Challenge, Easy,  on  Kubernetes

Manually Schedule Deployment Pods on a Specific Node

Scenario

A namespace named gcp already exists in the Kubernetes cluster. Your task is to deploy an application, manually schedule it on a specific node, and expose it externally using a NodePort Service.

Task

Create a Deployment named cloud-run in the gcp namespace with the following specifications:

  • Use the container image gcr.io/cloudrun/hello
  • Run 3 replicas
  • Expose port 8080 via containerPort
  • Ensure all Pods have the label gcp-service=cloud-run and the Service selector matches this label to route traffic correctly.
  • Schedule all Pods manually on node node-02

Once the Deployment is created, expose it using a Service named cloud-run-service with the NodePort type so the application can be accessed externally.

Finally, verify the Deployment and Pods are running, the Service is created, and identify the NodePort assigned to access the application.

# Test whether the application is accessible
curl -s cplane-01:<NodePort>
Hint 1

Schedule all Pods manually on node node-02 using nodeName under spec.template.spec.

See the official docs: Assign Pods to Nodes

Test Cases

How to Author Challenges on iximiuz Labs

Instead of providing a subpar online editing experience, iximiuz Labs offers a helper CLI tool called labctl, allowing you to use your favorite text editor (or a full-featured IDE) to write content from the comfort of your local machine.

Install labctl CLI

curl -sf https://labs.iximiuz.com/cli/install.sh | sh

This will download and install the latest version of the labctl CLI. You only need to do this once per workstation.

Authorize labctl

labctl auth login

This will open a browser window asking you to authorize labctl to access your account. You need to do it after a fresh install of labctl and repeat it whenever the auth session expires.

Pull challenge content

labctl content pull challenge manually-schedule-deployment-pods-on-a-specific-node-930b9d33

This will create a local copy of the challenge content in a directory named manually-schedule-deployment-pods-on-a-specific-node-930b9d33. You only need to do this once per challenge.

Stream your changes

labctl content push -fw challenge manually-schedule-deployment-pods-on-a-specific-node-930b9d33

Run this command in a separate terminal to continuously upload your changes to the server while editing the challenge in your favorite text editor or IDE.

You can also use labctl to create, list, and delete your content. Learn more about the available commands: labctl content --help

Start challenge