How to run wp cli in docker-compose.yml - wordpress

Question

Just starting in docker here
So I got this in my 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:
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.
However when I run docker-compose up, this does not seem to work, I got this error on the console
What am I missing here? Anyone can help me accomplish my goal of automating the of setting up wordpress install?
Thanks in advance

Answer 1

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.
So you can add volumes to both containers, and then wordpress-cli will find the wordpress installation.
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
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.
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.
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:
It uses a docker-volume but you can also map it to a filesystem. Depends on how you plan to use your docker-compose.

Answer 2

This one worked for me:
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
Note that in the line:
links:
- mysql:db
mysql = name of my service
db = alias name I gave it, can be anything
Then you issue run wp like so:
docker-compose run --rm wpcli WORDPRESS_COMMAND
Source: https://medium.com/#tatemz/using-wp-cli-with-docker-21b0ab9fab79

Answer 3

this's my first answer at Stack Overflow :">
Actually, your question inspired me, and #vstm's answer guided me a bit.
You could try my piece of code:
1.wait-for-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: {}
For your reference:
https://docs.docker.com/compose/startup-order/
https://gitlab.com/hino-hatake/wordpress