[Solved] Which of the following is the correct way to externalize configuration in a microservice? — Ans: Use environment variables or config files outside the codebase. | Microservices

Microservices - Configuration and Secrets Management

Which of the following is the correct way to externalize configuration in a microservice?

AUse environment variables or config files outside the codebase.

BHardcode all settings inside the service code.

CStore configuration only in the database schema.

DEmbed configuration values in compiled binaries.

Step-by-Step Solution

Solution:

Step 1: Identify common external config methods
Environment variables and external config files are standard ways to keep config outside code.
Step 2: Eliminate incorrect options
Hardcoding or embedding config in binaries prevents easy updates; database schema is not typical for config files.
Final Answer:
Use environment variables or config files outside the codebase. -> Option A
Quick Check:
External config = env vars or files [OK]

Quick Trick: Env vars and files are external config basics [OK]

Common Mistakes:

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Which of the following is the correct way to externalize configuration in a microservice?