# 安装/更新 yum-utilsyum install -y yum-utils# 配置 yum源yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo# 安装 docker 20.10.7 版本yum -y install docker-ce-20.10.7 docker-ce-cli-20.10.7 containerd.io# 查看 docker 版本docker -v# 启动 dockersystemctl start docker# 查看 docker 是否成功, 有 Client 和 Server 即成功docker version

sudo mkdir -p /etc/dockersudo tee /etc/docker/daemon.json <<-'EOF'{ "registry-mirrors" : [   "https://mirror.ccs.tencentyun.com",   "http://registry.docker-cn.com",   "http://docker.mirrors.ustc.edu.cn",   "http://hub-mirror.c.163.com" ], "insecure-registries" : [   "registry.docker-cn.com",   "docker.mirrors.ustc.edu.cn" ], "debug" : true, "experimental" : true}EOFsudo systemctl daemon-reloadsudo systemctl restart docker# 查看是否配置成功docker info