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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Troubleshooting post-boot metadata

Images are built and added to Glance as generic reusable images. This means that there isn't any data included to launch the image that is built into it. To provide the image with configurations to allow login and customization, the images should include a service called cloud-init. Cloud-init calls back into OpenStack to get SSH pub keys and post-boot configuration commands. There is a predetermined URL that cloud-init calls into: http://169.254.169.254. If you are getting an access-denied error when you try and SSH to your floating IP address, it is probably because cloud-init is failing to get the SSH pub key for your authorized keys file, you are using the wrong username, or you are using a prepackaged image that you have downloaded with a username other than root.

To troubleshoot the metadata service, make sure that you have an image that you can connect to the console. CirrOS is a good option for debugging things like this; just remember not to use...

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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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