How to Install Docker on a VPS
Docker is a popular containerization technology that allows you to package your applications and their dependencies into a standardized unit for software development. This article will guide you through the process of installing Docker on a VPS (Virtual Private Server).
Step 1: Update Your System
Before you begin, it’s essential to ensure that your VPS is up to date. Run the following commands:
sudo apt update
sudo apt upgrade
Step 2: Install Docker
Once your system is updated, you can now proceed with installing Docker. Run the following command:
sudo apt install docker.io
Step 3: Start and Enable Docker
After Docker is installed, you need to start and enable the Docker service. Run the following commands:
sudo systemctl start docker
sudo systemctl enable docker
Step 4: Verify Docker Installation
To verify that Docker has been successfully installed, run the following command:
docker --version
You should see the version of Docker installed on your VPS.
Step 5: Manage Docker as a Non-Root User
By default, Docker requires root privileges to run. However, it’s recommended to manage Docker as a non-root user for security reasons. Add your user to the Docker group by running the following command:
sudo usermod -aG docker $USER
Replace $USER with your username. You may need to log out and log back in for the changes to take effect.
Conclusion
By following these steps, you should now have Docker successfully installed on your VPS. You can now start containerizing your applications and enjoy the benefits of containerization technology.