Update postgres chart to include WAL limits

Author: milosmns

postgres-cluster/Chart.lock

@@ -1,6 +1,6 @@
 dependencies:
 - name: cloudnative-pg
   repository: https://cloudnative-pg.github.io/charts
-  version: 0.23.2
-digest: sha256:80652a5b243eaf6f6b3292a54bac257557d1d8b18fff691b4649a211cc532b43
-generated: "2025-03-21T22:37:30.597034+01:00"
+  version: 0.27.1
+digest: sha256:62ef7cd5c6d074bba8be6a150d465b8baad37808ae6f36335cab77e5b96f2017
+generated: "2026-02-18T13:10:21.235228+01:00"

postgres-cluster/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v2
 name: postgres-cluster
 description: CloudNative PostgreSQL cluster
-version: 0.3.1
+version: 0.4.0
 type: application
 dependencies:
   - name: cloudnative-pg

postgres-cluster/templates/cluster.yaml

@@ -8,6 +8,9 @@ spec:
     parameters:
       max_connections: "{{ .Values.cnpg.parameters.max_connections }}"
       shared_buffers: "{{ .Values.cnpg.parameters.shared_buffers }}"
+      archive_mode: "{{ .Values.cnpg.parameters.archive_mode }}"
+      wal_keep_size: "{{ .Values.cnpg.parameters.wal_keep_size }}"
+      max_wal_size: "{{ .Values.cnpg.parameters.max_wal_size }}"
   resources:
     requests:
       memory: {{ .Values.cnpg.resources.requests.memory | quote }}

postgres-cluster/values.yaml

@@ -27,6 +27,10 @@ cnpg:
   parameters:
     max_connections: "50"
     shared_buffers: "16MB"
+    # WAL management - prevents disk from filling up
+    archive_mode: "off"
+    wal_keep_size: "512MB"
+    max_wal_size: "1GB"
 
   # Bootstrap configuration (to edit via Helm CLI)
   bootstrap: