How to allow managed load balancers in kubernetes network policies?

To allow traffic from the Load Balancer created by nginx-ingress to your pods, you need to adjust your NetworkPolicy rules.

Here is an brief example:

kind: NetworkPolicy
apiVersion: networking.k8s.io/v1
metadata:
  name: np-dev-allow
  namespace: dev
spec:
  podSelector: {}
  ingress:
  - from:
    - namespaceSelector:
        matchLabels:
          purpose: monitoring
    - namespaceSelector:
        matchLabels:
          purpose: ci
    - namespaceSelector:
        matchLabels:
          environmentName: dev
    - podSelector:
        matchLabels:
          app: nginx-ingress # Adjust this label to match your nginx-ingress pods

You should adjust the label selector (matchLabels) to match the actual label used by your nginx-ingress pods. Make sure that the label selector you use in the matchLabels field matches the label applied to your nginx-ingress pods. If you are using a different Ingress controller or label, adjust the label selector accordingly.

Regards