[Solved] Given this Pod spec snippet, what will be the value of environment variable DB_PASSWORD inside the container?env: - name: DB_PASSWORD valueFrom: secretKeyRef: name: db-secret key:... | Kubernetes

Kubernetes - Secrets

Given this Pod spec snippet, what will be the value of environment variable DB_PASSWORD inside the container?

env:
- name: DB_PASSWORD
  valueFrom:
    secretKeyRef:
      name: db-secret
      key: password

Assuming the Secret db-secret has the key password with value supersecret123.

Adb-secret

BDB_PASSWORD

Cpassword

Dsupersecret123

Step-by-Step Solution

Solution:

Step 1: Understand valueFrom.secretKeyRef usage
The environment variable gets its value from the Secret named db-secret and key password.
Step 2: Check Secret key value
The Secret key password holds the value supersecret123, so that is assigned to DB_PASSWORD.
Final Answer:
supersecret123 -> Option D
Quick Check:
Env var gets Secret key's value = B [OK]

Quick Trick: Env var equals Secret's key value, not name or key name [OK]

Common Mistakes:

Master "Secrets" in Kubernetes

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Given this Pod spec snippet, what will be the value of environment variable DB_PASSWORD inside the container?