In this chapter, we have learned about the various scaling and segregation techniques for building a scalable and responsive compute cluster. We understood the instance scheduling, bootup, and initial configuration process.
We discussed containers and container orchestration systems, and the various concepts of the Magnum project. That should give you a clear idea about the variety of hypervisor technologies supported recently by OpenStack.
We also looked at the requirements from a hardware perspective by refining the decision related to hypervisor selection and how to conduct the best storage outfit for your compute nodes. The chapter detailed how to deploy a new compute node in an existing OpenStack cluster using Ansible that should be a complement to the initiated Ansible setup discussed in Chapter 3, OpenStack Cluster - The Cloud Controller and Common Services.
Another important topic was highlighted...