Building hybrid KVM clouds with Eucalyptus
Eucalyptus is a strange beast, and by that, we do not mean the plant. Created as a project to bridge the gap between private cloud services and AWS, Eucalyptus tries to recreate almost all AWS functionalities in a local environment. Running it is almost like having a small local cloud that is compatible with AWS, and that in turn uses almost the same commands as AWS. It even uses the same names for things as AWS does, so it works with buckets and all of that. This is on purpose, and with consent from Amazon. Having an environment like this is a great thing for everybody since it creates a safe space for developers and companies to deploy and test their instances.
Eucalyptus consists of several parts:
Figure 13.34 – Eucalyptus architecture (http://eucalyptus.cloud, official documentation)
As can be seen from the diagram, Eucalyptus is highly scalable.
An availability zone is one segment that can hold...
