sudo docker kill $(sudo docker ps -q)

#remove all containers
sudo docker rm --force $(sudo docker ps -a -q)

#remove all docker images
sudo docker rmi --force $(sudo docker images -q)

#remove all unused volumes
sudo docker volume prune --force

#k8s
sudo service docker stop
sudo rm -rf /etc/cni
sudo rm -rf /etc/kubernetes
sudo rm -rf /opt/cni
sudo rm -rf /var/lib/calico/
sudo rm -rf /var/lib/cni/
sudo rm -rf /var/lib/etcd/
sudo rm -rf /var/lib/rancher/*
sudo rm -rf /var/run/calico
sudo service docker start