operator: make port configurable

add option to change the listening port. Defaults are unchanged.

Signed-off-by: Francesco Romani <[email protected]>

main.go

@@ -59,6 +59,7 @@ import (
 )
 
 const (
+	webhookPort             = 9443
 	defaultLeaderElectionID = "0e2a6bd3.openshift-kni.io" // autogenerated
 )
 
@@ -88,6 +89,7 @@ type RenderParams struct {
 }
 
 func main() {
+	var webhookPort int
 	var metricsAddr string
 	var enableLeaderElection bool
 	var probeAddr string
@@ -118,6 +120,7 @@ func main() {
 	flag.BoolVar(&showVersion, "version", false, "outputs the version and exit")
 	flag.BoolVar(&enableScheduler, "enable-scheduler", false, "enable support for the NUMAResourcesScheduler object")
 	flag.BoolVar(&enableWebhooks, "enable-webhooks", false, "enable conversion webhooks")
+	flag.IntVar(&webhookPort, "webhook-port", webhookPort, "The port the operator webhook should listen to.")
 	flag.BoolVar(&enableMetrics, "enable-metrics", false, "enable metrics server")
 	flag.BoolVar(&enableHTTP2, "enable-http2", false, "If HTTP/2 should be enabled for the webhook servers.")
 
@@ -197,7 +200,7 @@ func main() {
 		Namespace:               namespace,
 		Scheme:                  scheme,
 		MetricsBindAddress:      metricsAddr,
-		Port:                    9443,
+		Port:                    webhookPort,
 		HealthProbeBindAddress:  probeAddr,
 		LeaderElection:          enableLeaderElection,
 		LeaderElectionNamespace: namespace,