first add

docker-compose.yml

@@ -0,0 +1,21 @@
+services:
+  pg-app:
+    image: postgres:16
+    container_name: pg-app
+    restart: always
+    ports:
+      - "127.0.0.1:5433:5432"  # bind to localhost only
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: change-me-strong
+      POSTGRES_INITDB_ARGS: "--encoding=UTF8 --locale=en_US.UTF-8"
+    volumes:
+      - ./data:/var/lib/postgresql/data
+      - ./docker-init:/docker-entrypoint-initdb.d
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U $$POSTGRES_USER -d postgres"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+