CentOS 8.0 安裝docker 報錯：Problem: package docker-ce-3:19.03.4-3.el7.x86_64 requires containerd.io >= 1

一、錯誤內容

package docker-ce-3:19.03.2-3.el7.x86_64 requires containerd.io >= 1.2.2-3, but none of the providers can be installed
- cannot install the best candidate for the job
- package containerd.io-1.2.2-3.3.el7.x86_64 is excluded
- package containerd.io-1.2.2-3.el7.x86_64 is excluded
- package containerd.io-1.2.4-3.1.el7.x86_64 is excluded
- package containerd.io-1.2.5-3.1.el7.x86_64 is excluded
- package containerd.io-1.2.6-3.3.el7.x86_64 is excluded
(try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)

二、分析緣由

看上面的內容，說的是containerd.io >= 1.2.2-3 ，意思就是 containerd.io 的版本必須大於等於 1.2.2-3

三、解決

一、要麼就下降docker 的版本

二、若是不想下降docker 版本，那麼就更新 containerd.io 的版本

wget https://download.docker.com/linux/centos/7/x86_64/edge/Packages/containerd.io-1.2.6-3.3.el7.x86_64.rpm yum install -y containerd.io-1.2.6-3.3.el7.x86_64.rpm

而後從新安裝最新版本的docker 便可成功安裝

四、檢查是否安裝成功

docker -v