Book Image

Learning OpenStack Networking - Third Edition

By : James Denton
Book Image

Learning OpenStack Networking - Third Edition

By: James Denton

Overview of this book

OpenStack Networking is a pluggable, scalable, and API-driven system to manage physical and virtual networking resources in an OpenStack-based cloud. Like other core OpenStack components, OpenStack Networking can be used by administrators and users to increase the value and maximize the use of existing datacenter resources. This third edition of Learning OpenStack Networking walks you through the installation of OpenStack and provides you with a foundation that can be used to build a scalable and production-ready OpenStack cloud. In the initial chapters, you will review the physical network requirements and architectures necessary for an OpenStack environment that provide core cloud functionality. Then, you’ll move through the installation of the new release of OpenStack using packages from the Ubuntu repository. An overview of Neutron networking foundational concepts, including networks, subnets, and ports will segue into advanced topics such as security groups, distributed virtual routers, virtual load balancers, and VLAN tagging within instances. By the end of this book, you will have built a network infrastructure for your cloud using OpenStack Neutron.
Table of Contents (16 chapters)

Summary

In this chapter, I demonstrated how to attach instances to networks and mapped out the process of an instance obtaining its IP address from an OpenStack-managed DHCP server. I also showed you how an instance reaches out to the metadata service when connected to a VLAN provider network. The same examples in this chapter can be applied to any recent OpenStack cloud and many different network topologies.

For additional details on deployment scenarios based on provider networks, refer to the following upstream documentation for the Pike release of OpenStack at the following locations:

Open vSwitch: https://docs.openstack.org/neutron/pike/admin/deploy-ovs-provider.html

Linux bridge:

https://docs.openstack.org/neutron/pike/admin/deploy-lb-provider.html

In the next chapter, we will learn how to leverage Neutron security group functionality to provide network-level security...