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Merge pull request #2 from ashleyprimo/v1.2.0-dev
Mini Refactor: * Allows metrics to be served on a separate socket/webserver endpoint * `address` changes to `host` * Code Tidy
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,22 +1,54 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "net/http" | ||
| "time" | ||
|
|
||
| log "github.com/sirupsen/logrus" | ||
|
|
||
| "github.com/prometheus/client_golang/prometheus" | ||
| "github.com/prometheus/client_golang/prometheus/promauto" | ||
| "github.com/prometheus/client_golang/prometheus/promhttp" | ||
|
|
||
| "github.com/ashleyprimo/go-qr-generator/initialize" | ||
| "github.com/ashleyprimo/go-qr-generator/initialize" | ||
| ) | ||
|
|
||
| var ( | ||
| versionExport = promauto.NewGauge( | ||
| prometheus.GaugeOpts{ | ||
| Namespace: initialize.MetricNamespace, | ||
| Name: "version", | ||
| Help: "current running version", | ||
| versionExport = promauto.NewGauge( | ||
| prometheus.GaugeOpts{ | ||
| Namespace: initialize.MetricNamespace, | ||
| Name: "version", | ||
| Help: "current running version", | ||
| ConstLabels: map[string]string{ | ||
| "version": initialize.Version, | ||
| }, | ||
| }, | ||
| ) | ||
| }, | ||
| ) | ||
| ) | ||
|
|
||
| func metrics() { | ||
| // Metrics Endpoint | ||
| if *initialize.EnableMetrics { | ||
| log.Debugf("Metrics Endpoint Enabled") | ||
| if *initialize.MetricServer { | ||
| log.Debugf("Metrics Server Enabled") | ||
| log.Infof("Listening for metrics requests on %s:%s", *initialize.MetricServerHost, *initialize.MetricServerPort) | ||
| go func() { | ||
| mux := http.NewServeMux() | ||
| mux.Handle("/metrics", promhttp.Handler()) | ||
| srv := &http.Server{ | ||
| Addr: fmt.Sprintf("%s:%s", *initialize.MetricServerHost, *initialize.MetricServerPort), | ||
| Handler: mux, | ||
| ReadTimeout: 30 * time.Second, | ||
| WriteTimeout: 30 * time.Second, | ||
| IdleTimeout: 3 * time.Minute, | ||
| } | ||
| log.Fatalf("Failed to start web server: %s", srv.ListenAndServe()) | ||
| }() | ||
|
|
||
| } else { | ||
| http.Handle("/metrics", promhttp.Handler()) | ||
| } | ||
| } | ||
| } |
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