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Testing and Troubleshooting

  • Playwright is the End to End testing framework for the eShop applciation. It will be triggered using GitHub Actions.
  • Chaos Engineering is used to simulate network delays and failures in the eShop application.

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Playwright

  • Playwright is a functional test framework that allows you to write tests in JavaScript, TypeScript, Python, and C#.
  • The tests are written in TypeScript and are located in the ./tests directory.
  • The test results are stored as artifacts in the GitHub Actions workflow, which can be downloaded and viewed.

GitHub Actions - Overview

GitHub Actions - Kick Off

  • Change the URL to your specific URL for your deployment of the eShop application.

GitHub Actions - Test Results

Playwright - Artifacts & Detail Results

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Chaos Engineering

Setup

    > cd ./experiments
    > task up

Notes

  • The above command will deploy the Chaos toolkit to AKS and configure the proper access to the cluster.
  • The command will also create a basic Chaos experiment to simulate network delays and pods failures in the eShop application.

Run

  • To trigger the experiment, log into the Azure Portal and navigate to the Chaos Experiments resource group, select the Chaos Experiment and click on the "Run" button.
  • During the experiment, run kubectl --namespace eshop -o wide -w to monitor the status of the pods.
  • You will see pods fail, and enter a "CrashLoopBackOff" state.
  • ❓ How do you bring the pods back to a healthy state?

Network Delays

  • During this phase of the experiment, navigate to the application in your browser.
  • ❓ How are the delays manifested within the application?
  • ❓ Building on the monitoring section, can you find a dashboard or query that does the delays?

Completion

Optional Next Steps

  • ❓ What other steps or branches could be added to the Chaos Experiment?
  • ❓ Could Chaos be used to simulate network load? If not, what service could be used to simulate network load?
  • ❓ Extend the eShop Build Github Action Workflow to block any builds that fail Trivy or Playwright Tests?

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Navigation

Previous Section ⏪ ‖ Return to Main Index 🏠 ‖ Next Section ⏩

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