Closing the loop: From network policy intent to verified reality
Intent is not verification
A Kubernetes NetworkPolicy declares intent: this pod should only accept connections from the ingress namespace through port 8443. But you know the line about good intentions, right? Writing a policy and applying it to a cluster is only half the job. You also need to verify that what you intended is what happens in reality.
The first article in the Layered Zero Trust Validated Pattern series showed how this pattern combines default-deny policies with per-pod allow rules to limit the damage potential of a compromised workload in accordance with NIST SP 800-207.
The second article showed how Red Hat Advanced Cluster Security enforces those boundaries at runtime.
The third article in the series pulls network policy intent into the real world.
Learn from seven common mistakes that undermine network policies.
Understand the limitations of the policy analysis tooling landscape.
See how the Layered Zero Trust Validated Pattern uses a design-test-deploy-observe loop to close the gap between policy intent and real-world impact.
Read the full article
For the complete breakdown of mistakes that catch out even experienced architects, the gap between generated and dry-run policy verification, and how the Layered Zero Trust Validated Pattern addresses these problems, read the full article on the Red Hat blog:
