Cache not working

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

I'm trying to use this action to build a multi stage image using a docker compose configuration file. The build is working correctly and the images are pushed to the Google Artifacts registry just fine, but subsequent builds are not taking advantage of the layers cache even though nothing in the repository changed at all.

Expected behaviour

I would expect this to be way higher than 0%

Actual behaviour

Cache seem not to be used at all?

Repository URL

No response

Workflow run URL

No response

YAML workflow

# Setup gcloud CLI
      - uses: "google-github-actions/setup-gcloud@v2"
        if: ${{ env.dryRun == 'false' }}
        with:
          project_id: ${{ env.GCP_PROJECT_ID }}
          version: "482.0.0"

      # This gives us access to buildx
      - name: Set up Docker CLI
        uses: docker/setup-buildx-action@v3

      # Configure Docker to use the gcloud command-line tool as a credential
      # helper for authentication
      - if: ${{ env.dryRun == 'false' }}
        run: |-
          gcloud --quiet auth configure-docker

      # Get the GKE credentials so we can deploy to the cluster
      - uses: google-github-actions/get-gke-credentials@db150f2cc60d1716e61922b832eae71d2a45938f
        if: ${{ env.dryRun == 'false' }}
        with:
          cluster_name: ${{ env.GKE_CLUSTER }}
          location: ${{ env.GCP_LOCATION }}

      - name: Build and Push Docker Images
        uses: docker/bake-action@v5
        env:
          TAG: ${{ steps.release-tag.outputs.tag }}
        with:
          source: "."
          files: "compose.yaml"
          workdir: "./docker"
          push: ${{ env.dryRun == 'false' }}
          load: true

Workflow logs

No response

BuildKit logs

No response

Additional info

No response

Start with the workflow's docker/bake-action@v5 step, compose.yaml, and the surrounding Buildx setup; investigate the cache configuration and the missing workflow and BuildKit logs. Done means a subsequent unchanged build reuses layers, demonstrated by logs or a reproducible workflow configuration.