Skip to content

Latest commit

 

History

History
91 lines (63 loc) · 4 KB

lab10.md

File metadata and controls

91 lines (63 loc) · 4 KB

Lab 10: Introduction to Helm

Overview

In this lab, you will become familiar with Helm, set up a local development environment, and generate manifests for your application.

Task 1: Helm Setup and Chart Creation

6 Points:

  1. Learn About Helm:

  2. Install Helm:

  3. Create Your Own Helm Chart:

    • Generate a Helm chart for your application.
      • Inside the k8s folder, create a Helm chart template by using the command helm create your-app.
      • Replace the default repository and tag inside the values.yaml file with your repository name.
      • Modify the containerPort setting in the deployment.yml file.
      • If you encounter issues with livenessProbe and readinessProbe, you can comment them out.

    For troubleshooting, you can use the minikube dashboard command.

  4. Install Your Helm Chart:

    • Install your custom Helm chart and ensure that all services are healthy. Verify this by checking the Workloads page in the Minikube dashboard.

  5. Access Your Application:

    • Confirm that your application is accessible by running the minikube service your_service_name command.

  6. Create a HELM.md File:

    • Construct a HELM.md file and provide the output of the kubectl get pods,svc command within it.

Task 2: Helm Chart Hooks

4 Points:

  1. Learn About Chart Hooks:

  2. Implement Helm Chart Hooks:

    • Develop pre-install and post-install pods within your Helm chart, without adding any complex logic (e.g., use "sleep 20"). You can refer to Example 1 in the guide.

  3. Troubleshoot Hooks:

    • Execute the following commands to troubleshoot your hooks:
      1. helm lint <your_chart_name>
      2. helm install --dry-run helm-hooks <your_chart_name>
      3. kubectl get po

  4. Provide Output:

    • Execute the following commands and include their output in your report:
      1. kubectl get po
      2. kubectl describe po <preinstall_hook_name>
      3. kubectl describe po <postinstall_hook_name>

  5. Hook Delete Policy:

    • Implement a hook delete policy to remove the hook once it has executed successfully.

List of Requirements:

  • Helm Chart with Hooks implemented, including the hook delete policy.
  • Output of the kubectl get pods,svc command in HELM.md.
  • Output of all commands from the step 4 of Task 2 in HELM.md.

Bonus Task: Helm Library Chart

To Earn 2.5 Additional Points:

  1. Helm Chart for Extra App:

    • Prepare a Helm chart for an additional application.

  2. Helm Library Charts:

  3. Create a Library Chart:

    • Develop a simple library chart that includes a "labels" template. You can follow the steps outlined in the Using Library Charts guide. Use this library chart for both of your applications.

Guidelines

  • Ensure your documentation is clear and well-structured.
  • Include all the necessary components.
  • Follow appropriate file and folder naming conventions.
  • Create and participate in PRs for the peer review process.
  • Create pull requests (PRs) as needed: from your fork to the main branch of this repository, and from your fork's branch to your fork's master branch.

Note: Detailed documentation is crucial to ensure that your Helm deployment and hooks function as expected. Engage with the bonus tasks to further enhance your understanding and application deployment skills.