diff --git a/sahara/cli/sahara_engine.py b/sahara/cli/sahara_engine.py
index 143d2592bf..88c6328fbb 100644
--- a/sahara/cli/sahara_engine.py
+++ b/sahara/cli/sahara_engine.py
@@ -41,6 +41,7 @@ if os.path.exists(os.path.join(possible_topdir,
 i18n.enable_lazy()
 
 
+from sahara.api import acl
 import sahara.main as server
 from sahara.service import ops
 
@@ -48,6 +49,12 @@ from sahara.service import ops
 def main():
     server.setup_common(possible_topdir, 'engine')
 
+    from oslo.config import cfg
+    # NOTE(apavlov): acl.wrap is called here to set up auth_uri value
+    # in context by using keystone functionality (mostly to avoid
+    # code duplication).
+    acl.wrap(None, cfg.CONF)
+
     server.setup_sahara_engine()
 
     ops_server = ops.OpsServer()
diff --git a/sahara/service/ops.py b/sahara/service/ops.py
index a652774f8b..8bc83c4b2f 100644
--- a/sahara/service/ops.py
+++ b/sahara/service/ops.py
@@ -61,7 +61,7 @@ class LocalOps(object):
 
     def terminate_cluster(self, cluster_id):
         context.spawn("cluster-terminating-%s" % cluster_id,
-                      _terminate_cluster, cluster_id)
+                      terminate_cluster, cluster_id)
 
     def run_edp_job(self, job_execution_id):
         context.spawn("Starting Job Execution %s" % job_execution_id,
@@ -100,7 +100,7 @@ class OpsServer(rpc_utils.RPCServer):
         _provision_scaled_cluster(cluster_id, node_group_id_map)
 
     def terminate_cluster(self, cluster_id):
-        _terminate_cluster(cluster_id)
+        terminate_cluster(cluster_id)
 
     def run_edp_job(self, job_execution_id):
         _run_edp_job(job_execution_id)
@@ -246,7 +246,7 @@ def _provision_scaled_cluster(cluster_id, node_group_id_map):
 
 
 @ops_error_handler
-def _terminate_cluster(cluster_id):
+def terminate_cluster(cluster_id):
     ctx = context.ctx()
     cluster = conductor.cluster_get(ctx, cluster_id)
     plugin = plugin_base.PLUGINS.get_plugin(cluster.plugin_name)
diff --git a/sahara/service/periodic.py b/sahara/service/periodic.py
index 0df2b068e5..1288aac038 100644
--- a/sahara/service/periodic.py
+++ b/sahara/service/periodic.py
@@ -25,8 +25,8 @@ from sahara.i18n import _LI
 from sahara.openstack.common import log
 from sahara.openstack.common import periodic_task
 from sahara.openstack.common import threadgroup
-from sahara.service import api
 from sahara.service.edp import job_manager
+from sahara.service import ops
 from sahara.service import trusts
 from sahara.utils import edp
 from sahara.utils import proxy as p
@@ -110,7 +110,7 @@ def _make_periodic_tasks():
                              {'cluster': cluster.name, 'id': cluster.id})
 
                     try:
-                        api.terminate_cluster(cluster.id)
+                        ops.terminate_cluster(cluster.id)
                     except Exception as e:
                         LOG.info(_LI('Failed to terminate transient cluster '
                                  '%(cluster)s with id %(id)s: %(error)s.'),
diff --git a/sahara/tests/unit/service/test_ops.py b/sahara/tests/unit/service/test_ops.py
index 69cb5a134d..76e40507af 100644
--- a/sahara/tests/unit/service/test_ops.py
+++ b/sahara/tests/unit/service/test_ops.py
@@ -113,7 +113,7 @@ class TestOPS(base.SaharaTestCase):
         base_plugins.PLUGINS.get_plugin.return_value = FakePlugin()
         ops.INFRA = FakeINFRA()
         ops.conductor = FakePlugin()
-        ops._terminate_cluster('123')
+        ops.terminate_cluster('123')
         # checking that order of calls is right
         self.assertEqual(['on_terminate_cluster', 'shutdown_cluster',
                          'cluster_destroy'], self.SEQUENCE,
diff --git a/sahara/tests/unit/service/test_periodic.py b/sahara/tests/unit/service/test_periodic.py
index 7614c9f7b3..303dc462fd 100644
--- a/sahara/tests/unit/service/test_periodic.py
+++ b/sahara/tests/unit/service/test_periodic.py
@@ -52,7 +52,7 @@ class TestPeriodicBack(base.SaharaWithDbTestCase):
                                          mock.call(u'3')])
 
     @mock.patch('oslo.utils.timeutils.utcnow')
-    @mock.patch('sahara.service.api.terminate_cluster')
+    @mock.patch('sahara.service.ops.terminate_cluster')
     def test_cluster_terminate(self, terminate_cluster, utcnow):
 
         utcnow.return_value = datetime.datetime(2005, 2, 1, 0, 0)
@@ -84,7 +84,7 @@ class TestPeriodicBack(base.SaharaWithDbTestCase):
         terminate_cluster.assert_has_calls([mock.call(u'1')])
 
     @mock.patch('oslo.utils.timeutils.utcnow')
-    @mock.patch('sahara.service.api.terminate_cluster')
+    @mock.patch('sahara.service.ops.terminate_cluster')
     def test_cluster_not_killed_too_early(self, terminate_cluster, utcnow):
 
         utcnow.return_value = datetime.datetime(2005, 2, 1, second=0)
@@ -97,7 +97,7 @@ class TestPeriodicBack(base.SaharaWithDbTestCase):
         self.assertEqual(terminate_cluster.call_count, 0)
 
     @mock.patch('oslo.utils.timeutils.utcnow')
-    @mock.patch('sahara.service.api.terminate_cluster')
+    @mock.patch('sahara.service.ops.terminate_cluster')
     def test_cluster_killed_in_time(self, terminate_cluster, utcnow):
 
         utcnow.return_value = datetime.datetime(2005, 2, 1, second=0)