Comment 4 for bug 1553977

Reviewed: https://review.openstack.org/292512
Committed: https://git.openstack.org/cgit/openstack/openstack-ansible-os_ceilometer/commit/?id=f70ea8725123538db33794070695dbb03a868e19
Submitter: Jenkins
Branch: master

commit f70ea8725123538db33794070695dbb03a868e19
Author: Matt Thompson <email address hidden>
Date: Mon Mar 14 16:56:33 2016 +0000

    Use upper-constraints file in developer mode

    Last week, keystone was failing to install in developer mode due to us
    not specifying upper constraints. This was due to an upcapped version
    of pysaml2 being installed which is causing problems. This commit first
    clones the requirements repo and then uses the upper constraints file
    when installing packages.

    Note that we only update pip_install_options when in developer mode if
    the constraints aren't already set. This is because in developer mode
    you could have a container with multiple services running on it and the
    pip_install_options fact would get updated when already set, resulting
    in pip failing to install packages.

    Change-Id: Ie5dd39ea49268fdea401e324b96fb5a2e89dd078
    Partial-Bug: #1553977