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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Managing key pairs

Since a cloud image is a copy of an already existing disk image with an operating system already installed, the root users are generally disabled, and if the root password is set, it is usually not distributed. To overcome the inability to authenticate without a password, OpenStack uses SSH key pairs. If you remember, in Chapter 3, Image Management, we discussed the need for cloud-init to be installed in a cloud image. Then, in Chapter 4, Network Management, we discussed how cloud-init would connect to the metadata service via the IP address provided by the router. One of the primary roles of this cloud-init process is to pull down the public SSH key that will be used for authentication. OpenStack provides a facility for you to manage your SSH key pairs so that you can select which will be used when you launch an instance. Let's start by generating a new key pair and listing it, as shown in the following commands:

undercloud# openstack keypair create my_keypair
-----BEGIN...
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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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