chore: upgrade to Postgres 15 and add init-script

postgres.yaml

@@ -7,6 +7,30 @@ data:
   DB_PORT: "5432"
   DB_USER: "postgres"
 ---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: postgres-init
+data:
+  initdb.sh: |-
+    #!/usr/bin/env bash
+    set -e
+
+    psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
+    	CREATE DATABASE schemas WITH OWNER postgres ENCODING utf8;
+    	CREATE DATABASE accounting WITH OWNER postgres ENCODING utf8;
+    	CREATE DATABASE authz WITH OWNER postgres ENCODING utf8;
+    	CREATE DATABASE company WITH OWNER postgres ENCODING utf8;
+    	CREATE DATABASE consumer WITH OWNER postgres ENCODING utf8;
+    	CREATE DATABASE employee WITH OWNER postgres ENCODING utf8;
+    	CREATE DATABASE invoice WITH OWNER postgres ENCODING utf8;
+    	CREATE DATABASE notification WITH OWNER postgres ENCODING utf8;
+    	CREATE DATABASE salary WITH OWNER postgres ENCODING utf8;
+    	CREATE DATABASE time WITH OWNER postgres ENCODING utf8;
+    	CREATE DATABASE dancefinder WITH OWNER postgres ENCODING utf8;
+    	CREATE DATABASE hifi WITH OWNER postgres ENCODING utf8;
+    EOSQL
+---
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -23,7 +47,7 @@ spec:
     spec:
       containers:
       - name: postgres
-        image: postgres:12.0
+        image: argoyle/postgres-sv_se:15
         imagePullPolicy: "IfNotPresent"
         resources:
           requests:
@@ -42,10 +66,16 @@ spec:
         volumeMounts:
         - name: data
           mountPath: /var/lib/postgresql/data
+        - mountPath: /docker-entrypoint-initdb.d/initdb.sh
+          name: initdb
+          subPath: initdb.sh
       volumes:
       - name: data
         hostPath:
           path: /data/postgres
+      - name: initdb
+        configMap:
+          name: postgres-init
 ---
 apiVersion: v1
 kind: Service