Docker • VPS Deployment • 2026 Guide

How to Install Docker on a VPS Server (2026 Tutorial)

Docker is one of the most powerful tools for deploying applications on a VPS.
In this guide you’ll learn how to install Docker on Ubuntu step-by-step, configure it safely,
and start running containers for websites, APIs, and development environments.

by Hamza • DevOps Guide

Docker allows developers to package applications and their dependencies into lightweight containers.
These containers run consistently across different systems, which solves the classic problem of
“it works on my machine but not on the server.”

By installing Docker on your VPS, you can run multiple applications, databases, and services
in isolated environments without complicated manual configuration.

What You’ll Learn

Install Docker Engine

Set up Docker on Ubuntu using official repositories.

Configure permissions

Allow non-root users to run Docker commands safely.

Run your first container

Test Docker installation with a sample container.

Manage containers

Start, stop, and monitor Docker containers.

1. Update Your VPS

Before installing Docker, update the system packages to ensure your VPS is running the latest software.

sudo apt update && sudo apt upgrade -y

2. Install Required Dependencies

Docker requires a few supporting packages to communicate securely with repositories.

sudo apt install ca-certificates curl gnupg

3. Add Docker Official Repository

Instead of installing Docker from the default Ubuntu repository,
use the official Docker repository to get the latest version.

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg –dearmor -o /usr/share/keyrings/docker.gpg

4. Install Docker Engine

Once the repository is configured, install Docker.

sudo apt install docker-ce docker-ce-cli containerd.io

This installs Docker Engine and related components required to run containers.

5. Verify Docker Installation

Check that Docker is installed and running properly.

docker –version

You should see the installed Docker version displayed.

6. Run Your First Docker Container

To confirm Docker works correctly, run the hello-world container.

sudo docker run hello-world

Docker will download a test image and run it successfully if everything is configured correctly.

Best Practices for Docker on VPS

Use Docker Compose

Manage multi-container apps easily.

Monitor resources

Keep track of CPU and memory usage.

Update images

Keep containers updated for security.

Limit exposed ports

Reduce attack surface on your VPS.

Conclusion

Installing Docker on a VPS allows you to deploy applications quickly and reliably.
Containers make it easier to manage services, scale projects, and maintain consistent environments.

If you’re looking for a reliable VPS to run Docker containers and cloud applications,
you can explore Retzor VPS hosting
for scalable and developer-friendly infrastructure.