Ken Muse
What's New in GitHub Actions Runner Controller
Over the last three months, the GitHub team behind Actions Runner Controller (ARC) has released three updates. These included bug fixes, performance improvements, improved configurability, and a new approach to metrics. In this post, I’ll cover some of the highlights of these releases and what they mean for you.

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The Secret Life of Git Large File Storage
For most people, Git Large File Storage (LFS) is a black box. You install it and somehow Git handles large files differently. But how does it manage the files? How does it know how and when to upload the files? And how was this implemented using only native Git extensibility points? This post will uncover its secrets and how it uses Git hooks and filters to manage large files.

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Migrating Git With An LFS Configuration File
Migrating repositories with LFS can be tricky. This is especially true when the repository is configured to use an LFS endpoint that is separate from the Git repository. Learn how to safely migrate repositories that are using .lfsconfig to manage the storage location.

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Using A Kubernetes Native Sidecar With GitHub ARC
Kubernetes native sidecars can create more reliable deployments. In this post, we’ll explore how to improve the Docker-in-Docker implementation in GitHub Actions Runner Controller (ARC) using native sidecars.

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Migrating Submodules That Use Large File Storage (LFS)
Submodules can require some additional considerations during a migration. If the submodule repositories have large files that need to be migrated to LFS, the change to the commit IDs can break the submodules. This post explains why the problem happens, how to avoid issues during migration, and how to fix problems when they happen.

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What Is a GitHub Tool (And Why to Use Them)
Need to ensure that you’re using the right version of a CLI tool in your GitHub Actions? Want to be more resilient to change? GitHub Tools are the answer.

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Defining The Process for Securing Your Supply Chain
A company’s software and development practices are only as secure as their supply chain. This post will explore how to define a process for properly reviewing the supply chain using a GitHub Action as an example.

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How to Handle Step and Job Errors in GitHub Actions

How to Handle Step and Job Errors in GitHub Actions

In most cases, we write a CI/CD workflow where all of the steps succeed. If a step fails, the job and workflow fails. But what do we do when we need the workflow to handle a failing step or job?

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Using Dynamic Environment Variables With GitHub
Every wanted to dynamically set (or unset) environment variables in your GitHub Actions? Needing more control over the configuration of your steps? Wanting to configure everything using logic written in the language of your choice rather than just relying on GitHub’s expression syntax? This post will show you how to use a powerful technique to take your workflows to the next level.

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Implementing Processes for GHAS using GitHub Probot
GitHub Advanced Security (GHAS) helps teams to shift left and secure their development practices. But what do you do when its process its processes and practices doesn’t quite fit your team’s approach? In this post, we’ll look at how to use GitHub Probot to implement your own process in a GitHub-native way.

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