Demystifying Service Mesh: Challenges and Sidecar Patterns

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Service Mesh clearly explained !!! Topics covered • 3 major challenge with microservices architecture • Service mesh with sidecar pattern • Control plane & sidecar proxy

3 major challenges in microservices architecture are • How to services find other services & how to ensure newly added services are discoverable instantly ? • How to ensure service within a cluster/team are able to authenticate each other to maintain security ? • How to ensure monitoring of service health of so many individual microservices ?

What is sidecar pattern ? • The sidecar pattern is a design pattern that adds supporting features to a primary application by attaching a separate container, known as a sidecar, to it. • The sidecar container runs in the same context as the primary application and enhances its capabilities without requiring any modifications to the service code

Service mesh with sidecar pattern • The service mesh is formed using a control plan & a sidecar proxy • The control plane is responsible to automatically injecting sidecar proxies into all the pods

What is sidecar proxy ? The job of the sidecar proxy is to perform non business logic tasks such as • • Service discovery • Load balancing • Metrics • Security • Retries • Telemetry It basically abstracts our all the non business logic which can be commonly written & injected into all microservices by the control plane Developers can also focus on business logic whilst the sidecar proxy code is handled elsewhere

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