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In a microservices setup, how is a sidecar proxy typically deployed relative to the main service?

easy📝 Conceptual Q3 of 15
Microservices - Service Mesh
In a microservices setup, how is a sidecar proxy typically deployed relative to the main service?
AOn a different server to isolate network traffic from the main service
BAs a shared library linked directly into the main service's codebase
CAs a separate container running alongside the main service container within the same pod or host
DEmbedded inside the main service's runtime environment
Step-by-Step Solution
Solution:
  1. Step 1: Understand sidecar deployment

    The sidecar proxy is deployed as a separate container but shares the same pod or host as the main service to intercept and manage network traffic.
  2. Step 2: Evaluate other options

    Embedding the proxy as a library or inside the service runtime is not typical; deploying on a different server breaks the close coupling needed for sidecar benefits.
  3. Final Answer:

    As a separate container running alongside the main service container within the same pod or host -> Option C
  4. Quick Check:

    Sidecar proxies run alongside services in the same environment [OK]
Quick Trick: Sidecars run alongside services in the same pod or host [OK]
Common Mistakes:
MISTAKES
  • Thinking sidecar proxies are embedded libraries
  • Deploying sidecars on separate servers
  • Confusing sidecar with standalone proxies

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