With these changes I was able to build a multi-platform image - https://github.com/users/martin-g/packages/container/package/su2code%2Fbuild-su2

What do you think about adding .github/workflows/docker-image-upload.yml that uses https://github.com/marketplace/actions/build-and-push-docker-images to build an image and push it to https://github.com/orgs/su2code/packages ?

Docker Hub is also an option but then someone will have to setup secrets for docker login. With ghrc.io the GITHUB_TOKEN can be used.

It sounds like it would make our life easier whenever we want to update docker images, so I'm in favor.

Working on it!

The new workflow is added!
An admin will have to enable it!

Hmmm I don't think I'm admin for this repo, where would I find the new workflow for approval?

I am not quite sure!
At https://github.com/martin-g/SU2-Docker-Builds/actions I have only one failed execution complaining that platforms is not under with. I have fixed it and there was no another execution for this workflow ...

What do you see at https://github.com/su2code/Docker-Builds/actions ?

Using

push: 
  branches: 
    - "**" 

enabled it for my fork - https://github.com/martin-g/SU2-Docker-Builds/runs/6210959935?check_suite_focus=true!
Let me fix this problem!

Question: do you want the tag to be a date as before or latest is OK ?

I think a date would be better, we could then test changes before running regression on a new image.
I see the default stuff:

OK! I will change it to date +%d%m%y!

The workflow will appear once it is merged to master branch!
For now it is only in my fork - https://github.com/martin-g/SU2-Docker-Builds/actions

Cool thanks, let me know when you're ready and I'll merge the PR, we'll see if the workflow appears.

@pcarruscag This PR is ready for review!

It took me a while to figure out an issue with the permission to write the Docker package from the workflow.
At the end https://github.com/su2code/Docker-Builds/pull/1/files#diff-d130011db05f6b8224764d054b12e024eabe39d77d358324dd6f08b09591262fR3-R4 solved it!
I hope this will be enough for the push to master. But if it is not enough then we may need someone with admin rights for this repo to click few checkboxes in the Github UI.

Alright, let's see if it works

It's there https://github.com/su2code/Docker-Builds/actions/workflows/docker-image-upload.yml
Thanks for all the work! Please see if everything behaves as you expect.

The workflow failed - https://github.com/su2code/Docker-Builds/actions/runs/2271410730
I'll send a new PR with improvements!