Install WordPress Using Docker

 

In this blog, we are going to configure WordPress using Docker in a containerized environment. We will use Docker and Docker Compose to set up WordPress along with Nginx, PHP, and a MySQL database. By the end of this guide, you will have a fully functional WordPress site running inside Docker containers.

Step 1: Install Docker and Docker Compose

• sudo apt update && sudo apt install -y docker.io
• sudo systemctl enable --now docker
• sudo usermod -aG docker $USER
• sudo apt  install docker-compose -y

Step 2: Download WordPress and Configure Database Credentials

• Via Web Browser: https://wordpress.org/download/
• Via Command Line: wget https://wordpress.org/latest.zip

Step 3: Create Docker Configuration Files for WordPress

a) docker-compose.yml – to define and manage services

version: '3.9'

services:

  nginx:

    image: nginx:stable-alpine

    ports:

      - 80:80

    volumes:

      - ./nginx/default.conf:/etc/nginx/conf.d/default.conf

      - ./wordpress:/var/www/html/:delegated

    depends_on:

      - php

      - mysql

   

  mysql:

    image: mysql:latest

    environment:

      MYSQL_ROOT_PASSWORD: secret

      MYSQL_DATABASE: wp

      MYSQL_USER: wp

      MYSQL_PASSWORD: secret

    volumes:

      - mysql_data_vol:/var/lib/mysql

  php:

    build:

      context: .

      dockerfile: php.dockerfile

    volumes:

      - ./wordpress:/var/www/html/:delegated

volumes:

  mysql_data_vol:

 

b) php.dockerfile – to build the PHP environment

FROM php:8.2-fpm

RUN docker-php-ext-install mysqli

RUN docker-php-ext-install pdo

RUN docker-php-ext-install pdo_mysql

RUN docker-php-ext-enable pdo_mysql

c) nginx/default.conf – to configure the Nginx web server

upstream php {

    server unix:/tmp/php-cgi.socket;

    server php:9000;

}

server {

        listen 80;

        server_name wordpress-docker.test;

        root /var/www/html;

        index index.php index.html;

        location / {

                try_files $uri $uri/ /index.php?$args;

        }

        location ~ \.php$ {

            include fastcgi.conf;

            fastcgi_intercept_errors on;

            fastcgi_pass php;

        }  

}

Step 4: Inside the WordPress directory, copy the wp-config-sample.php file to wp-config.php and update the MySQL database credentials accordingly.

Step 5: Run the Docker Containers

• docker-compose config
• docker-compose up

Step 6: Complete WordPress Setup via Web Browser

http://server-ip/

Step 7: Clean Up the Installation

• docker ps -a
• docker stop container-id
• docker rm container-id
• docker rmi image-id