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What is disk.config under /var/lib/nova/instances from newton release?

asked 2017-02-15 04:28:02 -0500

keerthivasanselvaraj gravatar image

Under this directory /var/lib/nova/instances following files are present,


What exactly this disk.config file do ?

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Thanks. If i am not wrong all these informations are already stored in nova db right ? Is there any other specific reason behind using this config file.

keerthivasanselvaraj gravatar imagekeerthivasanselvaraj ( 2017-02-15 08:18:27 -0500 )edit

They are in the DB, yes. And the config drive is one of two ways for the instance to get the data.

Bernd Bausch gravatar imageBernd Bausch ( 2017-02-15 08:27:54 -0500 )edit

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answered 2017-02-15 06:29:09 -0500

It's the config drive, an ISO or VFAT filesystem with instance metadata and information like instance name, SSH key and floating IP. The same information that the instance can retrieve from the metadata API.

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Asked: 2017-02-15 04:28:02 -0500

Seen: 352 times

Last updated: Feb 15 '17