Episode 136 - Sidecar Proxy (Pros and Cons)
The Backend Engineering Show with Hussein Nasser - A podcast by Hussein Nasser
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A sidecar proxy is an application design pattern which abstracts certain networking features, such as inter-service communications, monitoring and security, timeouts, retries, communication protocols, away from the main architecture to ease the maintenance of the application as a whole. In this video I’d like to talk about how we classically do things: Library Pattern getComments HTTP1:1/JSON Add features retries/timeout /hardcode the server name what it changed/add new server to load balance between them/credentials Sidecar pattern getComments HTTP/2 Sidecar proxy/container Examples Microservices (Linkerd, Envoy, Istio) Pros Language agnostic (polyglot) Protocol upgrade Security Tracing and Monitoring Service Discovery Caching Cons Complexity Latency SideCar Proxy must be layer 7 Library 2:25 Sidecar: 7:40 Example: 13:00 (https://www.youtube.com/watch?v=cp3Ku1XeOn8) Pros & Cons : 16:15 Cards 6:22 HTTP/2 10;50 Reverse Proxy / proxy example 13:00 (https://www.youtube.com/watch?v=cp3Ku1XeOn8) 16:00 Layer 4 vs Layer 7 load balancer
