Prepared for multi-arch Docker image build, with updated docker-gen

[ocean]

In order to get the pygmy stack running on my Apple M1 arm64 machine, I had to rebuild this image as linux/arm64, which also involved creating Go cross-compiled versions of the docker-gen tool. I went to put in a PR to the original docker-gen repo, but several people have already put in requests for cross-compiled versions of the binaries, and the repo hasn't been touched since 2018.

See my updated version of docker-gen here.

This updated Dockerfile can be built into a multi-arch image version for Docker Hub using these steps:

1. Create a Docker BuildKit build image by running:
   $ docker buildx create --use --name=multi
   Docker will download and run the moby/buildkit image.
2. Build and push the images for 2 architectures by running:
   $ docker buildx build --platform linux/amd64,linux/arm64 --push -t amazeeio/haproxy -f ./Dockerfile .

[ocean]

Updated this PR with HAProxy update to version 2.2 as suggested in PR #6 and #8.

[ocean]

Ping @tobybellwood :-)

[tobybellwood]

Thanks @ocean - promise we're looking into all this atm!

[ocean]

Thanks @tobybellwood 😄

I’m not trying to nag at all, hence the PR, just wanting to contribute. Let me know where I can help out!

Happy to test etc, and I also have a list of the places (I think) where things will need rebuilding/cross-compiling.

[tobybellwood]

Ooh Ooh! Looks like docker-gen now can has arm64 - https://github.com/jwilder/docker-gen/releases/tag/0.7.5

[BrianGilbert]

Thanks @ocean and anyone with scripts that are looking for pygmy I suggest running the following too:

sudo ln -s /usr/local/bin/pygmy-apple /usr/local/bin/pygmy

[duttonw]

docker-gen is now up to 0.8.0

[duttonw]

Hi @twardnw,

When you are able to, can this be merged this to reduce Apple M1 user pain points with trying to use pygmy out of the box.

Regards,

@duttonw

[tobybellwood]

pygmystack/haproxy is multiarch - and handling v2 upgrade at pygmystack/haproxy#12