Continuous Integration vs Continuous Delivery
CI automates building and testing on every commit. CD automates deploying tested code to production. Together they form the CI/CD pipeline that underlies modern software delivery.
- 1.Definitions
- 2.Continuous Integration
- 3.Continuous Delivery vs Continuous Deployment
- 4.Security in CI/CD
- 5.Connection to Autonomous Code Governance
Definitions
Continuous Integration (CI) is the practice of automatically building, testing, and validating every code change as it is committed. Continuous Delivery (CD) extends CI by automating the release process so that validated code can be deployed to production at any time.
| Property | Continuous Integration (CI) | Continuous Delivery (CD) |
|---|---|---|
| Goal | Validate code on every commit | Keep code deployable at all times |
| What it automates | Build, test, static analysis | Deployment pipeline to staging/production |
| Trigger | Every commit or PR | Successful CI + manual or automatic deploy gate |
| Output | Pass/fail + test report | Deployed artifact in target environment |
| When it fails | Build or test broken | Deployment rejected or rolled back |
| Key metrics | Build time, test coverage, failure rate | Deployment frequency, lead time, change failure rate |
Continuous Integration
CI is the foundation. Every time a developer pushes code, the CI pipeline: pulls the code, runs the build, executes the test suite, runs static analysis, and reports success or failure. The goal is to detect integration problems immediately — before they accumulate into expensive to untangle conflicts.
A good CI pipeline runs in under 10 minutes for developer workflow stages (build + unit tests + lint) and under 30 minutes for the full suite. Slow CI degrades the developer feedback loop.
Continuous Delivery vs Continuous Deployment
An important distinction within CD:
- Continuous Delivery — code is always in a releasable state; deployment requires a human trigger
- Continuous Deployment — every passing CI run is automatically deployed to production without a human trigger
Most organizations practice continuous delivery; continuous deployment requires extremely high test confidence and mature rollback capabilities.
Security in CI/CD
CI/CD pipelines are a primary place to enforce security requirements:
- SAST tools run on every PR — security findings block merge
- SCA tools scan dependencies on every build — known CVEs block deployment
- Secret scanning — detect accidentally committed credentials before they are pushed
- Container scanning — scan Docker images for vulnerabilities before deployment
Connection to Autonomous Code Governance
Autonomous code governance integrates with the CI/CD pipeline at multiple points: SAST and SCA scans in CI gate merges, while Hydra's autonomous remediation pipeline runs outside the critical path — continuously scanning and generating fixes asynchronously. Rather than blocking the CI pipeline for autonomous remediation, Hydra generates PRs that developers merge when ready, keeping CI fast and autonomous governance comprehensive.
Frequently Asked Questions
What is CI/CD?
CI/CD is the combined practice of Continuous Integration and Continuous Delivery (or Deployment). The term refers to the automated pipeline that takes code from commit through testing, validation, and deployment. Common CI/CD platforms include GitHub Actions, GitLab CI, Jenkins, CircleCI, and Buildkite.
How long should a CI pipeline take?
Developer-facing stages (build + unit tests + lint) should complete in under 10 minutes for fast feedback. Full integration test suites can run longer in parallel. The DORA metrics research shows that high-performing teams have CI pipelines that complete in under 5 minutes for the critical developer feedback loop.
What is a deployment pipeline?
A deployment pipeline is the automated sequence of stages that takes validated code from CI and deploys it through environments (staging, QA, production). It includes environment promotion logic, deployment strategies (blue/green, canary), smoke tests, and rollback triggers.
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