Resources with custom FnGetAtt don't populate attributes on resource-show

[Steve Baker]

Resources with custom FnGetAtt generally bypass self.attributes since their attribute schemas are dynamic (software deployments, template resources, resource groups)

This means that a resource-show on these resources will return 'null' as the value for any defined attribute.

For example, an OS::Heat::SoftwareDeployment will return the following for resource-show| attributes | { |
| | "deploy_stdout": null, |
| | "deploy_stderr": null, |
| | "deploy_status_code": null |
| | }

however doing a heat deployment-show with display actual values for deploy_stdout etc

Likely solutions would be:
1. modify heat.engine.api.format_resource_attributes to take into account resources with custom FnGetAtt and dynamic schemas
2. modify these resources to populate self.attributes with a dynamic schema, and remove their custom FnGetAtt functions

2. may require more effort/magic, but it could also be the basis for fixing bug 1464628

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/206098

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/210306

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/205128
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=15e52ff5e96f1521d7c06a8d55f62f5fb6ce33d3
Submitter: Jenkins
Branch: master

commit 15e52ff5e96f1521d7c06a8d55f62f5fb6ce33d3
Author: Angus Salkeld <email address hidden>
Date: Tue Aug 4 13:00:40 2015 +1000

    Support attributes with dynamic scheme

    Some resources (software deployment, template resources, etc)
    doesn't have static attribute scheme. So when we are trying
    to output attributes for such resources the output always
    returns None or null. So the patch support this functionality
    with the new type of attributes: dynamic scheme attributes.
    They allow to resolve dynamic attributes for resource outputs
    and fetch such info as nested stack attrs or
    software deployment outputs.
    The next patch will enable usage of dynamic scheme attributes
    for heat resource.

    Change-Id: I474addad0bbfe16aa5c562f2d6025c52f175dd4f
    Partial-Bug: #1470675

[Steve Baker (steve-stevebaker)]

Moving to next, this can be brought back to rc1 if it gets reviews

[Angus Salkeld (asalkeld)]

I don't think this needs to go back to kilo. If someone really disagrees, please change the status.

[Kairat Kushaev (kkushaev)]

Sorry, I don't have enough time to work on this in Mitaka.
So feel free to pick up the work.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Kairat Kushaev (<email address hidden>) on branch: master
Review: https://review.openstack.org/206098
Reason: Sorry, I don't have enough time to work on this in Mitaka.
So feel free to pick up the work.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Kairat Kushaev (<email address hidden>) on branch: master
Review: https://review.openstack.org/209544
Reason: Sorry, I don't have enough time to work on this in Mitaka.
So feel free to pick up the work.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Kairat Kushaev (<email address hidden>) on branch: master
Review: https://review.openstack.org/210306
Reason: Sorry, I don't have enough time to work on this in Mitaka.
So feel free to pick up the work.