Add debug step to action

Author: bmhughes

.github/workflows/ci.yml

@@ -48,12 +48,20 @@ jobs:
       - name: Check out code
         uses: actions/checkout@master
       - name: Install Chef
-        uses: actionshub/chef-install@master
+        uses: actionshub/chef-install@main
       - name: Dokken
-        uses: actionshub/kitchen-dokken@master
+        uses: actionshub/kitchen-dokken@main
         env:
           CHEF_LICENSE: accept-no-persist
           KITCHEN_LOCAL_YAML: kitchen.dokken.yml
         with:
           suite: ${{ matrix.suite }}
           os: ${{ matrix.os }}
+      - name: Print debug output on failure
+        if: failure()
+        run: |
+            set -x
+            sudo journalctl -l --since today
+            sudo docker version
+            sudo docker info
+            KITCHEN_LOCAL_YAML=kitchen.dokken.yml /usr/bin/kitchen exec ${{ matrix.suite }}-${{ matrix.os }} -c "journalctl -l"