Comment 21 for bug 1317293

Reviewed: https://review.openstack.org/99729
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=a75d3c94d8e07a5a73e008925eb6fc25515d7c13
Submitter: Jenkins
Branch: master

commit a75d3c94d8e07a5a73e008925eb6fc25515d7c13
Author: Steven Hardy <email address hidden>
Date: Thu Jun 12 14:18:58 2014 +0100

    Allow passing an existing user_creds_id to parser.Stack

    Currently we always create a new user_creds entry every time a stack
    is stored, even if a user_creds_id is passed to the constructor. So
    allow an existing user_creds ID to be respected.

    This will enable optimisation of the creation of trusts, e.g so we won't
    have to create a new trust for every nested stack, we can pass the top
    level credentials into the nested stack instead, which means updates which
    create nested stacks with a trust-scoped-token will work.

    This will be required for updates via trusts from Solum, and probably
    also to make OS::Heat::AutoScalingGroup work with the trust-alarm-urls
    blueprint, where ceilometer will send a signal using a trust.

    Change-Id: I7f78a2202514f13deb60ad7d66b9145447cc5625
    Partial-Bug: #1317293
    blueprint: trust-alarm-urls