Harden dev environment configuration

docker-compose.yml

@@ -6,8 +6,8 @@ services:
       POSTGRES_DB: merchantsofhope_supplyanddemandportal
       POSTGRES_USER: merchantsofhope_user
       POSTGRES_PASSWORD: merchantsofhope_password
-    ports:
-      - "0.0.0.0:5432:5432"
+    expose:
+      - "5432"
     volumes:
       - merchantsofhope-supplyanddemandportal-postgres-data:/var/lib/postgresql/data
     networks:
@@ -22,9 +22,10 @@ services:
       NODE_ENV: development
       DATABASE_URL: postgresql://merchantsofhope_user:merchantsofhope_password@merchantsofhope-supplyanddemandportal-database:5432/merchantsofhope_supplyanddemandportal
       JWT_SECRET: merchantsofhope_jwt_secret_key_2024
-      PORT: 3001
-    ports:
-      - "0.0.0.0:3001:3001"
+      HOST: ${BACKEND_HOST:-0.0.0.0}
+      PORT: ${BACKEND_PORT:-3001}
+    expose:
+      - "3001"
     depends_on:
       - merchantsofhope-supplyanddemandportal-database
     volumes:
@@ -39,9 +40,11 @@ services:
       dockerfile: Dockerfile
     container_name: merchantsofhope-supplyanddemandportal-frontend
     environment:
-      REACT_APP_API_URL: http://localhost:3001
+      HOST: ${FRONTEND_HOST:-0.0.0.0}
+      PORT: ${FRONTEND_PORT:-12000}
+      REACT_APP_API_URL: http://merchantsofhope-supplyanddemandportal-backend:3001
     ports:
-      - "0.0.0.0:12000:3000"
+      - "0.0.0.0:12000:12000"
     depends_on:
       - merchantsofhope-supplyanddemandportal-backend
     volumes: