From c690fe7cbd0d307d92689f4fae03423aa7a91157 Mon Sep 17 00:00:00 2001
From: Takashi Kajinami <kajinamit@oss.nttdata.com>
Date: Mon, 27 Nov 2023 11:32:33 +0900
Subject: [PATCH] Deprecate Windows OS support

Unfortunately the Winstackers project has been retired because of no
maintainers[1][2], and OpenStack on Windows host is no longer
maintained.

[1] https://lists.openstack.org/pipermail/openstack-discuss/2022-November/031044.html
[2] https://review.opendev.org/c/openstack/governance/+/886880

Change-Id: Ic9438ac444734c397cbc814cfee82f4f60abfd74
---
 cinder/service.py                             |  2 ++
 cinder/volume/drivers/windows/iscsi.py        |  2 ++
 cinder/volume/drivers/windows/smbfs.py        |  2 ++
 doc/source/reference/support-matrix.ini       |  4 ++--
 ...cate-windows-support-4667f38d71fa8ad6.yaml | 21 +++++++++++++++++++
 5 files changed, 29 insertions(+), 2 deletions(-)
 create mode 100644 releasenotes/notes/deprecate-windows-support-4667f38d71fa8ad6.yaml

diff --git a/cinder/service.py b/cinder/service.py
index a45d48f679b..35e771bb67f 100644
--- a/cinder/service.py
+++ b/cinder/service.py
@@ -666,6 +666,8 @@ class WindowsProcessLauncher(object):
         self._signal_handler = service.SignalHandler()
         self._add_signal_handlers()
 
+        LOG.warning("Support for Windows operating systems is deprecated.")
+
     def add_process(self, cmd):
         LOG.info("Starting subprocess: %s", cmd)
 
diff --git a/cinder/volume/drivers/windows/iscsi.py b/cinder/volume/drivers/windows/iscsi.py
index 9ca2b360889..030ffa5ba18 100644
--- a/cinder/volume/drivers/windows/iscsi.py
+++ b/cinder/volume/drivers/windows/iscsi.py
@@ -58,6 +58,8 @@ class WindowsISCSIDriver(driver.ISCSIDriver):
     # ThirdPartySystems wiki page
     CI_WIKI_NAME = "Microsoft_iSCSI_CI"
 
+    SUPPORTED = False
+
     def __init__(self, *args, **kwargs):
         super(WindowsISCSIDriver, self).__init__(*args, **kwargs)
         self.configuration = kwargs.get('configuration', None)
diff --git a/cinder/volume/drivers/windows/smbfs.py b/cinder/volume/drivers/windows/smbfs.py
index 3ee552813b2..b168ce3aa06 100644
--- a/cinder/volume/drivers/windows/smbfs.py
+++ b/cinder/volume/drivers/windows/smbfs.py
@@ -89,6 +89,8 @@ class WindowsSmbfsDriver(remotefs_drv.RevertToSnapshotMixin,
     # ThirdPartySystems wiki page
     CI_WIKI_NAME = "Cloudbase_Cinder_SMB3_CI"
 
+    SUPPORTED = False
+
     _MINIMUM_QEMU_IMG_VERSION = '1.6'
 
     _SUPPORTED_IMAGE_FORMATS = [_DISK_FORMAT_VHD,
diff --git a/doc/source/reference/support-matrix.ini b/doc/source/reference/support-matrix.ini
index 4cf4cf65524..1072da22891 100644
--- a/doc/source/reference/support-matrix.ini
+++ b/doc/source/reference/support-matrix.ini
@@ -313,8 +313,8 @@ driver.vrtsaccess=missing
 driver.vrtscnfs=missing
 driver.vzstorage=missing
 driver.vmware=complete
-driver.win_iscsi=complete
-driver.win_smb=complete
+driver.win_iscsi=missing
+driver.win_smb=missing
 driver.yadro=complete
 driver.zadara=complete
 
diff --git a/releasenotes/notes/deprecate-windows-support-4667f38d71fa8ad6.yaml b/releasenotes/notes/deprecate-windows-support-4667f38d71fa8ad6.yaml
new file mode 100644
index 00000000000..cca38c7647a
--- /dev/null
+++ b/releasenotes/notes/deprecate-windows-support-4667f38d71fa8ad6.yaml
@@ -0,0 +1,21 @@
+---
+upgrade:
+  - |
+    The following drivers have been marked as unsupported and are now
+    deprecated. ``enable_unsupported_driver`` will need to be set to ``True``
+    in the driver's section in cinder.conf to continue to use these drivers.
+
+    - ``Windows iSCSI Driver``
+    - ``Windows SMB Driver``
+
+deprecations:
+  - |
+    Support for running Cinder in Windows operating systems has been deprecated
+    because of retirement of the Winstackers project.
+
+  - |
+    The following drivers have been marked as unsupported and are now
+    deprecated.
+
+    - ``Windows iSCSI Driver``
+    - ``Windows SMB Driver``