This is a question I couldn't find an answer Googling, maybe the terms I should search are different.
Suppose you have a containerized app, NGINX Container, PHP Container and DB Container.
You need to increment processing so you understand that you need to scale the PHP Container.
But to do this, you need one more server per different container?
Because, I think that if you scale your container is because you ran out of processing power in the first server, right?