CI/CD

In one line

CI/CD turns software delivery into an automated pipeline: every commit is built and tested (continuous integration), and releases flow through staged, repeatable deployments (continuous delivery) instead of heroic release weekends.

The problem it solves

Manual releases are where software breaks: a big batch of changes, shipped by hand on a Friday, with bugs that are hard to trace because so much changed at once. CI/CD inverts it — small changes, automated checks, and a repeatable path to production — so releasing becomes routine and safe instead of a high-stakes event.

The two halves

• CI (Continuous Integration) — on every push: lint, type-check, unit tests, build. Every change is proven before it merges, so the main branch always works.
• CD (Continuous Delivery) — on merge: integration tests, artifact build, deploy to staging, then production — with progressive strategies (canary, blue-green) and instant rollback.

The pipeline definition lives in the repo (GitHub Actions, GitLab CI), so it's versioned and reviewable like code.

The cultural half

Tooling is only half of it. CI/CD works when the team commits to small changes, trunk-based flow, and treating the pipeline as the only road to production — which is also a clean audit trail regulators appreciate.

Where it shows up in digital health

Health software raises the stakes: an EHR integration regression is a patient-safety event. So the pipeline carries extra gates:

• Profile validation for FHIR artefacts.
• Security scans and dependency checks.
• Evidence capture for quality systems (IEC 62304 contexts).

This platform's own launch gate (roadmap M5) requires exactly this — typecheck, lint, build and tests on every PR before anything public ships.

Common pitfalls

• Slow/flaky pipelines — if CI takes an hour or fails randomly, people route around it; keep it fast and reliable.
• No rollback plan — automated deploy without automated rollback is half a system.
• Skipping gates "just this once" — the exception becomes the incident.

Key takeaways

• CI proves every change; CD makes releasing boring (small, staged, reversible).
• The pipeline lives in the repo — versioned, reviewable, and an audit trail.
• In health, add FHIR validation, security scans, and quality-evidence gates.
• It's the engineering backbone behind shipping safely — and this platform's launch gate.