GitHub Actions gives you the flexibility to build an automated software development lifecycle workflow. You can write individual tasks, called actions, and combine them to create a custom workflow. Workflows are custom automated processes that you can set up in your repository to build, test, package, release, or deploy any code project on GitHub.
“With GitHub Actions you can build end-to-end continuous integration (CI) and continuous deployment (CD) capabilities directly in your repository. GitHub Actions powers GitHub's built-in continuous integration service. For more information, see "About continuous integration."
Taking Action With GitHub Actions