Cloud & Networking
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You're reading from  OpenStack Essentials. - Second Edition

Product typeBook
Published inAug 2016
PublisherPackt
ISBN-139781786462664
Edition2nd Edition
Tools
OpenStack
Concepts
Cloud Computing
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Author (1)
Dan Radez
Dan Radez
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Dan Radez

Dan Radez joined the OpenStack community in 2012 in an operator role. His experience is focused on installing, maintaining, and integrating OpenStack clusters. He has been given the opportunity to internationally present OpenStack content to a range of audiences of varying expertise. In January 2015, Dan joined the OPNFV community and has been working to integrate RDO Manager with SDN controllers and the networking features necessary for NFV. Dan's experience includes web application programming, systems release engineering, and virtualization product development. Most of these roles have had an open source community focus to them. In his spare time, Dan enjoys spending time with his wife and three boys, training for and racing triathlons, and tinkering with electronics projects.
Read more about Dan Radez

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Load-balancing control services

When more compute services are added to the cluster, OpenStack's scheduler distributes the new instances appropriately. When new control or network services are added, traffic has to be deliberately sent to them. There is not anything natively in OpenStack that handles traffic being distributed across the API services. There is a load-balancing service called HAProxy that can do this for us. HAProxy can be run anywhere it can access the endpoints that will be balanced. It could go on its own node or it could be put on a node that already has a bit of OpenStack installed on it. Triple-O will run HAProxy on each of the control nodes.

HAProxy has a concept of frontends and backends. The frontends are where HAProxy listens for incoming traffic, and the backends define where the incoming traffic will be sent to and balanced across. When a user makes an API call to one of the OpenStack services, the HAProxy frontend assigned to the service will receive the request...

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OpenStack Essentials. - Second Edition
Published in: Aug 2016Publisher: PacktISBN-13: 9781786462664
© 2016 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Dan Radez

Dan Radez joined the OpenStack community in 2012 in an operator role. His experience is focused on installing, maintaining, and integrating OpenStack clusters. He has been given the opportunity to internationally present OpenStack content to a range of audiences of varying expertise. In January 2015, Dan joined the OPNFV community and has been working to integrate RDO Manager with SDN controllers and the networking features necessary for NFV. Dan's experience includes web application programming, systems release engineering, and virtualization product development. Most of these roles have had an open source community focus to them. In his spare time, Dan enjoys spending time with his wife and three boys, training for and racing triathlons, and tinkering with electronics projects.
Read more about Dan Radez

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