Deprecation Warnings for keystoneclient

[Hiromu Asahina]

The following warnings are emitted many times during unittest.

/opt/stack/tacker/.tox/py39/lib/python3.9/site-packages/keystoneclient/session.py:139: DeprecationWarning: keystoneclient.session.Session is deprecated as of the 2.1.0 release in favor of keystoneauth1.session.Session. It will be removed in future releases.

This happens because tacker.vnfm.keystone.py uses keystoneclient.session [1] in the `get_session` method. According to the above warning message, this method should be changed to use keystoneauth1.session.Session.

[1] https://github.com/openstack/python-keystoneclient/blob/master/keystoneclient/session.py#L139-L143

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/tacker/+/846966

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/tacker/+/846966
Committed: https://opendev.org/openstack/tacker/commit/f41cee0c2cbf6f28f26fafc5bd8814c5e50a4e2d
Submitter: "Zuul (22348)"
Branch: master

commit f41cee0c2cbf6f28f26fafc5bd8814c5e50a4e2d
Author: Hiromu Asahina <email address hidden>
Date: Sun Jun 5 10:45:49 2022 +0000

    Remove deprecated keystoneclient

    The keystoneclient emits a warning for the use of
    keystoneclient.session.Session which is deprecated as of the 2.1.0
    release in favor of keystoneauth1.session.Session. This patch
    migrates keystoneclient to keystoneauth1 to fix this problem.

    The following deprecation warnings are gone with the patch:

    - keystoneclient/session.py:139: DeprecationWarning:
      keystoneclient.session.Session is deprecated as of the
    2.1.0 release in favor of keystoneauth1.session.Session. It will be
      removed in future releases.

    Change-Id: I5c8f942ebe747f01ee0fcaab007f783bbeec0b97
    Closes-Bug: #1977697

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tacker 8.0.0.0rc1 release candidate.