Open Stack

On 09/12/2013 10:36 AM, Dean Troyer wrote:
> DevStack has long had a config setting in localrc called EXTRA_OPTS that
> allowed arbitrary settings to be added to /etc/nova/nova.conf [DEFAULT]
> section.  Additional files and sections have recently been implemented
> with a similar scheme.  I don't think this scales well as at a minimum
> every config file and section needs to be individually handled.
> 
> I'd like to get some feedback on the following two proposals, or hear
> other ideas on how to generalize solving the problem of setting
> arbitrary configuration values.
> 
> 
> a) Create conf.d/*.conf files as needed and process each file present
> into a corresponding config file.  These files would not be supplied by
> DevStack but created and maintained locally.
> 
> Example: conf.d/etc/nova/nova.conf:
> [DEFAULT]
> use_syslog = True
> 
> [osapi_v3]
> enabled = False
> 
> 
> b) Create a single service.local.conf file for each project (Nova,
> Cinder, etc) that contains a list of settings to be applied to the
> config files for that service.
> 
> Example: nova.local.conf:
> # conf file names are parsed out of the section name below between '['
> and the first ':'
> [/etc/nova/nova.conf:DEFAULT]
> use_syslog = True
> 
> [/etc/nova/nova.conf:osapi_v3]
> enabled = False
> 
> 
> Both cases need to be able to specify the destination config file and
> section in addition to the attribute name and value.
> 
> Thoughts?
> dt

Have you looked at os-apply-config from the TripleO guys? It's
specifically a generalized and simple system for producing openstack
config files. If you're thinking about re-working how some of the config
file stuff works, it might be worth taking a look to see if it can fit
your needs.

> [Prompted by review https://review.openstack.org/44266]
> 
> -- 
> 
> Dean Troyer
> dtroyer at gmail.com <mailto:dtroyer at gmail.com>
> 
> 
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