Switch to multi-arch build and images

[mahnunchik]

It's been two years since the last discussion of this topic #131

All the software I use has switched to multi-architecture images in docker world. The technology has become stable over the past two years.

Maybe it makes sense to switch to a multi-arc build and multi-arch images. This will greatly simplify the build step of add-ons and save "kilometers" of documentation.

From

Image	OS	Tags	latest
armhf-base	Alpine	3.17 3.18, 3.19, 3.20	3.20
armv7-base	Alpine	3.17 3.18, 3.19, 3.20	3.20
aarch64-base	Alpine	3.17 3.18, 3.19, 3.20	3.20
amd64-base	Alpine	3.17 3.18, 3.19, 3.20	3.20
i386-base	Alpine	3.17 3.18, 3.19, 3.20	3.20

To

Image	OS	Tags	latest
base	Alpine	3.17 3.18, 3.19, 3.20	3.20

---

https://github.com/home-assistant/core/blob/dev/build.yaml#L1-L7

From

image: ghcr.io/home-assistant/{arch}-homeassistant
build_from:
  aarch64: ghcr.io/home-assistant/aarch64-homeassistant-base:2024.06.1
  armhf: ghcr.io/home-assistant/armhf-homeassistant-base:2024.06.1
  armv7: ghcr.io/home-assistant/armv7-homeassistant-base:2024.06.1
  amd64: ghcr.io/home-assistant/amd64-homeassistant-base:2024.06.1
  i386: ghcr.io/home-assistant/i386-homeassistant-base:2024.06.1

To

image: ghcr.io/home-assistant/homeassistant
build_from: ghcr.io/home-assistant/homeassistant-base:2024.06.1

Or even

image: ghcr.io/home-assistant/homeassistant

Together with

FROM: ghcr.io/home-assistant/homeassistant-base:2024.06.1

---

It seems hassio has been already switched https://github.com/hassio-addons/addon-base/pkgs/container/base

[eshattow]

This is blocked on a number of circular dependencies. Firstly the helper falls over when updating the builder to use multi-arch like this since there is a dependency on those individual items to determine the architecture env var to emit. So this work must be coordinated by many different parts and all of them are not possible to simply fork and improve on because they all reference one another. Spaghetti hell of a problem.

[mahnunchik]

Just switch to multi-arch in next major release and the dependencies will be updated. Otherwise, this spaghetti will exits forever...

[eshattow]

I will try to remedy the problem in #260 making this repo able to be cloned and build outside of the home-assistant namespace. We can then properly test multi-arch change before committing.