CD01 · CI/CD, GitOps & SRE
GitHub Actions CI with Tests & Artifact
A full CI workflow for a Python service: lint, unit tests, coverage gate and a build artifact.
🎯 You will learn to
- Write a CI workflow
- Add a coverage gate
- Publish an artifact
🧪 Live environment
Runs entirely in your browser: nothing is installed, no real cloud account is used and your code is never sent to our server.
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✅ Steps & checkpoints
🗺️ CI with a coverage gate
Lint, tests and coverage run on every push; coverage below the gate fails the build before an artifact is made.
The 2D diagram shows the exact flow, ports and trust boundaries. The 3D scene is a concept view of the same parts; packets travel along the same arrows.
🤔 Think about it
What should happen when coverage drops?
🛡️ Safety & cost
Pipelines run in a simulator. No repository or cluster is changed.
🧹 Cleanup
Nothing to clean up.
📚 Reference documents
- GitHub Actions documentation · GitHub
- Argo CD documentation · Argo Project
- Site Reliability Engineering book · Google SRE
Official sources, checked on 5 Nov 2026. Cloud services change often; check the official page before relying on a feature. All references