Issue while configuring IP whitelist

Traefik Traefik v2 (latest)
,
1

Hi,
We are currently using EKS 1.21 and upgraded our ingress traefik from 1.7 to 2.5 in order to support the API changes of EKS 1.22.

We want to restrict service requests per IP like we had configured successfully in traefik 1.7 which isn't working as expected in traefik 2.5.

We followed these docs:

  1. Traefik HTTP Middlewares IPWhiteList - Traefik
  2. https://blog.knoldus.com/how-to-whitelist-ips-using-traefik-ingress-controller/

Here are out ingress and Middleware yaml files we configured:

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: csp-customer-view-tenants-whitelisted-ingress-qa
  namespace: qa
  annotations:
    kubernetes.io/ingress.class: traefik
    traefik.ingress.kubernetes.io/router.middlewares: qa-whitelist-14494227304766980796@kubernetescrd
  managedFields:
    - manager: Go-http-client
      operation: Update
      apiVersion: networking.k8s.io/v1
      time: '2023-03-05T20:43:45Z'
      fieldsType: FieldsV1
      fieldsV1:
        f:metadata:
          f:annotations:
            .: {}
            f:kubernetes.io/ingress.class: {}
        f:spec:
          f:rules: {}
    - manager: dashboard
      operation: Update
      apiVersion: extensions/v1beta1
      time: '2023-03-06T09:56:21Z'
      fieldsType: FieldsV1
      fieldsV1:
        f:metadata:
          f:annotations:
            f:traefik.ingress.kubernetes.io/router.middlewares: {}
  selfLink: >-
    /apis/networking.k8s.io/v1/namespaces/qa/ingresses/csp-customer-view-tenants-whitelisted-ingress-qa
status:
  loadBalancer: {}
spec:
  rules:
    - host: <HOSTNAME>
      http:
        paths:
          - path: <PATH>
            pathType: ImplementationSpecific
            backend:
              service:
                name: <SERVICE NAME>
                port:
                  name: http

-------------

apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
  creationTimestamp: '2023-03-05T20:43:45Z'
  generation: 9
  managedFields:
    - apiVersion: traefik.containo.us/v1alpha1
      fieldsType: FieldsV1
      fieldsV1:
        'f:spec':
          .: {}
          'f:ipWhiteList': {}
      manager: Go-http-client
      operation: Update
      time: '2023-03-05T20:43:45Z'
    - apiVersion: traefik.containo.us/v1alpha1
      fieldsType: FieldsV1
      fieldsV1:
        'f:spec':
          'f:ipWhiteList':
            'f:sourceRange': {}
      manager: dashboard
      operation: Update
      time: '2023-03-05T20:50:28Z'
  name: whitelist-14494227304766980796
  namespace: qa
  resourceVersion: '273127939'
  uid: ede28f3a-f39f-49eb-9bbd-375ea2802e34
spec:
  ipWhiteList:
    sourceRange:
      - 47.118.165.25/32