Added LISTEN_ADDRESS as env to set metrics endpoint

README.md

@@ -237,10 +237,12 @@ helm install kubewatch robusta/kubewatch --set='rbac.create=true,slack.channel=#
 ```
 
 #### Metrics
-`kubewatch` runs a Prometheus metrics endpoint at `/metrics` on port `2112` that can be used to monitor health and the performance of `kubewatch`. 
+`kubewatch` runs a Prometheus metrics endpoint at `/metrics` on port `2112` by default. This endpoint can be used to monitor health and the performance of `kubewatch`. 
 
 The `kubewatch_events_total` metric can help track the total number of Kubernetes events, categorized by resource type (e.g., `Pods`, `Deployments`) and event type (e.g., `Create`, `Delete`).
 
+You can change the default port (`2112`) on which the metrics server listens by setting the `LISTEN_ADDRESS` environment variable. 
+
 ### Local Installation
 #### Using go package installer:
 

pkg/client/run.go

@@ -18,7 +18,7 @@ package client
 
 import (
 	"net/http"
-
+	"os"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 
 	"github.com/bitnami-labs/kubewatch/config"
@@ -39,13 +39,16 @@ import (
 
 // Run runs the event loop processing with given handler
 func Run(conf *config.Config) {
-	metricsPort := ":2112"
+	listenAddress := os.Getenv("LISTEN_ADDRESS")
+	if listenAddress == "" {
+		listenAddress = ":2112"
+	}
 
 	go func() {
 		http.Handle("/metrics", promhttp.Handler())
-		logrus.Infof("Starting metrics server on port %s", metricsPort)
-		if err := http.ListenAndServe(metricsPort, nil); err != nil {
-			logrus.Errorf("Error starting metrics server on port %s: %v", metricsPort, err)
+		logrus.Infof("Starting metrics server on port %s", listenAddress)
+		if err := http.ListenAndServe(listenAddress, nil); err != nil {
+			logrus.Errorf("Error starting metrics server on port %s: %v", listenAddress, err)
 		}
 	}()