fence_compute: Correctly locate all instances to be evacuated

Author: beekhof

fence/agents/compute/fence_compute.py

@@ -103,7 +103,7 @@ def _get_evacuable_images():
 
 def _host_evacuate(options):
 	result = True
-	servers = nova.servers.list(search_opts={'host': options["--plug"]})
+	servers = nova.servers.list(search_opts={'host': options["--plug"], 'all_tenants': 1 })
 	if options["--instance-filtering"] == "False":
 		evacuables = servers
 	else: