Open Stack

Hi,

*Background*: The quantum service makes use of the configuration file 
quantum.conf. In addition to this there is a common configuration file 
shared between the plugin and the agent (plugin.ini). The aforementioned 
files are loaded by the common configuration files.

*Current developments*: A number of current developments, for example 
notifications (https://review.openstack.org/#/c/9835/) and scalable 
agents (https://review.openstack.org/#/c/9591/) require RPC configurations.

 From the discussion last night the community the consensus is to have 
the common configuration items that may be relevant to one or more 
agent/plugin in the quantum configuration file. This change will require 
the agents to also load the quantum.conf configuration files.

*Open issues*:
1. I do not think that the common configuration supports mapping of name 
spaces to configuration files.
2. Configuration file loading. With the plugins the configuration files 
are loaded in two stages. If possible it would be great that the files 
could be loaded at once - this can be done by listing the plugin/agent 
ini file(s) in the quantum.conf. When this is loaded then the other 
files will be loaded.

Please let me know if you have any comments or objections. I would like 
to move ahead and start to work on this.

Thanks
Gary

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