Installation and Configuration Command Code Example of Docker

docker Installation

Install dependency packages

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

Set up Alibaba Cloud Image Source

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

Installing Docker-CE

sudo yum install docker-ce

Start docker

#  Startup and self-startup 
sudo systemctl enable docker 
#  Start docker Services  
sudo systemctl start docker

Operation command

# 1 To view the installed docker : 
docker images
# 2 , uninstall docker : 
sudo yum remove -y XXX
# 3 To delete the container image: 
sudo rm -rf /var/lib/docker
# 4 ,   Reinstall docker
sudo yum install docker-ce
# 5 , docker Running status 
docker ps -a