Ubuntu on Raspberry Pi for testing - Is it possible to automatically reset the distro every week

I have en extra Raspberry Pi that should be used for testing various Ubuntu stuff in the future. But I would like to have it purely as a test machine, so that it for example is reset every week or something like that.

Is it possible to reset a distro, basically making it a fresh install every week? For example a script from another computer.

Or is it more advisable to create a docker image for this purpose and then reset it every week?

Or some other setup?