added network policy

[mjmanas0699]

No description provided.

[sk31337]

@mjmanas0699 i don't think this is the correct solution for Task06.

What do you think about:

apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: k8s-netpol
  namespace: nemspace-netpol
spec:
  podSelector: {}
  policyTypes:
  - Ingress
  - Egress
  ingress:
  - from:
    - namespaceSelector:
        matchExpressions:
        - key: namespace
          operator: In
          values: ["internal"]
    ports:
    - protocol: TCP
      port: 9200
  egress:
  - to:
    - namespaceSelector:
        matchExpressions:
        - key: namespace
          operator: In
          values: ["nemspace-netpol"]