Vagrant Ganeti Provider

This is a Vagrant 1.2+ plugin that adds an Ganeti provider to Vagrant, allowing Vagrant to control and provision machines in Ganeti.

NOTE: This plugin requires Vagrant 1.2

NOTE: This project is work in progress, there are lot of things which might not work yet.

Installation

Building the Gem from source:

$  gem build 'vagrant-ganeti.gemspec'

Alternatively you could, Install using standard Vagrant 1.1+ plugin installation methods. After installing, vagrant up and specify the ganeti provider. An example is shown below.

$  vagrant plugin install vagrant-ganeti

Usage

$ vagrant up --provider=ganeti
...

Of course prior to doing this, you'll need to obtain an Ganeti-compatible box file for Vagrant.

##Quick Start

After installing the plugin (instructions above), the quickest way to get started is to actually use a "ganeti" Ganeti box and specify all the details manually within a config.vm.provider block. So first, add the "ganeti" box using any name you want:

$ vagrant box add ganeti https://raw.github.com/osuosl/vagrant-plugin-ganeti/master/example_box/ganeti.box ... And then make a Vagrantfile that looks like the following, filling in your information where necessary.

Vagrant.configure("2") do |config|
  config.vm.box = "ganeti"
  config.vm.provider :ganeti do |ganeti, override|
    ganeti.rapi_user = "#rapiuser"
    ganeti.rapi_pass = "#password"
    ganeti.cluster = "https://10.10.10.10:5080/"
    ganeti.os_type = "image+debian-squeeze"
    ganeti.instance_name = "gimager3.organisation.org"
    ganeti.disks =[{"size"=>"8000"}] 
    ganeti.disk_template = "plain"
    override.ssh.username = "root"
  end
end

And then run vagrant up --provider=ganeti.

This will start an instance in the Ganeti Cluster.

Other overridable settings include

    override.ssh.username = "User Name"
    override.ssh.private_key_path = "Path to your private key"

If you have issues with SSH connecting, make sure that the instances are being launched with a security group that allows SSH access.

Box Format

Every provider in Vagrant must introduce a custom box format. This provider introduces ganeti boxes. You can view an example box in the example_box/ directory. That directory also contains instructions on how to build a box.

The box format is basically just the required metadata.json file along with a Vagrantfile that does default settings for the provider-specific configuration for this provider.

Configuration

This provider exposes quite a few provider-specific configuration options:

Required Parameters

• rapi_user - The username for accessing the RAPI.
• rapi_pass - The password for the corrensponding user.
• cluster - The host address of the master Ganeti Node.
• instance_name - The name of the instance.

Optional Parameters

• os_type - The OS that needs to be booted up. Note : This will override the default box .
• mode - Mode of creation. Defaults to create.
• pnode - The primary node where instance needs to be created. Defaults to None.
• snode - The Secondary node in case of drbd is used. Defaults to None.
• nics - Network configuration.
  • List of (Dictionary with keys of (OneOf bridge, name, ip, vlan, mac, link, mode, network) and values of (None or String)
• disks - The Size of the Disks . Defaults to 8 G .
  • List of (Dictionary with keys of (OneOf name, vg, adopt, spindles, mode, provider, metavg, size) and values of (NonEmptyString or Integer)
• disk_template - The type of the disk template. Defaults to plain .
• iallocator - The name of the iallocator policy. Defaults to cluster default .
• memory - The size of the memory. Defaults to plain .
• vcpus - The No of VCPUS . Defaults to None .
• ip_check - Either 'true' or 'false' (Without quotes). Defaults to true .
• name_check - Either 'true' or 'false' (Without quotes) . Defaults to true .

More about Ganeti Instance parameters can be found here

####hvparams settings

• boot_order - Defaults to None .
• cdrom_image_path - Defaults to None .
• nic_type - Defaults to None .
• disk_type - Defaults to None .
• cpu_type - Defaults to None .
• kernel_path - Defaults to None .
• kernel_args - Defaults to None .
• initrd_path - Defaults to None .
• root_path - Defaults to None .
• serial_console - Defaults to None .
• kvm_flag - Defaults to None .

More about hvparam settings can be found here

Networks

Networking features in the form of config.vm.network are not supported with vagrant-ganeti, currently. If any of these are specified, Vagrant will emit a warning, but will otherwise boot the Ganeti machine.

Synced Folders

There is minimal support for synced folders. Upon vagrant provision, the Ganeti provider will use rsync (if available) to uni-directionally sync the folder to the remote machine over SSH.

This is good enough for all built-in Vagrant provisioners (shell, chef, and puppet) to work!

Advanced Examples

Having Multiple Disks

Vagrant.configure("2") do |config|
  config.vm.box = "ganeti"
  config.vm.provider :ganeti do |ganeti, override|
    .....
    ganeti.disks =[{"size"=>"8000"},{"size"=>"16000"}] 
    .....
  end
end

This creates two disks in the instance one of 8G and another of 16G.

Having Multiple Nics

Vagrant.configure("2") do |config|
  config.vm.box = "ganeti"
  config.vm.provider :ganeti do |ganeti, override|
    .....
    ganeti.nics =[{"ip"=> "198.51.100.4"}, {"link"=> "br0" ,"ip"=> "10.10.100.4"}, {"ip"=> "10.11.100.4"}]
    .....
  end
end

This creates 3 nic interfaces having ip addresses 198.51.100.4 , 10.10.100.4 and 10.11.100.4 . Configuration parameter nics must be List of - Dictionary with keys of (OneOf bridge, name, ip, vlan, mac, link, mode, network)

TODO

1. Add more Features supported by RAPI

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request

About the Project

Author : Ahmed Shabib This project is done as part of GSOC -2013 ,and is mentored by Lance Albertson(Ramereth) and Ken Lett