[Solved] Why does Istio use Envoy as a sidecar proxy instead of modifying application code directly? — Ans: To separate networking logic from application logic for easier management | Kubernetes

Kubernetes - Service Mesh

Why does Istio use Envoy as a sidecar proxy instead of modifying application code directly?

ABecause Envoy is the only proxy compatible with Kubernetes

BTo separate networking logic from application logic for easier management

CTo reduce CPU usage by avoiding proxies

DBecause modifying application code is faster but less secure

Step-by-Step Solution

Solution:

Step 1: Understand sidecar proxy purpose
Envoy sidecar separates network features from app code, simplifying management.
Step 2: Evaluate other options
Envoy is not the only proxy, modifying code is complex and error-prone, and proxies add CPU usage.
Final Answer:
To separate networking logic from application logic for easier management -> Option B
Quick Check:
Envoy separates concerns for easier management [OK]

Quick Trick: Sidecar proxies separate network from app logic [OK]

Common Mistakes:

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Why does Istio use Envoy as a sidecar proxy instead of modifying application code directly?