pulp_glue fails to use CA bundles specified via env vars

[dkliban]

Prepared Requests don't use environment variables by default. The following is needed to make it work:

from requests import Request, Session

s = Session()
req = Request('GET', url)

prepped = s.prepare_request(req)

# Merge environment settings into session
settings = s.merge_environment_settings(prepped.url, {}, None, None, None)
resp = s.send(prepped, **settings)

print(resp.status_code)

While pulp-glue calls merge_environment_settings, the settings are not actually pass to the send method. Only a portion of them are copied into the session object.

[0] https://requests.readthedocs.io/en/latest/user/advanced/#prepared-requests
[1] https://github.com/pulp/pulp-cli/blob/0.20/pulp-glue/pulp_glue/common/openapi.py#L93-L97

[dkliban]

verify is getting set to the path of the CA bundle specified. however, it doesn't seem like it matters if the bundle is real or not. i'll close for now.