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Add helix image for armv6 raspbian #1083

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@sbomer sbomer commented May 30, 2024

The raspbian 10 helix images were removed in #927, so removing both raspbian/10 Dockerfiles and replacing them with raspbian 12 that has recent enough glibc.

@@ -7,7 +7,7 @@ RUN git config --global user.email builder@dotnet-buildtools-prereqs-docker && \
git clone --depth 1 --single-branch https://github.com/dotnet/arcade /scripts

# Build the rootfs
RUN /scripts/eng/common/cross/build-rootfs.sh armv6 raspbian --skipunmount
RUN /scripts/eng/common/cross/build-rootfs.sh armv6 --skipunmount
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The raspbian arg was only used for the run-arcade-build-rootfs.sh script, and doesn't do anything here.

- Use --platform for base image
- Specify bookworm in build-rootfs
- Set osVersion in manifest.json
- Fix raspbian version in manifest.json
src/raspbian/manifest.json Show resolved Hide resolved
@@ -1,4 +1,4 @@
FROM mcr.microsoft.com/dotnet-buildtools/prereqs:raspbian-10-crossdeps-local as builder
FROM --platform=linux/arm/v7 mcr.microsoft.com/dotnet-buildtools/prereqs:raspbian-12-crossdeps-local as builder
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why are we passing --platform here?

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Should it be linux/arm/v6?

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It shouldn't be necessary at all. That would only be necessary if you were pulling a multi-arch tag which isn't the case here.

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Without --platform I am getting the following in ci:

Dockerfile:1
--------------------
   1 | >>> FROM mcr.microsoft.com/dotnet-buildtools/prereqs:raspbian-12-crossdeps-local as builder
   2 |     
   3 |     ARG ROOTFS_DIR=/crossrootfs
--------------------
ERROR: failed to solve: mcr.microsoft.com/dotnet-buildtools/prereqs:raspbian-12-crossdeps-local: mcr.microsoft.com/dotnet-buildtools/prereqs:raspbian-12-crossdeps-local: not found
   at Microsoft.DotNet.ImageBuilder.ExecuteHelper.Execute(ProcessStartInfo info, Func`2 executor, Boolean isDryRun, String errorMessage, String executeMessageOverride) in /image-builder/src/ExecuteHelper.cs:line 101
   at Microsoft.DotNet.ImageBuilder.ExecuteHelper.ExecuteWithRetry(ProcessStartInfo info, Action`1 processStartedCallback, Boolean isDryRun, String errorMessage, String executeMessageOverride) in /image-builder/src/ExecuteHelper.cs:line 60
   at Microsoft.DotNet.ImageBuilder.ExecuteHelper.ExecuteWithRetry(String fileName, String args, Boolean isDryRun, String errorMessage, String executeMessageOverride) in /image-builder/src/ExecuteHelper.cs:line 45
   at Microsoft.DotNet.ImageBuilder.DockerService.BuildImage(String dockerfilePath, String buildContextPath, String platform, IEnumerable`1 tags, IDictionary`2 buildArgs, Boolean isRetryEnabled, Boolean isDryRun) in /image-builder/src/DockerService.cs:line 60
   at Microsoft.DotNet.ImageBuilder.DockerServiceCache.BuildImage(String dockerfilePath, String buildContextPath, String platform, IEnumerable`1 tags, IDictionary`2 buildArgs, Boolean isRetryEnabled, Boolean isDryRun) in /image-builder/src/DockerServiceCache.cs:line 37
   at Microsoft.DotNet.ImageBuilder.Commands.BuildCommand.BuildImage(PlatformInfo platform, IEnumerable`1 allTags) in /image-builder/src/Commands/BuildCommand.cs:line 483

IIRC I could build this locally with --platform. I think v7 is right because the raspbian-12-crossdeps image says v7 in manifest.json. Let's see if this works in ci.

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If we are going to replace "armv6" image and new image doesn't provide armv6, then it is not the right image? I think uname -a etc. should show armv6l. v7 and v6 are very different ISAs; which is why we have ARM and ARMV6 as separate architectures.

