How to install docker in linux

Test the installation environment

centos8 64

Install yum-utils toolkit

 sudo yum install -y yum-utils

Set up download library

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

Remove podman (conflicts with docker)

yum erase podman buildah

Install docker

sudo yum install docker-ce docker-ce-cli containerd.io

Start the docker service

systemctl start docker

Start the docker service on boot

systemctl enable docker

Run the test program

sudo docker run hello-world