Vagrant template of a 3-node VM cluster.

The goal is provide a basic Vagrantfile that provisions three machines with a common hosts file for out-of-the-box DNS name-based interconnectivity.

This Vagrantfile includes the GetoptLong ruby library, and thus the vagrant command expects the --machine option to be passed with the desired Vagrant box. For example:

vagrant --machine="ubuntu/xenial64" up

Which will create a 3-node ubuntu (xenial64) cluster.

Keep in mind you will need to append EVERY vagrant command (up, destroy, status) with the --machine option.

This setup uses Vagrant's file provisioner and inline shell provisioner to move the hosts file from the root directory to /etc/hosts file. The hosts reside on a private network, 192.168.56.0/24. Each host is simply named host$ where $ is the associated host number. No other applications or files are installed, beyond what's included in the base Vagrant box.