Merge "Mark the Sheepdog driver unsupported"

cinder/volume/drivers/sheepdog.py

@@ -454,6 +454,10 @@ class SheepdogDriver(driver.VolumeDriver):
     # ThirdPartySystems wiki page
     CI_WIKI_NAME = "Cinder_Jenkins"
 
+    # TODO(jsbryant) Remove this driver in the 'U' release as it is no
+    # longer maintained.
+    SUPPORTED = False
+
     def __init__(self, *args, **kwargs):
         super(SheepdogDriver, self).__init__(*args, **kwargs)
         self.configuration.append_config_values(sheepdog_opts)

doc/source/reference/support-matrix.ini

@@ -243,7 +243,7 @@ driver.pure=complete
 driver.qnap=complete
 driver.quobyte=complete
 driver.rbd=complete
-driver.sheepdog=complete
+driver.sheepdog=missing
 driver.storpool=complete
 driver.synology=complete
 driver.vrtsaccess=complete

releasenotes/notes/sheepdog-mark-unsupported-648b2458d4a198de.yaml

@@ -0,0 +1,14 @@
+---
+upgrade:
+  - |
+    The Sheepdog 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.
+deprecations:
+  - |
+    The Sheepdog 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. The driver
+    is scheduled for removal in the 'U' release.