Continuous Integration & Continuous Deployment (CI/CD)
CI/CD is a cornerstone of effective DevOps, focusing on the automation of code integration, testing, and deployment.
What is Continuous Integration (CI)?
- Developers merge code changes into a shared repository frequently.
- Automated builds and tests verify every change.
- Reduces integration issues and delivers quality code faster.
Popular CI Tools: GitHub Actions, Jenkins, Travis CI, CircleCI.
What is Continuous Deployment/Delivery (CD)?
- Continuous Delivery: Automated delivery of code to a staging or production environment after passing tests.
- Continuous Deployment: Every change that passes automated tests is deployed automatically to production.
Popular CD Tools: Spinnaker, ArgoCD, GitLab CI/CD.
Common Pipeline Stages
- Build: Compile and check code
- Test: Automated unit and integration tests
- Deploy: Ship code to production
CI/CD bridges the gap between development and operations, ensuring faster and safer releases.