support ARM & ARM64 architectures

[kamilmirza]

as per title
kindly add support for arm and arm64

[thomseddon]

I will add an arm build to the v2 branch 👍

[thomseddon]

Note to self: https://billglover.me/2018/10/30/multi-architecture-docker-builds/

[etho201]

Any updates on this? In the meantime I've been able to use the pusher/oauth2_proxy since they do provide an ARM build, but I'm having trouble getting it to work with Traefik v2.

[SuperSandro2000]

Until this is done you can build yourself an arm image by simply modifying the Dockerfile. If you put GOARCH=arm right to the other variables right here https://github.com/thomseddon/traefik-forward-auth/blob/master/Dockerfile#L12 it should work.

[thomseddon]

I've added the Dockerfiles but just need to tweak the builds on docker hub, then I'll try to create a manifest :)

[SuperSandro2000]

I'll try to create a manifest :)

Last time I checked this wasn't possible on Docker Hub. Maybe it is on Cloud?
Also any kind of build especially cross compile is teribble slow on Docker Hub and sometimes takes hours to start and build totaling at over 6 hours just to get a 5 MB Image up.

[etho201]

Are you building locally or directly via Docker Hub? I read on another image that ARM variants can be built on x86_64 hardware using multiarch/qemu-user-static.

[thomseddon]

So this is stuck as it's not completely obvious how to actually get these built on docker hub....I've found a few examples using qemu, but I don't have a readily available arm setup to test this on - if someone has experience with this and/or an existing environment they can test it in, I would hugely appreciate a PR to get this working!

[SuperSandro2000]

My suggestion would be building it on travis.
It would roughly look like the following. There is an alternative available called buildx but this can't be parallelized in multiple jobs.

• build each image seperately and push it to docker hub with the tags arm-latest, arm-$VERSION.
• creating the manifest

docker manifest create traefik-forward-auth:latest arm-latest arm64-latest amd64-latest

• annotating the manifest

docker manifest annotate traefik-forward-auth:latest traefik-forward-auth:amd64-latest --os linux --arch amd64
docker manifest annotate traefik-forward-auth:latest traefik-forward-auth:arm64-latest --os linux --arch arm64 --variant v8
docker manifest annotate traefik-forward-auth:latest traefik-forward-auth:arm-latest --os linux --arch arm --variant v7

• pushing the latest and $VERSION manifest

docker manifest push traefik-forward-auth:latest

I am not 100% percent certain I extracted the lines correctly from my old script. If you want you can look at the commit where I removed it from my docker images and later replaced it with docker buildx. SuperSandro2000/docker-images@6c274c2

Let me know if this is what you want or if you want to use the newer buildx approach which is way nicer but requires a local docker registry if you don't want to push tests to the official repository.

[julien-vu]

@thomseddon just tried your dockerfile on ARM (rasp4) and it returned a non-zero code.

EDIT: NVM i used the tag 2.1-arm , golden

[Sigi-cz]

@julien-vu Could You please provide the docker build command You used? I still get the non-zero return code when building and can't figure out how to fix it.

go: finding github.com/thomseddon/traefik-forward-auth v0.1.1
go: downloading github.com/thomseddon/traefik-forward-auth v0.1.1
go: extracting github.com/thomseddon/traefik-forward-auth v0.1.1
can't load package: package github.com/thomseddon/traefik-forward-auth/cmd: module github.com/thomseddon/traefik-forward-auth@latest found (v0.1.1), but does not contain package github.com/thomseddon/traefik-forward-auth/cmd
The command '/bin/sh -c CGO_ENABLED=0 GOOS=linux GOARCH=arm GO111MODULE=on go build -a -installsuffix nocgo -o /traefik-forward-auth github.com/thomseddon/traefik-forward-auth/cmd' returned a non-zero code: 1

[thomseddon]

@Sigi-cz it looks like you're pulling v0.1.1, but you will want to pull 2 or 2.1 👍

[Sigi-cz]

@thomseddon I know, but I'm not familiar enough with docker to figure out how to pull the latest commit.
This is the command I used:

docker build https://raw.githubusercontent.com/thomseddon/traefik-forward-auth/master/Dockerfile.arm

But I got it working in the end. I downloaded the zip, unpacked and ran this:

docker build -t thomseddon/traefik-forward-auth:arm -f traefik-forward-auth-master/Dockerfile.arm traefik-forward-auth-master/

Maybe You could add little 'how to compile for arm' into the Readme?

[veverkap]

I'm happy to try and set something up to automated this - I've got a bunch of 32bit Raspbians here.

You can also try docker buildx

[Beanow]

For Docker Swarm mode this doesn't work correctly.

In spite of the -arm labels the OS/ARCH picked up by Docker is amd64.
DockerHub reports this as well on thomseddon/traefik-forward-auth:2-arm
As opposed to say npawelek/traefik-forward-auth:v2.2.0

Assuming their image relates to #112

A direct docker run command will run it.

$ uname -m
armv7l

$ docker run --rm thomseddon/traefik-forward-auth:2-arm --help
Usage:
  traefik-forward-auth [OPTIONS]
...

But deploying a stack like:

version: '3.4'
services:
  fw-auth:
    image: thomseddon/traefik-forward-auth:2-arm
    command: --help
    deploy:
      mode: global

Creates a task similar to this: docker inspect <taskID>

Note: Spec.Placement.Platforms winds up as linux/amd64.

[
    {
        ...
        "Spec": {
            "ContainerSpec": {
                "Image": "thomseddon/traefik-forward-auth:2-arm@sha256:c633d20c76c64b4bcdfce5f6c274c00a4fe1efe092348801a560c43c4c1415af",
                "Labels": {
                    "com.docker.stack.namespace": "fwa"
                },
                "Args": [
                    "--help"
                ],
                "Privileges": {
                    "CredentialSpec": null,
                    "SELinuxContext": null
                }
            },
            "Resources": {},
            "Placement": {
                "Platforms": [
                    {
                        "Architecture": "amd64",
                        "OS": "linux"
                    }
                ]
            },
            "Networks": [
                {
                    "Target": "45aukoqbi64nhg1tepayn0vc6",
                    "Aliases": [
                        "fw-auth"
                    ]
                }
            ],
            "ForceUpdate": 0
        },
        "ServiceID": "xzz2j07wceuynam080ksba87q",
        "NodeID": "r7lspnr6dqp5715gzpx56y27v",
        "Status": {
            "Timestamp": "2020-08-16T19:40:49.0845814Z",
            "State": "pending",
            "Message": "unsupported platform on 1 node",
            "ContainerStatus": {},
            "PortStatus": {}
        },
        ...
    }
]

[SuperSandro2000]

@Beanow Docker Hub can't do manifests easily. If the Image building would be done on some other CI this would be easily possible.

[cottonstar]

Just switched to RPI4 and getting this error - is there a workaround?
oauth The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested

[jd-apprentice]

Just switched to RPI4 and getting this error - is there a workaround? oauth The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested

Probably building the image yourself for that platform?