Make cerberusdashboard independant of sticks

* make sure import sticksclient module does not block cerberusdashboard
* make sure buttons to create ticket are not displayed if module
sticksclient does not exist or if sticks api is not available

Change-Id: Id8a3711963679dce52e7ab15ad617dba24ae0445

cerberusdashboard/api/cerberus.py

@@ -19,7 +19,13 @@ import logging
 from cerberusclient import client as cerberus_client
 from horizon.utils.memoized import memoized  # noqa
 from openstack_dashboard.api import base
-from sticksclient import client as sticks_client
+try:
+    from sticksclient import client as sticks_client
+    from sticksclient.common import exceptions as sticks_exc
+except ImportError:
+    sticks_exc = None
+    sticks_client = None
+    pass
 
 from cerberusdashboard.utils import importutils
 
@@ -130,3 +136,16 @@ def security_alarm_put_ticket_id(request, sa_id, ticket_id):
 def ticket_create(request, data):
     """Create a ticket from a security report."""
     return sticksclient(request).tickets.create(data)
+
+
+def is_sticks_available(request):
+    """Create a ticket from a security report."""
+    if sticks_client is None:
+        LOG.exception("No module named sticksclient")
+        return False
+    try:
+        return isinstance(sticksclient(request).tickets.list(
+            data={'project': request.user.tenant_id}), list)
+    except sticks_exc.CommunicationError as e:
+        LOG.exception(e)
+        return False

cerberusdashboard/exceptions.py

@@ -15,9 +15,13 @@
 #
 
 from cerberusclient.common import exceptions as cerberusclient
-from sticksclient.common import exceptions as sticksclient
+try:
+    from sticksclient.common import exceptions as sticksclient
+    # HTTPInternalServerError is thrown by Redmine when project does not exist
+    # This error may change in the future (refer to sticks client)
+    RECOVERABLE = (sticksclient.HTTPInternalServerError,)
+except ImportError:
+    RECOVERABLE = ()
+    pass
 
 NOT_FOUND = (cerberusclient.HTTPNotFound,)
-# HTTPInternalServerError is thrown by Redmine when project does not exist
-# This error may change in the future (refer to sticks client)
-RECOVERABLE = (sticksclient.HTTPInternalServerError,)

cerberusdashboard/security_alarms/tables.py

@@ -52,7 +52,8 @@ class CreateTicket(tables.BatchAction):
 
     def allowed(self, request, alarm=None):
         """Allow terminate action if instance not currently being deleted."""
-        return not(is_associated(alarm))
+        return not(is_associated(alarm)) \
+            and api.cerberus.is_sticks_available(request)
 
     def action(self, request, alarm_id):
         alarm = api.cerberus.security_alarm_get(request, alarm_id)

cerberusdashboard/security_reports/tables.py

@@ -53,7 +53,8 @@ class CreateTicket(tables.BatchAction):
 
     def allowed(self, request, report=None):
         """Allow terminate action if instance not currently being deleted."""
-        return not(is_associated(report))
+        return not(is_associated(report)) \
+            and api.cerberus.is_sticks_available(request)
 
     def action(self, request, report_id):
         report = api.cerberus.security_report_get(request, report_id)

setup.cfg

@@ -4,7 +4,6 @@ summary = Dashboard for Openstack Cerberus
 description-file =
     README.rst
 author = OpenStack
-version = 1.2-1
 author-email = openstack-dev@lists.openstack.org
 home-page = http://www.openstack.org/
 classifier =