CI/CD Pipeline Stages & Automation:
- Continuous Integration (CI): Frequently merging code into a central repository, verified by automated builds and test suites to detect regressions early.
- Continuous Delivery / Deployment (CD): Automatically packaging, provisioning, and releasing verified artifacts into staging and production environments.
1. Stage 1: Pre-Merge Linting & Quality Checks:
- Static code analysis, ESLint/Prettier verification, security dependency vulnerability scanning (Snyk/Trivy), and secret leakage detection (git-secrets).
2. Stage 2: Automated Testing:
- Fast unit tests executed in parallel, followed by integration tests with containerized dependencies (Docker Compose / Testcontainers).
3. Stage 3: Artifact Build & Packaging:
- Build immutable container images tagged with the commit SHA and push to a secure container registry.
4. Stage 4: Staging Deployment & End-to-End Validation:
- Deploy to an ephemeral or shared staging environment; run automated end-to-end Cypress/Playwright regression suites.
5. Stage 5: Production Canary Deployment & Observability:
- Deploy to production using Canary or Blue/Green strategies (e.g., 5% traffic for 15 minutes). Telemetry monitors error rates and latency, triggering automated rollback if anomalies are detected.