Mark MacroSAN Driver Unsupported

The MacroSAN driver CI has not been reporting
for longer than a month.

As a result this patch marks the driver
unsupported.  It will be removed in the 'V'
release if there is no change in CI support.

Change-Id: I74a6a0eddf7f9e5c72ffd78cd53093189497ed48

cinder/volume/drivers/macrosan/driver.py

@@ -78,6 +78,9 @@ class MacroSANBaseDriver(driver.VolumeDriver):
 
     CI_WIKI_NAME = 'MacroSAN Volume CI'
 
+    # TODO(jsbryant) Remove driver in 'V' release if CI is not fixed.
+    SUPPORTED = False
+
     def __init__(self, *args, **kwargs):
         """Initialize the driver."""
         super(MacroSANBaseDriver, self).__init__(*args, **kwargs)

doc/source/reference/support-matrix.ini

@@ -219,7 +219,7 @@ driver.kaminario=complete
 driver.lenovo=complete
 driver.linbit_linstor=complete
 driver.lvm=complete
-driver.macrosan=complete
+driver.macrosan=missing
 driver.nec=complete
 driver.netapp_ontap=complete
 driver.netapp_solidfire=complete

releasenotes/notes/macrosan_driver_unsupported-b25f7a3b8270fa61.yaml

@@ -0,0 +1,14 @@
+---
+upgrade:
+  - |
+    The MacroSAN Storage driver has been marked as unsupported
+    and is now deprecated.  ``enabled_unsupported_driver`` will need
+    to be set to ``True`` in the driver's section in cinder.conf to
+    continue to use the driver.
+deprecations:
+  - |
+    The MacroSAN Storage driver has been marked as unsupported and
+    is now deprecated.  ``enable_unsupported_driver`` will need to be
+    set to ``True`` in the driver's section in cinder.conf to
+    continue to use the driver.  It its support status does not change
+    the driver will be removed in the 'V' development cycle.