Cache multiple folders with snapshot caching

Currently (v2.9.2), we can only snapshot ↗ a single folder.

To workaround this, we can simply change the default folders of one of the tools we want to cache. For example with docker and runner caches:

      - uses: runs-on/action@v2

      - uses: runs-on/snapshot@v1
        with:
          path: /home/runner/.cache

      - name: Trick to backup /var/lib/docker as well in the same volume
        run: |
          echo '{"data-root": "/home/runner/.cache/docker-data"}' | sudo tee /etc/docker/daemon.json > /dev/null
          sudo systemctl restart docker

Most of the tools support updating their caching folder, the logic is quite simple.

Last updated: October 22, 2025

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