actually move the image to the test job

Signed-off-by: Adrian Cole <[email protected]>

Author: codefromthecrypt

.github/workflows/docker-chatbot-rag-app.yml

@@ -51,6 +51,15 @@ jobs:
           outputs: type=image,name=${{ env.IMAGE }},push-by-digest=true,name-canonical=true,push=${{ github.event_name == 'push' && 'true' || 'false' }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
+      - name: save image
+        if: github.event_name == 'pull_request'
+        run: docker save ${{ env.IMAGE }} -o image.tar
+      - name: upload image artifact
+        if: github.event_name == 'pull_request'
+        uses: actions/upload-artifact@v4
+        with:
+          name: image-${{ matrix.runner }}
+          path: image.tar
       - name: export digest
         if: github.event_name == 'push'
         run: |
@@ -79,16 +88,19 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: download image artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: image-${{ matrix.runner }}
+      - name: load image
+        run: docker load -i image.tar
       - name: start elasticsearch
         run: docker compose -f docker/docker-compose-elastic.yml up elasticsearch -d --wait --wait-timeout 120
       - name: test image
         working-directory: example-apps/chatbot-rag-app
         run: |
-          echo "Testing image ${IMAGE}"
           cp env.example .env
           docker compose run --rm -T create-index
-        env:
-          IMAGE: ${{ needs.build-image.outputs.digest }}
 
   push-manifest:
     runs-on: ubuntu-24.04