feat: SignalingServer Docker Hub를 통한 배포

packages/backend/signalingServer/.dockerignore

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+node_modules
+dist
+.env
+*.log
+.git

packages/backend/signalingServer/Dockerfile

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+FROM node:18-alpine
+
+WORKDIR /app
+
+# Corepack 활성화 및 Yarn 버전 설정
+RUN corepack enable \
+    && corepack prepare [email protected] --activate
+
+# 패키지 파일 복사
+COPY package.json ./
+
+# 소스 코드 복사
+COPY . .
+
+# 의존성 설치
+RUN yarn install
+
+# 빌드
+RUN yarn build
+
+EXPOSE 8080
+
+CMD ["yarn", "start"]

packages/backend/signalingServer/docker-compose.yml

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+services:
+  signaling-server:
+    container_name: signaling-server
+    build:
+      context: ../../..
+      dockerfile: packages/backend/signalingServer/Dockerfile
+    ports:
+      - '8080:8080'
+    environment:
+      - NODE_ENV=production
+      - SIGNALING_SERVER_PORT=8080
+      - ORIGIN=http://localhost:3000
+    restart: always