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sreExporter
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sre index handlerIndex

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master
dustoair 3 years ago
parent 2e58d7e19e
commit 4aa8ffc5d1
1 changed files with 14 additions and 3 deletions
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17
main.go
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@ -66,6 +66,9 @@ var (
Buckets: prometheus.ExponentialBuckets(1, 2, 20), // 初始值为1，指数为2增长，20个取值 Buckets: prometheus.ExponentialBuckets(1, 2, 20), // 初始值为1，指数为2增长，20个取值
}, []string{"request_time"}) }, []string{"request_time"})
// 不同的桶根据具体情况而定 // 不同的桶根据具体情况而定
metricsPath = flag.String("web.telemetry-path", "/metrics",
"Path under which to expose metrics")
) )
func init() { func init() {
@ -80,7 +83,7 @@ func init() {
func main() { func main() {
flag.Parse() flag.Parse()
r := mux.NewRouter() r := mux.NewRouter()
r.HandleFunc("/", handler) r.HandleFunc("/", handlerIndex)
r.Use(metricsMiddleware) r.Use(metricsMiddleware)
r.Handle("/metrics", promhttp.HandlerFor( r.Handle("/metrics", promhttp.HandlerFor(
@ -107,10 +110,18 @@ func metricsMiddleware(next http.Handler) http.Handler {
}) })
} }
func handler(w http.ResponseWriter, r *http.Request) { func handlerIndex(w http.ResponseWriter, r *http.Request) {
x := rand.Intn(3) x := rand.Intn(3)
time.Sleep(time.Duration(x) * time.Second) time.Sleep(time.Duration(x) * time.Second)
_, _ = w.Write([]byte("handler response")) //_, _ = w.Write([]byte("handler response"))
_, _ = w.Write([]byte(`<html>
<head><title>SRE Promethus Exporter</title></head>
<body>
<h1>SRE Promethus Exporter</h1>
<p><a href='` + *metricsPath + `'>Metrics</a></p>
</body>
</html>`))
fmt.Println("print handler") fmt.Println("print handler")
} }

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