1、卸載舊版本
$ sudo yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine
2、設置存儲庫
$ sudo yum install -y yum-utils
$ sudo yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repo
3、安裝DOCKER引擎
$ sudo yum install docker-ce docker-ce-cli containerd.io
4、啓動Docker
$ sudo systemctl start docker
5、設置成自啓動
$ sudo systemctl enable docker
6、查看所有鏡像
$ sudo docker images
7、配置阿里雲鏡像加速器
$ sudo mkdir -p /etc/docker
$ sudo tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["https://rw4wqipd.mirror.aliyuncs.com"]
}
EOF
$ sudo systemctl daemon-reload
$ sudo systemctl restart docker