feat: Allow to change the Admission Webhooks port (#4712)

Signed-off-by: Mathieu Cantin <103442330+mcantinqc@users.noreply.github.com>

CHANGELOG.md

@@ -69,9 +69,9 @@ To learn more about active deprecations, we recommend checking [GitHub Discussio
 - **PostgreSQL Scaler**: Replace `lib/pq` with `pgx` ([#4704](https://github.com/kedacore/keda/issues/4704))
 - **Prometheus Metrics**: Add new metric with KEDA build info ([#4647](https://github.com/kedacore/keda/issues/4647))
 - **Prometheus Scaler**: Add support for Google Managed Prometheus ([#4675](https://github.com/kedacore/keda/pull/4675))
+- **Admission Webhooks**: Allow to change the port ([#468](https://github.com/kedacore/charts/issues/468))
 - **Solace Scaler**: Add new `messageReceiveRateTarget` metric to Solace Scaler ([#4665](https://github.com/kedacore/keda/issues/4665))
 
-
 ### Fixes
 
 - **Admission Webhooks**: Allow to remove the finalizer even if the ScaledObject isn't valid ([#4396](https://github.com/kedacore/keda/issue/4396))
@@ -135,7 +135,6 @@ Here is an overview of all **stable** additions:
 - **General**: Introduce new ArangoDB Scaler ([#4000](https://github.com/kedacore/keda/issues/4000))
 - **Prometheus Metrics**: Introduce scaler activity in Prometheus metrics ([#4114](https://github.com/kedacore/keda/issues/4114))
 - **Prometheus Metrics**: Introduce scaler latency in Prometheus metrics ([#4037](https://github.com/kedacore/keda/issues/4037))
-- **Prometheus Scaler**: Extend Prometheus Scaler to support Azure managed service for Prometheus ([#4153](https://github.com/kedacore/keda/issues/4153))
 
 Here is an overview of all new **experimental** features:
 
@@ -156,6 +155,7 @@ Here is an overview of all new **experimental** features:
 - **RabbitMQ Scaler**:  Add TLS support ([#967](https://github.com/kedacore/keda/issues/967))
 - **Redis Scalers**: Add support to Redis 7 ([#4052](https://github.com/kedacore/keda/issues/4052))
 - **Selenium Grid Scaler**: Add `platformName` to selenium-grid scaler metadata structure ([#4038](https://github.com/kedacore/keda/issues/4038))
+- **Prometheus Scaler**: Extend Prometheus Scaler to support Azure managed service for Prometheus ([#4153](https://github.com/kedacore/keda/issues/4153))
 
 ### Fixes
 

cmd/webhooks/main.go

@@ -56,12 +56,14 @@ func main() {
 	var webhooksClientRequestQPS float32
 	var webhooksClientRequestBurst int
 	var certDir string
+	var webhooksPort int
 
 	pflag.StringVar(&metricsAddr, "metrics-bind-address", ":8080", "The address the metric endpoint binds to.")
 	pflag.StringVar(&probeAddr, "health-probe-bind-address", ":8081", "The address the probe endpoint binds to.")
 	pflag.Float32Var(&webhooksClientRequestQPS, "kube-api-qps", 20.0, "Set the QPS rate for throttling requests sent to the apiserver")
 	pflag.IntVar(&webhooksClientRequestBurst, "kube-api-burst", 30, "Set the burst for throttling requests sent to the apiserver")
 	pflag.StringVar(&certDir, "cert-dir", "/certs", "Webhook certificates dir to use. Defaults to /certs")
+	pflag.IntVar(&webhooksPort, "port", 9443, "Port number to serve webhooks. Defaults to 9443")
 
 	opts := zap.Options{}
 	opts.BindFlags(flag.CommandLine)
@@ -81,7 +83,7 @@ func main() {
 		LeaderElection:     false,
 		MetricsBindAddress: metricsAddr,
 		WebhookServer: webhook.NewServer(webhook.Options{
-			Port:    9443,
+			Port:    webhooksPort,
 			CertDir: certDir,
 			TLSOpts: []func(tlsConfig *tls.Config){
 				func(tlsConfig *tls.Config) {