如何将 MySQL 转储从主机恢复到 Docker 容器

2022-01-24 00:00:00 docker containers dump mysql restore

我确定这是一个重复的主题，但我根本无法完成:我喜欢在运行时将我的数据库转储恢复到 MySQL 容器，而不修改 docker-compose.yml文件.

I'm sure this is a duplicated topic, but I simply cannot get it done: I like to restore my database dump to MySQL container in run time, without modifying the docker-compose.yml file.

Dockerfile

FROM php:5.4.45-apache
RUN apt-get update
RUN docker-php-ext-install mysql mysqli

docker-compose.yml

version: '2'
services:
  php_service:
    container_name: my_php
    # Use Dockerfile in this dir to build the image
    build: .
    # Stop containers always after exiting.
    restart: always
    ports:
      # 'localhost' does not works from the host, but the IP of docker itself
      # (192.168.99.100 for example - shown on the top of the console)
      - "80:80"
      - "443:443"
    environment:
      # Pass variables
      - API_TOKEN=xxxx
    volumes:
      # The current directory will be mounted to '/var/www/html'
      # WORKS ONLY IN USER'S DIR ON WINDOWS (~/Downloads for example)
      - .:/var/www/html
  # See https://hub.docker.com/_/mysql/ for additional information.
  # To open up console, run `docker exec -it my_mysql bash`.
  # To restore a dump `docker exec -i my_mysql /usr/bin/mysql -u root
  # --password=test_pass DATABASE < DUMP.sql` should work, but it never did.
  mysql_service:
    container_name: my_mysql
    # Use an existing image
    image: mysql:5.6
    restart: always
    ports:
      # Let it accessible for other apps (mysql on host, IDE, etc.)
      - "3306:3306"
    environment:
      MYSQL_ROOT_PASSWORD: 'test_pass' # TODO: Change this
      MYSQL_USER: 'test'
      MYSQL_PASS: 'pass'
    volumes:
      # Named volumes (my-datavolume) has to be listed in the "volumes"
      # section - I don't know how it works or what is it doing at all...
      # (-_-')
      - my-datavolume:/var/lib/mysql
volumes:
  my-datavolume:

重现步骤:

  • 在 Windows 7 主机上启动 Docker Toolbox
  • docker-compose up
  • 打开一个新的 Docker Toolbox 终端
  • docker exec my_msql/usr/bin/mysql -u root --password=test_pass -e 'CREATE DATABASE testdb;'
  • docker exec -i my_mysql/usr/bin/mysql -u root --password=test_pass testdb
  • docker exec -it my_mysql/usr/bin/mysql -u root --password=test_pass testdb
  • mysql>显示表格；

数据库为空.似乎它什么也没做，因为终端响应太快了.我通过在我的主机上安装 MySQL 尝试了转储，它可以恢复.

The database is empty. It seems that it does nothing, because the terminal responds too quickly. I tried out the dump by installing MySQL on my host, it can be restored.

推荐答案

试试下面的命令对我来说很好.

Try below command works fine for me.

从 docker 主机运行它.

Run it from docker host machine.

备份

docker exec 容器/usr/bin/mysqldump -u root --password=root数据库 >备份.sql

docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql

恢复
猫备份.sql |docker exec -i CONTAINER/usr/bin/mysql -u root--password=root 数据库

Restore
cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE

如有任何问题，请告诉我.

Please let me know in case any issue.

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