Ubuntu 10.04, code named Lucid Lynx, ships UEC with their server distro. UEC uses Eucalyptus 1.6.2 to provide a private cloud infrastructure.
Getting it to work in a production setting requires a considerable amount of effort because you’ll be facing undocumented issues. Here, effort refers to scanning through forums and mailing lists.
Still, for me the experience was much pleasant compared to fiddling with some proprietary crap acting as a black box. Although, the documentation for Eucalyptus still a bit rough around the edges; if all else fails you have the option of reading the source to find out the intended behaviour. If you use open source stuff in production I don’t have to say how much time this saves.
After some failed attempts to get this shit up and running, the bazzilion things you should not do when installing UEC turned out to be a useful experience. Doing a CD install, selecting to install cloud stuff from the menu takes you on a short path to finish line. Make sure you select a right topology for your installation.
All the nitty gritty details intentionally left out for a later post.
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