GanetiInVagrant.md

[TOC]

# 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](https://github.com/ramereth/vagrant-ganeti) 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](https://www.virtualbox.org/wiki/Downloads).
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](http://vagrantup.com/docs/index.html).

## 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)