在 docker-compose 中正确使用 mysql 命令？

Question

我正在尝试学习 docker-compose。 我在通过 docker compose 运行 mysql 命令时遇到问题。

这是我的 docker-compose 文件：

version: '3'

services:
  mysql:
    image: mysql
    container_name: mysql
    restart: always
    env_file: .env
    environment:
      - MYSQL_ROOT_PASSWORD=$MYSQL_ROOT_PASS
      - MYSQL_USER=$MYSQL_USER
      - MYSQL_PASSWORD=$MYSQL_PASS
      - MYSQL_DB=$MYSQL_DB
    volumes:
      - db-data:/var/lib/mysql
    command: >
      mysql -e "CREATE DATABASE \${MYSQL_DB}"
      && mysql -e "GRANT ALL PRIVILEGES ON \${MYSQL_DB}.* TO '\${MYSQL_USER}'@'%'"
      && mysql -e "DELETE FROM mysql.user WHERE User='root' AND Host NOT IN ('localhost', '127.0.0.1', '::1');"
    ports:
      - $MYSQL_PORT:3306

volumes:
  db-data:

但是当我运行docker-compose up --force-recreate --build ，我得到了 mysql 使用指南输出：

Attaching to mysql
mysql    | mysql  Ver 8.0.25 for Linux on x86_64 (MySQL Community Server - GPL)
mysql    | Copyright (c) 2000, 2021, Oracle and/or its affiliates.
mysql    |
mysql    | Oracle is a registered trademark of Oracle Corporation and/or its
mysql    | affiliates. Other names may be trademarks of their respective
mysql    | owners.
mysql    |
mysql    | Usage: mysql [OPTIONS] [database]
mysql    |   -?, --help          Display this help and exit.
mysql    |   -I, --help          Synonym for -?
mysql    |   --auto-rehash       Enable automatic rehashing. One doesn't need to use
mysql    |                       'rehash' to get table and field completion, but startup
...etc...

我是否使用command:正确发送 mysql 命令？

Answer 1

我想建议一种不同的 MySQL 方法：

您可以挂载另一个将在开头运行的 SQL 脚本文件：

version: '3'

services:
  mysql:
    image: mysql
    container_name: mysql
    restart: always
    env_file: .env
    environment:
      - MYSQL_ROOT_PASSWORD=$MYSQL_ROOT_PASS
      - MYSQL_USER=$MYSQL_USER
      - MYSQL_PASSWORD=$MYSQL_PASS
      - MYSQL_DB=$MYSQL_DB
    volumes:
      - db-data:/var/lib/mysql
      - ./init.sql:/docker-entrypoint-initdb.d/init.sql
    ports:
      - $MYSQL_PORT:3306

volumes:
  db-data:

现在在您docker-compose.yml目录中创建init.sql ：

CREATE DATABASE ${MYSQL_DB}
GRANT ALL PRIVILEGES ON ...

您可以在Initializing a fresh instance 中看到它。