how to install docker on centos code example

Example 1: docker install in centos u7

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

sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
sudo yum install docker-ce -y
sudo systemctl start docker
sudo systemctl enable docker
sudo systemctl status docker
sudo docker -v

Example 2: install docker centos 8

dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo

Example 3: install docker centos 7

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

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