centos安装docker.ce遇到报错，提示如下# yum install -y docker-ceLast metadata expiration check: 0:01:49 ago on Fri Aug 14 22:21:34 2020.Error:Problem: package docker-ce-3:19.03.12-3.el7.x86_64 requires containerd

centos安装docker.ce遇到报错，提示如下# yum install -y docker-ceLast metadata expiration check: 0:01:49 ago on Fri Aug 14 22:21:34 2020.Error:Problem: package docker-ce-3:19.03.12-3.el7.x86_64 requires containerd

Docker 拉取镜像的时候默认是国外的镜像源，下载非常慢甚至无法拉取成功。需要配置成国内的镜像源来加快下载的速度。以centos 8 为例，修改文件/etc/docker/daemon.json文件添加如下内容：{"registry-mirrors" : ["http://docker.mirrors.ustc.edu.cn","http://registry.docker-cn.com","h