github-actions
GitHub Actions
GitHub Actions automates software workflows with event-driven CI/CD pipelines. Workflows are YAML files in .github/workflows/ that define jobs, steps, and actions triggered by repository events.
Action types:
- Workflow files: CI/CD pipelines using existing actions (
.github/workflows/*.yml) - Custom JavaScript actions: Fast, cross-platform, use
@actions/toolkit - Custom Docker actions: Full environment control, Linux only, slower startup
- Composite actions: Combine multiple steps into reusable units
Quick Start
# .github/workflows/ci.yml
name: CI
on:
push:
branches: [main]
pull_request:
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