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Multi-Machine Vagrant from INI configuration file

This is a multi-machine Vagrant system that dynamically configures four systems from INI configuration file.

Notes

Provisioning scripts will make changes to /etc/hosts and /etc/ssh/ssh_config for easy access between systems. After entering one system, e.g. vagrant ssh client, you can easily get to another system using just the host name, e.g. ssh master.

Prerequisites

vagrant plugin install inifile

Nerd Notes

The Vagrantfile demonstrates transforming a 2-dimensional data-structure (hash of hash) to a 4-dimensional data-structure (hash of hash of list of hash).

Instructions

vagrant up          # start and provision all systems
vagrant provision   # provision or re-provision all systems
vagrant ssh         # ssh into master
vagrant ssh client  # ssh into client
vagrant halt client # shutdown client
vagrant halt        # shutdown all systems
vagrant reload      # restart all systems
vagrant destroy     # delete all systems

Ansible Inventory

A sample Python script is available for testing an Ansible dynamic inventory file. With Ansible installed on a Linux or Mac OS X host, you can run:

vagrant up          # bring systems up
export ANSIBLE_HOST_KEY_CHECKING=False
ansible all -i "config/inventory.py" -m ping
# run a single command
ansible all -i "config/inventory.py" -a 'lsb_release -a'