Log reauth

Log a debug message when SDK logic triggers a reauth.

Reauth is a significant event that dev and ops may want logged.

Change-Id: I111db62dc7320e6c9429040e36ceb14da2e2bf9d

openstack/auth/access.py

@@ -15,12 +15,15 @@
 # limitations under the License.
 
 import datetime
+import logging
 
 from oslo_utils import timeutils
 
 from openstack.auth import service_catalog as catalog
 
 
+logger = logging.getLogger(__name__)
+
 # Do not use token before expiration
 BEST_BEFORE_SECONDS = 30
 
@@ -70,7 +73,12 @@ class AccessInfo(object):
         """
         norm_expires = timeutils.normalize_time(self.expires)
         soon = (timeutils.utcnow() + datetime.timedelta(seconds=best_before))
-        return norm_expires < soon
+        expiring = norm_expires < soon
+
+        if expiring:
+            logger.debug("Token expiring at %s", norm_expires)
+
+        return expiring
 
     @classmethod
     def is_valid(cls, body, **kwargs):

openstack/auth/identity/base.py

@@ -15,6 +15,8 @@ The base identity plugin.  Identity plugins must define the authorize method.
 For examples of this class, see the v2 and v3 authentication plugins.
 """
 
+import logging
+
 import abc
 
 import six
@@ -22,6 +24,9 @@ import six
 from openstack.auth import base
 
 
+logger = logging.getLogger(__name__)
+
+
 @six.add_metaclass(abc.ABCMeta)
 class BaseIdentityPlugin(base.BaseAuthPlugin):
 
@@ -106,6 +111,7 @@ class BaseIdentityPlugin(base.BaseAuthPlugin):
         :returns AccessInfo: Valid AccessInfo
         """
         if self._needs_reauthenticate():
+            logger.debug("Re-authentication required")
             self.access_info = self.authorize(transport)
 
         return self.access_info