use env. variables

docker-compose.yml

@@ -1,17 +1,17 @@
 services:
   postgres:
-    image: postgres:15-alpine
-    container_name: quote_postgres
+    image: postgres:17-alpine
+    container_name: quote_db
     environment:
-      POSTGRES_USER: quoteuser
-      POSTGRES_PASSWORD: quotepass123
-      POSTGRES_DB: quotes_db
+      POSTGRES_USER: ${DB_USER}
+      POSTGRES_PASSWORD: ${DB_PASSWORD}
+      POSTGRES_DB: ${DB_NAME}
     volumes:
       - postgres_data:/var/lib/postgresql/data
       - ./init.sql:/docker-entrypoint-initdb.d/01-init.sql
       - ./add_invoices.sql:/docker-entrypoint-initdb.d/02-add-invoices.sql
     ports:
-      - "5432:5432"
+      - "5433:5432"
     healthcheck:
       test: ["CMD-SHELL", "pg_isready -U quoteuser -d quotes_db"]
       interval: 10s
@@ -25,12 +25,12 @@ services:
     ports:
       - "3000:3000"
     environment:
-      NODE_ENV: production
-      DB_HOST: postgres
-      DB_PORT: 5432
-      DB_USER: quoteuser
-      DB_PASSWORD: quotepass123
-      DB_NAME: quotes_db
+      NODE_ENV: ${NODE_ENV}
+      DB_HOST: ${DB_HOST}
+      DB_PORT: ${DB_PORT}
+      DB_USER: ${DB_USER}
+      DB_PASSWORD: ${DB_PASSWORD}
+      DB_NAME: ${DB_NAME}
     volumes:
       - ./public/uploads:/app/public/uploads
       - ./templates:/app/templates  # NEU!