[Zope3-dev] Deploying WSGI Apps with Zope 3.2+

[Jim Fulton]

Sidnei da Silva wrote:
> On Thu, Jan 26, 2006 at 06:30:02AM -0500, Jim Fulton wrote:
> | Sidnei da Silva wrote:
> | >On Wed, Jan 25, 2006 at 05:28:14PM -0500, Jim Fulton wrote:
> | >| >There are a bunch of issues to be resolved, like the fact that it's
> | >| >not possible to access the initial ZConfig options object because it's
> | >| >thrown away, so, in order of priority:
> | >| >
> | >| >1. It's not possible to find where the <INSTANCE_HOME> is.
> | >| 
> | >| Why is this necessary?
> | >
> | >So the config file for paste.deploy can be in <INSTANCE_HOME>/etc/paste.ini
> | 
> | Hm. I don't have the time to think hard about this right now,
> | but I suspect the model you are following isn't quite right.  Rather than
> | implicitly looking for a paste file in a magic location, I suspect that you
> | should name the paste file in your ZConfig file or possibly extend the 
> | ZConfig
> | schema with components that reproduce what's normally found in a paste 
> | config
> | file (app definitions, server definitions, etc.).  Of course, either of 
> | these
> | options requires updating the ZConfig schema which is a real pain, so I can
> | understand why you wouldn't want to do that.
> 
> And you're right to the point.
> 
> My original intention was to put the config file location in the
> ZConfig schema, but that's *waaaay* too painful right now.
> 
> OTOH, it does seem to work pretty reasonably right now to serve as a
> prototype.

Sure.

 > I have other concerns than if the config file location is
> magic or not at the moment. I mean, it's probably better that it's
> hardcoded to '<INSTANCE>/etc/paste.ini' than configurable at this
> point.

Sure, for a prototype.

In the long term, explicit is better than implicit.

 > I don't think one would need *more than one* paste.deploy
> configuration file anyway, so changing it's name would be pretty
> pointless.

I don't agree.  Paste Deploy encourages use of multiple configution files:

- to reuse configuration

- to override configuration

> I think we can slowly progress from here, solving the ZConfig problem,
> then the server-type-always-takes-db-argument and eventually end up
> with zope.paste in the main tree and having the default wsgi server be
> configured using paste.deploy.

Maybe, but I don't want to simply pile hack on cruft on hack.

Jim

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