Merge "Generate random heat stack name for cluster"

sahara/conductor/objects.py

@@ -82,6 +82,11 @@ class Cluster(object):
 
         return None
 
+    @property
+    def stack_name(self):
+        extra = self.extra or {}
+        return extra.get('heat_stack_name', self.name)
+
 
 class NodeGroup(object):
     """An object representing Node Group.

sahara/service/heat/heat_engine.py

@@ -59,11 +59,20 @@ class HeatEngine(e.Engine):
 
         target_count = self._get_ng_counts(cluster)
         self._nullify_ng_counts(cluster)
-
+        cluster = self._generate_heat_stack_name(cluster)
         self._launch_instances(cluster, target_count, CREATE_STAGES)
 
         self._update_rollback_strategy(cluster)
 
+    @staticmethod
+    def _generate_heat_stack_name(cluster):
+        cluster = conductor.cluster_get(context.ctx(), cluster)
+        hsn = cluster.name + cluster.id[:8]
+        extra = cluster.extra.to_dict() if cluster.extra else {}
+        extra['heat_stack_name'] = hsn
+        conductor.cluster_update(context.ctx(), cluster, {'extra': extra})
+        return conductor.cluster_get(context.ctx(), cluster)
+
     def _get_ng_counts(self, cluster):
         count = {}
         for node_group in cluster.node_groups:
@@ -179,8 +188,9 @@ class HeatEngine(e.Engine):
     def shutdown_cluster(self, cluster):
         """Shutdown specified cluster and all related resources."""
         try:
-            b.execute_with_retries(heat.client().stacks.delete, cluster.name)
-            stack = heat.get_stack(cluster.name)
+            b.execute_with_retries(
+                heat.client().stacks.delete, cluster.stack_name)
+            stack = heat.get_stack(cluster.stack_name)
             heat.wait_stack_completion(stack)
         except heat_exc.HTTPNotFound:
             LOG.warning(_LW('Did not find stack for cluster. Trying to delete '

sahara/service/heat/templates.py

@@ -25,7 +25,6 @@ from sahara.utils.openstack import base as b
 from sahara.utils.openstack import heat as h
 from sahara.utils.openstack import neutron
 
-
 CONF = cfg.CONF
 LOG = logging.getLogger(__name__)
 
@@ -130,7 +129,7 @@ class ClusterStack(object):
         heat = h.client()
 
         kwargs = {
-            'stack_name': self.cluster.name,
+            'stack_name': self.cluster.stack_name,
             'timeout_mins': 180,
             'disable_rollback': disable_rollback,
             'parameters': {},
@@ -145,13 +144,13 @@ class ClusterStack(object):
                       .format(args=kwargs))
             b.execute_with_retries(heat.stacks.create, **kwargs)
         else:
-            stack = h.get_stack(self.cluster.name)
+            stack = h.get_stack(self.cluster.stack_name)
             self.last_updated_time = stack.updated_time
             LOG.debug("Updating Heat stack {stack} with args: "
                       "{args}".format(stack=stack, args=kwargs))
             b.execute_with_retries(stack.update, **kwargs)
 
-        self.heat_stack = h.get_stack(self.cluster.name)
+        self.heat_stack = h.get_stack(self.cluster.stack_name)
 
     def _need_aa_server_group(self, node_group):
         for node_process in node_group.node_processes:

sahara/service/validations/base.py

@@ -27,7 +27,6 @@ import sahara.plugins.base as plugin_base
 import sahara.service.api as api
 from sahara.utils import general as g
 import sahara.utils.openstack.cinder as cinder
-import sahara.utils.openstack.heat as heat
 import sahara.utils.openstack.nova as nova
 
 
@@ -255,15 +254,6 @@ def check_cluster_unique_name(name):
     if name in [cluster.name for cluster in api.get_clusters()]:
         raise ex.NameAlreadyExistsException(
             _("Cluster with name '%s' already exists") % name)
-    check_heat_stack_name(name)
-
-
-def check_heat_stack_name(cluster_name):
-    if CONF.infrastructure_engine == 'heat':
-        if heat.get_stack(cluster_name, raise_on_missing=False):
-            raise ex.NameAlreadyExistsException(
-                _("Cluster name '%s' is already used as Heat stack name")
-                % cluster_name)
 
 
 def check_cluster_hostnames_lengths(cluster_name, node_groups):

sahara/tests/unit/service/validation/test_cluster_create_validation.py

@@ -18,7 +18,6 @@ import six
 import testtools
 
 from sahara import exceptions
-from sahara import main
 from sahara.service import api
 from sahara.service.validations import clusters as c
 from sahara.service.validations import clusters_schema as c_schema
@@ -95,21 +94,6 @@ class TestClusterCreateValidation(u.ValidationTestCase):
                        "Cluster with name 'test' already exists")
         )
 
-    def test_cluster_create_with_heat_stack_exists(self):
-        main.CONF.set_override('infrastructure_engine', 'heat')
-        self.addCleanup(main.CONF.clear_override, 'infrastructure_engine')
-        data = {
-            'name': 'test-heat',
-            'plugin_name': 'fake',
-            'hadoop_version': '0.1'
-        }
-        self._assert_create_object_validation(
-            data=data,
-            bad_req_i=(1, 'NAME_ALREADY_EXISTS',
-                       "Cluster name 'test-heat' is already "
-                       "used as Heat stack name")
-        )
-
     def test_cluster_create_v_keypair_exists(self):
         self._assert_create_object_validation(
             data={