在执行安装docker-ce命令的时候出错：
yum install docker-ce docker-ce-cli containerd.io
错误信息
[root@huidukongjian-h1 ~]# yum install docker-ce docker-ce-cli containerd.io
Last metadata expiration check: 0:13:10 ago on Sun 08 Mar 2020 04:23:54 AM UTC.
Error:
Problem: package docker-ce-3:19.03.7-3.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-1.2.10-3.2.el7.x86_64 is excluded
- package containerd.io-1.2.13-3.1.el7.x86_64 is excluded
- 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)
解决办法
手动下载并安装，下载地址： https://download.docker.com/linux/centos/7/x86_64/stable/Packages/ 。
安装
[root@huidukongjian-h1 ~]# wget https://download.docker.com/linux/centos/7/x86_64/stable/Packages/containerd.io-1.3.7-3.1.el7.x86_64.rpm
[root@huidukongjian-h1 ~]# sudo yum -y install ./containerd.io-1.3.7-3.1.el7.x86_64.rpm
