[Pacemaker] updating an external stonith plugin?

[Ashley Pittman]

Hello,

We have a external Stonith plugin we've been using happily with
pacemaker 1.0.7 for a while however we'd like to move from RHEL5 to
RHEL6 (1.1.6-3) and the plugin no longer "just works".

Is there a guide for porting plugins from the old interface to the new
one or any example external plugins I could reference.  Currently the
plugin is in bash but we'd prefer it to be in python, all other things
being equal.

Ashley.