What's a Vagrantfile?
Vagrantfile is Vagrant's configuration file. Think of it as your single reference of rules that Vagrant will follow.
It's in the
Vagrantfile that you will do all your setup.
Vagrantfile can get quite complex. Many demos and examples online will have some crazy complicated setups.
It doesn't matter if it's a complicated setup or a simple one. We will cut through all this noise and explain what's going on so you can understand them.