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We are already thinking about how this should actually behave and polishing details that might be missing. What is kept after a cluster deletion is the MachineRegistration. You should be capable to register again the machine to Rancher Manager by running

elemental-register

command and it is expected to create the inventory again. In order to clean up a node one option would be reboot to recovery system and call

elemental --debug reset --reboot

and it will reinstall the image that was once installed. It will keep the /oem partition contents so it will automatically attempt to register again at boot.

elemental reset

also has the

--reset-persistent

to format the persistent partition in case you also want to cleanup these part for a new clean fresh start. Currently there is no automation or trigger based on Cluster deletion, we are aware about it, this is something that already raised within the engineering team.

Okay great, I will try those methods. Though it would be handy to have a button, or option to toggle during cluster removal, running a couple commands, or rebooting to recovery sounds good. Thanks for the tips, it will certainly work well enough for now while testing different scenarios. 🙂