Update packetfence.spec

Author: julsemaan

addons/packages/packetfence.spec

@@ -620,7 +620,11 @@ rm -rf $RPM_BUILD_ROOT
 %pre -n %{real_name}
 
 /usr/bin/systemctl --now mask mariadb
-/usr/bin/systemctl stop systemd-logind
+
+# This (extremelly) ugly hack below will make the current processes part of a cgroup other than the one for user-0.slice
+# This will allow for the current shells that are opened to be protected against stopping when we'll be calling isolate below which stops user-0.slice
+# New shells will not be placed into user-0.slice since systemd-logind will be disabled and masked
+/bin/bash -c "/usr/bin/systemctl status user-0.slice | /usr/bin/egrep -o '─[0-9]+' | /usr/bin/sed 's/─//g' | /usr/bin/xargs -I{} /bin/bash -c '/usr/bin/kill -0 {} > /dev/null 2>/dev/null && /usr/bin/echo {} > /sys/fs/cgroup/systemd/tasks'"/usr/bin/systemctl stop systemd-logind
 /usr/bin/systemctl --now mask systemd-logind
 /usr/bin/systemctl daemon-reload