Adding parameter for externalTrafficPolicy in internal controller service spec

charts/ingress-nginx/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: ingress-nginx
-version: 2.14.0
+version: 2.15.0
 appVersion: 0.35.0
 home: https://github.com/kubernetes/ingress-nginx
 description: Ingress controller for Kubernetes using NGINX as a reverse proxy and load balancer

charts/ingress-nginx/templates/controller-service-internal.yaml

@@ -15,6 +15,9 @@ metadata:
   name: {{ include "ingress-nginx.controller.fullname" . }}-internal
 spec:
   type: "{{ .Values.controller.service.type }}"
+{{- if .Values.controller.service.internal.externalTrafficPolicy }}
+  externalTrafficPolicy: {{ .Values.controller.service.internal.externalTrafficPolicy }}
+{{- end }}
   ports:
   {{- $setNodePorts := (or (eq .Values.controller.service.type "NodePort") (eq .Values.controller.service.type "LoadBalancer")) }}
   {{- if .Values.controller.service.enableHttp }}

charts/ingress-nginx/values.yaml

@@ -349,6 +349,11 @@ controller:
       enabled: false
       annotations: {}
 
+      ## Set external traffic policy to: "Local" to preserve source IP on
+      ## providers supporting it
+      ## Ref: https://kubernetes.io/docs/tutorials/services/source-ip/#source-ip-for-services-with-typeloadbalancer
+      # externalTrafficPolicy: ""
+
   extraContainers: []
   ## Additional containers to be added to the controller pod.
   ## See https://github.com/lemonldap-ng-controller/lemonldap-ng-controller as example.