Reports enabled-root for restored instance

Reasons:
- This condition got missed in one of the earlier patchsets.
- When a root-enabled instance's backup is restored, it does not
  reports to service database that root was enabled for
  restored instance.

Changes:
- report_root method added in conductor.
- Reports, if root is enabled for restored instance, through conductor.

Change-Id: I186398e6651421cecb7169e4eec1d6a8a166ee97
Closes-Bug: #1277745

trove/conductor/api.py

@@ -51,3 +51,10 @@ class API(proxy.RpcProxy):
                                               backup_id=backup_id,
                                               sent=sent,
                                               **backup_fields))
+
+    def report_root(self, instance_id, user):
+        LOG.debug("Making async call to cast report_root for instance: %s"
+                  % instance_id)
+        self.cast(self.context, self.make_msg("report_root",
+                                              instance_id=instance_id,
+                                              user=user))

trove/conductor/manager.py

@@ -17,6 +17,7 @@ from trove.common import cfg
 from trove.common import exception
 from trove.common.instance import ServiceStatus
 from trove.conductor.models import LastSeen
+from trove.extensions.mysql import models as mysql_models
 from trove.instance import models as t_models
 from trove.openstack.common import log as logging
 from trove.openstack.common import periodic_task
@@ -128,3 +129,6 @@ class Manager(periodic_task.PeriodicTasks):
                 LOG.debug("Backup %(key)s: %(value)s" % fields)
                 setattr(backup, k, v)
         backup.save()
+
+    def report_root(self, context, instance_id, user):
+        mysql_models.RootHistory.create(context, instance_id, user)

trove/guestagent/datastore/mysql/manager.py

@@ -138,6 +138,7 @@ class Manager(periodic_task.PeriodicTasks):
             MySqlAdmin().enable_root(root_password)
         elif enable_root_on_restore:
             app.secure_root(secure_remote_root=False)
+            MySqlAppStatus.get().report_root('root')
         else:
             app.secure_root(secure_remote_root=True)
 

trove/guestagent/datastore/service.py

@@ -154,3 +154,12 @@ class BaseDbStatus(object):
                 return True
         LOG.error("Time out while waiting for DB status to change!")
         return False
+
+    def report_root(self, user):
+        """Use conductor to update the root-enable status."""
+        LOG.debug("Casting report_root message to conductor.")
+        ctxt = context.TroveContext(user=CONF.nova_proxy_admin_user,
+                                    auth_token=CONF.nova_proxy_admin_pass)
+
+        conductor_api.API(ctxt).report_root(CONF.guest_id, user)
+        LOG.debug("Successfully cast report_root.")