[Maas-devel] You can't use the REST API from PServ

[Graham Binns]

As Julian has pointed out to me just today:

> you cannot use the API in pserv, it never gets sent the API
> credentials, which is why for my lease uploading service I added an
> RPC to do that.  Let's get rid of the API entirely for clusters rather
> than being half-assed about it.

So, to bullet point that for future use:

 - You can't use the REST API from pserv (e.g. TimerServices on the
   cluster, etc.)
 - If you're converting a celery task to something that runs in pserv,
   you _must_ convert any REST API calls to RPC calls.