Continuous Integration

Definitions

1. Continuous Integration (CI) is a development practice where developers merge their code changes into a shared repository frequently, ideally multiple times per day, with each merge automatically triggering a build and test pipeline. The goal is to detect integration errors as early as possible, rather than discovering them during a large, painful merge weeks later. A CI server (Jenkins, GitHub Actions, GitLab CI, CircleCI) checks out the latest code, compiles it, runs unit and integration tests, performs linting and static analysis, and reports results back to the team. CI is the foundation of modern DevOps workflows and a prerequisite for Continuous Delivery and Continuous Deployment. The key discipline is keeping the main branch always in a deployable state.

   In plain English: Continuous Integration is a practical idea developers use to keep software understandable, easier to change, and more reliable as the codebase gets larger.

   Example: "We used Continuous Integration in this code path so the behavior stays consistent across the project, new contributors can follow the intent quickly, and the team can change implementation details without turning routine maintenance into a risky rewrite."

Related Terms

• Config as Code
• Shell Script
• Continuous Delivery
• Continuous Deployment
• CPU Pipeline
• Deploy Pipeline
• Deployment Slot
• Deployment Strategy
• Integration