1、安装yum-utils 工具包sudo yum install -y yum-utils
2、设置下载库sudo yum-config-manager \ --add-repo https://download.docker.com/linux/centos/docker-ce.repo
3、移除podman (与docker冲突)yum erase podman buildah
4、安装dockersudo yum install docker-ce docker-ce-cli containerd.io
5、启动docker服务systemctl start docker
6、开机启动docker服务systemctl enable docker
7、修改阿里云镜像（国内下载速度慢）sudo mkdir -p /etc/docker sudo tee /etc/docker/daemon.json <<-'EOF' { "registry-mirrors": ["https://pembhne7.mirror.aliyuncs.com"] } EOF sudo systemctl daemon-reload sudo systemctl restart docker
8、运行测试程序sudo docker run hello-world
