Istio

← Previous | Series hub | Next → Chapter 6: Clarifying the Boundaries: API Gateway vs Service Mesh When your Golang application scales from dozens to hundreds of Microservices, managing communication becomes a macro-level challenge. You will constantly encounter two tightly coupled concepts: API Gateway and Service Mesh. Many engineers ask: “If I already deploy Istio (Service Mesh), do I still need Kong (API Gateway)?” The answer lies in the fundamental difference between North-South and East-West traffic. ...

Part 2: FinOps Cost Reality - The “Hidden Tax” of Microservices One of the most appealing promises of Microservices is lean Auto-scaling capability: “Only spin up servers for the service under load.” Theoretically, this saves cloud costs. However, when contrasted with the reality of cloud cost management (FinOps), companies discover the exact opposite: Microservices architectures are often many times more expensive than Monoliths. This discrepancy doesn’t stem from actual Compute capacity, but from the “Distributed Tax” — hidden costs incurred merely to maintain communication and monitoring between isolated components. ...