Book Image

Accelerate DevOps with GitHub

By : Michael Kaufmann
Book Image

Accelerate DevOps with GitHub

By: Michael Kaufmann

Overview of this book

This practical guide to DevOps uses GitHub as the DevOps platform and shows how you can leverage the power of GitHub for collaboration, lean management, and secure and fast software delivery. The chapters provide simple solutions to common problems, thereby helping teams that are already on their DevOps journey to further advance into DevOps and speed up their software delivery performance. From finding the right metrics to measure your success to learning from other teams’ success stories without merely copying what they’ve done, this book has it all in one place. As you advance, you’ll find out how you can leverage the power of GitHub to accelerate your value delivery – by making work visible with GitHub Projects, measuring the right metrics with GitHub Insights, using solid and proven engineering practices with GitHub Actions and Advanced Security, and moving to event-based and loosely coupled software architecture. By the end of this GitHub book, you'll have understood what factors influence software delivery performance and how you can measure your capabilities, thus realizing where you stand in your journey and how you can move forward.
Table of Contents (31 chapters)
1
Part 1: Lean Management and Collaboration
7
Part 2: Engineering DevOps Practices
14
Part 3: Release with Confidence
19
Part 4: Software Architecture
22
Part 5: Lean Product Management
25
Part 6: GitHub for your Enterprise

Scaling your self-hosted runners

Installing the action runner on existing build machines allows for easy migration to GitHub. But this is not a long-term solution! If you can't use the hosted runners, you should build an elastically scaling build environment yourself.

Ephemeral runners

If you build an elastic scaling solution for your build machines or container, you should use ephemeral runners. This means you use a virtual machine or Docker image from a blank image and install a temporary runner. Then, everything gets erased after the run. An elastic scaling solution with persistent runners is not recommended!

To configure your runner to be ephemeral, you pass the following argument to the config script:

$ ./config.sh --ephemeral

Scaling up and down with GitHub webhooks

To scale your virtual environments up and down, you can use GitHub webhooks. The workflow_job webhook gets called with the queued action key if a new workflow is queued. You can use this event...