PLT-4357 adding performance monitoring (#4622)

* WIP

* WIP

* Adding metrics collection

* updating vendor packages

* Adding metrics to config

* Adding admin console page for perf monitoring

* Updating glide

* switching to tylerb/graceful

1 files changed, 30 insertions, 0 deletions

diff --git a/vendor/github.com/prometheus/client_golang/examples/simple/main.go b/vendor/github.com/prometheus/client_golang/examples/simple/main.go
new file mode 100644
index 000000000..19620d2b3
--- /dev/null
+++ b/vendor/github.com/prometheus/client_golang/examples/simple/main.go
@@ -0,0 +1,30 @@
+// Copyright 2015 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// A minimal example of how to include Prometheus instrumentation.
+package main
+
+import (
+	"flag"
+	"net/http"
+
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+var addr = flag.String("listen-address", ":8080", "The address to listen on for HTTP requests.")
+
+func main() {
+	flag.Parse()
+	http.Handle("/metrics", prometheus.Handler())
+	http.ListenAndServe(*addr, nil)
+}