WordPress is one of the most popular content management software (CMS) due to its multitude of features and ease of use. However, setting up a new web host environment can be time-consuming especially if you need to do it often. Simplifying the installation process to a few fast\u00a0commands greatly reduces the time and effort required, this is where Docker comes in. Installing WordPress with Docker<\/a> is a breeze, read ahead to find out more.<\/p>\n\n\n\n Docker is a container platform that allows simple and fast software installations on any system and OS. It wraps the piece of software in a complete file system that includes everything it needs to run such as code, runtime, system tools and libraries. This allows anyone to package an application with its dependencies into a standardized building block.<\/p>\n\n\n\n Installing Docker itself is already easy. Firstly run the usual update command for your system to make sure you have the latest source lists.<\/p>\n\n\n\n Check that you have the curl command line utility.<\/p>\n\n\n\n It comes preinstalled with most Linux distributions, but if it can not be found, install it manually with the appropriate command for your OS.<\/p>\n\n\n\n Use the command below to download and install Docker. The process requires root privileges so you will be asked for your sudo<\/em> password on any non-root user.<\/p>\n\n\n\n Towards the end of the installation process, you will see a suggestion to add your username to the Docker users group. Doing this allows you to run Docker commands without needing to invoke sudo<\/em> every time.<\/p>\n\n\n\n Log out and back in again after adding yourself to the Docker users group before continuing.<\/p>\n\n\n\n You can check that the installation was successful with the following test program:<\/p>\n\n\n\n You should see an output similar to the example below.<\/p>\n\n\n\n If the command does not work immediately, restart the Docker service with the following and try to run the hello-world app again.<\/p>\n\n\n\n Docker should now be installed and working correctly. Continue on below with the rest of the WordPress setup.<\/p>\n\n\n\n Before installing WordPress with Docker you will need to have somewhere to store the data. MariaDB\u00a0is a community-developed relational\u00a0database management system and a drop-in replacement for MySQL. It is officially available on Docker<\/a> and provides easy instructions with up-to-date images.<\/p>\n\n\n\n Start off by making a new directory where you wish to store the files for WordPress and MariaDB for example in your home directory.<\/p>\n\n\n\n Downloading and installing a new MariaDB container can all be performed with a single command. Before jumping in check the required parameters.<\/p>\n\n\n\n MariaDB Environment variables are marked in the Docker command with -e:<\/em><\/p>\n\n\n\n Docker parameters:<\/p>\n\n\n\n Then run the command below while replacing the <password> with your own.<\/p>\n\n\n\n If Docker was successful at creating the container, you should see a code at the end of the output similar to the example above. You can confirm that the MariaDB container is running by using the following command:<\/p>\n\n\n\n Check the status for your MariaDB install, it should show \u201cUp\u201d and the time it has been running like in the example output below.<\/p>\n\n\n\n Other useful commands for working with containers are \u2018start\u2019, \u2018stop\u2019 and \u2018remove\u2019.<\/p>\n\n\n\n You can find out more about available commands and options for specific commands.<\/p>\n\n\n\n Full command-line documentation is also available over at the Docker support page<\/a>.<\/p>\n\n\n\n Applications in containers run isolated from one another in the userspace of the host operating system sharing the kernel with other containers. This reduces the overhead required to run packaged software while also enabling the containers to run on any kind of infrastructure. To allow applications within different containers to work with one another Docker supports container linking.<\/p>\n\n\n\n WordPress is also made officially available on Docker Hub<\/a>, pull the image using the command below. When the version to download is not specified Docker will fetch the latest available.