Build an arm64 container image

[silverlyra]

👋🏻 Hello! Thank you for this project. 😄 I’m going to be deploying this to my clusters at work, but I need to run it on arm64 nodes.

This updates the Dockerfile to support cross-compiling the Go binary to a different target platform, and adds a Makefile which uses docker buildx to create amd64 and arm64 images and a multi-arch image manifest to tie them together.

If you’ve not built multi-architecture images before, this guide is a good starting point for what needs to be set up on the host system.

[max-rocket-internet]

Thanks @silverlyra, like it!

Could you add a new section in the README that shows what make command to run to build it? Is that how it's used?

[silverlyra]

Hi @max-rocket-internet – I was hoping you’d start building multi-arch images and pushing them to your Docker Hub, so that users could just install them. 😄

I could add an (e.g.) BUILDING.md with Docker build instructions?

[max-rocket-internet]

I was hoping you’d start building multi-arch images and pushing them to your Docker Hub, so that users could just install them. 😄

I am 100% ready to do this! I just don't get what the makefile does. In my experience it's used for running make build or whatever.

I could add an (e.g.) BUILDING.md with Docker build instructions?

No need for another file, just add another heading under Installation in the README called "Building" and put the required make command there or any relevant info.

[silverlyra]

@max-rocket-internet done

[max-rocket-internet]

Amazing, thank you @silverlyra 🔥