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CKAServices & NetworkingTwo nodesEasy

Headless Service

Scenario cka-net-006 · about 6 minutes · 5 points · 5 grader checks

Create a headless Service (clusterIP None) that selects an existing Deployment's pods.

  • service
  • headless
  • dns
  • networking

What you will practise

  • Create a headless Service
  • Set the selector to match existing pods
  • Verify endpoints of a headless Service

Start this lab

With the CLI installed and signed in, this command provisions a two nodes cluster on your Mac, applies the scenario setup and prints the task below.

goldenkube start cka-net-006

Task

The task text exactly as the CLI shows it. Solve it on the cluster, then run goldenkube submit.

In namespace "net" a Deployment "cache" (label app=cache, 2 replicas) is running. Create a headless Service named "cache-hs" in namespace "net" (clusterIP: None) that selects app=cache and exposes port 6379. It must have endpoints.

Requirements and details

Certification
CKA · Certified Kubernetes Administrator
Domain
Services & Networking
Difficulty
Easy
Cluster topology
Two nodes
Cluster features
None beyond the base cluster
Recommended time
6 minutes
Points
5
Grader checks
5
Kubernetes version
1.37
Minimum CLI version
0.1.0
Scenario version
1
Published

Grading runs locally: 5 state checks read your cluster when you submit; the scenario passes when every check passes. Hints, the reference solution and the check definitions are available only inside the CLI, not on this page.

Install the CLICreate a free account

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Independent community project, not affiliated with or endorsed by CNCF or The Linux Foundation. Lab results are practice feedback, not an exam score.