Running WordPress Containerized in Docker

What is WordPress?

WordPress is open source software you can use to create a beautiful website, blog, or app. -https://wordpress.org/

Installing Docker

1. Log into the Linux based device
2. Run the following commands in the terminal
   # install prerequisites
   sudo apt install apt-transport-https ca-certificates curl software-properties-common gnupg-agent -y
   # add docker gpg key
   curl -fsSL https://download.docker.com/linux/$(awk -F'=' '/^ID=/{ print $NF }' /etc/os-release)/gpg | sudo apt-key add -
   # add docker software repository
   sudo add-apt-repository "deb [arch=$(dpkg --print-architecture)] https://download.docker.com/linux/$(awk -F'=' '/^ID=/{ print $NF }' /etc/os-release) $(lsb_release -cs) stable"
   # install docker
   sudo apt install docker-ce docker-compose containerd.io -y
   # enable and start docker service
   sudo systemctl enable docker && sudo systemctl start docker
   # add the current user to the docker group
   sudo usermod -aG docker $USER
   # reauthenticate for the new group membership to take effect
   su - $USER

Running the WordPress Container

1. Now that Docker is installed, run the following commands to setup the WordPress Docker container and run it
   # create working directories
   mkdir ~/docker/wordpress -p && mkdir ~/docker/mariadb -p
   # set ownership on the working directories
   sudo chown "$USER":"$USER" ~/docker -R
   # create containers network
   docker network create containers
   # run the mariadb docker container
   docker run -d --name mariadb -e MYSQL_ROOT_PASSWORD=r00tp@$$ -e MYSQL_USER=wordpress_rw -e MYSQL_PASSWORD='W0rdPr3ss!!' -e MYSQL_DATABASE=wordpress -v ~/docker/mariadb:/var/lib/mysql --network containers --restart unless-stopped mariadb
   # run the wordpress docker container
   docker run -d --name=wordpress -p 8880:80 -e WORDPRESS_DB_HOST=mariadb -e WORDPRESS_DB_USER=wordpress_rw -e WORDPRESS_DB_PASSWORD='W0rdPr3ss!!' -e WORDPRESS_DB_NAME=wordpress -v ~/docker/wordpress:/var/www/html --network containers --restart unless-stopped wordpress
2. Open a web browser and navigate to http://DNSorIP:8880
3. The WordPress setup screen should be displayed
4. Select a language > Click Continue
5. Create a site title and WordPress login > Click Install WordPress
6. When the installation completes, login with the WordPress credentials created in the previous step
7. Welcome to WordPress running as a Docker container

Documentation: https://hub.docker.com/_/wordpress