Sosreport is a cool support data collection utility written in python and availble for RHEL/CentOS, Fedora, Ubuntu & Debian. It can collect lots of useful system files and stats that you might use to debug a server or send to a support organisation to help you.
I've packaged up my plugin for review by the community before I submit upstream to the sosreport project.
You can install and run it from a RHEL/CentOS 6 system like so:
$ yum install http://www.trellisnet.co.uk/rpms/eucalyptus-sos-plugin-0.1-0.el6.noarch.rpm $ source ~/path/to/your/eucarc $ sosreport
This should produce a tarball in /tmp that also contains useful Eucalyptus command output.
Please test it and let me know what you think, suggestions & patches welcome!