build-push-to-dockerhub for arm takes ~15 minutes to complete

[Pokom]

grafana/cloudcost-exporter is using the build-push-to-dockerhub action to publish containers. One pain point is that the arm builds take upwards for 15 minutes to complete and without knowing this firsthand, it appears like the action hangs. I wonder if there's anything that we can do to speed up the arm builds? If it wasn't a shared action, I would follow @\julienduchesne's advice and build the binary first without using buildx and then add the binary at build time.

Is there a way the shared-workflows could support this in current state?

[iainlane]

Hey @Pokom, sorry for the delay.

One thing you could do currently is use dockerhub-login and handle the building yourself.

Then you can use GOARCH to cross-compile and then copy the binary into your container, instead of using the emulation, which can be slow.

Would that work for you?