[Request] Multi-arch CI runs

[tthvo]

Describe the feature

We should run scorecard tests on both amd64 and arm64 on github CI. I think kind should be able to support arm64 as of kind v0.20.0.

Anything other information?

We can just matrix and build the image set as multi-arch.

References:

cryostat-operator/.github/workflows/ci.yaml

Line 223 in 2d38693

build-scorecard:

[andrewazores]

Upstream CI only has amd64 runner hardware, so running arm64 tests would require running them on top of emulation, which will be significantly slower and may negatively impact the test suite (ex. things could time out just because of execution slowness). The images should still be built and published regardless since they will likely be useful for running elsewhere, or if upstream CI does get access to ARM hardware later.

[tthvo]

actions/runner-images#5631

Big sigh :((

I guess we can hook a self-host runner (maybe some machine that we use downstream): https://docs.github.com/en/actions/hosting-your-own-runners/managing-self-hosted-runners/about-self-hosted-runners

[andrewazores]

Possibly. I don't really know that we have any downstream infra that we are able/approved to use that way.