Swift-dispersion-populate/report can't run in a virtual environment using keystone V2.0

[Lorcan Browne]

When trying to run "swift-dispersion-populate" in a virtual environment using keystone V2.0, the following errror is observed:

"ERROR: swiftclient missing, only auth v1.0 supported"

This happens because python-swiftclient is not included in the shared libraries and "swift-dispersion-populate" ends up including the "get_auth " function from "swift/common/internal_client.py". This "get_auth" function does not support keystone V2.0

The solution to this is to include python-swiftclient in requirements.txt.

[Lorcan Browne (lorcan-browne)]

I have a fix for this ready to push for review but can't do it until Bug #1317957 is resolved

[Lorcan Browne (lorcan-browne)]

Change added for review - https://review.openstack.org/#/c/93611/

[Lorcan Browne (lorcan-browne)]

Pete Zaitcev and Samuel Merritt pointed out in their review that the solution of including python-swiftclient in requirements.txt is unaceptable as it adds an undesired swiftclient dependency.

An alternative solution would be to update the "get_auth" function in "swift/common/internal.client.py" so that it is more similar as "get_auth" in "swiftclient/client.py". I have tested this on my local machine and it appears to work with no added dependencies.

From swift-dispersion-populate/report

...
try:
    from swiftclient import get_auth
except ImportError:
    from swift.common.internal_client import get_auth
...

[OpenStack Infra (hudson-openstack)]

Change abandoned by Lorcan Browne (<email address hidden>) on branch: master
Review: https://review.openstack.org/93611
Reason: Abandoning this as it does not seem to be a big issues. I came across this problem when trying to use the dispersion populate tool in a tripleo environment. However, have worked around this issue by adding swiftclient to the swift-source-install section of the swift-proxy element in tripleo-image-element.

See: https://review.openstack.org/#/c/95176/