<\/p>\n\n\n\n WordPress container also takes environment variables and Docker parameters:<\/p>\n\n\n\n Run the command below while replacing the <password> as you did for the MariaDB container.<\/p>\n\n\n\n Then open your server\u2019s domain name or IP address in a web browser to test the installation. You should be redirected to the initial WordPress setup page at http:\/\/<public IP>\/wp-admin\/install.php. Go through the setup wizard and you are done.<\/p>\n\n\n\n If you get an error linking your server\u2019s public IP address to the WordPress container\u2019s internal address, remove the failed container using the following command:<\/p>\n\n\n\n Restart Docker and the database container, and also make sure no other service is already bound to port 80.<\/p>\n\n\n\n Then try creating the WordPress container again.<\/p>\n\n\n\n Congratulations, you should now have a simple WordPress with Docker running in a container and an easy way to configure another one if needed. Before continuing on building your new WordPress site, make sure to pay attention to the security on your server. To find out more, check out our article How To Secure Your Linux Cloud Server<\/a>.<\/p>\n","protected":false},"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","community-category":[125,126],"class_list":["post-24598","tutorial","type-tutorial","status-publish","hentry","community-category-docker","community-category-wordpress"],"acf":[],"_links":{"self":[{"href":"https:\/\/studiogo.tech\/upcloudold\/wp-json\/wp\/v2\/tutorial\/24598","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/studiogo.tech\/upcloudold\/wp-json\/wp\/v2\/tutorial"}],"about":[{"href":"https:\/\/studiogo.tech\/upcloudold\/wp-json\/wp\/v2\/types\/tutorial"}],"replies":[{"embeddable":true,"href":"https:\/\/studiogo.tech\/upcloudold\/wp-json\/wp\/v2\/comments?post=24598"}],"wp:attachment":[{"href":"https:\/\/studiogo.tech\/upcloudold\/wp-json\/wp\/v2\/media?parent=24598"}],"wp:term":[{"taxonomy":"community-category","embeddable":true,"href":"https:\/\/studiogo.tech\/upcloudold\/wp-json\/wp\/v2\/community-category?post=24598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"WordPress](\"https:\/\/upcloud.com\/media\/wordpress-docker-white.png\")
<\/figure>\n\n\n\nInstall Docker<\/h2>\n\n\n\n
# Debian and Ubuntu\nsudo apt-get update\n# CentOS\nsudo yum update<\/pre>\n\n\n\n
curl -V<\/pre>\n\n\n\n
# Debian and Ubuntu\nsudo apt-get install curl\n# CentOS\nsudo yum install curl<\/pre>\n\n\n\n
curl -fsSL https:\/\/get.docker.com\/ | sh<\/pre>\n\n\n\n
sudo usermod -aG docker <username><\/pre>\n\n\n\n
docker run hello-world<\/pre>\n\n\n\n
Unable to find image 'hello-world:latest' locally\nlatest: Pulling from library\/hello-world\n...\nHello from Docker.\nThis message shows that your installation appears to be working correctly.\n...<\/pre>\n\n\n\n
sudo systemctl restart docker<\/pre>\n\n\n\n
MariaDB in a container<\/h2>\n\n\n\n
mkdir ~\/wordpress && cd ~\/wordpress<\/pre>\n\n\n\n
\n
\n
docker run -e MYSQL_ROOT_PASSWORD=<password> -e MYSQL_DATABASE=wordpress --name wordpressdb -v \"$PWD\/database\":\/var\/lib\/mysql -d mariadb:latest<\/pre>\n\n\n\n
...\nStatus: Downloaded newer image for mariadb:latest\n23df0ec2e48beb1fb8704ba612e9eb083f4193ecceb11102bc91232955cccc54<\/pre>\n\n\n\n
docker ps<\/pre>\n\n\n\n
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES\n14649c5b7e9a mariadb:latest \"\/docker-entrypoint.s\" 12 seconds ago Up 12 seconds 3306\/tcp wordpressdb<\/pre>\n\n\n\n
docker start <container name>\ndocker stop <container name>\ndocker rm <container name><\/pre>\n\n\n\n
docker --help\ndocker <command> --help<\/pre>\n\n\n\n
WordPress with Docker<\/h2>\n\n\n\n
docker pull wordpress<\/pre>\n\n\n\n
\n
docker run -e WORDPRESS_DB_USER=root -e WORDPRESS_DB_PASSWORD=<password> --name wordpress --link wordpressdb:mysql -p 80:80 -v \"$PWD\/html\":\/var\/www\/html -d wordpress<\/pre>\n\n\n\n
![\"WordPress](\"https:\/\/upcloud.com\/media\/wordpress-setup.png\")
<\/figure>\n\n\n\ndocker rm wordpress<\/pre>\n\n\n\n
sudo systemctl restart docker\ndocker start wordpressdb<\/pre>\n\n\n\n
Conclusions<\/h2>\n\n\n\n