[Solved] Given this pod spec snippet, what environment variables will be available inside the container?... Given this pod spec snippet, what environment variables will be available inside the container? | Kubernetes

Kubernetes - ConfigMaps

Given this pod spec snippet, what environment variables will be available inside the container?

envFrom:
  - configMapRef:
      name: my-config

And the ConfigMap my-config contains keys: API_URL=https://api.example.com and TIMEOUT=30.

AOnly API_URL=https://api.example.com

BAPI_URL=https://api.example.com and TIMEOUT=30

COnly TIMEOUT=30

DNo environment variables will be set

Step-by-Step Solution

Solution:

Step 1: Understand envFrom with configMapRef
Using envFrom with configMapRef loads all keys from the ConfigMap as environment variables.
Step 2: Check ConfigMap keys
The ConfigMap has two keys: API_URL and TIMEOUT, so both become env vars.
Final Answer:
API_URL=https://api.example.com and TIMEOUT=30 -> Option B
Quick Check:
envFrom loads all keys as env vars [OK]

Quick Trick: envFrom loads all ConfigMap keys as env vars [OK]

Common Mistakes:

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Given this pod spec snippet, what environment variables will be available inside the container?