Cleanup host added as custom to Rancher 2.0

cleanup.sh

#!/bin/bash
user=$EUID
if [ "${user}" != "0" ]; then
  echo
  echo "$0 must be run as root - you are running as $EUID"
  echo
  exit 1
fi
echo
echo "About to destroy Rancher 2.x install"
echo "5s to cancel with ^c"
echo
sleep 5

containers=$(docker ps -a | grep -E "rancher|k8s" | awk '{print $1}')
if [ "${containers}x" != "x" ]
then
  docker rm -f $containers
else
  echo "No containers - ignoring docker rm"
fi

images=$(docker images -a | grep -E "rancher|k8s" | awk '{print $3}')
if [ "${images}x" != "x" ]
then
  docker rmi $images
else
  echo "No images - ignoring docker rmi"
fi

docker volume prune


cleanupdirs="/var/lib/etcd /etc/kubernetes /etc/cni /opt/cni /var/lib/cni /var/run/calico /opt/rke"
for dir in $cleanupdirs; do
  echo "Removing $dir"
  rm -rf $dir
done

echo
echo "About to clean ip tables"
echo "5s to cancel with ^c"
echo

sleep 5

echo
echo "Cleaning ip tables"
echo

iptables -F -t nat
iptables -X -t nat
iptables -F -t mangle
iptables -X -t mangle
iptables -F
iptables -X

echo
echo "Restarting Docker"
echo
service docker restart

Run:

curl https://gist.githubusercontent.com/jholt456/f0ff07bf942d78bad033b5c378f28146/raw/cc9edb0f1395fee190ed4bf6437a6ca2652d4ed6/cleanup.sh > ./clean-rke.sh && chmod a+x ./clean-rke.sh && sudo ./clean-rke.sh