Bitwarden_rs: Support armv6 devices like Pi Zero or first Raspberry Pi

[kennymc-c]

I'm trying to get Bitwarden_rs running on a Raspebrry Pi Zero W. After starting via Docker-Compose the process aborts with Exit Code 139 and no bitwarden log is created. The Docker log looks like this:

Feb 23 19:34:38 pizza dockerd[2573]: time="2019-02-23T19:34:38+01:00" level=info msg="shim docker-containerd-shim started" address="/containerd-shim/moby/7e16114071bcc98abf42609816b7d949f35329 Feb 23 19:34:41 pizza dockerd[2573]: time="2019-02-23T19:34:41+01:00" level=warning msg="OOM monitoring failed" error="cgroups: memory cgroup not supported on this system" Feb 23 19:34:42 pizza dockerd[2573]: time="2019-02-23T19:34:42+01:00" level=info msg="shim reaped" id=7e16114071bcc98abf42609816b7d949f35329b9b937ff1bc4848816bdb79c8d Feb 23 19:34:42 pizza dockerd[2573]: time="2019-02-23T19:34:42.801427746+01:00" level=info msg="ignoring event" module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete

Previously it worked fine on a Pi 3. I found a similar issues (#185) where you should use the aarch64 image. On the pi zero however i get the following error message after startup:

standard_init_linux.go:190: exec user process caused "exec format error"

[mprasil]

Can you post output of docker version?

[kennymc-c]

`
Client:
Version: 18.06.3-ce
API version: 1.38
Go version: go1.10.3
Git commit: d7080c1
Built: Wed Feb 20 02:42:54 2019
OS/Arch: linux/arm
Experimental: false

Server:
Engine:
Version: 18.06.3-ce
API version: 1.38 (minimum version 1.12)
Go version: go1.10.3
Git commit: d7080c1
Built: Wed Feb 20 02:38:25 2019
OS/Arch: linux/arm
Experimental: false
`

[mprasil]

And you're using mprasil/bitwarden:raspberry image, right?

[kennymc-c]

right

[mprasil]

I think this is due to the fact, that the image is compiled for armv7hf which won't run on pi zero (and RPi 1?) We use balenalib/armv7hf-debian:stretch for the raspberry image, which probably won't run on armv6 device. Maybe we could find some other base image for pi 1/zero and create special image for those devices?

[kennymc-c]

That would be great. I had already thought that the image was designed for armv7 and that's why it came to this problem. It's actually a bit irritating if the image is called raspberry and not running on the still current Pi Zero models.

[mprasil]

Hi, would you be able to test bitwardenrs/dev:armv6 image on your pi zero? I tried to build the image for armv6 devices, but don't have HW to test it.

It's actually a bit irritating if the image is called raspberry

Agree, it's mostly for historical reasons. Back then we only supported amd64 (x86) and armv7hf (raspberry pi 2+) so I went with that. Now we have alpine images, aarch64 and hopefully armv6, it's getting a bit complicated. I'm going to document all the options.

[kennymc-c]

With bitwardenrs/dev:armv6 i get exit code code 127 with /bin/sh: 1: ./bitwarden_rs: not found in log

[mprasil]

Can you try pulling the latest dev image docker pull bitwardenrs/dev:armv6 and try running it again?

[kennymc-c]

Seems to be working now :) No errors in log but i've only tested the login page so far.

[mprasil]

Thanks for testing. I'll create a PR now and once merged will build official image.

[mprasil]

Okay, image is now building. Once done, (will take about an hour) it will be available as mprasil/bitwarden:armv6.

[mprasil]

If you have a time, once the official image is available, can you please fill in a table at the end of this document? I'm trying to collect all the various boards and what images were tested.