Add Labspace metadata and use new publish action in GHA

Author: mikesir87

.github/workflows/publish-labspace.yaml

@@ -15,19 +15,13 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
-      # Ensure Compose v2.39.3+ is available (includes bug fixes for publishing)
-      # Can remove this action once default runners include it
-      - name: Set up Docker Compose
-        uses: docker/setup-compose-action@v1
-        with:
-          version: v2.39.3
-
       - name: Log in to DockerHub
         uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
-      - name: Publish Compose file
-        run: |
-          docker compose -f oci://dockersamples/labspace -f .labspace/compose.override.yaml publish ${DOCKERHUB_REPO} --with-env -y
+      - name: Publish Labspace
+        uses: dockersamples/publish-labspace-action@v1
+        with:
+          target_repo: ${{ env.DOCKERHUB_REPO }}

labspace.yaml

@@ -1,3 +1,8 @@
+metadata:
+  id: dockersamples/labspace-dhi-node
+  sourceRepo: github.com/dockersamples/labspace-dhi-node
+  contentVersion: abcd123 # Will be replaced during release process
+
 title: Docker DHI Node Labspace 
 description: |
   A repository containing a Hello World Node.js application consisting of a basic ExpressJS server and Dockerfile pointing to an Debian Base image to demonstrate the use of Docker Hardened Images (DHI)