defaults in [clients] section of configuration not applied when [clients_xxx] sections do not exist

[Miguel Grinberg]

If I want to set a default endpoint_type for all my clients I can include the following in heat.conf:

[clients]
endpoint_type = internalURL

And the expected behavior is that when heat looks for a client specific section (such as [clients_glance]) and doesn't find it, it goes and grabs the property from [clients].

This unfortunately does not work, because when the configuration options are registered heat registers a copy of the [clients] default values into all the [client_xxx] sections, so even though these sections are missing in my config file, they are not missing in the configuration object, and get registered with the default value for endpoint_type before parsing heat.conf, which is publicURL.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/127699

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/juno
Review: https://review.openstack.org/135197

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/127699
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=4fd5087499b0f3dae16b183eba825e642efb0e95
Submitter: Jenkins
Branch: master

commit 4fd5087499b0f3dae16b183eba825e642efb0e95
Author: Miguel Grinberg <email address hidden>
Date: Fri Oct 10 16:02:41 2014 -0700

    unconfigured clients look in the [clients] section for defaults

    This change enables clients that have no specific settings in
    the [clients_xxx] sections of the configuration file to get defaults
    from the [clients] section.

    Change-Id: I071bd77a2e1f0ad366b80c095917a8debc5cef2b
    Closes-Bug: 1379958

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/135197
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=9f2d2095591a60d55573a788306bc26ffa76ecb1
Submitter: Jenkins
Branch: stable/juno

commit 9f2d2095591a60d55573a788306bc26ffa76ecb1
Author: Miguel Grinberg <email address hidden>
Date: Fri Oct 10 16:02:41 2014 -0700

    unconfigured clients look in the [clients] section for defaults

    This change enables clients that have no specific settings in
    the [clients_xxx] sections of the configuration file to get defaults
    from the [clients] section.

    Change-Id: I071bd77a2e1f0ad366b80c095917a8debc5cef2b
    Closes-Bug: 1379958
    (cherry picked from commit 4fd5087499b0f3dae16b183eba825e642efb0e95)