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Broken Deployment Triage

Part of the Introduction to Kubernetes section of Coddy's Terminal journey. Lesson 45 of 45.

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Challenge

Medium

A teammate's Deployment will not start. Apply deployment.yaml as it is, list the Pods and describe them to find out why they fail. Then open the file from the file tree, fix the image tag, save it, apply it again, and list the Pods until both replicas are Running.

  1. Apply the manifest
  2. List the Pods
  3. Describe the Pods labelled app=worker
  4. Fix the image in deployment.yaml and apply it again
  5. List the Pods

Try it yourself

Terminal

All lessons in Introduction to Kubernetes

1Introduction

What Is KubernetesThe Cluster

4Deployments

Creating A DeploymentScalingDeployments From ManifestsUpdating ImagesRolling BackRecap - Deployment Manager

7Configuration

ConfigMapsSecretsEnvironment VariablesRecap - Config Master

10Web Shop Project

Project OverviewWrite The DeploymentProject lessonExpose The ShopProject lessonScale And UpdateProject lessonRoll Back SafelyProject lesson

2Pods

Running A PodListing PodsDescribing PodsDeleting PodsRecap - Pod Wrangler

5Services

Exposing A DeploymentService TypesEndpointsRecap - Service Desk

8Namespaces & Jobs

NamespacesWorking In A NamespaceJobsRecap - Namespace Navigator

11Final Challenges

Cluster DetectiveFull Rollout PipelineBroken Deployment Triage

3Manifests

Writing A ManifestLabelsRecap - Manifest Writer

6Debugging

Pod LogsExecuting CommandsImage Pull ErrorsCrash LoopsRecap - Pod Doctor

9Output Formats

Wide And Name OutputYAML OutputJSONPathRecap - Output Explorer

Practice on your own: Terminal playground