gistfile1.txt

#!/bin/bash
set -eo pipefail

cat /tmp/copy-pasted-text-from-browser.txt \
  | grep host | awk -F: '{print $2}' \
  | xargs -P6 -n 10 aws ec2 describe-instances --query 'Reservations[*].Instances[*].PrivateIpAddress' --output text --instance-ids \
  | xargs -P6 -n 1 -I % ssh -o "UserKnownHostsFile=/dev/null" -o "StrictHostKeyChecking=no" % docker image prune -a -f

just select table content below

and copy-paste it into /tmp/copy-pasted-text-from-browser.txt and then run the script.

you need to have this setting in your ssh_config:

Host 10.57.*
   ProxyCommand ssh -W %h:%p bastion.cre-pro.schibsted.io