In looking though the Jitsi meet documentation , there seems to be a way to limit meeting creation:
Are these files located in a different place in a Jelastic install? It would be nice to be able to do this, lest you end up subsidizing large video conferences for people who happen upon your site.
The installer uses the file at /root/docker-jitsi-meet/.env to set several options
If you edit that file you should then be able to run the following commands in the same folder to rebuild and redeploy:
docker-compose up -d
Info on the configurations with this docker-based installation method are at Self-Hosting Guide - Docker · Jitsi Meet Handbook
Actually once I paid attention I realized it was set that way by default. When you enter a meeting ID, it says the meeting hasn’t started yet and to log in with credentials if you are the host. Problem solved.