version: '3.8' services: db: image: mysql:5.7 command: --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci restart: always environment: TZ: Asia/Shanghai MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PASSWORD} MYSQL_DATABASE: ${MYSQL_DATABASE} MYSQL_USER: ${MYSQL_USER} MYSQL_PASSWORD: ${MYSQL_PASSWORD} ports: - "3306:3306"