One from many
nova-agent
For anyone wondering what nova-agent is on a rackspace cloud server.
/usr/sbin/nova-agent -q -p /var/run/nova-agent.pid -o /var/log/nova-agent.log -l info /usr/share/nova-agent/nova-agent.py
# nova-agent Startup script for OpenStack nova guest agent
#
# chkconfig: 2345 15 85
# description: nova-agent is an agent meant to run on unix guest instances \
# being managed by OpenStack nova. Currently only works with \
# Citrix XenServer for manipulating the guest through \
# xenstore.
# processname: nova-agent
# pidfile: /var/run/nova-agent.pid

