fix(vagrant): switch vm to 2gb of memory

Author: Gabriel Monroy

Vagrantfile

@@ -11,8 +11,9 @@ Vagrant.configure("2") do |config|
     override.vm.box_url = "http://storage.core-os.net/coreos/amd64-usr/alpha/coreos_production_vagrant_vmware_fusion.box"
   end
 
-  # Fix docker not being able to resolve private registry in VirtualBox
   config.vm.provider :virtualbox do |vb, override|
+    vb.customize ["modifyvm", :id, "--memory", "2048"]
+    # Fix docker not being able to resolve private registry in VirtualBox
     vb.customize ["modifyvm", :id, "--natdnshostresolver1", "on"]
     vb.customize ["modifyvm", :id, "--natdnsproxy1", "on"]
   end