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This time, the editor wants to share with you how to use Docker Swarm to build Wordpress. The article is rich in content. Interested friends can learn about it. I hope you can get something after reading this article.

cause

I used to build wordpress on Vultr, but for well-known reasons, access to this place is getting slower and slower. Later, I chose Xinlangyun. Xinlangyun is indeed cheap and good, but it is necessary to put it on record and the comment function is estimated to be castrated. Just think about it and find a host in Hong Kong to build wordpress.

Purchase the mainframe

What I choose here is Aliyun's lightweight application server. The advantage of this host is that it is cheap and sufficient.

For example, the host I choose in Hong Kong costs only 24 yuan a month, one core and one gigabyte of memory, the network speed is 30Mbps, disk space 25GB, and monthly traffic 1TB.

The configuration is as shown below

Initialize the docker environment

Although there is a feature to install wordpress, I don't recommend it because the configuration is too old.

In the end, I chose the ubuntu18.04 system. I can install docker and initialize docker swarm directly with the following command.

Curl-o-L https://gist.githubusercontent.com/hangox/e679464f35dc2a78920e6249a21d7958/raw/c5541e38979dca1e3e1e9704ad171ed2f0556fa1/ubunut-install-docker.sh | bash

Write docker-compose

Configuration list

Version: '3.7'services: caddy: image: abiosoft/caddy ports:-80:80-443 image environment:-ACME_AGREE=true-TZ=Asia/Shanghai volumes:-caddy:/root/.caddy-wp-src:/usr/src/wordpress configs:-source: wp_caddy target: / etc/Caddyfile app: image: wordpress:5.4.1-php7.2-fpm environment: TZ: Asia/Shanghai WORDPRESS_DB_HOST: wp _ db:3306 WORDPRESS_DB_USER: root WORDPRESS_DB_PASSWORD: yourpassword WORDPRESS_DB_NAME: wordpress depends_on:-db volumes:-wordpress:/var/www/html-wp-src:/usr/src/wordpress db: image: mysql:8 environment: TZ: Asia/Shanghai MYSQL_ROOT_PASSWORD: yourpassword MYSQL_DATABASE: wordpress command:-- default-authentication-plugin=mysql_native_password volumes:-db:/var/lib/mysqlvolumes: wordpress : db: caddy: wp-src:configs: wp_caddy: external: true

Configuration parsing

Caddy

Used as a reverse proxy, while taking into account the https certificate application, the configuration is as follows

Https://47log.com https://www.47log.com {root / usr/src/wordpress gzip fastcgi / wp_app:9000 php rewrite {if {path} not_match ^ / wp-admin to {path} {path} / / index.php?_url= {uri}} log stdout errors stderr}

Here I use the config feature of docker swarm to write the configuration directly to the wp_caddy configuration.

Db

Mysql8 is used here, wordpress is supported, and the performance is better.

It should be noted that commmand must add command:-- default-authentication-plugin=mysql_native_password or there is no way to authenticate the password. I just forgot to add this egg and it hurt for a while.

App

Pay attention to the connection mode

If you are deploying with docker stack, what name is deployed, the database connection should be prefixed with the name. For example, here is docker stack deploy-c docker-compose.yml wp, and the host of my database in the docker network is wp_db. If your stack name is wordpress, change it to wordpress_db.

Pay attention to configuring volume

-wordpress:/var/www/html this thing must be configured, last time I did not configure this thing, delete container, the theme is directly gone.

Deploy using docker stack

One-line command docker stack deploy-c docker-compose.yml wp will be able to enter wordpress after a while

Why use docker swarm. Because of portainer, docker-swarm can be configured with full function after it is connected to portainer.

After reading this article on how to use Docker Swarm to build Wordpress, if you think the article is well written, you can share it with more people.

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