SoftwareDeploymentGroup doesn't support path based attributes

[Steven Hardy]

SoftwareDeploymentGroup offers a number of attributes to access the underlying ResourceGroup of SoftwareDeployment resources, but there are two problems which make this quite hard to use:

1. We don't pass the path from the SoftwareDeploymentGroup FnGetAtt to the call to ResourceGroup.FnGetAtt, so it's impossible to select a specific item from the returned map

2. We don't allow selecting anything other than the hard-coded stderr/stdout/status_code outputs - the underlying SoftwareDeployment allows selection of any output key, so we should pass through the value if it's not one of the hard-coded attributes.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/217191

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/217192

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/217191
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=b574cdaf26ee0f1286645307a830bc31d9e4f668
Submitter: Jenkins
Branch: master

commit b574cdaf26ee0f1286645307a830bc31d9e4f668
Author: Steven Hardy <email address hidden>
Date: Wed Aug 26 14:42:06 2015 +0100

    SoftwareDeploymentGroup - make path based attributes work

    Currently all the attributes return a map, with the keys being
    each SoftwareDeployment name, e.g "0", "1", "2", but path based
    attributes don't work, so there's no way to select a specific
    element from the map. So add support for path based attributes
    using the same approach used in SoftwareDeployment.

    (Pulled from gate, can't pass until Neutron netaddr fix is landed in kilo)

    Change-Id: I9d1ce8de208a046ce335d4f574b413ba048b1ad3
    Partial-Bug: #1488921

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/217192
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=a2c3e002970fa1b79922d9f58b2fe1270d05162a
Submitter: Jenkins
Branch: master

commit a2c3e002970fa1b79922d9f58b2fe1270d05162a
Author: Steven Hardy <email address hidden>
Date: Wed Aug 26 14:58:53 2015 +0100

    SoftwareDeploymentGroup allow arbitrary keys for attributes

    Since SoftwareDeploymentGroup is really a ResourceGroup, it's capable
    of resolving any attribute supported by SoftwareDeployment, including
    arbitrary outputs mapped to attributes. Exposing these via the
    SoftwareDeploymentGroup resource provides much better flexibility than
    forcing users to mangle everything via stdout.

    This has the side-effect of making the existing attributes somewhat
    redundant, e.g:

    get_attr: [a_sdg, deploy_stdouts]

    is exactly equivalent to this:

    get_attr: [a_sdg, deploy_stdout]

    The deploy_stdout attribute should be transparently reflected from the
    SoftwareDeployment resources via the normal ResourceGroup interfaces,
    so we could consider deprecating the existing attributes at some point.

    Change-Id: Ie3b89155d2be0050394eb7f7d5000331cde9aae0
    Closes-Bug: #1488921