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Without --platform I am getting the following in ci:

Dockerfile:1
--------------------
   1 | >>> FROM mcr.microsoft.com/dotnet-buildtools/prereqs:raspbian-12-crossdeps-local as builder
   2 |     
   3 |     ARG ROOTFS_DIR=/crossrootfs
--------------------
ERROR: failed to solve: mcr.microsoft.com/dotnet-buildtools/prereqs:raspbian-12-crossdeps-local: mcr.microsoft.com/dotnet-buildtools/prereqs:raspbian-12-crossdeps-local: not found
   at Microsoft.DotNet.ImageBuilder.ExecuteHelper.Execute(ProcessStartInfo info, Func`2 executor, Boolean isDryRun, String errorMessage, String executeMessageOverride) in /image-builder/src/ExecuteHelper.cs:line 101
   at Microsoft.DotNet.ImageBuilder.ExecuteHelper.ExecuteWithRetry(ProcessStartInfo info, Action`1 processStartedCallback, Boolean isDryRun, String errorMessage, String executeMessageOverride) in /image-builder/src/ExecuteHelper.cs:line 60
   at Microsoft.DotNet.ImageBuilder.ExecuteHelper.ExecuteWithRetry(String fileName, String args, Boolean isDryRun, String errorMessage, String executeMessageOverride) in /image-builder/src/ExecuteHelper.cs:line 45
   at Microsoft.DotNet.ImageBuilder.DockerService.BuildImage(String dockerfilePath, String buildContextPath, String platform, IEnumerable`1 tags, IDictionary`2 buildArgs, Boolean isRetryEnabled, Boolean isDryRun) in /image-builder/src/DockerService.cs:line 60
   at Microsoft.DotNet.ImageBuilder.DockerServiceCache.BuildImage(String dockerfilePath, String buildContextPath, String platform, IEnumerable`1 tags, IDictionary`2 buildArgs, Boolean isRetryEnabled, Boolean isDryRun) in /image-builder/src/DockerServiceCache.cs:line 37
   at Microsoft.DotNet.ImageBuilder.Commands.BuildCommand.BuildImage(PlatformInfo platform, IEnumerable`1 allTags) in /image-builder/src/Commands/BuildCommand.cs:line 483

This doesn't make sense to me. This happens on the CI in AzDO? I can't find a failed build with that error. I'd like to see the build log to understand what's happening. Getting a not found error would mean the image tag doesn't exist at all, regardless of its platform.

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If we are going to replace "armv6" image and new image doesn't provide armv6, then it is not the right image?

I am trying to follow the setup introduced in https://github.com/dotnet/dotnet-buildtools-prereqs-docker/pull/550/files#diff-d5da67421f1a1e08a8982140c63e4c621c9332ea33774a4db797a3dc334261b9 where the crossdeps image uses armv7, and it is used to build a rootfs for an armv6 helix image. The intention of adding --platform is to specify the armv7 variant for the crossdeps image, even though we are targeting armv6 in the final stage of this dockerfile. That's the idea, but not sure if our infrastructure supports this.

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@mthalman see the build failures without --platform here.

Locally, if I do docker buildx build --platform=linux/arm/v6 . and I leave out --platform=linux/arm/v7 from the base image, I get this:

BUILDKIT_PROGRESS=plain docker buildx build --platform=linux/arm/v6 .
#0 building with "default" instance using docker driver

#1 [internal] load build definition from Dockerfile
#1 DONE 0.0s

#1 [internal] load build definition from Dockerfile
#1 transferring dockerfile: 2.71kB done
#1 DONE 0.0s

#2 [internal] load metadata for mcr.microsoft.com/dotnet-buildtools/prereqs:raspbian-12-crossdeps-local
#2 ERROR: mcr.microsoft.com/dotnet-buildtools/prereqs:raspbian-12-crossdeps-local: not found
------
 > [internal] load metadata for mcr.microsoft.com/dotnet-buildtools/prereqs:raspbian-12-crossdeps-local:
------
Dockerfile:3
--------------------
   1 |     ARG ROOTFS_DIR=/crossrootfs
   2 |     
   3 | >>> FROM mcr.microsoft.com/dotnet-buildtools/prereqs:raspbian-12-crossdeps-local as builder
   4 |     
   5 |     ARG ROOTFS_DIR
--------------------
ERROR: failed to solve: mcr.microsoft.com/dotnet-buildtools/prereqs:raspbian-12-crossdeps-local: failed to resolve source metadata for mcr.microsoft.com/dotnet-buildtools/prereqs:raspbian-12-crossdeps-local: mcr.microsoft.com/dotnet-buildtools/prereqs:raspbian-12-crossdeps-local: not found

Which looks similar to the CI failure. If I keep --platform=linux/arm/v7 in the dockerfile, it finds the image (which I built using --platform=linux/arm/v7 and tagged locally).

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Ok, I get why --platform is needed now. That's fine. I'll leave it to the other reviewers to determine whether consuming a v7 image from a v6 image is the right thing to do.

@MichaelSimons
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This PR will need to be updated to respond to the following infra changes that were recently made:

@MichaelSimons
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@sbomer - Friendly ping. Is this something you intend to complete? This PR is pretty old now.

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