    # File lib/fog/ecloud/models/compute/server.rb, line 160
            def create_rnat(options)
              options[:host_ip_href] ||= ips.first.href
              options[:uri] = "/cloudapi/ecloud/rnats/environments/#{environment_id}/action/createAssociation"
              data = connection.rnat_associations_create_device(options).body
              rnat = Fog::Compute::Ecloud::Associations.new(:connection => connection, :href => data[:href])[0]
            end