cleanup.sh

#!/bin/bash

set -e

echo "==================== before cleanup: `date --utc --iso-8601=seconds`"
df -h | grep -v ^overlay | grep -v ^tmpfs | grep -v ^shm | grep -v /snap/

echo ""

if which docker; then 
   echo 'run docker cleanup ... '
   docker system prune -a -f --volumes
elif which crictl; then 
   echo 'run crictl cleanup ... '
   crictl rmi --prune
elif which ctr; then
   ctr -n k8s.io i rm $(ctr -n k8s.io i ls -q )
else
   echo "ERROR: neither docker nor crictl nor ctr found in PATH:$PATH"
fi

echo "" 

echo "==================== after cleanup: `date --utc --iso-8601=seconds`"
df -h | grep -v ^overlay | grep -v ^tmpfs | grep -v ^shm | grep -v /snap/