# 添加Docker仓库
yum install -y yum-utils
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
# 锁定版本并安装
yum install -y docker-ce-19.03.15 docker-ce-cli-19.03.15 containerd.io
# 启动并设置开机自启
systemctl start docker
systemctl enable docker
