How to Install WordPress with Docker on a VPS (Step-by-Step)

Deploying WordPress with Docker on a VPS is one of the most efficient ways to run a flexible, isolated, and easily manageable WordPress site. Whether you're a developer looking to streamline your workflow or a site owner wanting to keep your environment portable and consistent, learning how to install WordPress with Docker on a VPS will save you time and effort. By leveraging containerization, you eliminate the "it works on my machine" problem and ensure your production environment mirrors your development setup perfectly.

In this guide, you'll learn exactly how to set up a Docker WordPress setup step by step — covering different systems like Linux and Windows VPS, explaining how to use Docker Compose, how to configure WordPress with MySQL, and answering common questions along the way. If you are new to this technology, you might want to start by understanding what is Docker and how it revolutionizes application deployment.

🚀 Why Install WordPress with Docker?

Before we dive into the steps, it helps to understand why using WordPress with Docker is becoming so popular among system administrators and web developers:

• Isolation: Each container runs independently in its own userspace, reducing conflicts between different software versions and dependencies. This is a core benefit of virtualization vs containerization strategies.

• Portability: You can package your entire application, including the database and configuration, and move your setup from local development to any VPS production environment without rewriting code.

• Scalability: Docker makes it simple to spin up multiple containers or integrate with orchestration tools like Kubernetes or Docker Swarm as your traffic grows.

• Easy updates & rollbacks: Containers can be rebuilt with new versions of WordPress or PHP quickly. If an update fails, rolling back to a previous image version takes only seconds.

🚀 Prerequisites for Installing WordPress with Docker on a VPS

Before you begin the installation process, ensure your environment meets the following requirements to avoid common setup errors:

• An active VPS (like Contabo VPS, 1Gbits VPS, or any other high-performance node). For the best experience, choose a server optimized for Docker.

• Root or sudo access to your VPS terminal. Understanding how sudo works in Linux is essential for security.

• Docker and Docker Compose installed (we will cover the installation steps below).

• Basic knowledge of SSH and the command line interface. If you're unsure, check our guide on what SSH is used for.

🚀 How to Install Docker on a VPS

Many people ask, "Can I install Docker on VPS?" Absolutely! In fact, it is the preferred method for modern hosting. Here's how to do it on Ubuntu — one of the most common Linux distributions for VPS users.

💡 1. Update your package list

Ensure your system is up to date before installing new software to prevent dependency conflicts:

sudo apt update

💡 2. Install Docker dependencies

Install the necessary packages that allow apt to use a repository over HTTPS:

sudo apt install apt-transport-https ca-certificates curl software-properties-common

💡 3. Add Docker's official GPG key

Verify the integrity of the software you are downloading by adding the official key:

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

💡 4. Add the Docker repository

sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"

💡 5. Install Docker Engine

Now, update your package database again and install the latest version of Docker CE (Community Edition):

sudo apt update

sudo apt install docker-ce

💡 6. Verify Docker installation

Run the following command to ensure the service is active and check the version:

docker --version

You can now run Docker containers! However, for managing multiple containers like WordPress alongside a database, you'll also need Docker Compose. For a deeper dive into these components, see our guide on what is a Docker container.

🚀 How to Install Docker Compose

Docker Compose allows you to define and run multi-container applications. Follow these commands to download the latest binary and set the correct permissions:

sudo curl -L "https://github.com/docker/compose/releases/download/2.24.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

sudo chmod +x /usr/local/bin/docker-compose

docker-compose --version

By completing this step, you have unlocked the ability to use YAML files for orchestration. If you want to learn more about the specifics of this tool, read what is Docker Compose.

🚀 How to Install WordPress with Docker on a VPS (Ubuntu)

Let's get into the install WordPress Docker Ubuntu steps. We will use a docker-compose.yml file to automate the deployment of both WordPress and its MySQL database.

