Add pprof-bind-address flag support

Add optional pprof profiling endpoint configuration via
--pprof-bind-address flag, matching neutron-operator implementation.
Disabled by default (empty string).

Signed-off-by: Martin Schuppert <mschuppert@redhat.com>

Author: stuggi

cmd/main.go

@@ -102,6 +102,7 @@ func main() {
 	var webhookCertPath, webhookCertName, webhookCertKey string
 	var enableLeaderElection bool
 	var probeAddr string
+	var pprofBindAddress string
 	var secureMetrics bool
 	var enableHTTP2 bool
 	var tlsOpts []func(*tls.Config)
@@ -120,6 +121,7 @@ func main() {
 		"The directory that contains the metrics server certificate.")
 	flag.StringVar(&metricsCertName, "metrics-cert-name", "tls.crt", "The name of the metrics server certificate file.")
 	flag.StringVar(&metricsCertKey, "metrics-cert-key", "tls.key", "The name of the metrics server key file.")
+	flag.StringVar(&pprofBindAddress, "pprof-bind-address", "", "The address the pprof endpoint binds to. Set to empty to disable pprof.")
 	flag.BoolVar(&enableHTTP2, "enable-http2", false,
 		"If set, HTTP/2 will be enabled for the metrics and webhook servers")
 	opts := zap.Options{
@@ -235,6 +237,7 @@ func main() {
 		Metrics:                metricsServerOptions,
 		WebhookServer:          webhookServer,
 		HealthProbeBindAddress: probeAddr,
+		PprofBindAddress:       pprofBindAddress,
 		LeaderElection:         enableLeaderElection,
 		LeaderElectionID:       "fa1814a2.openstack.org",
 	}