How To Install & Setup Docker On RHEL 7.X / CentOS 7.X

Docker is free and an open-source software for developing and running user application, It runs the user applications in an isolated environment called the container.

Containers are lightweight and it can be able to run one or multiple on the host.you can also run Docker containers within host machines which are actually VM's.

This tutorial shows how to install, setup and use Docker to create your first container.

How To Install Docker on Centos 7.X / RHEL 7.X

Step 1: Remove older version of Docker & Install the required packages

sudo yum remove docker* && sudo yum install -y yum-utils device-mapper-persistent-data lvm2

Step 2: Add the docker CE repo

sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker.repo

Step 3: Install Docker

sudo yum install docker

How To Start, stop, restart & Enable Docker Service

sudo systemctl start docker.service

sudo systemctl stop docker.service

sudo systemctl restart docker.service

sudo systemctl enable docker.service

Step 4: view Docker version

docker version

Test Your Docker Installation

After successful installation, you can test the docker using the below command

docker run hello-world