feat: add --pprof-bind-address flag for runtime profiling

README.md

@@ -451,5 +451,17 @@ If you are interested in contributing to Authorino, please refer to the [Develop
 Join us on the [#kuadrant](https://kubernetes.slack.com/archives/C05J0D0V525) channel in the Kubernetes Slack workspace, for live discussions about the roadmap and more.
 
 
+## Profiling
+
+Authorino supports runtime profiling via Go's built-in [pprof](https://pkg.go.dev/net/http/pprof) tooling. Enabled by default on `:8082`.
+
+Connect to a running instance:
+
+```bash
+kubectl port-forward -n <namespace> deploy/authorino 8082:8082
+go tool pprof -http=:8080 http://localhost:8082/debug/pprof/profile?seconds=30
+go tool pprof -http=:8080 http://localhost:8082/debug/pprof/heap
+```
+
 ## License
 [![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2FKuadrant%2Fauthorino.svg?type=large)](https://app.fossa.com/projects/git%2Bgithub.com%2FKuadrant%2Fauthorino?ref=badge_large)

main.go

@@ -104,6 +104,7 @@ type commonServerOptions struct {
 	log             logOptions
 	metricsAddr     string
 	healthProbeAddr string
+	pprofAddr       string
 	telemetry       telemetryOptions
 }
 
@@ -224,6 +225,7 @@ func registerCommonServerOptions(cmd *cobra.Command, opts *commonServerOptions)
 	cmd.PersistentFlags().StringVar(&opts.log.mode, "log-mode", utils.EnvVar("LOG_MODE", "production"), "Log mode")
 	cmd.PersistentFlags().StringVar(&opts.metricsAddr, "metrics-addr", ":8080", "The network address the metrics endpoint binds to")
 	cmd.PersistentFlags().StringVar(&opts.healthProbeAddr, "health-probe-addr", ":8081", "The network address the health probe endpoint binds to")
+	cmd.PersistentFlags().StringVar(&opts.pprofAddr, "pprof-bind-address", ":8082", "The address the pprof endpoint binds to")
 	cmd.PersistentFlags().StringVar(&opts.telemetry.tracingServiceEndpoint, "tracing-service-endpoint", "", "Endpoint URL of the tracing exporter service - use either 'rpc://' or 'http://' scheme")
 	cmd.PersistentFlags().BoolVar(&opts.telemetry.tracingServiceInsecure, "tracing-service-insecure", false, "Disable TLS for the tracing service connection")
 	cmd.PersistentFlags().StringArrayVar(&opts.telemetry.tracingServiceTags, "tracing-service-tag", []string{}, "Fixed key=value tag to add to emitted traces")
@@ -266,6 +268,7 @@ func runAuthorizationServer(cmd *cobra.Command, _ []string) {
 		WebhookServer:          webhook.NewServer(webhook.Options{Port: opts.webhookServicePort}),
 		Metrics:                metricsserver.Options{BindAddress: opts.metricsAddr},
 		HealthProbeBindAddress: opts.healthProbeAddr,
+		PprofBindAddress:       opts.pprofAddr,
 		LeaderElection:         false,
 	}
 	if opts.watchNamespace != "" {
@@ -369,6 +372,7 @@ func runWebhookServer(cmd *cobra.Command, _ []string) {
 		Scheme:                 scheme,
 		Metrics:                metricsserver.Options{BindAddress: opts.metricsAddr},
 		HealthProbeBindAddress: opts.healthProbeAddr,
+		PprofBindAddress:       opts.pprofAddr,
 		LeaderElection:         true,
 		LeaderElectionID:       fmt.Sprintf("670aa2de.%s", leaderElectionIDSuffix),
 		WebhookServer:          webhook.NewServer(webhook.Options{Port: opts.port}),