Merge "Use never expiring alarm_url for resource attributes" into stable/train

heat/engine/resources/aws/autoscaling/scaling_policy.py

@@ -85,7 +85,8 @@ class AWSScalingPolicy(heat_sp.AutoScalingPolicy):
     attributes_schema = {
         ALARM_URL: attributes.Schema(
             _("A signed url to handle the alarm. (Heat extension)."),
-            type=attributes.Schema.STRING
+            type=attributes.Schema.STRING,
+            cache_mode=attributes.Schema.CACHE_NONE
         ),
     }
 
@@ -101,7 +102,7 @@ class AWSScalingPolicy(heat_sp.AutoScalingPolicy):
 
     def get_reference_id(self):
         if self.resource_id is not None:
-            return six.text_type(self._get_ec2_signed_url())
+            return six.text_type(self._get_ec2_signed_url(never_expire=True))
         else:
             return six.text_type(self.name)
 

heat/engine/resources/openstack/heat/scaling_policy.py

@@ -99,7 +99,8 @@ class AutoScalingPolicy(signal_responder.SignalResponder):
     attributes_schema = {
         ALARM_URL: attributes.Schema(
             _("A signed url to handle the alarm."),
-            type=attributes.Schema.STRING
+            type=attributes.Schema.STRING,
+            cache_mode=attributes.Schema.CACHE_NONE
         ),
         SIGNAL_URL: attributes.Schema(
             _("A url to handle the alarm using native API."),
@@ -186,7 +187,7 @@ class AutoScalingPolicy(signal_responder.SignalResponder):
         if self.resource_id is None:
             return
         if name == self.ALARM_URL:
-            return six.text_type(self._get_ec2_signed_url())
+            return six.text_type(self._get_ec2_signed_url(never_expire=True))
         elif name == self.SIGNAL_URL:
             return six.text_type(self._get_heat_signal_url())
 

heat/engine/resources/openstack/mistral/workflow.py

@@ -376,7 +376,8 @@ class Workflow(signal_responder.SignalResponder,
         ALARM_URL: attributes.Schema(
             _("A signed url to create executions for workflows specified in "
               "Workflow resource."),
-            type=attributes.Schema.STRING
+            type=attributes.Schema.STRING,
+            cache_mode=attributes.Schema.CACHE_NONE
         ),
         EXECUTIONS: attributes.Schema(
             _("List of workflows' executions, each of them is a dictionary "
@@ -661,7 +662,7 @@ class Workflow(signal_responder.SignalResponder,
                     self.INPUT: self.properties.get(self.INPUT)}
 
         elif name == self.ALARM_URL and self.resource_id is not None:
-            return six.text_type(self._get_ec2_signed_url())
+            return six.text_type(self._get_ec2_signed_url(never_expire=True))
 
 
 def resource_mapping():

heat/engine/resources/openstack/sahara/job.py

@@ -182,7 +182,8 @@ class SaharaJob(signal_responder.SignalResponder, resource.Resource):
         DEFAULT_EXECUTION_URL: attributes.Schema(
             _("A signed url to create execution specified in "
               "default_execution_data property."),
-            type=attributes.Schema.STRING
+            type=attributes.Schema.STRING,
+            cache_mode=attributes.Schema.CACHE_NONE
         ),
         EXECUTIONS: attributes.Schema(
             _("List of the job executions."),
@@ -298,7 +299,7 @@ class SaharaJob(signal_responder.SignalResponder, resource.Resource):
 
     def _resolve_attribute(self, name):
         if name == self.DEFAULT_EXECUTION_URL:
-            return six.text_type(self._get_ec2_signed_url())
+            return six.text_type(self._get_ec2_signed_url(never_expire=True))
         elif name == self.EXECUTIONS:
             try:
                 job_execs = self.client().job_executions.find(

heat/engine/resources/signal_responder.py

@@ -114,7 +114,8 @@ class SignalResponder(stack_user.StackUser):
                 'region_name': (self.context.region_name or
                                 cfg.CONF.region_name_for_services)}
 
-    def _get_ec2_signed_url(self, signal_type=SIGNAL):
+    def _get_ec2_signed_url(self, signal_type=SIGNAL,
+                            never_expire=False):
         """Create properly formatted and pre-signed URL.
 
         This uses the created user for the credentials.
@@ -158,15 +159,16 @@ class SignalResponder(stack_user.StackUser):
         # need to calculate the signature with the path component unquoted, but
         # ensure the actual URL contains the quoted version...
         unquoted_path = urlparse.unquote(host_url.path + path)
+        params = {'SignatureMethod': 'HmacSHA256',
+                  'SignatureVersion': '2',
+                  'AWSAccessKeyId': access_key}
+        if not never_expire:
+            params['Timestamp'] = timeutils.utcnow().strftime(
+                "%Y-%m-%dT%H:%M:%SZ")
         request = {'host': host_url.netloc.lower(),
                    'verb': SIGNAL_VERB[signal_type],
                    'path': unquoted_path,
-                   'params': {'SignatureMethod': 'HmacSHA256',
-                              'SignatureVersion': '2',
-                              'AWSAccessKeyId': access_key,
-                              'Timestamp':
-                              timeutils.utcnow().strftime("%Y-%m-%dT%H:%M:%SZ")
-                              }}
+                   'params': params}
         # Sign the request
         signer = ec2_utils.Ec2Signer(secret_key)
         request['params']['Signature'] = signer.generate(request)

heat/tests/autoscaling/test_heat_scaling_policy.py

@@ -183,7 +183,6 @@ class ScalingPolicyAttrTest(common.HeatTestCase):
         self.assertEqual('Signature', args[1].split('=')[0])
         self.assertEqual('SignatureMethod', args[2].split('=')[0])
         self.assertEqual('SignatureVersion', args[3].split('=')[0])
-        self.assertEqual('Timestamp', args[4].split('=')[0])
 
     def test_signal_attribute(self):
         heat_plugin = self.stack.clients.client_plugin('heat')