Ubuntu completely removes Rancher

The content of this article refers to the following articles:

Link	blogger
https://blog.csdn.net/u014221090/article/details/107839580	CSDN user: caiyj374
https://blog.csdn.net/yjk13703623757/article/details/108105095	CSDN user: Locutus

If it is useful to you, it is recommended to go to the original address, like, collect and follow Sanlian. The following text:

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It is recommended to use it in the test environment, and use it with caution in the production environment. At least you must master the basic knowledge of Docker when using it. I am not responsible for any problems.

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docker stop $(docker ps -a -q)
docker system prune -f
docker volume rm $(docker volume ls -q)
docker rm -f $(docker ps -a -q)
rm -rf /etc/ceph \
       /etc/cni \
       /etc/kubernetes \
       /opt/cni \
       /opt/rke \
       /run/secrets/kubernetes.io \
       /run/calico \
       /run/flannel \
       /var/lib/calico \
       /var/lib/etcd \
       /var/lib/cni \
       /var/lib/kubelet \
       /var/lib/rancher/rke/log \
       /var/log/containers \
       /var/log/pods \

If /var/log/pods cannot be deleted in the last step, the error is reported as the device is busy, please uninstall the mounted device first, and use the following command:

umount $(df -HT | grep '/var/lib/kubelet/pods' | awk '{print $7}')

Then re-execute the last sentence to delete the command, and then you can reinstall Rancher.