# File lib/fog/compute/ecloud/models/server.rb, line 149
        def create_rnat(options)
          options[:host_ip_href] ||= ips.first.href
          options[:uri] = "#{service.base_path}/rnats/environments/#{environment_id}/action/createAssociation"
          data = service.rnat_associations_create_device(options).body
          Fog::Compute::Ecloud::Associations.new(:service => service, :href => data[:href])[0]
        end