Kubernetes CKA sample exam question 99 with answer

Question
Create a NetworkPolicy which allows ALL outgoing traffic to dev namespace.

Answer
Make sure you label the namespace dev with label name=dev. Create netpol:

apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: allow-to-ns
spec:
  podSelector: {}
  policyTypes:
  - Egress
  egress:
  - to:
    - namespaceSelector:
        matchLabels:
	  name: dev

Apply and verify:

kubectl apply -f netpol.yaml
kubectl describe netpol allow-to-ns