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CI/CD Platform Design

This page explains the basic design thinking behind a practical CI/CD platform.

Why It Matters

A CI/CD platform is not only about running builds. It controls how code moves from commit to deployment, how quality checks run, and how safely releases reach users.

Core Goals

  • Fast feedback for developers
  • Repeatable builds and deployments
  • Clear quality gates
  • Safer rollback when releases fail

Main Components

  • Source control system
  • Build runner such as Jenkins, GitHub Actions, or GitLab CI
  • Artifact repository
  • Deployment pipeline
  • Secrets management
  • Monitoring and alerting

Basic Flow

  1. Developer pushes code.
  2. Pipeline runs build and tests.
  3. Security and quality checks run.
  4. Artifact is stored in a repository.
  5. Deployment is promoted across environments.
  6. Monitoring confirms release health.

Design Questions

  • How are builds isolated?
  • Where are artifacts stored?
  • How are secrets injected safely?
  • What is the rollback path?
  • What blocks a bad release from reaching production?

Common Risks

  • Shared runners causing noisy failures
  • Hardcoded secrets in pipelines
  • No artifact versioning
  • Weak rollback process

Practical Advice

  • Keep pipelines version-controlled
  • Separate build from deployment
  • Add approval only where risk justifies it
  • Treat rollback as part of the design, not an afterthought