Istio Service Mesh Getting Started: A Practical Guide from Sidecar to Ambient

Overview Let’s answer the most fundamental question first: what does a Service Mesh do? In one sentence: it handles the messy communication stuff between microservices for you. In a microservices architecture, when service A calls service B, what looks like a simple HTTP request actually involves a bunch of concerns: what if it times out? How many retries? Should we circuit break? How do we do canary traffic? Certificate management? Distributed tracing?...

July 12, 2026 · 12 mins · 2523 words · XuBaojin