GitHub Actions Workflow Generator

GitHub Actions is a CI/CD platform built into GitHub. It lets you automate workflows directly from your repository — running tests on every push, building Docker images on merge, deploying to production on release, and more. Workflows are defined as YAML files in .github/workflows/.

Common triggers include: push (on git push), pull_request (on PR open/update), schedule (cron-based), workflow_dispatch (manual run), release (on GitHub release), and more. You can combine multiple triggers in a single workflow.

A job is a collection of steps that run on the same runner (VM). Jobs run in parallel by default. A step is a single task within a job — running a command, using an action, or setting up a tool. Steps within a job run sequentially and share the same file system.

Store secrets in your repository Settings → Secrets and Variables → Actions. Reference them in your workflow with ${{ secrets.SECRET_NAME }}. Never hardcode tokens or passwords in your YAML — GitHub Actions will mask known secret values in logs.

actions/cache saves and restores directories between workflow runs (e.g., node_modules, pip cache, Cargo registry). It can reduce workflow run time by 50-80% for dependency-heavy projects. Caches are keyed by a hash of your lock file so they invalidate automatically when dependencies change.