rails and db, swagger, redoc for docker

docker-compose.yml

version: '3'
services:
  app:
    build: .
    volumes:
       - ./:/usr/src/app
    ports:
      - "3000:3000"
    depends_on:
      - db
    stdin_open: true
    tty: true
    command: bundle exec rails server -b 0.0.0.0
    environment:
      DB_USERNAME: root
      DB_PASSWORD: passwd
      DB_HOST: db
      OPENAPI: 1
      RUBYOPT: '--disable-did_you_mean'

  db:
    image: mysql:8.0-oracle
    environment:
      MYSQL_DATABASE: db_development
      MYSQL_ROOT_PASSWORD: passwd
      TZ: 'Asia/Tokyo'
    command: mysqld --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci --innodb_use_native_aio=0
    ports:
      - '3306:3306'
    expose:
      - '3306'

  swagger-ui:
    image: pentusha/swagger-ui-crossbuild
    volumes:
      - ./doc:/usr/share/nginx/html/doc
    environment:
      API_URL: doc/openapi.yaml
    ports:
      - "9001:8080"

  redoc:
    image: redocly/redoc
    ports:
      - "9002:80"
    volumes:
      - ./doc/openapi.yaml:/usr/share/nginx/html/swagger.yaml
    environment:
      - SPEC_URL=swagger.yaml