start pipeline server init

roles/storage_api/templates/disk_service.py

@@ -77,7 +77,7 @@ def get_crystal_disk_info():
             
             if any(value is not None for value in data.values()):
                 drives.append(data)
-                data["Hostname"] =  {{ hostname_output.stdout_lines[0] }}
+                data["Hostname"] =  "{{ hostname_output.stdout_lines[0] }}"
 
         if not drives:
             raise ValueError("No drive data found")