Images are the templates that get copied and spawned in our OpenStack Compute environment. There are a small handful of places where we can get ready-made images for our use. With these images, we are able to get off the ground very quickly, knowing that the community has tested the images.
For Ubuntu, download any of the releases at http://cloud-images.ubuntu.com/releases/.
For CentOS and Fedora images, download them at http://open.eucalyptus.com/wiki/EucalyptusUserImageCreatorGuide_v2.0.
We have already used a public Ubuntu image in Chapter 1, Starting OpenStack Compute, where we used the tool
cloud-publish-tarball to upload this image to our cloud environment. We will recap that and look at an alternative method for ...