如何在docker-compose.yml中运行wp cli

Question

刚开始在这里的码头工人

所以我在docker-compose.yml中得到了这个

version: '3.3'

services:
  db:
    image: mysql:5.7
    volumes:
      - db_data:/var/lib/mysql
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: somewordpress
      MYSQL_DATABASE: wordpress
      MYSQL_USER: wordpress
      MYSQL_PASSWORD: wordpress

  wordpress:
    depends_on:
      - db
    image: wordpress:latest
    ports:
      - 8000:80
    restart: always
    environment:
      WORDPRESS_DB_HOST: db:3306
      WORDPRESS_DB_NAME: wordpress
      WORDPRESS_DB_USER: wordpress
      WORDPRESS_DB_PASSWORD: wordpress
      WORDPRESS_TABLE_PREFIX: "wp_"
      WORDPRESS_DEBUG: 1

  wordpress-cli:
    depends_on:
      - db
      - wordpress
    image: wordpress:cli
    command: wp core install --path="/var/www/html" --url=localhost --title="Local Wordpress By Docker" --admin_user=admin --admin_password=secret --admin_email=foo@bar.com

volumes:
  db_data:

所以我想运行wp核心安装,以便我不必经历手动设置我的测试wordpress站点的过程.

但是当我运行docker-compose时,这似乎不起作用,我在控制台上遇到了这个错误

我在这里错过了什么？任何人都可以帮助我实现自动设置wordpress安装的目标吗？

提前致谢

Answer 1

那么有几个问题.第一个是这两个容器(wordpress和wordpress-cli)不共享卷.因此,虽然wordpress已准备好wordpress安装,但wordpress-cli事实并非如此.

因此,您可以向两个容器添加卷,然后wordpress-cli将找到wordpress安装.

然后是第二个问题:wordpress:latest和wordpress:cli图像都与用户一起运行www-data,但问题是各个www-data用户具有不同的用户ID:

$ docker run --rm wordpress:latest grep www-data /etc/passwd 
www-data:x:33:33:www-data:/var/www:/usr/sbin/nologin
$ docker run --rm wordpress:cli grep www-data /etc/passwd   
www-data:x:82:82:Linux User,,,:/home/www-data:/bin/false

看来它们在这里并不完全兼容.因此,如果您使用共享卷,则必须确保它们都使用相同的用户ID.我通过wordpress:cli与xfs具有用户ID 33的用户一起运行来解决这个问题.

最后一个问题是您的容器彼此依赖.Wordpress需要一个正在运行的MySQL实例,而wordpress-cli也需要MySQL和Wordpress准备就绪.为了确保MySQL已准备好进行wordpress cli安装,您可以使用类似"等待它"的东西,或者在简单的情况下,您可以等待几秒钟然后尝试它.

我测试了所有这些变化,并提出了以下建议docker-compose.yml.我已经注释了我用"vstm"所做的所有更改:

version: "3.3"
services:
  db:
    image: mysql:5.7
    volumes:
      - db_data:/var/lib/mysql
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: somewordpress
      MYSQL_DATABASE: wordpress
      MYSQL_USER: wordpress
      MYSQL_PASSWORD: wordpress

  wordpress:
    depends_on:
      - db
    image: wordpress:latest
    ports:
      - 8000:80
    restart: always
    environment:
      WORDPRESS_DB_HOST: db:3306
      WORDPRESS_DB_NAME: wordpress
      WORDPRESS_DB_USER: wordpress
      WORDPRESS_DB_PASSWORD: wordpress
      WORDPRESS_TABLE_PREFIX: "wp_"
      WORDPRESS_DEBUG: 1
    # vstm: add shared volume
    volumes:
      - wp_data:/var/www/html

  wordpress-cli:
    depends_on:
      - db
      - wordpress
    image: wordpress:cli
    # vstm: This is required to run wordpress-cli with the same
    # user-id as wordpress. This way there are no permission problems
    # when running the cli
    user: xfs
    # vstm: The sleep 10 is required so that the command is run after
    # mysql is initialized. Depending on your machine this might take
    # longer or it can go faster.
    command: >
      /bin/sh -c '
      sleep 10;
      wp core install --path="/var/www/html" --url="http://localhost:8000" --title="Local Wordpress By Docker" --admin_user=admin --admin_password=secret --admin_email=foo@bar.com
      '
    # vstm: add shared volume
    volumes:
      - wp_data:/var/www/html

volumes:
  db_data:
  # vstm: add shared volume
  wp_data:

它使用docker-volume,但您也可以将其映射到文件系统.取决于您打算如何使用docker-compose.

Answer 2

这对我有用：

  wpcli:
    depends_on: 
      - mysql
      - wordpress
    image: wordpress:cli
    links:
      - mysql:db
    entrypoint: wp
    command: "--info"
    container_name: ${COMPOSE_PROJECT_NAME}_wpcli
    volumes:
      - ${WORDPRESS_DATA_DIR:-./wordpress}:/var/www/html
    working_dir: /var/www/html

请注意该行中：

links:
  - mysql:db

mysql = 我的服务名称 db = 我给它的别名，可以是任何名称

然后你像这样发出 run wp ：

docker-compose run --rm wpcli WORDPRESS_COMMAND

来源：https ://medium.com/@tatemz/using-wp-cli-with-docker-21b0ab9fab79

Answer 3

这是我在Stack Overflow上的第一个回答：">

事实上，你的问题启发了我，@ vstm的回答给了我一些指导。

你可以试试我的一段代码：

1.等待mysql.sh

#!/bin/bash -e

HOST=$(echo $WORDPRESS_DB_HOST | cut -d: -f1)
PORT=$(echo $WORDPRESS_DB_HOST | cut -d: -f2)

CMD=$@

until mysql -h $HOST -P $PORT -D $WORDPRESS_DB_NAME -u $WORDPRESS_DB_USER -p$WORDPRESS_DB_PASSWORD -e '\q'; do
  >&2 echo "Mysql is unavailable - sleeping..."
  sleep 2
done

>&2 echo "Mysql is up - executing command"
exec $CMD

2.compose.yml

version: '3.9'

services:

  wordpress:
    image: wordpress:5.7.0-php7.4-apache
    ports:
      - "80:80"
    volumes:
      - ./wp-data/:/var/www/html/
    networks:
      wp-net: {}

  wp-cli:
    image: wordpress:cli-2.4.0-php7.4
    depends_on:
      - wordpress
    volumes:
      - ./wait-for-mysql.sh:/wait-for-mysql.sh
      - ./wp-data:/var/www/html/ # shared with wordpress service
    user: "33"
    command: >
      /wait-for-mysql.sh
      wp core install
      --path="/var/www/html"
      --url="http://your-url-here"
      --title=your-title-here
      --admin_user=your-user-here
      --admin_password=your-password-here
      --admin_email=your-email-here}
      --skip-email
    networks:
      wp-net: {}

networks:
  wp-net: {}

供你参考：

• https://docs.docker.com/compose/startup-order/
• https://gitlab.com/hino-hatake/wordpress