Update docker-compose to use external postgres database

docker-compose.yml

@@ -1,37 +1,16 @@
 version: '3.8'
 
 services:
-  postgres-db:
-    image: postgres:15-alpine
-    environment:
-      - POSTGRES_USER=${POSTGRES_USER}
-      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
-      - POSTGRES_DB=${POSTGRES_DB}
-    volumes:
-      # PENTING: Lokasi folder data PostgreSQL di Node Manager
-      - /opt/inventory/pgdata:/var/lib/postgresql/data
-    deploy:
-      mode: replicated
-      replicas: 1
-      placement:
-        constraints:
-          # Database tetap dikunci di Node Manager agar file data tidak hilang
-          - node.role == manager
-      restart_policy:
-        condition: on-failure
-
   inventory-app:
     image: git.proit.id/ypratama/portal-inventory:latest
     ports:
       - "3000:3000"
     environment:
       - NODE_ENV=production
-      - DATABASE_URL=postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@postgres-db:5432/${POSTGRES_DB}?schema=public
+      - DATABASE_URL=${DATABASE_URL}
       - SESSION_SECRET=${SESSION_SECRET}
     deploy:
       mode: replicated
-      replicas: 2 # Aplikasi kini bisa disebar ke beberapa server!
+      replicas: 1
       restart_policy:
         condition: on-failure
-    depends_on:
-      - postgres-db