How to Install Docker on a VPS
Introduction
Docker makes it easy to deploy and manage applications in containers. This guide shows you how to install Docker on your VPS quickly and securely.
Step-by-step Guide
- Update your package list:
- sudo apt update
- Install required dependencies:
- sudo apt install apt-transport-https ca-certificates curl software-properties-common
- Add Docker’s official GPG key:
- curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
- Add the Docker repository:
- echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
- Update the package list again:
- sudo apt update
- Install Docker:
- sudo apt install docker-ce
- Check Docker version:
- docker --version
- (Optional) Add your user to the docker group:
- sudo usermod -aG docker $USER
Log out and back in for this to take effect.
Recommendations
- Always keep Docker updated to the latest stable version.
- Use the docker group for convenience, but be aware of security implications.
- Regularly review running containers and images.
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