In this tutorial, we are going to install Docker on CentOS 7. Let’s follow the following steps to install Docker on CentOS 7.

Prerequisites

  • Kernel must be 3.10 at minimum
  • For checking kernel version, use this command:
uname -r

Add Docker’s Repository

sudo touch /etc/yum.repos.d/docker.repo

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[dockerrepo]
name=Docker Repository
baseurl=https://yum.dockerproject.org/repo/main/centos/$releasever/
enabled=1
gpgcheck=1
gpgkey=https://yum.dockerproject.org/gpg

Install Docker

sudo yum install docker-engine

The process of installing Docker on CentOS is done. Now, we must run a hello world container