Running Rust on AWS Lambda on ARM64

• lambda-rust-arm64

  1 6 0.0 Shell

  An AWS Lambda function built to cross compile to arm64 for use with the new Lambda platform.

TL;DR: Rust on ARM64 Lambda: check out my example repo

• aws-lambda-rust-runtime

  30 3,173 8.9 Rust

  A Rust runtime for AWS Lambda

  

The [[bin]] section allows us to specify the binary filename for what's built (and saves us renaming the file after compilation). The dependencies are all references and dependencies of the AWS Rust runtime crates - that's where the code for the function we'll be using is pulled from.

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• rust-musl-cross

  5 572 7.2 Shell

  Docker images for compiling static Rust binaries using musl-cross

  

The example that is provided in the AWS Rust runtime repository shows them using a custom linker and rustup target in order to cross-compile for x86-based lambdas. I attempted to dive into how to get a arm64-based linker, but in the process of trying to figure out how to get that linker installed locally (no convenient packages for Ubuntu, sorry), I stumbled across a project that provides cross-compilation tooling for various platforms via Docker. That made my life a lot easier - Using the rust-musl-cross Docker container, all I have to do is wrap the call to cargo build, and it builds for the proper architecture:

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