Add unsupported status to driver listing

Appending "unsupported" to the driver name in the driver listing
for unsupported drivers. The instance variable "_supported" in
BaseVD is changed to class variable "SUPPORTED" so that the supported
status of drivers can be read after loading the driver modules.

Change-Id: I21ca9137a847873f2ec026520daf8b97603d1888

cinder/interface/util.py

@@ -68,6 +68,7 @@ class DriverInfo(object):
                                         self.class_name)
         self.version = getattr(cls, 'VERSION', None)
         self.ci_wiki_name = getattr(cls, 'CI_WIKI_NAME', None)
+        self.supported = getattr(cls, 'SUPPORTED', True)
 
     def __str__(self):
         return self.class_name

cinder/volume/driver.py

@@ -329,6 +329,12 @@ class BaseVD(object):
     # method since the manager will do the check after that.
     SUPPORTS_ACTIVE_ACTIVE = False
 
+    # If a driver hasn't maintained their CI system, this will get
+    # set to False, which prevents the driver from starting.
+    # Add enable_unsupported_driver = True in cinder.conf to get
+    # the unsupported driver started.
+    SUPPORTED = True
+
     def __init__(self, execute=utils.execute, *args, **kwargs):
         # NOTE(vish): db is set by Manager
         self.db = kwargs.get('db')
@@ -364,12 +370,6 @@ class BaseVD(object):
         # set True by manager after successful check_for_setup
         self._initialized = False
 
-        # If a driver hasn't maintained their CI system, this will get
-        # set to False, which prevents the driver from starting.
-        # Add enable_unsupported_driver = True inn cinder.conf to get
-        # the unsupported driver started.
-        self._supported = True
-
     def _driver_data_namespace(self):
         namespace = self.__class__.__name__
         if self.configuration:
@@ -496,7 +496,7 @@ class BaseVD(object):
 
     @property
     def supported(self):
-        return self._supported
+        return self.SUPPORTED
 
     def set_throttle(self):
         bps_limit = ((self.configuration and

cinder/volume/drivers/scality.py

@@ -70,6 +70,10 @@ class ScalityDriver(remotefs_drv.RemoteFSSnapDriver):
     # ThirdPartySystems wiki page
     CI_WIKI_NAME = "Scality_CI"
 
+    # TODO(smcginnis) Either remove this if CI requirements are met, or
+    # remove this driver in the Ocata release per normal deprecation
+    SUPPORTED = False
+
     def __init__(self, *args, **kwargs):
         super(ScalityDriver, self).__init__(*args, **kwargs)
         self.configuration.append_config_values(volume_opts)
@@ -85,10 +89,6 @@ class ScalityDriver(remotefs_drv.RemoteFSSnapDriver):
         # as a config switch to customers.
         self.configuration.scality_sofs_sparsed_volumes = True
 
-        # TODO(smcginnis) Either remove this if CI requirements are met, or
-        # remove this driver in the Ocata release per normal deprecation
-        self._supported = False
-
     def check_for_setup_error(self):
         """Sanity checks before attempting to mount SOFS."""
 

cinder/zonemanager/drivers/fc_zone_driver.py

@@ -41,16 +41,16 @@ class FCZoneDriver(
         fc_common.FCCommon, fczm_driver.FibreChannelZoneManagerDriver):
     """Interface to manage Connection control during attach/detach."""
 
+    # If a driver hasn't maintained their CI system, this will get set
+    # to False, which prevents the driver from starting.
+    # Add enable_unsupported_driver = True in cinder.conf to get the
+    # unsupported driver started.
+    SUPPORTED = True
+
     def __init__(self, **kwargs):
         super(FCZoneDriver, self).__init__(**kwargs)
         LOG.debug("Initializing FCZoneDriver")
 
-        # If a driver hasn't maintained their CI system, this will get set
-        # to False, which prevents the driver from starting.
-        # Add enable_unsupported_driver = True in cinder.conf to get the
-        # unsupported driver started.
-        self._supported = True
-
     @property
     def supported(self):
-        return self._supported
+        return self.SUPPORTED

tools/generate_driver_list.py

@@ -68,8 +68,11 @@ def format_description(desc, output):
 
 def print_drivers(drivers, config_name, output):
     for driver in sorted(drivers, key=lambda x: x.class_fqn):
-        output.write(driver.class_name)
-        output.write('-' * len(driver.class_name))
+        driver_name = driver.class_name
+        if not driver.supported:
+            driver_name += " (unsupported)"
+        output.write(driver_name)
+        output.write('-' * len(driver_name))
         if driver.version:
             output.write('* Version: %s' % driver.version)
         output.write('* %s=%s' % (config_name, driver.class_fqn))