implementing-network-policies-for-kubernetes

Writes portable upstream Kubernetes NetworkPolicy YAML — default-deny-all, DNS egress, namespace and pod selector rules — that works on any conformant CNI such as Calico or Cilium. Use when segmentation must stay CNI-portable, introducing a default-deny posture, or restricting east-west traffic between pods and namespaces without depending on a vendor CRD. Keywords: NetworkPolicy, default deny, podSelector,…