godot-ci:mono-4.5.1 image is using wrong Ubuntu and .NET versions again

[jkuhl-dev]

The barichello/godot-ci:mono-4.5.1 docker image is using the wrong Ubuntu and .NET versions:

https://hub.docker.com/layers/barichello/godot-ci/mono-4.5.1/images/sha256-9320ae8a8ae8d539ee1058e9e8f0b7c8ecf65cb056bf49e64f5103bcecdda404

This should be using Ubuntu 24.04 and .NET 9.0 like the mono-4.5 image does:

https://hub.docker.com/layers/barichello/godot-ci/mono-4.5/images/sha256-9306d6859117efc52c7a95941ebdcbe4788b3d0670d03bd3e9df9cd2ae2830fe

---

This issue has happened before around the time the 4.5 images were released:

• Godot 4.5 Docker images using wrong Ubuntu and .NET versions #186
• Godot 4.5 Mono Docker image using wrong Ubuntu and .NET versions #187

What can we do to solve this issue and prevent it from happening again with future Godot updates? An integration test that checks the versions would help flag these broken images before shipping. I am happy to contribute here once we have a set approach for fixing the problem.

[jkuhl-dev]

It looks like the issue is that the Godot 4.5.1 image was automatically generated by the Release workflow which has not been updated to use .NET 9.0 for Godot 4.5.x yet.

https://github.com/abarichello/godot-ci/blob/master/.github/workflows/release.yml

    steps:
      - id: calculate
        run: |
          REF_NAME=${{ github.ref_name }}
          echo "version=${REF_NAME%-*}" >> $GITHUB_OUTPUT
          echo "release_name=${REF_NAME#*-}" >> $GITHUB_OUTPUT
          MAJOR_VERSION=$(echo ${REF_NAME%-*} | cut -c -1)
          MINOR_VERSION=$(echo ${REF_NAME%-*} | cut -c -3)
          if [ "$MAJOR_VERSION" = "3" ]
          then
              echo "dotnet_version=mono:latest" >> $GITHUB_OUTPUT
          elif [ "$MINOR_VERSION" = "4.0" ] || [ "$MINOR_VERSION" = "4.1" ] || [ "$MINOR_VERSION" = "4.2" ] || [ "$MINOR_VERSION" = "4.3" ]
          then
              echo "dotnet_version=mcr.microsoft.com/dotnet/sdk:6.0-jammy" >> $GITHUB_OUTPUT
          else
              echo "dotnet_version=mcr.microsoft.com/dotnet/sdk:8.0-jammy" >> $GITHUB_OUTPUT
          fi      

The .NET version is being defined in 3 different places in this repo which is making it hard to keep everything aligned:

• godot-ci/.github/workflows/manual_build.yml

  Line 25 in b1b4afb

  dotnet_version: ${{ steps.calculate.outputs.dotnet_version }}

• godot-ci/.github/workflows/release.yml

  Line 14 in b1b4afb

  dotnet_version: ${{ steps.calculate.outputs.dotnet_version }}

• godot-ci/mono.Dockerfile

  Line 1 in b1b4afb

  ARG IMAGE="mcr.microsoft.com/dotnet/sdk:9.0-noble"

I can raise a PR to fix this but we will run into the same issue again next time the .NET version is bumped. We should try to de-duplicate here as much as possible to improve maintainability and either automate the .NET version bump to go along with the automated releases or fail builds when a Godot version does not have a defined .NET version.

[dogboydog]

The same is true with the mono-4.6 image. I can't use dotnet SDK 9 in my CI workflows due to this

[jkuhl-dev]

Yep all automatically released images are going to have this problem until the issue is resolved. If no one reviews my PR that would fix this going forward I'll start publishing my own fork of this image.

[jkuhl-dev]

I would also like to review the need for mono and non-mono images. Mono builds of Godot can build mono and non-mono projects so if the only requirement is building projects then there's no reason to publish 2 different images. I would assume the non-mono images are smaller which might be a factor here but not sure how much that matters. I'll table that for now until we get some traction on fixing the existing setup.

[Calinou]

#190 has been merged, so please try the 4.6 image in an hour from now.

I've also started a manual build for 4.5.1.stable which should fix it as well.

[jkuhl-dev]

Great thank you! I would be interested in helping maintain this package if you need it. I have at least a couple hours of bandwidth a week I can spend on triage and improvement.

[Calinou]

I would be interested in helping maintain this package if you need it. I have at least a couple hours of bandwidth a week I can spend on triage and improvement.

I'll let @abarichello weigh in on this.

[dogboydog]

I don't think 4.6 has been re-deployed? Still getting the SDK error . Thanks for your updates though

[jkuhl-dev]

+1, looks like the mono-4.5.1 image has been updated to use dotnet 9.0 but not the mono-4.6 image

[jkuhl-dev]

https://github.com/abarichello/godot-ci/actions/runs/21838723017/job/63016886605

The 'Create New Godot CI Release' job that ran after my PR was merged was skipped. That would explain why the 4.6 image has not been updated. The 4.5.1 image was manually built: https://github.com/abarichello/godot-ci/actions/runs/21838789959

[Calinou]

I just manually ran 4.6.stable and 4.6.1.stable builds, let's see if this fixes it.

On the other hand, it seems tagged releases don't build Mono automatically (or they don't deploy it).

[jkuhl-dev]

Yep that seems to have worked:

• mono-4.6
• mono-4.6.1

ENV DOTNET_VERSION=9.0.13