Make local webhook port configurable

Will be helpful when running multiple operators locally

Author: karelyatin

Makefile

@@ -389,6 +389,7 @@ SKIP_CERT ?=false
 run-with-webhook: export METRICS_PORT?=24600
 run-with-webhook: export HEALTH_PORT?=24601
 run-with-webhook: export PPROF_PORT?=8082
+run-with-webhook: export WEBHOOK_PORT?=9444
 run-with-webhook: manifests generate fmt vet ## Run a controller from your host.
 	/bin/bash hack/clean_local_webhook.sh
 	/bin/bash hack/run_with_local_webhook.sh

hack/run_with_local_webhook.sh

@@ -16,7 +16,7 @@ SKIP_CERT=${SKIP_CERT:-false}
 CRC_IP=${CRC_IP:-$(/sbin/ip -o -4 addr list crc | awk '{print $4}' | cut -d/ -f1)}
 FIREWALL_ZONE=${FIREWALL_ZONE:-"libvirt"}
 SKIP_FIREWALL=${SKIP_FIREWALL:-false}
-WEBHOOK_PORT=9444
+WEBHOOK_PORT=${WEBHOOK_PORT:-${WEBHOOK_PORT}}
 
 if [ "$SKIP_FIREWALL" = false ] ; then
     #Open ${WEBHOOK_PORT}
@@ -528,4 +528,4 @@ else
     oc scale --replicas=0 -n openstack-operators deploy/nova-operator-controller-manager
 fi
 
-go run ./main.go -metrics-bind-address ":${METRICS_PORT}" -health-probe-bind-address ":${HEALTH_PORT}" -pprof-bind-address ":${PPROF_PORT}"
+go run ./main.go -metrics-bind-address ":${METRICS_PORT}" -health-probe-bind-address ":${HEALTH_PORT}" -pprof-bind-address ":${PPROF_PORT}" -webhook-bind-address "${WEBHOOK_PORT}"

main.go

@@ -81,11 +81,13 @@ func main() {
 	var enableLeaderElection bool
 	var probeAddr string
 	var pprofBindAddress string
+	var webhookPort int
 	var enableHTTP2 bool
 	flag.BoolVar(&enableHTTP2, "enable-http2", enableHTTP2, "If HTTP/2 should be enabled for the metrics and webhook servers.")
 	flag.StringVar(&metricsAddr, "metrics-bind-address", ":24600", "The address the metric endpoint binds to.")
 	flag.StringVar(&probeAddr, "health-probe-bind-address", ":24601", "The address the probe endpoint binds to.")
 	flag.StringVar(&pprofBindAddress, "pprof-bind-address", "", "The address the pprof endpoint binds to. Set to empty to disable pprof.")
+	flag.IntVar(&webhookPort, "webhook-bind-address", 9444, "The port the webhook server binds to.")
 	flag.BoolVar(&enableLeaderElection, "leader-elect", false,
 		"Enable leader election for controller manager. "+
 			"Enabling this will ensure there is only one active controller manager.")
@@ -116,7 +118,7 @@ func main() {
 		PprofBindAddress:       pprofBindAddress,
 		WebhookServer: webhook.NewServer(
 			webhook.Options{
-				Port:    9444,
+				Port:    webhookPort,
 				TLSOpts: []func(config *tls.Config){disableHTTP2},
 			}),
 	}