remove id field from CDM

There are 3 related fields(id, uuid and hostname) in ComputeNode[1].
according to [2], after nova api 2.53, the id of the hypervisor as a UUID.
and service.host is equal to hypervisor name for compute node.
so we can remove id and only keep uuid then set uuid to node.id

[1]:https://github.com/openstack/watcher/blob/master/watcher/decision_engine/model/collector/nova.py#L306
[2]:https://developer.openstack.org/api-ref/compute/?expanded=list-hypervisors-details-detail#list-hypervisors-details

Change-Id: Ie1d1ad56808270d936ec25186061f7f12cc49fdc
Closes-Bug: #1835192
Depends-on: I752fbfa560313e28e87d83e46431c283b4db4f23
Depends-on: I0975500f359de92b6d6fdea2e01614cf0ba73f05

watcher/applier/actions/change_nova_service_state.py

@@ -50,6 +50,7 @@ class ChangeNovaServiceState(base.BaseAction):
 
     STATE = 'state'
     REASON = 'disabled_reason'
+    RESOURCE_NAME = 'resource_name'
 
     @property
     def schema(self):
@@ -82,7 +83,7 @@ class ChangeNovaServiceState(base.BaseAction):
 
     @property
     def host(self):
-        return self.resource_id
+        return self.input_parameters.get(self.RESOURCE_NAME)
 
     @property
     def state(self):