Graceful server reboot

What problem will this feature address?

Sometimes, it's required to reboot a server (or the server, I only use one). When doing so, however, I sometimes noticed that my databases do not handle this well (in particular, I had to use pg_resetwal a few times and got inconsistencies that I haven't yet been able to recover from in one case).

Therefore, the obvious solution is to shutdown all databases (and everything else too, really) before rebooting the server. However, to do this, one has to go through each project individually.

Describe the solution you'd like

It would be amazing if there was a "Shut down all projects" option somewhere, and one to restart them after rebooting.

Additionally, it would be amazing if this functionality (stopping everything, and starting everything that was not already stopped anyways before) was available through the API too – this would safe me from many lines in my backup script. But for me it'd already be great if the UI was there.

Describe alternatives you've considered

Another option would be a "restart server" button in the UI, however, that'd potentially be less flexible; I could imagine there being other usecases for the "shut down everything" option than rebooting the service.

Additional context

No response

Will you send a PR to implement it?

Maybe, need help

No files, tests, or entry points are named. Start by locating how projects are shut down and started, then identify the existing UI and API controls involved. Done should include a way to stop all projects, restart only those that were running, and expose equivalent API functionality.