Docker build fails on amd64 architecture due to hardcoded 'linux/arm64' platform

[clemea59650]

When deploying this sample on a standard amd64 environment (like GitHub Codespaces), the deployment script forces a docker build for the 'linux/arm64' platform, causing an 'exec format error'. The platform should match the host architecture or be configurable.

[ShutoAraki]

Thanks for the feedback! I understand that this is coming from the ECS container builds, correct?

There was a past discussion about this here and the rationale is that the Arm containers are cheaper so we should default to Arm regardless of the build environment, but there was no other options. So I agree this should be configurable. We have this in our backlog.

For the time being, you can either

1. specify the target architecture in the Dockerfile like you see in this section of README.
   or
2. specify x86 in the CDK stack on this line and this line.