> On Thu, 2009-08-20 at 19:25 +0000, Duncan McGreggor wrote:
> > Duncan McGreggor has proposed merging
> > lp:~oubiwann/txaws/416109-arbitrary-endpoints into lp:txaws.
> > Requested reviews:
> > txAWS Team (txawsteam)
> > This branch adds support for a service object that manages host
> > endpoints as well as authorization keys (thus obviating the need for
> > the AWSCredential object).
> Lets be careful to keep space under storage, ec2 etc for server
> components. storage.service isn't really a storage service :) Lets call
> the description of an end point AWSServiceEndpoint, or something like
> local and credentials appear orthogonal to me - for instance,
> EC2 EU and EC2 US are different endpoints/services with common
> credentials. I think conflating them is unnecessary and undesirable.
> Further to that, the AWSCredentials are usable on related services in a
> single region - EC2, S3 and so on, so when we're passing around a
> description, we probably want to have a region that describes the
> endpoints for a collection of services.
Brought the credentials back into the source. Pulled credential code out of
service endpoint code.
> The goal being able to have a
> static object
> AWS_US1 = #...
> AWS_US2 = #...
> and for people to make their own;
> my_eucalyptus_region = #...
> At runtime then, one would ask a region for a client of a particular
> service, using some credentials.
> We could do this without changing the existing clients at all, by just
> storing scheme,host tuples in a AWSRegion - but I think it is cleaner to
> do the sort of refactoring you have done. I think it would be best by
> having an AWSServiceEndpoint which has the scheme and url, and keeping
> the creds separate. For instance,
> class AWSServiceRegion:
> def make_ec2_client(self, creds=None):
> return EC2Client(creds=creds, service_endpoint=self.ec2_endpoint)
I'm got an implementation of this in place right now. It ended up pretty
similar to what you suggested. There are some missing unit tests right now --
I'll be hitting those this afternoon.
> Also a bit of detail review - 'default_schema = https' - in URL terms
> (see http://www.ietf.org/rfc/rfc3986.txt) that is a _scheme_, not a
Ugh, thanks. The first place I wrote it was good, then I copied a typo
everywhere else. Fixed.
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