Ara fails to install in some of tripleo jobs with ImportError: 'module' object has no attribute 'check_specifier'

[Sagi (Sergey) Shnaidman]

In some of tripleo jobs ARA fails to install with error "ImportError: 'module' object has no attribute 'check_specifier'"

http://logs.openstack.org/22/597222/14/check/tripleo-ci-centos-7-containerized-undercloud-upgrades/6c7a35d/job-output.txt.gz#_2018-09-14_17_09_53_208007

Looking in indexes: http://mirror.ord.rax.openstack.org/pypi/simple, http://mirror.ord.rax.openstack.org/wheel/centos-7.5.1804-x86_64
Collecting ara
  Downloading http://mirror.ord.rax.openstack.org/pypifiles/packages/68/cd/dee19950ae6c5cbd27a065156536a1dc8a88faa481122701e4f13ceeabf4/ara-0.16.1-py2.py3-none-any.whl (152kB)
Collecting XStatic-DataTables>=1.10.15 (from ara)
  Downloading http://mirror.ord.rax.openstack.org/pypifiles/packages/3c/bb/d6a58cd1c4082bb5824db4eacb9293a882037793f41bef7bcaabc34ff9dd/XStatic-DataTables-1.10.15.1.tar.gz (209kB)
Collecting Flask-Migrate (from ara)
  Downloading http://mirror.ord.rax.openstack.org/pypifiles/packages/59/97/f681c9e43d2e2ace4881fa588d847cc25f47cc98f7400e237805d20d6f79/Flask_Migrate-2.2.1-py2.py3-none-any.whl
Collecting Flask!=0.12.3,>=0.11 (from ara)
  Downloading http://mirror.ord.rax.openstack.org/pypifiles/packages/7f/e7/08578774ed4536d3242b14dacb4696386634607af824ea997202cd0edb4b/Flask-1.0.2-py2.py3-none-any.whl (91kB)
Collecting XStatic-jQuery>=1.8.2.1 (from ara)
  Downloading http://mirror.ord.rax.openstack.org/pypifiles/packages/f4/f3/b806d039ec4cd3ff601d7af49a18cb70697171c7b93030d4f1ffb881c174/XStatic-jQuery-1.10.2.1.tar.gz (116kB)
Requirement already satisfied, skipping upgrade: cliff in /usr/lib/python2.7/site-packages (from ara) (2.11.1)
Collecting XStatic-Bootstrap-SCSS>=3.3.7.1 (from ara)
  Downloading http://mirror.ord.rax.openstack.org/pypifiles/packages/c6/8c/4a4784d08dd01afe198ef1a8c7c8104d4c5f638257769747ca29bf1e671a/XStatic_Bootstrap_SCSS-3.3.7.1-py2.py3-none-any.whl (247kB)
Collecting Frozen-Flask (from ara)
  Downloading http://mirror.ord.rax.openstack.org/pypifiles/packages/94/f7/d04d4ee76a9ceb4c1dc1846e86d8784b72e38179fd5f468b61e77bb52296/Frozen_Flask-0.15-py2.py3-none-any.whl
Collecting Flask-Script (from ara)
  Downloading http://mirror.ord.rax.openstack.org/pypifiles/packages/00/a4/cd587b2b19f043b65bf33ceda2f6e4e6cdbd0ce18d01a52b9559781b1da6/Flask-Script-2.0.6.tar.gz (43kB)
Collecting ansible>=2.4.5.0 (from ara)
  Downloading http://mirror.ord.rax.openstack.org/pypifiles/packages/d4/25/528d45116c7ccef06cced5b90528b3c31380cba118df714c890bc77ff2d7/ansible-2.6.4.tar.gz (10.8MB)
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-install-ObacOm/ansible/setup.py", line 312, in <module>
        main()
      File "/tmp/pip-install-ObacOm/ansible/setup.py", line 307, in main
        setup(**setup_params)
      File "/usr/lib64/python2.7/distutils/core.py", line 112, in setup
        _setup_distribution = dist = klass(attrs)
      File "/usr/lib/python2.7/site-packages/setuptools/dist.py", line 272, in __init__
        _Distribution.__init__(self,attrs)
      File "/usr/lib64/python2.7/distutils/dist.py", line 287, in __init__
        self.finalize_options()
      File "/usr/lib/python2.7/site-packages/setuptools/dist.py", line 327, in finalize_options
        ep.load()(self, ep.name, value)
      File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2229, in load
        return self.resolve()
      File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2239, in resolve
        raise ImportError(str(exc))
    ImportError: 'module' object has no attribute 'check_specifier'

    ----------------------------------------

:stderr: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-ObacOm/ansible/

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/611717

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/611717
Committed: https://git.openstack.org/cgit/openstack/tripleo-quickstart-extras/commit/?id=3652de04fc1b149d316b7187fd98c86d663d19e4
Submitter: Zuul
Branch: master

commit 3652de04fc1b149d316b7187fd98c86d663d19e4
Author: Rafael Folco <email address hidden>
Date: Thu Oct 18 17:39:19 2018 -0300

    Do not configure ara on undercloud by default

    Until we cannot pin ara deps to each branch.
    In some of tripleo jobs ARA fails to install with error
    "ImportError: 'module' object has no attribute 'check_specifier'"

    Also improve error handling, only install ara if deps are met.

    Change-Id: I719ee3665c12375a2f9bbb19685f4f626b26f7c9
    Closes-Bug: #1792622

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tripleo-quickstart-extras 2.1.1 release.