From c2b56c09b80c87164781c2f878a29fe3759e0e95 Mon Sep 17 00:00:00 2001
From: Cedric Lewe <43417046+QuByte-Zer0@users.noreply.github.com>
Date: Thu, 9 Apr 2020 02:32:36 +0200
Subject: [PATCH] Metrics: add errors

---
 server/metrics.go | 7 +++++++
 server/server.go  | 2 ++
 2 files changed, 9 insertions(+)

diff --git a/server/metrics.go b/server/metrics.go
index 2a13f48..1aca9ea 100644
--- a/server/metrics.go
+++ b/server/metrics.go
@@ -12,6 +12,13 @@ var (
 		},
 		[]string{"route"},
 	)
+	metricsErrors = prometheus.NewCounterVec(
+		prometheus.CounterOpts{
+			Name: "qumine_ingress_errors_total",
+			Help: "The total error count",
+		},
+		[]string{"error"},
+	)
 	metricsBytes = prometheus.NewCounterVec(
 		prometheus.CounterOpts{
 			Name: "qumine_ingress_bytes_total",
diff --git a/server/server.go b/server/server.go
index 449b218..b3d9e86 100644
--- a/server/server.go
+++ b/server/server.go
@@ -141,6 +141,7 @@ func (server *Server) findAndConnectBackend(context context.Context, client net.
 	route, err := ReadRoute(hostname)
 	if err != nil {
 		logrus.WithError(err).Warn("no matching route found")
+		metricsConnections.With(prometheus.Labels{"error": "no route found"}).Inc()
 		return
 	}
 	logrus.WithFields(logrus.Fields{
@@ -154,6 +155,7 @@ func (server *Server) findAndConnectBackend(context context.Context, client net.
 			"client": client.RemoteAddr(),
 			"route":  route,
 		}).Error("connecting to upstream failed")
+		metricsConnections.With(prometheus.Labels{"error": "coonection failed"}).Inc()
 		return
 	}
 	defer metricsConnections.With(prometheus.Labels{"route": route}).Dec()