reproducible builds

Building Secure and Reliable Systems: Best Practices for Designing, Implementing, and Maintaining Systems

by Heather Adkins, Betsy Beyer, Paul Blankinship, Ana Oprea, Piotr Lewandowski and Adam Stubblefield  · 29 Mar 2020  · 1,380pp  · 190,710 words

—for example, to verify that code came from the proper source repository. The version is useful for various purposes, such as ad hoc analysis, ensuring reproducible builds, and verification of chained build steps where the output of step i is the input to step i+1. Be aware of the attack surface

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build process can perform, the better. For a good example of binary provenance, see Debian’s deb-buildinfo format. For more general advice, see the Reproducible Builds project’s documentation. For a standard way to sign and encode this information, consider JSON Web Tokens (JWT). Code Signing Code signing is often used

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Verifiable?”). This approach may be desirable even if it is not required by the verifiable build architecture, as defined in the next section. For example, reproducible builds may be useful to independently reverify the binary provenance of an artifact after discovering a security incident or vulnerability. Verifiable build architectures The purpose of

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question. Open source projects like Debian use this model when a central authority model is infeasible or undesirable. Hermetic, Reproducible, or Verifiable? The concepts of reproducible builds and hermetic builds are closely related to verifiable builds. Terminology in this area is not yet standard,17 so we propose the following definitions: Hermetic

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. Reproducible Running the same build commands on the same inputs is guaranteed to produce bit-by-bit identical outputs. Reproducibility almost always requires hermeticity.18 Reproducible builds have the following benefits: Verifiability—A verifier can determine the binary provenance of an artifact by reproducing the build themselves or by using a quorum

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”. Hermeticity—Nonreproducibility often indicates nonhermeticity. Continuously testing for reproducibility can help detect nonhermeticity early, thereby ensuring all the benefits of hermeticity described earlier. Build caching—Reproducible builds allow for better caching of intermediate build artifacts in large build graphs, such as in Bazel. To make a build reproducible, you must remove all

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. In most cases, you must fully specify the full toolchain and operating system; different versions usually produce slightly different output. For practical advice, see the Reproducible Builds website. Verifiable You can determine the binary provenance of an artifact—information such as what sources it was built from—in a trustworthy manner. It

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described in the previous section. 16 See “Design Objectives and Requirements”. 17 For example, the SRE book uses the terms hermetic and reproducible interchangeably. The Reproducible Builds project defines reproducible the same way this chapter defines the term, but occasionally overloads reproducible to mean verifiable. 18 As a counterexample, consider a build

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-Example code snippets safe proxies and, Safe Proxies in Production Environments three-factor authorization and, Three-Factor Authorization (3FA) tool proxies and, Google Tool Proxy reproducible builds, Verifiable build architectures researchers, External Researchers-External Researchers resilience, designing for, Design for Resilience-Conclusioncontinuous validation, Continuous Validation-Measure key rotation cycles controlling blast radius

Site Reliability Engineering: How Google Runs Production Systems

by Betsy Beyer, Chris Jones, Jennifer Petoff and Niall Richard Murphy  · 15 Apr 2016  · 719pp  · 181,090 words

projects. When a change is made to a file, Bazel only rebuilds the part of the software that depends on that file. Such systems provide reproducible builds. Instead of running all tests at every submit, tests only run for changed code. As a result, tests execute cheaper and faster. There are a

The Rust Programming Language

by Steve Klabnik and Carol Nichols  · 14 Jun 2018  · 821pp  · 178,631 words

changed, so Cargo knows it can reuse what it has already downloaded and compiled for those. It just rebuilds your part of the code. Ensuring Reproducible Builds with the Cargo.lock File Cargo has a mechanism that ensures you can rebuild the same artifact every time you or anyone else builds your

Software Engineering at Google: Lessons Learned From Programming Over Time

by Titus Winters, Tom Manshreck and Hyrum Wright  · 17 Mar 2020  · 214pp  · 31,751 words

them before moving on. Tools as Dependencies One problem we ran into earlier was that builds depended on the tools installed on our machine, and reproducing builds across systems could be difficult due to different tool versions or locations. The problem gets even harder when your project uses languages that require different

Programming Rust: Fast, Safe Systems Development

by Jim Blandy and Jason Orendorff  · 21 Nov 2017  · 1,331pp  · 183,137 words

’s flexible version specifiers make it easy to use Rust libraries in your project and maximize compatibility among libraries. Cargo.lock’s bookkeeping supports consistent, reproducible builds across machines. Together, they go a long way toward helping you avoid dependency hell. Publishing Crates to crates.io You’ve decided to publish your

The Rust Programming Language, 2nd Edition

by Steve Klabnik and Carol Nichols  · 27 Feb 2023  · 648pp  · 183,275 words

src/main.rs file. Your dependencies haven’t changed, so Cargo knows it can reuse what it has already downloaded and compiled for those. Ensuring Reproducible Builds with the Cargo.lock File Cargo has a mechanism that ensures you can rebuild the same artifact every time you or anyone else builds your

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.lock file is important for reproducible builds, it’s often checked into source control with the rest of the code in your project. Updating a Crate to Get a New Version When

Elixir in Action

by Saša Jurić  · 30 Jan 2019

file, unless mix.lock already exists on the disk, in which case this file is consulted to fetch the proper versions of dependencies. This ensures reproducible builds across different machines, so make sure you include mix.lock in the source control where your project resides. Now that you’ve fetched all of