createUniqueSubscriptionSetCollections.sh

HOSTS=$(hammer host list --fields Id | grep -v ID | grep -v -- --)

for i in ${HOSTS}
do
  subscriptions=$(hammer host subscription product-content --host-id $i --fields Name | grep -v "Red Hat" | grep -v "NAME" | grep -v -- ----------------------------------------------------------------------------)
  echo "$subscriptions" > "$i"
  hash=$(sha256sum $i | cut -d " " -f 1)
  rm $i
  echo $i >> $hash
  echo $hash >> array
done

awk -i inplace '!seen[$0]++' array

while read hash
do
  hammer host-collection create --name $hash --organization "CHANGEME"
  ids=$(paste -d, -s $hash)
  hammer host-collection add-host --name $hash --host-ids $ids --organization "CHANGEME"
done <array

This script will identify and group hosts in Satellite that share the same exact set of subscriptions and create a host collection per grouping. This is helpful for teams that are preparing to enable Simple Content Access; however, need to first disable all of the unsubscribed repositories that set themselves to enabled by default. Instead of disabling unsubscribed repositories host by host, this will trim it down, so that you can disable unsubscribed repositories host collection by host collection. It is not perfect, but it decreases the amount of time required to perform this task.

This script should be run within its own dedicated directory (ideally), as it will create many files as part of the work that it is performing.

DISCLAIMER
This script is being made available publicly without support or guarantee of proper functionality. Please modify the script as you see fit for your needs and always test in a NON-production environment and ensure proper functionality for yourself.