Add strategy_id & goal_id fields in audit template

In this changeset, I updated the 'goal_id' field into the AuditTemplate
to now become a mandatory foreign key towards the Goal model. I also
added the 'strategy_id' field into the AuditTemplate model to be an
optional foreign key onto the Strategy model.

This changeset also includes an update of the /audit_template
Watcher API endpoint to reflect the previous changes.

As this changeset changes the API, this should be merged alongside the
related changeset from python-watcherclient.

Partially Implements: blueprint get-goal-from-strategy

Change-Id: Ic0573d036d1bbd7820f8eb963e47912d6b3ed1a9

watcher_tempest_plugin/tests/api/admin/base.py

@@ -114,15 +114,18 @@ class BaseInfraOptimTest(test.BaseTestCase):
     # ### AUDIT TEMPLATES ### #
 
     @classmethod
-    def create_audit_template(cls, name=None, description=None, goal=None,
-                              host_aggregate=None, extra=None):
+    def create_audit_template(cls, goal_uuid, name=None, description=None,
+                              strategy_uuid=None, host_aggregate=None,
+                              extra=None):
         """Wrapper utility for creating a test audit template
 
+        :param goal_uuid: The goal UUID related to the audit template.
+            Default: DUMMY
         :param name: The name of the audit template. Default: My Audit Template
         :param description: The description of the audit template.
             Default: AT Description
-        :param goal: The goal associated within the audit template.
-            Default: DUMMY
+        :param strategy_uuid: The strategy UUID related to the audit template.
+            Default: dummy
         :param host_aggregate: ID of the host aggregate targeted by
             this audit template. Default: 1
         :param extra: IMetadata associated to this audit template.
@@ -132,8 +135,9 @@ class BaseInfraOptimTest(test.BaseTestCase):
         description = description or data_utils.rand_name(
             'test-audit_template')
         resp, body = cls.client.create_audit_template(
-            name=name, description=description, goal=goal,
-            host_aggregate=host_aggregate, extra=extra)
+            name=name, description=description, goal_uuid=goal_uuid,
+            strategy_uuid=strategy_uuid, host_aggregate=host_aggregate,
+            extra=extra)
 
         cls.created_audit_templates.add(body['uuid'])