How to output token and pass to other action when using Direct WIF

[mike-pt]

Docs are a bit lacking into how to do this with Direct WIF but I bumped into to this sample from: docker/login-action#640 (comment)

      # Setup Google Cloud SDK
      - uses: 'google-github-actions/auth@v2'
        with:
          workload_identity_provider: '${{ env.WORKLOAD_IDENTITY_PROVIDER }}'

      # Authenticate to Google Artifact Registry (GAR)
      - name: Docker Auth
        id: docker-auth
        uses: 'docker/login-action@v3'
        with:
          username: 'oauth2accesstoken'
          password: '${{ steps.auth.outputs.auth_token }}'
          registry: 'us-docker.pkg.dev'

I get no errors in the 1st setup but then login-action fails with , missing password, so I tried to debug the possible different outputs and all seems to be null:

---

steps.auth.outputs.access_token:
steps.auth.outputs.id_token:
steps.auth.outputs.auth_token:
steps.auth.outputs.credentials_file_path:

What am I missing?

[github-actions]

Hi there @mike-pt 👋!

Thank you for opening an issue. Our team will triage this as soon as we can. Please take a moment to review the troubleshooting steps which lists common error messages and their resolution steps.

[sethvargo]

You haven't named your step. There is no step named "auth" in the example provided. You need to add id: '...' for outputs to work between steps: https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/passing-information-between-jobs#example-defining-outputs-for-a-job

[mike-pt]

@sethvargo by now I should have earned that working late hours is never a good idea... See my brain was literally seeing "id" there, and I don't even have the excuse of not knowing its needed for outputs because how else would it work :D

oh well yeah that was the issue of course and it now works :)