Add Swarm limits

Signed-off-by: Alex Ellis <alexellis2@gmail.com>

gateway/requests/prometheus.go

@@ -0,0 +1,23 @@
+// Copyright (c) Alex Ellis 2017. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+package requests
+
+// PrometheusInnerAlertLabel PrometheusInnerAlertLabel
+type PrometheusInnerAlertLabel struct {
+	AlertName    string `json:"alertname"`
+	FunctionName string `json:"function_name"`
+}
+
+// PrometheusInnerAlert PrometheusInnerAlert
+type PrometheusInnerAlert struct {
+	Status string                    `json:"status"`
+	Labels PrometheusInnerAlertLabel `json:"labels"`
+}
+
+// PrometheusAlert as produced by AlertManager
+type PrometheusAlert struct {
+	Status   string                 `json:"status"`
+	Receiver string                 `json:"receiver"`
+	Alerts   []PrometheusInnerAlert `json:"alerts"`
+}