GitHub Actions

GitHub Actions is a powerful and flexible continuous integration and continuous delivery (CI/CD) platform built directly into GitHub. It allows you to automate your software development workflows in response to events in your GitHub repository. For example, you can create a workflow that automatically runs your test suite every time a developer pushes code to a branch, or a workflow that deploys your application to production every time a new release is created. Workflows are defined in YAML files that you store directly in your repository, inside a `.github/workflows` directory. This 'configuration as code' approach means your automation pipeline is version-controlled along with the rest of your project. A workflow is made up of one or more 'jobs', which run in parallel by default. Each job runs in its own virtual machine or container and is made up of a sequence of 'steps'. A step can be a simple shell command (like `npm install` or `npm test`) or a reusable 'action'. Actions are the building blocks of a workflow. You can use thousands of pre-built actions from the GitHub Marketplace for common tasks like checking out your code, setting up Node.js, or deploying to AWS, or you can write your own. GitHub Actions makes it incredibly easy to set up a robust CI/CD pipeline, improving your team's productivity and the reliability of your software.