mirror of https://github.com/status-im/go-waku.git
74 lines
1.6 KiB
Go
74 lines
1.6 KiB
Go
package metrics
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import (
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"context"
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"fmt"
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"net/http"
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"contrib.go.opencensus.io/exporter/prometheus"
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logging "github.com/ipfs/go-log"
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"github.com/status-im/go-waku/waku/v2/metrics"
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"go.opencensus.io/plugin/ochttp"
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"go.opencensus.io/plugin/runmetrics"
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"go.opencensus.io/stats/view"
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)
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var log = logging.Logger("metrics")
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// Server runs and controls a HTTP pprof interface.
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type Server struct {
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server *http.Server
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}
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func NewMetricsServer(address string, port int) *Server {
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_ = runmetrics.Enable(runmetrics.RunMetricOptions{
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EnableCPU: true,
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EnableMemory: true,
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})
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pe, err := prometheus.NewExporter(prometheus.Options{
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Namespace: "wakunode",
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})
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if err != nil {
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log.Fatalf("Failed to create the Prometheus stats exporter: %v", err)
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}
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view.RegisterExporter(pe)
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log.Info(fmt.Sprintf("Starting server at %s:%d", address, port))
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mux := http.NewServeMux()
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mux.Handle("/metrics", pe)
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h := &ochttp.Handler{Handler: mux}
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// Register the views
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if err := view.Register(
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metrics.MessageTypeView,
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metrics.FilterSubscriptionsView,
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metrics.StoreErrorTypesView,
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metrics.StoreMessageTypeView,
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); err != nil {
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log.Fatalf("Failed to register views: %v", err)
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}
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p := Server{
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server: &http.Server{
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Addr: fmt.Sprintf("%s:%d", address, port),
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Handler: h,
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},
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}
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return &p
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}
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// Listen starts the HTTP server in the background.
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func (p *Server) Start() {
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log.Info("Server stopped ", p.server.ListenAndServe())
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}
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func (p *Server) Stop(ctx context.Context) {
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err := p.server.Shutdown(ctx)
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if err != nil {
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log.Error("Server shutdown err", err)
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}
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}
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