centos8默认使用podman代替docker，所以需要containerd.io，那我们就安装一下就好了。 # 1、安装containerd.io ``` yum install https://download.docker.com/linux/fedora/30/x86_64/stable/Packages/containerd.io-1.2.6-3.3.fc30.x86_64.rpm ``` # 2、安装Docker ``` yum install -y yum-utils device-mapper-persistent-data lvm2 yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo yum install -y docker-ce systemctl start docker systemctl enable docker ```