chore: docker-compose.yaml 수정

docker-compose.yaml

@@ -3,7 +3,7 @@ services:
     image: kimsudang/nest-js-app:latest
     container_name: app_container
     ports:
-      - '${PORT:-8080}:${PORT:-8080}'
+      - '${PORT}:${PORT}'
     environment:
       - PORT=${PORT}
       - MYSQL_HOST=${MYSQL_HOST}
@@ -31,7 +31,7 @@ services:
     image: mysql:8.0
     container_name: mysql_container
     ports:
-      - '${MYSQL_PORT:-3306}:${MYSQL_PORT:-3306}'
+      - '${MYSQL_PORT}:${MYSQL_PORT}'
     volumes:
       - mysql_data:/var/lib/mysql
     environment:
@@ -52,7 +52,7 @@ services:
     image: redis:latest
     container_name: redis_container
     ports:
-      - '${REDIS_PORT:-6379}:${REDIS_PORT:-6379}'
+      - '${REDIS_PORT}:${REDIS_PORT}'
     command: redis-server --requirepass ${REDIS_PASSWORD} --port ${REDIS_PORT} --appendonly yes
     volumes:
       - redis_data:/data
@@ -68,7 +68,7 @@ services:
     image: mongo:5.0.9
     container_name: mongo_container
     ports:
-      - '${MONGO_PORT:-27017}:${MONGO_PORT:-27017}'
+      - '${MONGO_PORT}:${MONGO_PORT}'
     volumes:
       - mongo_data:/data/db
     environment: