If you have worked with OpenStack, then you’ve likely reached for a CirrOS (cirros) image more than once.

So, what is CirrOS?

CirrOS (x86_64) is a stripped down Linux (free) distro that can be used for proof-of-concept testing; use it to establish that instances (VMs) can be launched. If you are running an OpenStack environment, then the Glance (imaging) service would be called on to manage the storage of the CirrOS image (either by caching locally, or storing as an object via Swift). Nova-Compute (running on a Compute Node), could then be provided the location of this image to launch an […]