如何不卸载docker情况下升级docker

原文:出处
idea连接不上docker或者拉取镜像报错:… missing signature key
1、rpm -qa | grep docker

   docker-1.13.1-53.git774336d.el7.centos.x86_64
  docker-client-1.13.1-53.git774336d.el7.centos.x86_64
  docker-common-1.13.1-53.git774336d.el7.centos.x86_64

2、使用yum remove卸载软件

yum remove docker-1.13.1-53.git774336d.el7.centos.x86_64
yum remove docker-client-1.13.1-53.git774336d.el7.centos.x86_64
yum remove docker-common-1.13.1-53.git774336d.el7.centos.x86_64

3、curl -fsSL https://get.docker.com/ | sh
4、systemctl restart docker
5、systemctl enable docker
6、docker version

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