restore Heat stack failure logs for CI

We need to see what Heat failures occured
so that we can debug CI failures.

The only way to do this seems to be to use the
private event_utils.get_events function to
query for all failures

Also since we had a failure go ahead and dump the
Heat template that failed.

Sample output:

2018-03-25 23:50:08,765 [INFO] yardstick.orchestrator.heat heat.py:629 Creating stack 'yardstick-460ed969' START
2018-03-25 23:50:21,932 [ERROR] yardstick.orchestrator.heat heat.py:644 Resource CREATE failed: BadRequest: resources.yardstick-460ed969-xe1: Invalid input for operation: physical_network 'nosuch' unknown for flat provider network.
Neutron server returns request_ids: ['req-6f981f1e-a9e2-4114-af84-1ee528aed51b']
2018-03-25 23:50:21,933 [ERROR] yardstick.orchestrator.heat heat.py:644 BadRequest: resources.yardstick-460ed969-xe1: Invalid input for operation: physical_network 'nosuch' unknown for flat provider network.
Neutron server returns request_ids: ['req-6f981f1e-a9e2-4114-af84-1ee528aed51b']
2018-03-25 23:50:21,972 [ERROR] yardstick.orchestrator.heat heat.py:645 {'description': '\n'
                'All referred generated resources are prefixed with the '
                'template\n'
                'name (i.e. yardstick-460ed969).\n',
 'heat_template_version': '2013-05-23',
 'outputs': {'trafficgen_1.yardstick-460ed969': {'description': 'VM UUID',
                                                 'value': {'get_resource': 'trafficgen_1.yardstick-460ed969'}},
             'trafficgen_1.yardstick-460ed969-fip': {'description': 'floating '
                                                                    'ip '
JIRA: YARDSTICK-998

Change-Id: Ia8f4e5ba7e280fb9086519680d5ee90a2b442e6b
Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>

2 files changed, 27 insertions, 1 deletions

diff --git a/yardstick/orchestrator/heat.py b/yardstick/orchestrator/heat.py
index d69f86044..5afa4151e 100644
--- a/yardstick/orchestrator/heat.py
+++ b/yardstick/orchestrator/heat.py
@@ -15,6 +15,7 @@ import datetime
 import getpass
 import logging
 import pkg_resources
+import pprint
 import socket
 import tempfile
 import time
@@ -22,6 +23,7 @@ import time
 from oslo_serialization import jsonutils
 from oslo_utils import encodeutils
 import shade
+from shade._heat import event_utils
 
 import yardstick.common.openstack_utils as op_utils
 from yardstick.common import exceptions
@@ -63,6 +65,10 @@ class HeatStack(object):
 
         self._update_stack_tracking()
 
+    def get_failures(self):
+        return event_utils.get_events(self._cloud, self._stack.id,
+                                      event_args={'resource_status': 'FAILED'})
+
     def get(self):
         """Retrieves an existing stack from the target cloud
 
@@ -625,6 +631,9 @@ name (i.e. %s).
             return stack
 
         if stack.status != self.HEAT_STATUS_COMPLETE:
+            for event in stack.get_failures():
+                log.error("%s", event.resource_status_reason)
+            log.error(pprint.pformat(self._template))
             raise exceptions.HeatTemplateError(stack_name=self.name)
 
         log.info("Creating stack '%s' DONE in %d secs",
diff --git a/yardstick/tests/unit/orchestrator/test_heat.py b/yardstick/tests/unit/orchestrator/test_heat.py
index aae2487aa..9598eeb04 100644
--- a/yardstick/tests/unit/orchestrator/test_heat.py
+++ b/yardstick/tests/unit/orchestrator/test_heat.py
@@ -354,13 +354,30 @@ class HeatTemplateTestCase(unittest.TestCase):
             3600)
         self.assertEqual(heat_stack, ret)
 
-
     def test_create_block_status_no_complete(self):
         heat_stack = mock.Mock()
         heat_stack.status = 'other status'
+        heat_stack.get_failures.return_value = []
         with mock.patch.object(heat, 'HeatStack', return_value=heat_stack):
             self.assertRaises(exceptions.HeatTemplateError,
                               self.template.create, block=True)
         heat_stack.create.assert_called_once_with(
             self.template._template, self.template.heat_parameters, True,
             3600)
+
+    def test_create_block_status_no_complete_with_reasons(self):
+        heat_stack = mock.Mock()
+        heat_stack.status = 'other status'
+        heat_stack.get_failures.return_value = [
+            mock.Mock(resource_status_reason="A reason"),
+            mock.Mock(resource_status_reason="Something else")
+        ]
+        with mock.patch.object(heat, 'HeatStack', return_value=heat_stack):
+            with mock.patch.object(heat, 'log') as mock_log:
+                self.assertRaises(exceptions.HeatTemplateError,
+                                  self.template.create, block=True)
+                mock_log.error.assert_any_call("%s", "A reason")
+                mock_log.error.assert_any_call("%s", "Something else")
+        heat_stack.create.assert_called_once_with(
+            self.template._template, self.template.heat_parameters, True,
+            3600)