vmdriver: modified shutdown method to accept interrupts

vmdriver.py

@@ -9,6 +9,7 @@ from decorator import decorator
 
 from psutil import NUM_CPUS, virtual_memory, cpu_percent
 
+from celery.contrib.abortable import AbortableTask
 
 from vm import VMInstance
 from vmcelery import celery, lib_connection
@@ -188,27 +189,35 @@ def create(vm_desc):
     return domain_info(vm.name)
 
 
-@celery.task(time_limit=120)
-@req_connection
-def shutdown(name):
+class shutdown(AbortableTask):
     """ Shutdown virtual machine (need ACPI support).
-    Return When domain is missing.
+    Return When domain is missiing.
+    This job is abortable:
+        AbortableAsyncResult(id="<<jobid>>").abort()
     """
+    time_limit = 120
+
+    @req_connection
+    def run(self, **kwargs):
         from time import sleep
+        name = kwargs['name']
         try:
             domain = lookupByName(name)
             domain.shutdown()
             while True:
                 try:
                     Connection.get().lookupByName(name)
-            except Exception as e:
+                except libvirt.libvirtError as e:
                     if e.get_error_code() == libvirt.VIR_ERR_NO_DOMAIN:
                         return
                     else:
                         raise
                 else:
+                    if self.is_aborted(**kwargs):
+                        logging.info("Shutdown aborted on vm: %s", name)
+                        return
                     sleep(5)
-    except Exception as e:
+        except libvirt.libvirtError as e:
             new_e = Exception(e.get_error_message())
             new_e.libvirtError = True
             raise new_e