Installing Docker on Ubuntu 22.04

Docker is an open-source platform that automates the deployment of applications in containers. It allows developers to package an application with all of its dependencies into a standardized unit for easy distribution and deployment.

Here are the steps to install Docker on Ubuntu 22.04:

1. Update the system packages: sudo apt update
2. Install necessary dependencies: sudo apt install apt-transport-https ca-certificates curl software-properties-common
3. Add the Docker GPG key: curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
4. Add the Docker repository: echo "deb [arch=amd64 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
5. Install Docker: sudo apt update and then sudo apt install docker-ce docker-ce-cli containerd.io
6. Verify the installation: sudo docker run hello-world

That's it! Docker should now be installed on your Ubuntu 22.04 system. You can now start using Docker to containerize and deploy your applications.