Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

The Pro version of LocalStack supports fetching Lambda layers from AWS. Your lambda layer proxy probably uses the x86_64 architecture to extract the contents of a specified layer. Layers can, however, specify architectures they're compatible with and if a layer is only compatible with arm64, the proxy returns error 500.

Exception: Error code 500 when requesting layer content from proxy service

You can reproduce the issue by trying to fetch the arm64 version of my Git layer. arn:aws:lambda:eu-west-1:110966697890:layer:lambda-git-x86_64:1 works just fine, but arn:aws:lambda:eu-west-1:110966697890:layer:lambda-git-arm64:1 fails with the aforementioned error.

Expected Behavior

The layer should be downloaded successfully.

How are you starting LocalStack?

With a docker-compose file

Steps To Reproduce

How are you starting localstack (e.g., bin/localstack command, arguments, or docker-compose.yml)

Docker-Compose + SLS plugin

Environment

- OS: macOS Monterey
- LocalStack: 0.13.0 / latest

Anything else?

#4921 (comment)