Installing Docker on CentOS 7

Docker is an open-source platform that allows developers and system administrators to build, package, and distribute applications as containerized environments. Containers are lightweight, isolated, and portable, providing a consistent environment for running applications.

Here are the steps to install Docker on CentOS 7:

1. Open the terminal on your CentOS 7 system.
2. Update the package index by running the following command:
   yum update
3. Add the Docker repository by running the following command:
   sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
4. Install Docker by running the following command:
   sudo yum install docker-ce
5. Start the Docker service by running the following command:
   sudo systemctl start docker
6. Enable Docker to start on boot:
   sudo systemctl enable docker
7. Verify that Docker has been installed successfully by running the following command:
   docker --version

By following these steps, Docker should now be installed and ready to use on your CentOS 7 system.