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GitHub Actions

Automate your workflow directly from your GitHub repository.

0Free
CI/CD
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Overview

GitHub's native CI/CD system to automate build, test, and deployment workflows directly in your GitHub repositories.

Key Features

  • YAML workflows stored alongside code in .github/workflows/
  • Matrix builds for testing across multiple OS and language versions
  • Reusable workflows and composite actions for DRY pipelines
  • GitHub Marketplace with 20,000+ community actions
  • OIDC-based cloud authentication — no long-lived secrets needed
  • Self-hosted runners for on-premises or custom environments

Real-World Workflows

Node.js CI with matrix testing and Docker publish

  1. 1Trigger workflow on push and pull_request events
  2. 2Run tests in a matrix across Node.js 18, 20, and 22
  3. 3Build Docker image on merge to main branch
  4. 4Use OIDC to authenticate to ECR without storing AWS credentials
  5. 5Push image and trigger a deploy workflow via repository_dispatch

Automated security scan on every PR

  1. 1Trigger on pull_request to run security gates before merge
  2. 2Run Trivy to scan the Docker image for CVEs
  3. 3Run SonarQube analysis and post results as PR comment
  4. 4Block merge if critical vulnerabilities are found using branch protection

Getting Started

# .github/workflows/ci.yml
on: [push, pull_request]
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - run: npm ci && npm test

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