com_cluster",
+            ]
+          targetLabel: pg_cluster
+          separator: "/"
+          replacement: "$1$2"
+        - sourceLabels:
+            [
+              __meta_kubernetes_pod_label_postgres_operator_crunchydata_com_instance,
+            ]
+          targetLabel: deployment
+        - sourceLabels:
+            [__meta_kubernetes_pod_label_postgres_operator_crunchydata_com_role]
+          targetLabel: role
+        - sourceLabels: [__meta_kubernetes_pod_name]
+          targetLabel: instance
+  selector:
+    matchLabels:
+      postgres-operator.crunchydata.com/cluster: postgres
+      postgres-operator.crunchydata.com/crunchy-postgres-exporter: "true"
diff --git a/kubernetes/apps/database/crunchy-postgres-operator/cluster/postgrescluster.yaml b/kubernetes/apps/database/crunchy-postgres-operator/cluster/postgrescluster.yaml
index d5ee4f97..7d8d9e82 100644
--- a/kubernetes/apps/database/crunchy-postgres-operator/cluster/postgrescluster.yaml
+++ b/kubernetes/apps/database/crunchy-postgres-operator/cluster/postgrescluster.yaml
@@ -23,7 +23,13 @@ spec:
     pgmonitor:
       exporter:
         # https://github.com/CrunchyData/postgres-operator-examples/blob/main/helm/install/values.yaml
-        image: registry.developers.crunchydata.com/crunchydata/crunchy-postgres-exporter:ubi8-0.15.0-3
+        # image: registry.developers.crunchydata.com/crunchydata/crunchy-postgres-exporter:ubi8-0.15.0-12
+        resources:
+          requests:
+            cpu: 10m
+            memory: 64M
+          limits:
+            memory: 512M
 
   patroni: # turn on sync writes to at least 1 other replica
     dynamicConfiguration: