Use per device boot order when boot_order is set

This allows for network boot with any of the NICs that are defined instead of
only from the primary NIC.

lib/vagrant-libvirt/action/create_network_interfaces.rb

@@ -20,6 +20,7 @@ module VagrantPlugins
 	        config = env[:machine].provider_config
 	        @nic_model_type = config.nic_model_type
           @nic_adapter_count = config.nic_adapter_count
+          @boot_order = config.boot_order
           @app = app
         end
 

lib/vagrant-libvirt/templates/domain.xml.erb

@@ -28,12 +28,7 @@
       <% end %>
     <% end %>
     <% if @boot_order.count >= 1 %>
-      <% @boot_order.each do |b| %>
-        <boot dev='<%= b %>'/>
-      <% end %> 
       <bootmenu enable='yes'/>
-    <% else %>
-      <boot dev='hd' />
     <% end %>
     <kernel><%= @kernel %></kernel>
     <initrd><%= @initrd %></initrd>
@@ -51,6 +46,11 @@
       <source file='<%= @domain_volume_path %>'/>
       <%# we need to ensure a unique target dev -%>
       <target dev='vda' bus='<%= @disk_bus %>'/>
+      <% if @boot_order[0] == 'hd' %>
+        <boot order='1'/>
+      <% elsif @boot_order.count >= 1 %> 
+        <boot order='9'/>
+      <% end %>
     </disk>
 <%# additional disks -%>
 <% @disks.each do |d| -%>

lib/vagrant-libvirt/templates/interface.xml.erb

@@ -6,5 +6,10 @@
   <target dev='vnet<%= @iface_number %>'/>
   <alias name='net<%= @iface_number %>'/>
   <model type='<%=@model_type%>'/>
+  <% if @boot_order[0] == 'network' %>
+    <boot order='<%= @iface_number+1 %>'/>
+  <% elsif @boot_order.include?('network') %> 
+    <boot order='<%= @iface_number+2 %>'/>
+  <% end %>
 </interface>