A well-designed CI/CD pipeline is the backbone of a fast, safe software delivery organisation. This resource provides a practical checklist of the essential stages and practices for resilient pipelines.
1. Source Control and Branching
- Keep a single source of truth in Git with a clean branching model
- Require pull requests with review before merging to main
- Enforce protected branches and status checks
- Sign commits and pin the CI/CD configuration itself
2. Linting and Static Analysis
- Run linters and formatters automatically on every change
- Enforce code style and identify common defects early
- Integrate security scanners for dependencies and secrets
- Gate merges on a clean static analysis pass
3. Testing Strategy
- Run unit tests fast and in parallel per commit
- Execute integration and end-to-end tests against realistic environments
- Measure and enforce coverage thresholds
- Run property-based and mutation testing where valuable
4. Build and Artifact Management
- Build reproducible artifacts with pinned dependencies
- Tag and version every artifact uniquely
- Store immutable artifacts in a registry with retention policies
- Sign and scan images for vulnerabilities before promotion
5. Deployment and Release Management
- Automate deployment through environments (staging, production)
- Use blue-green or canary strategies for low-risk rollouts
- Support one-command rollbacks to a known-good release
- Manage configuration and feature flags separately from code
- Implement audit trails and approvals for production changes
6. Observability and Feedback
- Collect metrics, logs and traces from every stage
- Alert on pipeline failures and flaky tests promptly
- Track deployment frequency, lead time, change failure rate and MTTR
- Continuously improve based on measurable feedback
A trustworthy pipeline fails loudly and fast. Invest in fast builds, deterministic tests and automated rollback so that shipping software becomes a boring, reliable routine.