Using labels for service routing in Kubernetes - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to select pods with the label app=frontend.

Kubernetes

selector:
  matchLabels:
    app: [1]

Drag options to blanks, or click blank then click option'

Acache

Bbackend

Cdatabase

Dfrontend

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'backend' or other labels instead of 'frontend'.

The selector uses the label app=frontend to route traffic to frontend pods.

2fill in blank

medium

Complete the service selector to route traffic to pods with label tier=backend.

Kubernetes

selector:
  tier: [1]

Drag options to blanks, or click blank then click option'

Abackend

Bdatabase

Ccache

Dfrontend

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing 'frontend' with 'backend' label values.

The service selector uses tier=backend to route traffic to backend pods.

3fill in blank

hard

Fix the error in the selector to correctly route to pods with label env=production.

Kubernetes

selector:
  env: [1]

Drag options to blanks, or click blank then click option'

Astaging

Bproduction

Cdevelopment

Dtest

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'staging' or other environment labels by mistake.

The selector must use env=production to route traffic to production pods.

4fill in blank

hard

Fill both blanks to route traffic to pods with labels app=api and version=v2.

Kubernetes

selector:
  app: [1]
  version: [2]

Drag options to blanks, or click blank then click option'

Aapi

Bv1

Cv2

Dweb

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing version values or app labels incorrectly.

The selector uses app=api and version=v2 to route traffic to the correct pods.

5fill in blank

hard

Fill all three blanks to create a selector for pods with labels role=frontend, env=prod, and track=stable.

Kubernetes

selector:
  role: [1]
  env: [2]
  track: [3]

Drag options to blanks, or click blank then click option'

Afrontend

Bprod

Cstable

Ddev

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'dev' instead of 'prod' or mixing labels.

The selector uses role=frontend, env=prod, and track=stable to route traffic correctly.