What does puppet do?

Question

Vagrant

On the site https://puphpet.com I generated a package with Vagrantfile. Also installed vagrant for the first time on a working ubuntu.
I entered the command $ vagrant up
in the directory where I unpacked the generated package with Vagrantfile

But already there, for about 2 hours, something has been done in the console, it's a bummer. I just wanted to install php7 + apache + mysql, but what else is installed there additionally, and how does vagrant work in general? It seems like it should run operating systems, but what about in our case?
But I still went into this virtual machine:

in the browser I could only go to the address: 192.168.56.101
and why can’t I, how did I choose awesome.com by default when generating the file?
to use (install) phpmyadmin do I need to use the sudo command in this virtual machine?
is it possible to somehow centrally control all these virtual machines (otherwise logout here and here, if you run another one in parallel)?