💡 1. Create a new project directory

It is best practice to keep your Docker projects organized in their own folders:

mkdir wordpress-docker

cd wordpress-docker

💡 2. Create docker-compose.yml

Use a text editor like Nano to create the file and paste the following configuration:

version: '3.8'
services:
wordpress:
image: wordpress:latest
container_name: wordpress_container
restart: always
ports:
- "8080:80"
environment:
WORDPRESS_DB_HOST: db
WORDPRESS_DB_USER: wordpress
WORDPRESS_DB_PASSWORD: wordpress_password
WORDPRESS_DB_NAME: wordpress_db
volumes:
- wordpress_data:/var/www/html
db:
image: mysql:5.7
container_name: mysql_container
restart: always
environment:
MYSQL_DATABASE: wordpress_db
MYSQL_USER: wordpress
MYSQL_PASSWORD: wordpress_password
MYSQL_ROOT_PASSWORD: root_password
volumes:
- db_data:/var/lib/mysql
volumes:
wordpress_data:
db_data:

This Docker WordPress with MySQL configuration ensures that your site data and database records are stored in named volumes, preventing data loss when containers are stopped or updated.

💡 3. Start your containers

Run the following command to pull the images and start the services in the background (detached mode):

docker-compose up -d

Once complete, you can access your WordPress site at http://your_server_ip:8080 to finish the famous 5-minute installation.

🚀 How to Install WordPress with Docker on a VPS (Windows)

If you're wondering, "How to install WordPress with Docker on a VPS Windows?", the logic is almost identical, but the management tool changes. You will typically use Docker Desktop for Windows.

1. Download and install Docker Desktop for Windows.

2. Enable WSL 2 (Windows Subsystem for Linux) in your Windows features for better performance.

3. Open PowerShell or Command Prompt as Administrator.

4. Use the same docker-compose.yml file provided in the Linux section above.

5. Run docker-compose up -d inside your project directory.

This method is also ideal for Docker WordPress local development, allowing you to test themes and plugins on your Windows machine before pushing them to a live Linux VPS. Read more about the benefits in our guide: How to Host a Website on Linux VPS.

🚀 Understanding Docker WordPress Compose

Docker Compose simplifies the complexity of manual container linking. Instead of running separate commands for the web server and the database, you define them as "services" in a single YAML file. This orchestration ensures the database is ready before WordPress tries to connect to it.

For advanced users who want to maximize their stack:

• Add phpMyAdmin: You can add phpMyAdmin as another service in your Compose file for easy visual database management. If you prefer a manual setup, see how to install phpMyAdmin on Ubuntu.

• Custom Images: Create your own Docker image to pre-install specific PHP extensions or WordPress themes.

• Scale Services: Use docker-compose up --scale wordpress=3 to handle higher traffic loads effectively.

🚀 Tips for Production Docker WordPress Setup

When you move from development to a production WordPress Docker environment, security and stability become the top priorities. Here are professional recommendations for a robust setup:

✅ Enable HTTPS with a Reverse Proxy

Never run a production site on port 8080 without encryption. Use a reverse proxy like NGINX to handle SSL termination. You can even automate this using NGINX Proxy Manager, which provides a web interface for Let's Encrypt certificates.

✅ Automate Backups

Mounting volumes is step one, but step two is backing up those volumes. Use a cron job to schedule automatic backups for your SQL dumps and media files. Store these on a separate server or cloud storage for disaster recovery.

✅ Use Environment Variables Securely

Hard-coding passwords in your docker-compose.yml is a security risk. Instead, use a .env file to store sensitive data and reference them in your YAML file. This keeps your credentials out of version control systems like Git.

✅ Monitor Your Containers

A container might stop due to resource exhaustion. Use tools like Portainer for a GUI overview or CLI tools like docker stats to monitor your VPS server performance in real-time.

🚀 Common Errors and Fixes

Even with a perfect setup, you might encounter these hurdles when running WordPress in Docker:

🚀 Comparison: Traditional Install vs. Docker Install

Why choose Docker over a standard LAMP or LEMP stack? Here is a quick breakdown:

• Deployment Speed: Docker is significantly faster to deploy once the YAML file is ready.
• Cleanup: Removing a site in Docker is as simple as docker-compose down, whereas traditional uninstalls leave traces in the OS.
• Conflict Management: Docker allows you to run WordPress with PHP 8.2 alongside another app on PHP 7.4 on the same VPS without issues.

🚀 Final Thoughts

Setting up WordPress with Docker on a VPS combines the best of both worlds — the flexibility of the world's most popular CMS and the efficiency of modern containerization. Now you know how to install WordPress with Docker on a VPS, whether it's for local development or a full-scale production site. This approach ensures your hosting environment is clean, scalable, and easy to maintain. To get started with a high-uptime environment, consider a Buy VPS Online plan, a dedicated Buy WordPress VPS, or a Buy Docker VPS to deploy your setup quickly and efficiently.