Docker – Install on CentOS 7

This tutorial shows how to install Docker on the Linux machine (CentOS 7).

Check OS

cat /etc/redhat-release

Switch User to super user

sudo su

Update the System

yum update -y
 
yum install -y yum-utils
yum install -y device-mapper-persistent-data
yum install -y lvm2

Add Docker Repository

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

Install Docker

yum install -y docker-ce

Add a user to the docker group

usermod -a -G docker user_name
 
exit
 
docker version

• To make a user to access docker, you need to log out and log in again.

Start Docker

sudo systemctl enable docker
sudo systemctl start docker
 
docker image ls

Run a Image and Check the container

docker container run hello-world
 
docker image ls
docker container ls -a
docker container ps -a
 
docker container inspect d9605d9e14f0
docker container rm d9605d9e14f0
docker container ls -a
 
docker image rm hello-world
docker image ls

Stop Docker

sudo systemctl stop docker

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Uninstall Docker

sudo yum remove -y docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \
                  docker-latest-logrotate \
                  docker-logrotate \
                  docker-engine