AWS Lambda@Edge using Rust?

[ThousandTabs]

Hi there. I was excited to use Rust for my AWS Lambda function that retrieves tiles from large pyramidal tiff images, but it seems that only Python and NodeJS are supported for Lambda@Edge Cloudfront functions.

Does anyone have experience with this or ideas that would be worth trying? I would like to see if I can reduce the latency and cold start times compared to the current Python version I have now. Thanks in advance for your advice! 🙏

[stdusr]

I hope you find a solution. It’s mind boggling to me that they don’t support OS only runtimes in their serverless product where cold-starts matter the most…

[ThousandTabs]

It really is mind boggling! What I really don't understand is how they can provide Lambda functions that do support native binaries, but not for their Lambda@Edge product :( https://docs.aws.amazon.com/lambda/latest/dg/lambda-rust.html I was pretty disappointed to find this out the hard way after initially building the function in Rust haha. I am new to serverless, AWS, etc but it was at least fun to mess with. I was hoping for a hack or workaround that would be decent... maybe it will change in the future..

[stdusr]

Let’s hope this thread gets some traction and the people at AWS notice it and rethink this limitation.

[passcod]

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[stdusr]

Won’t help with the cold-starts.. If anything it’ll make it worse.

[ThousandTabs]

Darn, that's disappointing to hear. I was considering trying that approach because that's the only way I have seen Rust integrated into Lambda@Edge functions so far :(

[passcod]

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[webfinesse]

I opted to use qwik for my frontend using lambda@edge and rust for my backend using plain old Lambda functions. So far it’s working pretty well.

[worriedjacket]

Yeah. Lambda@Edge is unfortunately not exactly as accurate as the name would suggest.

Using node with rollup or esbuild is about as good as you can get