Patterns, Anti-Patterns, and Operational Reality
How the mesh keeps identity, authorization, and data controls separate in practice
Sep 1, 202613 min read9

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How the mesh keeps identity, authorization, and data controls separate in practice

How network, request, resource, and field checks compose, with Postgres row-level security as the backstop

Why the private signing key stays in Vault, how rotation avoids 403s, and the blast radius when a component is compromised

Tracing one request through eight checkpoints, from an Envoy header strip at the gateway to Postgres row-level security

A practical guide to building zero-trust applications on Istio
