JitSi+Cloud-Init as throw-away-Server

I was wondering if someone already had a simmelar idea: Automatically set up a JitSi-Server on an hourly-paid Server using Cloud-Init. Automatically set the DNS-Records to this Server using DynDNS. After the server set itself up automatically, have the meeting. After the Meeting delete the Server.

A problematic scenario seems like this: Someone alread tries to visit the Website before the Meeting. DNS points to nowhere and is cached everywhere …

Do you have any ideas/comments to this approach? Is there someone who has already done something like this?

Best Regards!

I have worked on a solution similar to what you have requested:

Your DNS problem could be solved by setting the record to a very low TTL, e.g. 5 minutes.