Camada Zero: A real-world architecture framework
summary
Itaú-Unibanco presents Camada Zero: a cell‑based architecture that isolates 4–5% of mission‑critical services into scale units (one Kubernetes cluster, one DB per cell), routes requests with a thin Compass router, and orchestrates safe rollouts with a bespoke control plane. After a single‑AZ overheating event that impacted ~14% of customers, the bank builds SLO‑based ops: a per‑cell component computes an SLO burn rate to trigger traffic migration and avoid system‑wide outages.
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chapters (11)
- 0:00Introduction
- 13:23Cellbased architecture
- 14:19Cell
- 16:43Shard
- 24:30Router Compass
- 26:10AZ
- 27:49Control Plane
- 31:17Engineering
- 37:18Operations
- 41:03SLOs
- 43:48Monitoring
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