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)

Network management in OpenStack

OpenStack can be managed in a variety of ways, including through the Horizon dashboard, the Neutron API, and the OpenStack CLI. A command-line client, provided by the python-openstackclient package, gives users the ability to execute commands from a shell that interfaces with the Neutron API. To enter the shell, type openstack in a terminal connected to the controller node, like so:

root@controller01:~# openstack 
(openstack)

The openstack shell features tab completion and a help command that lists all of the available commands within the shell. Openstack-related commands can also be executed straight from the Linux command line by using the openstack client like so:

# openstack network list
# openstack server create

The client provides a number of commands that assist with the creation, modification, and deletion of networks, subnets, and ports...