nixpkgs/pkgs/tools/package-management/nixops/optional-virtd.patch

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diff --git a/nixops/backends/libvirtd.py b/nixops/backends/libvirtd.py
index bc5f4af7..edd1348b 100644
--- a/nixops/backends/libvirtd.py
+++ b/nixops/backends/libvirtd.py
@@ -8,12 +8,18 @@ import shutil
import string
import subprocess
import time
-import libvirt
from nixops.backends import MachineDefinition, MachineState
import nixops.known_hosts
import nixops.util
+try:
+ import libvirt
+except:
+ class libvirt(object):
+ def __getattribute__(self, name):
+ raise ValueError("The libvirt backend has been disabled because of security issues.")
+
# to prevent libvirt errors from appearing on screen, see
# https://www.redhat.com/archives/libvirt-users/2017-August/msg00011.html