I'm write helm chart for deploy web service to eks. I need to deploy Load balancer for pods running web application. I'm create service that deploy Network Load Balancer

apiVersion: v1
kind: Service
metadata:
  name: my-service
  annotations:
    service.beta.kubernetes.io/aws-load-balancer-type: "nlb"
spec:
  selector:
    app: "MyApp"
  type: LoadBalancer
  ports:
  - name: http
    port: {{ .Values.app.port }}
    protocol: TCP
    targetPort: {{ .Values.app.port }}

I'm need sticky session for this application.

I'd tried to add sessionAffinity: ClientIP to chart, but this failed. LoadBalancer wont to be created.

Other way LoadBalancer created, but sticky session in Target group still disabled.

What are correct way to configure sticky session for NLB via helm chart?