tryretool/retool-onpremise — reverse-engineered prompt

I want a simple self hosted Retool setup that I can run on an Ubuntu server with Docker Compose. Please get this repo into a state where I can install it, generate the needed env files, and start the app without a lot of manual digging. Make sure the setup covers the normal flow, install, configure, run, and upgrade, and clearly handles the license key plus the generated secrets, especially the encryption key so I know to save it.

I want it to work either on a raw server IP for testing or on a real domain with HTTPS. If a domain is set, wire it up so it can use a Lets Encrypt cert. If HTTPS is not set yet, make sure login still works in the expected local testing mode.

Use the default included workflow setup unless there is an obvious reason not to. Also make the version easy to update later and keep the upgrade path straightforward. If anything is unclear, check the current Retool deployment docs online.