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CI/CD Pipeline Concepts

CI/CD stands for "Continuous Integration" and "Continuous Delivery/Deployment," which are central to modern software development.

1. CI (Continuous Integration)​

This is the process where developers regularly integrate their code changes into a shared repository (like Git), followed by automated building and testing.

  • Advantages: Detects bugs early and maintains high code quality.
  • Tools: GitHub Actions, Jenkins, CircleCI.

2. CD (Continuous Delivery / Continuous Deployment)​

This is the process of rapidly and accurately delivering the output that has passed CI to the production environment.

  • Continuous Delivery: Automated release to a repository, followed by a manual step to deploy to production.
  • Continuous Deployment: Automated release and deployment straight to production without manual intervention.

3. GitHub Actions Preview​

name: CI
on: [push]
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - name: Install dependencies
        run: npm install
      - name: Run tests
        run: npm test

4. Benefits of CI/CD Pipelines​

  1. Shortened Release Cycles: Eliminating manual tasks allows for more frequent deployments.
  2. Reliability: Automation reduces deployment failures by ensuring every change passes rigorous testing.
  3. Efficiency: Developers can stay focused on writing code rather than managing deployments.

In the next section, we will learn about the cloud environments where these infrastructures reside.

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