# GitHub Actions

> GitHub Actions is the CI/CD service of GitHub that runs workflows defined in YAML files when events happen in a repository.

- Source: https://www.itwonderlab.com/github-actions/
- Published: 2026-08-16
- Updated: 2026-08-16
- Author: Javier Ruiz Jiménez (https://www.javierruizjimenez.com/)
- Site: IT Wonder Lab (https://www.itwonderlab.com/)

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**GitHub Actions** runs build, test and deploy jobs on hosted or self-hosted runners. For AWS it can authenticate with OIDC, so no long-lived keys are stored.

### Key concepts

- **Workflow**: a YAML file in `.github/workflows`.
- **Job** and **step**: units of work on a runner.
- **Action**: a reusable step.

### Learn it

See [Terraform with GitHub Actions and AWS OIDC](https://www.itwonderlab.com/terraform-github-actions-aws-oidc/).