1、查看当期的docker版本

docker -v

2、停止docker服务

systemctl stop docker

3、查询docker安装包

yum list installed|grep docker

# OR
# rpm -qa|grep docker

4、分别删除安装包

yum remove –y docker.x86_64
yum remove –y docker-client.x86_64
yum remove –y docker-common.x86_64

5、再次确认是否全部删除

yum list installed|grep docker

6、更新配置文件

# 备份配置文件
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

# 下载新的CentOS-Base.repo 到/etc/yum.repos.d/
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

# 删除下面的配置文件
rm -f /etc/yum.repos.d/docker-ce.repo
rm -f /etc/yum.repos.d/docker.repo

# 运行下面命令
yum install -y yum-utils device-mapper-persistent-data lvm2

# 设置镜像源
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

7、安装最新版本的docker

yum install docker-ce docker-ce-cli containerd.io

8、启动docker

systemctl start docker

参考文章

• https://blog.csdn.net/weixin_54761262/article/details/129108255
• https://blog.csdn.net/weixin_43950014/article/details/114848148
• https://blog.csdn.net/wangshuminjava/article/details/89310113
• https://blog.csdn.net/weixin_45322291/article/details/125149360