NH-82144 and NH-81061: multi-runtime lambda layer

[xuan-cao-swi]

Description

Change the build process using docker image for multi-runtime layer.
Reserved the sam build material for extra use (mainly debugging)

Test (if applicable)

Action run: https://github.com/solarwinds/apm-ruby/actions/runs/9485541864

x86_64 ➕ arm64

[cheempz]

Quick question: not seeing the APM library version in the layer name, i.e. there's a trailing - in the layer name:

arn:aws:lambda:us-east-1:858939916050:layer:solarwinds-apm-ruby-arm64-:4

I was expecting

arn:aws:lambda:us-east-1:858939916050:layer:solarwinds-apm-ruby-arm64-6_0_0:4

[xuan-cao-swi]

I was expecting

arn:aws:lambda:us-east-1:858939916050:layer:solarwinds-apm-ruby-arm64-6_0_0:4

Yes, it will be solarwinds-apm-ruby-arm64-6_0_0:4. Currently, because of the repo url point to source 'https://rubygems.pkg.github.com/xuan-cao-swi' so it didn't parse the version

[cheempz]

@xuan-cao-swi I'm wondering about the reason for a slightly different approach here (using SAM container images for ruby) vs open-telemetry/opentelemetry-lambda#1376. It does seem more convenient to use the prefab SAM container, and indeed we don't need to keep our layer build the same as upstream since we have vendor-specific concerns. Mainly curious what was the rationale and your intent going forward.

Oh maybe for our layer you used this approach? https://docs.aws.amazon.com/lambda/latest/dg/ruby-package.html#ruby-package-native

[xuan-cao-swi]

It's mainly because of different version of glibc (ubuntu:latest vs amazonlinux2) for compiling the liboboe. Since all aws ruby lambda runtime start with amazonlinux2 or amazonlinux2023, so when we build our apm-ruby layer, the glibc version have to be aligned with what amazonlinux glibc version. I think it's easier to use sam image so that I am sure the os has the correct glibc version

As upstream (standalone) opentelemetry-sdk doesn't need compile anything with glibc (e.g. liboboe), it doesn't matter which image to use for build.

[cheempz]

LGTM