Security Concept Summary
Security Concept Summary
The security model is not based on one magic control. It is a stack of smaller boundaries:
- public traffic enters through a hardened gateway
- internal proxy hops stay on loopback or narrowly scoped internal paths
- apps are hidden behind sidecars
- service identities are split by user, certificate, and policy
What that buys me
This gives me a few useful properties:
- unknown public traffic can be dropped early
- internal ports do not need to be broadly exposed
- each layer has its own logs and health checks
- compromise of one workload does not automatically imply control of every other workload
What still matters
A layout like this still depends on good operational habits:
- correct header forwarding
- careful trust of real client IP data
- rate limiting at the edge
- correct ownership of keys and certificates
- tight SSH and Git handling for operational access
The point is not that the setup is perfect. It is that the trust boundaries are explicit enough to reason about.