Vendor the external cookbooks

Knife-Zero doesn't include Berkshelf support, so vendoring everything in
the repo is convenient again

cookbooks/elasticsearch/libraries/resource_user.rb

@@ -0,0 +1,19 @@
+# Chef Resource for declaring a user and group for Elasticsearch
+class ElasticsearchCookbook::UserResource < Chef::Resource::LWRPBase
+  resource_name :elasticsearch_user
+  provides :elasticsearch_user
+
+  actions(:create, :remove)
+  default_action :create
+
+  # this is what helps the various resources find each other
+  attribute(:instance_name, kind_of: String, default: nil)
+
+  attribute(:username, kind_of: String, name_attribute: true) # default to resource name
+  attribute(:uid, kind_of: Integer)
+  attribute(:shell, kind_of: String, default: '/bin/bash')
+  attribute(:comment, kind_of: String, default: 'Elasticsearch User')
+
+  attribute(:groupname, kind_of: String, name_attribute: true) # default to resource name
+  attribute(:gid, kind_of: Integer)
+end