@Ingo_Richtsmeier thanks for your direction. i have tried to enable the sticky session to nginx ingress controller. following snippet i have added to my _ingress.yaml file. still issue not resolved. did i missing anything
annotations:
kubernetes.io/ingress.class: nginx
nginx.ingress.kubernetes.io/rewrite-target: /helloworld/$2
nginx.ingress.kubernetes.io/affinity: "cookie"
nginx.ingress.kubernetes.io/session-cookie-name: "route"
nginx.ingress.kubernetes.io/session-cookie-expires: "172800"
nginx.ingress.kubernetes.io/session-cookie-max-age: "172800"
path: /helloworld(/|$)(.*)