GitHub Actions is a CI/CD platform that enables the automation of building, testing, and deployment of application code. It is the built-in CI/CD tool for GitHub. In this section, let us go over all the concepts we need to know to understand the GitHub Actions workflow. We will also learn to implement a GitHub action to run syntax checks against our code to make sure it meets specific criteria. Let us start with the necessary terms to help us understand the GitHub Actions workflow file.

The workflow .yaml file contains all the information used to initiate and drive the CI pipeline to completion. YAML is a data-serialization language commonly used for building configuration files. It is in human-readable format and compatible with all the major programming languages. The workflow .yaml file at a high level specifies the following:

• Events: An event is a trigger for a workflow
• Jobs: Jobs are high-level actions performed as part of the workflow
• Runners...