version: '3.8' services: web: build: . # command: bundle exec puma -p 4567 -b 0.0.0.0 volumes: - .:/app ports: - "4567:4567" environment: - RACK_ENV=development depends_on: - db db: image: mysql:8.0 environment: MYSQL_ROOT_PASSWORD: mypassword MYSQL_DATABASE: dashboard_development ports: - "3306:3306" volumes: - db_data:/var/lib/mysql volumes: db_data: