Deploy Cilium in a staging Kubernetes cluster and define a narrow policy between two services. Verify allowed traffic, deny an unauthorized path, and observe the flows with the tooling available to operators. Then simulate a pod restart or node change and confirm policy remains effective.
Network security cannot be judged from a policy file alone. Measure datapath overhead and rehearse rollback if a rule blocks production traffic. The team should be able to explain why a connection was accepted or dropped.
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