feat: Add trafficDistribution field to service

* Kubernetes docs: https://kubernetes.io/docs/concepts/services-networking/service/\#traffic-distribution

Signed-off-by: younsl <[email protected]>

Author: younsl

helm/oauth2-proxy/templates/service.yaml

@@ -63,3 +63,6 @@ spec:
   ipFamilies: {{ toYaml .Values.service.ipDualStack.ipFamilies | nindent 4 }}
   ipFamilyPolicy: {{ .Values.service.ipDualStack.ipFamilyPolicy }}
 {{- end }}
+{{- if .Values.service.trafficDistribution }}
+  trafficDistribution: {{ .Values.service.trafficDistribution }}
+{{- end }}

helm/oauth2-proxy/values.yaml

@@ -161,6 +161,9 @@ service:
     enabled: false
     ipFamilies: ["IPv6", "IPv4"]
     ipFamilyPolicy: "PreferDualStack"
+  # Configure traffic distribution for the service
+  # Ref: https://kubernetes.io/docs/concepts/services-networking/service/#traffic-distribution
+  trafficDistribution: ""
 
 ## Create or use ServiceAccount
 serviceAccount: