Merge pull request #12 from toddaheath/feat/postgres-statefulset

feat: convert postgres Deployment to StatefulSet

Author: toddaheath

deploy/helm/shed-builder/templates/postgres-pvc.yaml

@@ -1,43 +1,54 @@
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: {{ include "shed-builder.fullname" . }}-postgres
-  labels:
-    {{- include "shed-builder.labels" . | nindent 4 }}
-    app.kubernetes.io/component: postgres
-spec:
-  replicas: 1
-  selector:
-    matchLabels:
-      app.kubernetes.io/name: {{ .Chart.Name }}
-      app.kubernetes.io/instance: {{ .Release.Name }}
-      app.kubernetes.io/component: postgres
-  template:
-    metadata:
-      labels:
-        app.kubernetes.io/name: {{ .Chart.Name }}
-        app.kubernetes.io/instance: {{ .Release.Name }}
-        app.kubernetes.io/component: postgres
-    spec:
-      containers:
-        - name: postgres
-          image: "{{ .Values.postgres.image.repository }}:{{ .Values.postgres.image.tag }}"
-          ports:
-            - containerPort: {{ .Values.postgres.port }}
-          env:
-            - name: POSTGRES_DB
-              value: {{ .Values.postgres.database }}
-            - name: POSTGRES_USER
-              value: {{ .Values.postgres.username }}
-            - name: POSTGRES_PASSWORD
-              valueFrom:
-                secretKeyRef:
-                  name: {{ include "shed-builder.fullname" . }}-db
-                  key: postgres-password
-          volumeMounts:
-            - name: postgres-data
-              mountPath: /var/lib/postgresql/data
-      volumes:
-        - name: postgres-data
-          persistentVolumeClaim:
-            claimName: {{ include "shed-builder.fullname" . }}-postgres
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: {{ include "shed-builder.fullname" . }}-postgres
+  labels:
+    {{- include "shed-builder.labels" . | nindent 4 }}
+    app.kubernetes.io/component: postgres
+spec:
+  serviceName: {{ include "shed-builder.fullname" . }}-postgres
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: {{ .Chart.Name }}
+      app.kubernetes.io/instance: {{ .Release.Name }}
+      app.kubernetes.io/component: postgres
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: {{ .Chart.Name }}
+        app.kubernetes.io/instance: {{ .Release.Name }}
+        app.kubernetes.io/component: postgres
+    spec:
+      containers:
+        - name: postgres
+          image: "{{ .Values.postgres.image.repository }}:{{ .Values.postgres.image.tag }}"
+          ports:
+            - containerPort: {{ .Values.postgres.port }}
+          env:
+            - name: POSTGRES_DB
+              value: {{ .Values.postgres.database }}
+            - name: POSTGRES_USER
+              value: {{ .Values.postgres.username }}
+            - name: POSTGRES_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "shed-builder.fullname" . }}-db
+                  key: postgres-password
+            - name: PGDATA
+              value: /var/lib/postgresql/data/pgdata/initdb
+          volumeMounts:
+            - name: postgres-data
+              mountPath: /var/lib/postgresql/data
+  volumeClaimTemplates:
+    - metadata:
+        name: postgres-data
+      spec:
+        accessModes:
+          - ReadWriteOnce
+        {{- if .Values.postgres.storage.storageClass }}
+        storageClassName: {{ .Values.postgres.storage.storageClass }}
+        {{- end }}
+        resources:
+          requests:
+            storage: {{ .Values.postgres.storage.size }}