Fog needs to get updated to get rid of the error:
Fog initialization failed - undefined method `security_groups' for class `Fog::Compute::OpenStack::Server'

These did the trick for getting rid of it:
ruby193-rubygem-excon-0.20.1-1.el6.noarch.rpm
ruby193-rubygem-fog-1.10.1-9.el6.noarch.rpm
ruby193-rubygem-net-scp-1.1.0-2.el6.noarch.rpm
ruby193-rubygem-net-ssh-2.6.7-1.el6.noarch.rpm