Add libvirt provider for vagrant

typo. thanks @fodoj
add short desc and link to docs

Vagrantfile

@@ -12,6 +12,7 @@ if ARGV.first == "up" && ENV['USING_KUBE_SCRIPTS'] != 'true'
 Calling 'vagrant up' directly is not supported.  Instead, please run the following:
 
   export KUBERNETES_PROVIDER=vagrant
+  export VAGRANT_DEFAULT_PROVIDER=providername
   ./cluster/kube-up.sh
 END
 end
@@ -62,6 +63,12 @@ $kube_provider_boxes = {
       :box_url => 'http://opscode-vm-bento.s3.amazonaws.com/vagrant/virtualbox/opscode_fedora-20_chef-provisionerless.box'
     }
   },
+  :libvirt => {
+    'fedora' => {
+      :box_name => 'kube-fedora20',
+      :box_url => 'http://citozin.com/opscode_fedora-20_chef-provisionerless_libvirt.box'
+    }
+  },
   :vmware_desktop => {
     'fedora' => {
       :box_name => 'kube-fedora20',
@@ -123,6 +130,15 @@ Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
       v.vmx['numvcpus'] = $vm_cpus
     end
 
+    # configure libvirt provider
+    config.vm.provider :libvirt do |v, override|
+      setvmboxandurl(override, :libvirt)
+      v.memory = vm_mem
+      v.cpus = $vm_cpus
+      v.nested = true
+      v.volume_cache = 'none'
+    end
+
     # Then try VMWare Workstation
     config.vm.provider :vmware_workstation do |v, override|
       setvmboxandurl(override, :vmware_desktop)

docs/getting-started-guides/vagrant.md

@@ -9,6 +9,7 @@ Running kubernetes with Vagrant (and VirtualBox) is an easy way to run/test/deve
    2. [VMWare Fusion](https://www.vmware.com/products/fusion/) version 5 or greater as well as the appropriate [Vagrant VMWare Fusion provider](https://www.vagrantup.com/vmware)
    3. [VMWare Workstation](https://www.vmware.com/products/workstation/) version 9 or greater as well as the [Vagrant VMWare Workstation provider](https://www.vagrantup.com/vmware)
    4. [Parallels Desktop](https://www.parallels.com/products/desktop/) version 9 or greater as well as the [Vagrant Parallels provider](https://parallels.github.io/vagrant-parallels/)
+   5. libvirt with KVM and enable support of hardware virtualisation. [Vagrant-libvirt](https://github.com/pradels/vagrant-libvirt). For fedora provided official rpm, and possible to use ```yum install vagrant-libvirt```
 
 ### Setup