Pass API database configuration through environment variables

Author: Rub21

osm-seed/templates/db/db-statefulset.yaml

@@ -36,15 +36,33 @@ spec:
             - name: POSTGRES_HOST
               value: {{ .Release.Name }}-db
             - name: POSTGRES_DB
-              value: {{ .Values.db.env.POSTGRES_DB }}
+              value: {{ .Values.db.env.POSTGRES_DB | quote }}
             - name: POSTGRES_PASSWORD
-              value: {{ quote .Values.db.env.POSTGRES_PASSWORD }}
+              value: {{ quote .Values.db.env.POSTGRES_PASSWORD | quote }}
             - name: POSTGRES_USER
               value: {{ default "postgres" .Values.db.env.POSTGRES_USER | quote }}
             - name: PGUSER
               value: {{ default "postgres" .Values.db.env.POSTGRES_USER | quote }}
             - name: PGDATA
-              value: {{ .Values.db.persistenceDisk.mountPath }}
+              value: {{ .Values.db.persistenceDisk.mountPath | quote }}
+            - name: POSTGRES_DB_MAX_CONNECTIONS
+              value: {{ default 100 .Values.db.env.POSTGRES_DB_MAX_CONNECTIONS | quote }}
+            - name: POSTGRES_DB_SHARED_BUFFERS
+              value: {{ default "128MB" .Values.db.env.POSTGRES_DB_SHARED_BUFFERS | quote }}
+            - name: POSTGRES_DB_TEMP_BUFFERS
+              value: {{ default "8MB" .Values.db.env.POSTGRES_DB_TEMP_BUFFERS | quote }}
+            - name: POSTGRES_DB_WORK_MEM
+              value: {{ default "4MB" .Values.db.env.POSTGRES_DB_WORK_MEM | quote }}
+            - name: POSTGRES_DB_MAINTENANCE_WORK_MEM
+              value: {{ default "128MB" .Values.db.env.POSTGRES_DB_MAINTENANCE_WORK_MEM | quote }}
+            - name: POSTGRES_DB_EFFECTIVE_CACHE_SIZE
+              value: {{ default "4GB" .Values.db.env.POSTGRES_DB_EFFECTIVE_CACHE_SIZE | quote }}
+            - name: POSTGRES_DB_MAX_WAL_SIZE
+              value: {{ default "16MB" .Values.db.env.POSTGRES_DB_MAX_WAL_SIZE | quote }}
+            - name: POSTGRES_DB_MIN_WAL_SIZE
+              value: {{ default "5MB" .Values.db.env.POSTGRES_DB_MIN_WAL_SIZE | quote }}
+            - name: POSTGRES_DB_RANDOM_PAGE_COST
+              value: {{ default "4.0" .Values.db.env.POSTGRES_DB_RANDOM_PAGE_COST | quote }}
             - name: POD_IP
               valueFrom: { fieldRef: { fieldPath: status.podIP } }
           livenessProbe:

osm-seed/values.yaml

@@ -73,7 +73,16 @@ db:
   env:
     POSTGRES_DB: openstreetmap
     POSTGRES_USER: postgres
-    POSTGRES_PASSWORD: "1234"
+    POSTGRES_PASSWORD: "abc"
+    POSTGRES_DB_MAX_CONNECTIONS: 100
+    POSTGRES_DB_SHARED_BUFFERS: 128MB
+    POSTGRES_DB_TEMP_BUFFERS: 8MB
+    POSTGRES_DB_WORK_MEM: 4MB
+    POSTGRES_DB_MAINTENANCE_WORK_MEM: 128MB
+    POSTGRES_DB_EFFECTIVE_CACHE_SIZE: 4GB
+    POSTGRES_DB_MAX_WAL_SIZE: 16MB
+    POSTGRES_DB_MIN_WAL_SIZE: 5MB
+    POSTGRES_DB_RANDOM_PAGE_COST: 4.0
   persistenceDisk:
     enabled: false
     mountPath: /var/lib/postgresql/data