> On 18 Mar 2016, at 13:57, Brian Haley <brian.ha...@hpe.com> wrote: > > On 03/17/2016 06:04 PM, Doug Wiegley wrote: >>>> Here is the non comprehensive list of usages based on what trees I >>>> happen to have checked out (which is quite a few, but not all of >>>> OpenStack for sure). >>>> >>>> I think before deciding to take over ownership of an upstream lib (which >>>> is a large commitment over space and time), we should figure out the >>>> migration cost. All the uses in Tempest come from usage in Glance IIRC >>>> (and dealing with chunked encoding). >>>> >>>> Neutron seems to use it for a couple of proxies, but that seems like >>>> requests/urllib3 might be sufficient. >>> >>> The Neutron team should talk to Cory Benfield (CC'd) and myself more about >>> this if they run into problems. requests and urllib3 are a little limited >>> with respect to proxies due to limitations in httplib itself. >>> >>> Both of us might be able to dedicate time during the day to fix this if >>> Neutron/OpenStack have specific requirements that requests is not currently >>> capable of supporting. >> >> Looks like neutron is using it to do HTTP requests via unix domain sockets. >> Unless I’m missing something, requests doesn’t support that directly. There >> are a couple of other libs that do, or we could monkey patch the socket. Or >> modify the agents to use localhost. > > We have to use Unix domain sockets in the metadata proxy because it's running > in a namespace, so can't use localhost to talk to the agent. But we could > use some other library of course. >
Getting requests to talk over a Unix domain socket is not particularly tricky, and there are third-party libraries that hook into requests appropriately to make that happen. For example, the requests-unixsocket module exists that can do the appropriate things. Cory
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