Wordpress Docker Install

What is Wordpress?

WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database

Installation Guide based on HowtoForge's Guide

Assumption for setup include a stable internet connection and an already existing Debian based distribution (Ubuntu 20.04 for me) to setup the PI-Hole

1. First update the Linux distro and install docker
   • The commands to execute this are as follows:

   sudo apt-get update
   sudo apt upgrade
   curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
   echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" |  sudo   tee /etc/apt/sources.list.d/docker.list > /dev/null
   sudo apt update
   sudo apt install docker-ce docker-ce-cli containerd.io
   sudo usermod -aG docker [user]
   sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
   sudo chmod +x /usr/local/bin/docker-compose
   

2. Next we'll need to start docker
   • Issue the command sudo systemctl start docker

Install with Docker-Compose

1. First create a directory for wordpress, I used mkdir ~/wordpress
2. Create a yml file within that directory called docker-compose.yml
3. Edit the yml file just created to contain the following information

   version: "3.9"
   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
       volumes:
         - wordpress_data:/var/www/html
       ports:
         - "8000:80"
       restart: always
       environment:
         WORDPRESS_DB_HOST: db:3306
         WORDPRESS_DB_USER: wordpress
         WORDPRESS_DB_PASSWORD: wordpress
         WORDPRESS_DB_NAME: wordpress
   volumes:
      db_data: {}
      wordpress_data: {}
   

4. Run sudo docker-compose up -d
   • This builds and deploys the container you've edited
5. Within a web bowser search either http://localhost:8000 or enter https://[IP]:8000
   • Once issued it will take you to an installation site from your docker to install WordPress and will request you fill out your information and submit
   • Once submitted login, it should now take you to your WordPress installation with your user information looking as such
   • User installed should look like this in addition
   • After this you have completed the docker installation for WordPress

Install Without Docker Compose

1. Setup database container, specifically MariaDB
   • To install the container issue the command sudo docker pull mariadb
   • Next begin creating directories for data storage as such

   mkdir ~/wordpress
   mkdir -p ~/wordpress/database
   mkdir -p ~/wordpress/html
   

   • Issue the command to create a new container for MariaDB

   sudo docker run -e MYSQL_ROOT_PASSWORD=password -e MYSQL_USER=mysqluser -e MYSQL_PASSWORD=mysqlpass -e MYSQL_DATABASE=wordpress_db -v /root/wordpress/database:/var/lib/mysql --name wordpressdb -d mariadb
   

   • Note that you can change the passwords and user to whatever is desired on your end, I did this as an example
   • You can then inspect the container with the command sudo docker inspect -f '{{ .NetworkSettings.IPAddress }}' wordpressdb
   • To log in to check databased issue the commands

   sudo mysql -u mysqluser -h 172.17.0.2 -p 
   show databases;
   Exit;
   

   • The result should look as such
2. Begin WordPress container setup
   • Fetch the docker install for WordPress with the command sudo docker pull wordpress:latest
   • Create a wpcontainer with the following command

   docker run -e WORDPRESS_DB_USER=wpuser -e WORDPRESS_DB_PASSWORD=pass -e WORDPRESS_DB_NAME=wordpress_db -p 8081:80 -v /root/wordpress/html:/var/www/html --link wordpressdb:mysql --name wpcontainer -d wordpress
   

   • Again, note that the user, password, and DB_Name can be changed in addition with the name of the container
   • Find you IP using the command ip addr show
   • With that IP found issue the command curl -I [IP]:8081 to check the state of the WordPress container
   • The result should look like
3. Final Installation
   • Issue the command curl -I [IP]:8081 once more
   • Once issued it will take you to an installation site from your docker to install WordPress and will request you fill out your information and submit
   • Once submitted login, it should now take you to your WordPress installation with your user information looking as such
   • User installed should look like this in addition
   • After this you have completed the docker installation for WordPress