The documentation on Vagrant is divided in three parts:
0 - Basics of Vagrant and intuition: why is Vagrant useful at all?
1 - Useful commands to run Vagrant: some useful commands (to be run in the terminal) to run Vagrant
2 - Defining the Vagrantfile: the syntax of the Vagrantfile (Ruby language) that will allow us to launch the Virtual Machines as coded. (In progress)
Vagrant is one of the components we will use the most during the course, and a very handy DevOps tool. In a nutshell, Vagrant allows us to define a set of basic steps to get a Virtual Machine ready according to a set of specifications (which will be defined in the Vagrantfile).
It is a DevOps tool since it automates the process of starting and adding packages to VM, ensuring the it will run the same way every time we run the same Vagrantfile, even across different computers!
The basic file we need to take care once vagrant is installed is Vagrantfile (which uses the Ruby syntax), and lists the requirements for running the VM. We will encode statements such as Allocate 1024 MB of RAM for the VM, Download Python 3, Forward any traffic received on port 5000 in the VM to port 5000 in the local machine, etc.
The Vagrantfile syntax will be explained in more detail in this section.
Vagrant also installs a set of commands on our local machine, which will allow us to manage VMs though command-line statements, which are listed in this section.