[jansommer]

Makes sense to be skeptical here. Cold boots can make the system slow unless there's a fairly constant flow of requests, and if that's the case, why not keep using app services. I get that the architect wants to rid the system of VM's, but going from monoliths to nano services.. Can't tell if that's a good idea.

But if you compare Azure Functions with stored procedures in a DB, then it's pretty cool to have a kind of hot swapping at the function level.

I'd be cautious, but with a gradual migration there's hopefully time for reflection as well. Going 100% on anything is rarely a good idea, so hopefully your architect isn't religious about this.