[Planetlab-devel] configuring myplc{,-devel} & user doc

[Thierry Parmentelat]

Hi all

Following up on this configuration stuff, I've contributed a python 
script for easying the process, named plc-config-tty. The general idea 
is to take advantage of the ability we have to store local changes from 
the defaults, and only these, in separate xml files located under the 
configs/ subdir.

This script now ships with both rpms, and I've documented its usage in a 
revised version of the user doc, that I also reworked in an attempt to 
make it clearer ; initial configuration as well as further updates 
should now become straightforward.

The former method based on text-editing is still documented as an 
alternative. Please note however that, at this stage at least, both 
methods do not very well co-exist, as plc-config-tty *does not* expect 
your local changes to be stored in plc_config.xml, that in this model is 
considered a cache-only storage.

Your feedback is welcome and appreciated - Thierry

Kevin Atkinson wrote:

> [Again added devel at planet-lab.org to the CC list]
>
> On Tue, 8 Aug 2006, Kevin Atkinson wrote:
>
>> On Tue, 8 Aug 2006, Mark Huang wrote:
>>
>>> Kevin Atkinson wrote:
>>>
>>>> OK than in that case the myplc documentation is out of date and 
>>>> needs to be updated as it says to edit plc_config.xml directory in 
>>>> section 3.1
>>>
>>>
>>>
>>> You can and should edit the main configuration file to change 
>>> values; and most people who are not performing customization en 
>>> masse, shouldn't have to know about the support for configuration 
>>> templates.
>>
>>
>>
>> But, won't the cause problems when new variables are introduced when 
>> performing an upgrade, like from RC1 to RC2 which you pointed out?
>
>
>
> In general I am really confused about when it is okay to modify 
> plc_config.xml directory and when it is not.  I see you have code to 
> merge in new variable changes to plc_config.xml, but when does that 
> get called? When upgrading, or every time MyPLC restarts?  If it gets 
> called every time MyPLC restarts I fail to see how my template 
> plc_config.xml based on an older version of MyPLC will cause a 
> problem, and if it did cause a problem, every user upgrading MyPLC 
> from RC1 to RC2 will experience the problem.
>
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