intermediatePart 1
Your firewall is lying to you: hardening Docker networks for multi-agent systems
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Hardening self-hosted AI infra
- 1Lock down Docker networks
- 2Run containers as non-root
- 🏆Identity in front of every port
You start with one agent. Then it needs a database. Then you add a second agent, a messaging bridge, an observability stack. Six months later a single WEC Instance is running five compose projects, twenty-something containers, and nobody remembers which ports are open to the world.
That's not a hypothetical — that's the box this tutorial was written on. So instead of theorizing, we probed it: can containers reach each other across stacks? Can they reach the databases? Is the firewall actually protecting anything?
Three of the answers surprised me. One of them was a database sitting there with no password. And the firewall — the firewall was lying.