Reproducible Builds at Sidero Labs: Tools and Techniques (asg2024)

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Ensuring consistent and secure software builds is crucial in today's cloud-native environments. At Sidero Labs, we've developed a comprehensive approach to reproducible builds for Talos Linux using a variety of tools and techniques. This talk will explore our use of Docker Buildx, Kres, and other key components that contribute to our build system. We'll share insights into our methods, challenges faced, and solutions implemented, providing practical guidance for developers aiming to achieve reproducibility in their own projects. To achieve a fully reproducible stack, from the kernel and initramfs to the software we own and third-party software we build, we use multiple tools in our toolset: - Buildx: Provides a consistent environment for building software. - Kres: Our project scaffolding tool for generating and updating build instructions and dependencies. - Code Patches: Address issues in third-party projects that prevent reproducible builds. - Tests: Written by us to ensure and verify reproducibility. In this talk, we will cover each of these tools and techniques, providing examples and practical insights. You will learn how to apply these methods to achieve reproducible builds in your own projects, gaining a complete picture of our approach and how it can be adapted to your needs. Licensed to the public under https://creativecommons.org/licenses/by/4.0/de/ about this event: https://cfp.all-systems-go.io/all-systems-go-2024/talk/RYZJ9W/