Description of problem:

system-config-cluster will not allow to configure fencing when a fencing device is added, that is supported by the cluster, but not by system-config-cluster itself. Having such a fence device in cluster.conf makes system-config-cluster to produce a non-fatal traceback and refuses to show any configuration options for that device, or for fencing devices in general.


Version-Release number of selected component (if applicable):

system-config-cluster-1.0.57-15


How reproducible:

Always


Steps to Reproduce:

1. Define  a cluster that utilizes any of fencing devices not supported by s-c-cluster, i.e. "fence_rhevm":
<fencedevices>
  <fencedevice agent="fence_rhevm" ipaddr="10.20.30.40" login="rhev" name="rhev" passwd="rhev"/>
</fencedevices>
2. Open system-config-cluster
3. Try to open Fence Options or the fence device itself


Actual results:

Properties window will not show the requested content and a traceback is given to a terminal window (see below).


Expected results:

Being able to configure fencing with Fence Options menu.


Additional info:

** Traceback given by clicking on Fence Options menu: **

Traceback (most recent call last):
  File "/usr/share/system-config-cluster/ConfigTab.py", line 157, in on_tree_selection_changed
    self.prop_renderer.render_to_layout_area(obj.getProperties(), FENCEDEVICES,type) 
  File "/usr/share/system-config-cluster/FenceDevices.py", line 44, in getProperties
    stringbuf = stringbuf + "%d - " % num + fence_opts[kee] + " " + TYPE
KeyError: u'fence_rhevm'

** Traceback given by clicking on 'rhev' fencing device: **

Traceback (most recent call last):
  File "/usr/share/system-config-cluster/ConfigTab.py", line 163, in on_tree_selection_changed
    self.prop_renderer.render_to_layout_area(obj.getProperties(), obj.getName(),type) 
  File "/usr/share/system-config-cluster/FenceDevice.py", line 27, in getProperties
    pretty_fence_type = self.pretty_fence_names[agent_type]
KeyError: u'fence_rhevm'