compose 에러 질문

docker-compose.yml 파일이 아래와 같은데

계속 mysql 관련 에러가 뜹니다. --initialize specified but the data directory has files in it. Aborting. restart가 unless-stooped라 계속 껏다 켜집니다.

그리고 해당 사이트에 접속시 nginx 502 bad gate 에러가 뜹니다. stdin_open: true를 넣었습니다.

로그 nginx_1 | 2020/11/07 07:26:20 [error] 27#27: *1 connect() failed (113: No route to host) while connecting to upstream, client: 192.168.99.1, server: , request: "GET /favicon.ico HTTP/1.1", upstream: "http://172.21.0.3:3000/favicon.ico", host: "192.168.99.100:3000", referrer: "http://192.168.99.100:3000/"

version: "3"
services:
  frontend:
    build:
      dockerfile: Dockerfile.dev
      context: ./frontend
    volumes:
      - /app/node_modules
      - ./frontend:/app
    environment: 
      - CHOKIDAR_USEPOLLING=true
    stdin_open: true

  nginx: 
    restart: always
    build:
      dockerfile: Dockerfile
      context: ./nginx
    ports: 
      - "3000:80"

  backend:
    build: 
      dockerfile: Dockerfile.dev
      context: ./backend
    container_name: app_backend
    volumes:
      - /app/node_modules
      - ./backend:/app
  mysql:
    build: 
      dockerfile: Dockerfile
      context: ./mysql
    restart: unless-stopped
    container_name: app_mysql
    ports:
      - "3306:3306"
    volumes:
      - ./mysql/mysql_data:/var/lib/mysql
      - ./mysql/sqls/:/docker-entrypoint-initdb.d/
    environment:
      MYSQL_ROOT_PASSWORD: root
      MYSQL_DATABASE: myapp

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