WIP -- do not merge -- ensure pcs resource create commands run on just one node

We want to avoid getting unlucky and running the exact "pcs resource
create" command on two nodes at once which can destabilize pacemaker
(although this is not a problem upstream).  So, this commit adds a
parameter, cluster_control_ip as the one IP to run "pcs resource
create" commands from.

So far, this seems to work.  This covers the majority of pcs resources, but I need to add logic for filesystem and mysql.