I have a Pod (e.g. A) and I need this pod to allow ingress requests only from pod B and C. Similarly, A is allowed to send requests only to B and C.
There are a few network policies already existing in the cluster. However you are NOT allowed to create/update/delete a new/existing NW Policy. You can only "use/inject" the existing policy in the Pod.
Note - I am aware of the fact that we can create Network Policy and use the pod A as Pod Selector. However this question demands a different approach. Cant create new NetPol or update existing ones.
Please share how to realize this.