Using yum docker mounting (mounting process can refer linux installation docker ), To uninstall docker can click the steps:
1, view the current status of docker
If you are running the state stopped
systemctl stop docker
2, see the yum install package docker
yum list installed |grep docker
View docker relevant source file rpm
rpm -qa |grep docker
3, delete all the files installed packages docker
yum -y remove docker.x86_64
Other relevant installation package docker same deletion, deleted after completion can then view the docker rpm source
rpm -qa |grep docker
4, delete docker image file, by default in / var / lib / docker directory
Delete the above docker directory
rm -rf /var/lib/docker
This docker uninstall is complete