Confusing error when doing multi-platform builds with the containerd driver. #174
Description
Contributing guidelines
- I've read the contributing guidelines and wholeheartedly agree
I've found a bug, and:
- The documentation does not mention anything about my problem
- There are no open or closed issues that are related to my problem
Description
Not sure exactly if this is an issue with how this action is setting things up, but going to start by noting the issue I had here. Feel free me to bounce me over to docker daemon people or containerd folks if they are who I should report this to.
When running a multi-platform build for linux/arm/v7 on the latest ubuntu runner, I got a somewhat unintelligible error during build:
0.650 exec /bin/sh: exec format error
ERROR: failed to build: failed to solve: process "/bin/sh -c which ls" did not complete successfully: exit code: 255
TL;DR: This would happen on any RUN command I tried until I used the setup-qemu-action to get QEMU on the runner.
After finding the solution, everything works just fine. However I am just confused why the build process would even attempt to start without having the needed emulators, and produce this error. I am using the containerd driver which your action helped me configure:
$ docker info -f '{{ .DriverStatus }}'
[[driver-type io.containerd.snapshotter.v1]]And the builder instances report that they have multi-platform support (although not sure that means much because the default builder also reports multiple platforms but can not build for those).
$ docker buildx ls
NAME/NODE DRIVER/ENDPOINT STATUS BUILDKIT PLATFORMS
default docker
\_ default \_ default running v0.20.2 linux/amd64 (+3), linux/arm64, linux/arm (+2), linux/ppc64le, (6 more)
setup-docker-action* docker
\_ setup-docker-action \_ setup-docker-action running v0.24.0 linux/amd64 (+3), linux/arm64, linux/arm (+2), linux/ppc64le, (5 more)As mentioned at the start, not sure this is the right place for this, but hoping the maintainers here can tell me more about who to ask. Thanks for this action, huge help 👍
Expected behaviour
Some sort of error telling me to install QEMU?
Actual behaviour
Build starts without warning or error and fails with an obscure message.
Repository URL
No response
Workflow run URL
No response
YAML workflow
- name: Set up Docker
uses: docker/setup-docker-action@v4
with:
daemon-config: |
{
"features": {
"containerd-snapshotter": true
}
}
- name: Docker context debug
run: |
docker info -f '{{ .DriverStatus }}'
docker buildx ls
- name: Build docker image
run: docker build --platform linux/arm/v7 .Workflow logs
No response
Docker daemon logs
Additional info
No response