Vagrant

A vagrant is a person, often in poverty, who wanders from place to place without a home or regular employment or income.

Vagrant is a  individual animal appear well outside it normal range

 "vagrant"  ultimately derive from Latin word vagari

I ramble, wander, stroll about.

I waver, am unsettled.

Vagrant is free and open-source software for creating and configuring virtual development environments

It can be considered a wrapper around virtualization and configuration management software

Vagrant provides easy to configure, reproducible, and portable work environments built on top of industry-standard technology and controlled by a single consistent workflow to help maximize the productivity and flexibility of you and your team

​https://docs.vagrantup.com/v2/why-vagrant/index.html

Create and configure lightweight, reproducible, and portable development environments.

Vagrant will isolate dependencies and their configuration within a single disposable, consistent environment

Vagrant gives you a disposable environment and consistent workflow for developing and testing infrastructure management scripts

Vagrant will automatically set everything up that is required.

Once a developer configures Vagrant, you don't need to worry about how to get that app running ever again. 

MULTI-MACHINE

Define and control multiple guest machines.

These machines are generally able to work together or are somehow associated with each other.

Accurately modeling a multi-server production topology, such as separating a web and database server.

Modeling a distributed system and how they interact with each other.
Testing an interface, such as an API to a service component.

Disaster-case testing: machines dying, network partitions, slow networks, inconsistent world views, etc.

Vagrant.configure("2") do |config|

  config.vm.define "web" do |web|
    web.vm.box = "apache"
  end

  config.vm.define "db" do |db|
    db.vm.box = "mysql"
  end

end

BOXES

Boxes are the package format for Vagrant environments. A box can be used by anyone on any platform that Vagrant supports to bring up an identical working environment.

public Vagrant box catalog

https://vagrantcloud.com/discover​