Comment 10 for bug 1765439

Reviewed: https://review.openstack.org/570752
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=41f3cad8f6ca1ae0e0c5a71cc7a9a8a31f478cba
Submitter: Zuul
Branch: stable/queens

commit 41f3cad8f6ca1ae0e0c5a71cc7a9a8a31f478cba
Author: Pranali Deore <email address hidden>
Date: Tue May 22 17:12:43 2018 +0530

    Add support of shared staging location for glance-direct

    In the case of an HA setup (ie with 3 controller nodes) if image
    import method is 'glance-direct', it would require a shared
    consistent staging location on the controller nodes otherwise it
    might happen that the image is uploaded to one node and triggering
    the import is executed on a different node - where the image does not
    exist.

    Hence when import method 'glance-direct' is needed, operators need to
    enable it explicitly with enabling NFS across the controller nodes
    to share the staging.

    Change-Id: I9a5bff5e5d0c3e109b73d691cc9088904a0401ac
    Closes-Bug: #1765439
    (cherry picked from commit a089310bf3269339ddec36e8ba021b67a18abfd0)
    Conflicts:
            puppet/services/glance-api.yaml