ci(deploy): assert App Service secrets before calling az

Author: mbertelsen

.github/workflows/docker-deploy.yml

@@ -47,6 +47,11 @@ jobs:
         uses: azure/login@v1
         with:
           creds: ${{ secrets.AZURE_CREDENTIALS }}
+      - name: Assert required App Service secrets are set
+        run: |
+          if [ -z "${{ secrets.EDITOR_APP_NAME }}" ]; then echo "ERROR: secrets.EDITOR_APP_NAME is not set"; exit 1; fi
+          if [ -z "${{ secrets.RESOURCE_GROUP }}" ]; then echo "ERROR: secrets.RESOURCE_GROUP is not set"; exit 1; fi
+          if [ -z "${{ secrets.EDITOR_API_APP_NAME }}" ]; then echo "ERROR: secrets.EDITOR_API_APP_NAME is not set"; exit 1; fi
 
       - name: Deploy editor to App Service (container)
         run: |