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devops/activities/05-kubernetes-intro-lab.md
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2026-01-01 00:00:00 +00:00

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id title mode open_at close_at retakes_enabled max_attempts grade_max
act-05-kubernetes-intro-lab Kubernetes Intro - Lab lab 2026-02-01T00:00:00+01:00 2026-12-31T23:59:59+01:00 true 999 100

T1

Type: short Points: 10 Prompt: Write the kubectl command that lists the nodes in the current cluster. Refs:

  • mat-06-kubernetes-intro#verify-cluster-with-kubectl-get-nodes Answer: kubectl get nodes

T2

Type: folder Points: 35 Prompt: Create folder @solutions/kubernetes-intro/lab/manifests containing pod.yaml and deployment.yaml that express desired state for a simple app (image, ports, and replicas) using the Pod and Deployment nesting described. Refs:

  • mat-06-kubernetes-intro#object-nesting-containers-pods-deployments
  • mat-06-kubernetes-intro#desired-state-observed-state-and-reconciliation Rubric:
  • Folder exists at the required path and contains exactly pod.yaml and deployment.yaml. (5)
  • pod.yaml is a valid Pod manifest that runs a container image and exposes at least one container port. (15)
  • deployment.yaml is a valid Deployment manifest that references a Pod template and sets replicas. (15)

T3

Type: file Points: 25 Prompt: Create file @solutions/kubernetes-intro/lab/kubeconfig_notes.md explaining (a) what kubectl does on every command and (b) the purpose of clusters, users, contexts, and current-context in kubeconfig. Refs:

  • mat-06-kubernetes-intro#what-kubectl-does-per-command
  • mat-06-kubernetes-intro#kubeconfig-structure-clusters-users-contexts-current-context Rubric:
  • Correctly explains the three kubectl steps (REST request, target cluster via current context, credentials via current context). (10)
  • Correctly explains clusters, users, contexts, and current-context and how they relate. (10)
  • Writing is clear, structured with headings/bullets, and uses accurate terminology from the material. (5)

T4

Type: mcq Points: 15 Prompt: In Docker Desktop, which Kubernetes option is emphasized as necessary to create a multi-node cluster (not single-node)? Refs:

  • mat-06-kubernetes-intro#deploy-docker-desktop-built-in-multi-node-cluster Choices:
  • kind (sign-in required)
  • kubeadm
  • minikube
  • k3s

T5

Type: essay Points: 15 Prompt: In 6-8 sentences, explain why Kubernetes Services are needed for stable networking to Pods, and name at least two events that cause Pod IP churn. Refs:

  • mat-06-kubernetes-intro#services-and-stable-networking
  • mat-06-kubernetes-intro#pod-lifecycle
  • mat-06-kubernetes-intro#pods-as-the-unit-of-scaling Rubric:
  • Explains why clients cannot reliably connect to individual Pods and connects this to Pod mortality/IP churn. (7)
  • Names at least two sources of churn (failures, rollouts, scale up, scale down) and explains them. (5)
  • Describes the Service front end (stable name/IP/port) and back end (labels + healthy Pods + load balancing). (3)