如何在 docker-compose.yml 中运行 wp cli [英] How to run wp cli in docker-compose.yml
问题描述
刚从 docker 开始
Just starting in docker here
所以我在我的 docker-compose.yml
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 core install,这样我就不必经历手动设置我的测试 wordpress 网站的过程.
So I wanted to run the wp core install so that I won't have to go through the process of manually setting up my test wordpress site.
但是,当我运行 docker-compose up 时,这似乎不起作用,我在控制台上收到此错误
However when I run docker-compose up, this does not seem to work, I got this error on the console
我在这里缺少什么?任何人都可以帮助我实现自动设置 wordpress 安装的目标吗?
What am I missing here? Anyone can help me accomplish my goal of automating the of setting up wordpress install?
提前致谢
推荐答案
这里有几个问题.第一个是这两个容器(wordpress
和 wordpress-cli
)不共享一个卷.因此,虽然 wordpress
已准备好安装 wordpress,但 wordpress-cli
却没有.
Well there are a couple of problems. The first one is that those two containers (wordpress
and wordpress-cli
) don't share a volume. So while wordpress
has a wordpress installation ready, the wordpress-cli
doesn't.
因此您可以将卷添加到两个容器中,然后 wordpress-cli
将找到 wordpress 安装.
So you can add volumes to both containers, and then wordpress-cli
will find the wordpress installation.
还有第二个问题:wordpress:latest
和 wordpress:cli
图像都与用户 www-data
一起运行,但是问题是各个 www-data
用户有不同的用户 ID:
Then there's a second problem: the wordpress:latest
and wordpress:cli
images both run with the user www-data
, but the problem is that the individual www-data
users have different user-id's:
$ 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
似乎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.我通过使用用户 xfs
运行 wordpress:cli
解决了这个问题,用户 ID 也为 33.
It seems they aren't exactly compatible here. So if you use a shared volume you have to make sure they both use the same user-id. I solved this by having the wordpress:cli
run with the user xfs
which also has the user id 33.
最后一个问题是你的容器相互依赖.Wordpress 需要一个正在运行的 MySQL 实例,并且 wordpress-cli 还需要准备好 MySQL 和 Wordpress.为了确保 MySQL 已准备好安装 wordpress cli,您可以使用 "wait-for-it" 或者在一个简单的情况下,您可以等待几秒钟然后尝试.
The last problem is that your containers have dependencies on each other. Wordpress needs a running MySQL instance and the wordpress-cli needs also the MySQL and the Wordpress to be ready. To make sure MySQL is ready for the wordpress cli installation you either use something like "wait-for-it" or in a simple case you can just wait a couple of seconds and then try it.
我已经测试了所有这些更改并提出了以下 docker-compose.yml
.我已经用vstm"注释了我所做的所有更改:
I have tested all those changes and came up with the following docker-compose.yml
. I have annotated all the changes I've made with "vstm":
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.取决于您计划如何使用 docker-compose.
It uses a docker-volume but you can also map it to a filesystem. Depends on how you plan to use your docker-compose.
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