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CKAServices & NetworkingTwo nodesEasy

NodePort Service with a fixed port

Scenario cka-net-002 · about 6 minutes · 5 points · 7 grader checks

Expose a Deployment outside the cluster with a NodePort Service on a specific node port.

  • service
  • nodeport
  • networking

What you will practise

  • Create a NodePort Service
  • Set an explicit nodePort value
  • Verify selector and endpoints

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-002

Task

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

In namespace "net" a Deployment "api" (label app=api, nginx:1.27, container port 80) is already running. Create a Service named "api-np" of type NodePort that exposes port 80 with targetPort 80 and nodePort 30080, selecting the "api" pods.

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
7
Kubernetes version
1.37
Minimum CLI version
0.1.0
Scenario version
1
Published

Grading runs locally: 7 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.

CKAServices & NetworkingEasy

ClusterIP Service for a Deployment

Expose an existing Deployment inside the cluster with a ClusterIP Service that selects all its pods.

Two nodes · ~6 min · 5 points

  • service
  • clusterip
  • endpoints
  • networking

goldenkube start cka-net-001

CKAServices & NetworkingMedium

NetworkPolicy: allow ingress from one app only

Restrict ingress to database pods so only client pods may reach them on a single TCP port.

Two nodes · ~9 min · 7 points

  • networkpolicy
  • ingress
  • cilium
  • networking
  • security

goldenkube start cka-net-003

CKAServices & NetworkingMedium

Ingress routing to a Service

Create an Ingress that routes a hostname and path prefix to an existing Service through the nginx IngressClass.

Two nodes · ~8 min · 7 points · Ingress

  • ingress
  • ingressclass
  • nginx
  • networking

goldenkube start cka-net-004

CKAServices & NetworkingMedium

Gateway API HTTPRoute

Attach an HTTPRoute to an existing Gateway so a path prefix is routed to a Service.

Two nodes · ~9 min · 7 points · Gateway API

  • gateway-api
  • httproute
  • gateway
  • networking

goldenkube start cka-net-005

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