Federaton extension fails due to missing pysaml2 library

[Marek Denis]

When enabling federation extension on my fresh devstack setup I noticed Keystone failed due to missing pysaml2 library.
It is probably due to the fact that pysaml2 is present in test-requirements.txt file and absent in requirements.txt.

I think the solution is to ad pysaml2 to the requirements.txt file.

[Marek Denis (marek-denis)]

Tempoary workaround is to manually install the pysaml2 library:

# pip install pysaml2

[Dolph Mathews (dolph)]

devstack should install test reqs... something else must be wrong?

[OpenStack Infra (hudson-openstack)]

Change abandoned by Marek Denis (<email address hidden>) on branch: master
Review: https://review.openstack.org/121878
Reason: Abandoning after Steve's explanation.

[Morgan Fainberg (mdrnstm)]

Based on comments on the review this is not an open bug.

[Steve Martinelli (stevemar)]

This came up again, as I just wanted to play with openid connect, and was forced to install pysaml2 if I had the federation extension enabled. This was discussed in IRC, and we determined that we could either a) attempt to import the pysaml2 modules where it's used, and catch import errors, like in https://review.openstack.org/#/c/145697/1 or b) force the user to install all federation related libraries. I think we are leaning toward b) as it's a more complete solution.