Create testimage.yaml

Author: rollandf

.github/workflows/testimage.yaml

@@ -0,0 +1,37 @@
+name: Test Image Exists
+
+on:
+  workflow_dispatch:  # Allows you to trigger this manually from GitHub UI
+
+env:
+  REGISTRY: nvcr.io
+  REPO: nvstaging/mellanox/network-operator
+  TAG: v25.4.0-beta.1  # You can change this or pass via workflow input
+
+jobs:
+  check-image:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Install skopeo
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y skopeo
+
+    - name: Login to registry
+      uses: docker/login-action@v3
+      with:
+        registry: ${{ env.REGISTRY }}
+        username: ${{ secrets.NVCR_USERNAME }}
+        password: ${{ secrets.NVCR_TOKEN }}
+
+    - name: Check if image exists
+      run: |
+        IMAGE="docker://${{ env.REGISTRY }}/${{ env.REPO }}:${{ env.TAG }}"
+        echo "Checking for image: $IMAGE"
+        if skopeo inspect "$IMAGE" > /dev/null 2>&1; then
+          echo "✅ Image exists!"
+        else
+          echo "❌ Image does not exist."
+          exit 1
+        fi