Ganeti - Cluster-based virtualization management software

Ganeti in Vagrant

This document explains how you can easily test and try out Ganeti without needing a lot of extra hardware. This also provides a way for you to try out Ganeti on various platforms more easily.

See GitHub for the most up to date documentation.

Requirements

  • VirtualBox >=4.1.x
  • Vagrant >=1.0.3

Setup

  1. Install VirtualBox by going to their download page.

  2. Install Vagrant

    gem install vagrant

  3. Clone repository

    git clone git://github.com/ramereth/vagrant-ganeti.git

  4. Initialize submodule(s)

    git submodule update --init

Using Vagrant

The Vagrantfile is setup to where you can deploy one, two, or three nodes depending on your use case. Node1 will have Ganeti already initialized while the other two will only have Ganeti installed and primed.

For more information on how to use Vagrant, please check out their site.

Starting a single node

vagrant up node1
vagrant ssh node1

Starting node2

NOTE: Root password is ‘vagrant’.

vagrant up node2
vagrant ssh node1
gnt-node add -s 33.33.34.12 node2

Starting node3

NOTE: Root password is ‘vagrant’.

vagrant up node3
vagrant ssh node1
gnt-node add -s 33.33.34.13 node3

Accessing the nodes

Add the following to your /etc/hosts files for easier access locally.

33.33.33.10 ganeti.example.org
33.33.33.11 node1.example.org
33.33.33.12 node2.example.org
33.33.33.13 node3.example.org

All the nodes are using hostonly networking with the following IP addresses:

  • ganeti.example.org (cluster IP) = 33.33.33.10
  • node1.example.org = 33.33.33.11
  • node2.example.org = 33.33.33.12
  • node3.example.org = 33.33.33.13

Additionally, I have setup several VM DNS names in the /etc/hosts of each node that you can use:

  • instance1.example.org
  • instance2.example.org
  • instance3.example.org
  • instance4.example.org

The RAPI user setup for use on the cluster uses the following credentials.

  • user: vagrant
  • pass: vagrant

Running different Ganeti versions

This repo has been setup to deal with a variety of Ganeti versions for testing. Currently it only supports 2.4.X, 2.5.X, 2.6.x and any git tagged releases. To switch between the versions do the following:

  1. edit modules/ganeti_tutorial/node{1-3}.pp
  2. if using git, change git to true
  3. change ganeti_version to desired version
  4. redeploy the VMs (destroy, up)

Node Operating System

By default we use Ubuntu 11.10 for our node OS but we do have support for the following operating systems. Just run the vagrant commands from inside the appropriate folder.

  • Debian 6 (debian-6)
  • Debian 7 (debian-7)
  • CentOS 6 (centos-6)
  • CentOS 5 (work in progress)
  • Ubuntu 12.10 (work in progress)