Book Image

Mastering GitHub Actions

By : Eric Chapman
Book Image

Mastering GitHub Actions

By: Eric Chapman

Overview of this book

Navigating GitHub Actions often leaves developers grappling with inefficiencies and collaboration bottlenecks. Mastering GitHub Actions offers solutions to these challenges, ensuring smoother software development. With 16 extensive chapters, this book simplifies GitHub Actions, walking you through its vast capabilities, from team and enterprise features to organization defaults, self-hosted runners, and monitoring tools. You’ll learn how to craft reusable workflows, design bespoke templates, publish actions, incorporate external services, and introduce enhanced security measures. Through hands-on examples, you’ll gain best-practice insights for team-based GitHub Actions workflows and discover strategies for maximizing organization accounts. Whether you’re a software engineer or a DevOps guru, by the end of this book, you'll be adept at amplifying productivity and leveraging automation's might to refine your development process.
Table of Contents (22 chapters)
Free Chapter
1
Part 1:Centralized Workflows to Assist with Governance
7
Part 2: Implementing Advanced Patterns within Actions
14
Part 3: Best Practices, Patterns, Tricks, and Tips Toolkit

Creating an issue from a pull request

In this section, we will create a workflow that fires on issue comments. The workflow will have the ability to be able to create an issue on the repository and will only do so if the trigger word is in the payload.

We’ll do this as the ability to be able to call out house cleaning opportunities on a pull request. Our use case is that we want to be able to not pollute a pull request with requests when we notice issues outside of the current pull request’s intended result (e.g., upgrade a common lib, fix a code smell, or an opportunity to reduce the cognitive complexity of some code) and we want to call them out as additional issues to be solved.

To do this, we’re going to create a workflow that subscribes to issue comment creation events.

Subscribing to the event

In this section, we’re going to create a workflow that will run when issue comments are created on pull requests. To do this, we need to understand...