docker-puppet.py: can't easily reproduce a single failure from docker-puppet.json

[James Slagle]

If docker-puppet.py fails on any config_volume, it can be difficult to
reproduce the failure given all the other entries in docker-puppet.json.
Often to reproduce a single failure, one has to modify the json file,
and remove all other entries, save the result to a new file, then pass
that new file as $CONFIG.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/526526

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/526526
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=c4e6a708645b5b2b1220222a17aa8c8e69a15ca7
Submitter: Zuul
Branch: master

commit c4e6a708645b5b2b1220222a17aa8c8e69a15ca7
Author: James Slagle <email address hidden>
Date: Thu Dec 7 17:20:15 2017 -0500

    Enable docker-puppet.py for a single config_volume

    If docker-puppet.py fails on any config_volume, it can be difficult to
    reproduce the failure given all the other entries in docker-puppet.json.
    Often to reproduce a single failure, one has to modify the json file,
    and remove all other entries, save the result to a new file, then pass
    that new file as $CONFIG.

    This commit adds the ability to specify $CONFIG_VOLUME, which will cause
    docker-puppet.py to only run the configuration for the specified entry
    in docker-puppet.json whose config_volume value matches the user
    specified value.

    Change-Id: I2889647a27a8b891696a6a3e7f78b59a015c2c79
    Closes-Bug: #1737043

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tripleo-heat-templates 8.0.0.0b3 development milestone.