File virt.volume_infos-silence-libvirt-error-message-175.patch of Package salt.14890

From fa621d17371ea6c8eff75460755c0040fcbf13de Mon Sep 17 00:00:00 2001
From: Cedric Bosdonnat <cbosdonnat@suse.com>
Date: Tue, 3 Sep 2019 15:17:46 +0200
Subject: [PATCH] virt.volume_infos: silence libvirt error message (#175)

Even though the volume_infos handles the libvirt exception when a volume
is missing, libvirt was still outputting the error message in the log.
Since this can add noise to the log only record the libvirt error
message in debug level.
---
 salt/modules/virt.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/salt/modules/virt.py b/salt/modules/virt.py
index 0353e6a1f5..96c17bd60b 100644
--- a/salt/modules/virt.py
+++ b/salt/modules/virt.py
@@ -5008,8 +5008,14 @@ def _is_valid_volume(vol):
     the last pool refresh.
     '''
     try:
-        # Getting info on an invalid volume raises error
+        # Getting info on an invalid volume raises error and libvirt logs an error
+        def discarder(ctxt, error):  # pylint: disable=unused-argument
+            log.debug("Ignore libvirt error: %s", error[2])
+        # Disable the libvirt error logging
+        libvirt.registerErrorHandler(discarder, None)
         vol.info()
+        # Reenable the libvirt error logging
+        libvirt.registerErrorHandler(None, None)
         return True
     except libvirt.libvirtError as err:
         return False
-- 
2.20.1