REST api support for stack_cancel_update with no rollback

[Rabi Mishra]

Existing REST 'action' api only supports cancel_update with rollback. However, both legacy and convergence engine support cancelling an stack that is in UPDATE_IN_PROGRESS without rollback.

- Convergence engine stops the current traversal allowing resources IN_PROGRESS to continue till they are COMPLETE/FAILED or timed out.

- In legacy engine a THREAD_CANCEL mesaage is sent to the engine with the stack lock.

It would be good to add REST api/client support for this.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/491467

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/491467
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=01b58781292ca8da97019594b6dc155817c46ca1
Submitter: Zuul
Branch: master

commit 01b58781292ca8da97019594b6dc155817c46ca1
Author: rabi <email address hidden>
Date: Mon Aug 7 15:05:50 2017 +0530

    Add REST api support for cancel without rollback

    We already have REST api support for cancelling a
    UPDATE_IN_PROGRESS stack with rollback. This adds a
    new action 'cancel_without_rollback' to allow for
    canceling a create/update in_progress stack without
    rollback.

    APIImpact

    Change-Id: I6c6ffa0502ab8745cfb2f9c5ef263f1e02dfc4ca
    Closes-Bug: #1709041

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/499550
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=6c7d0596892f848d6df368867e9644b7b38d1bed
Submitter: Zuul
Branch: master

commit 6c7d0596892f848d6df368867e9644b7b38d1bed
Author: rabi <email address hidden>
Date: Thu Aug 31 10:55:13 2017 +0530

    Add functional tests for stack cancel

    This adds tests for user initiated stack cancel operations
    w/ or w/o rollback.

    Change-Id: I8ff787dc02dd76f99e9ece073b2f700c1922104d
    Depends-On: Ib107c82f341f4d271859ca7681d65f7ce4c5d0b1
    Related-Bug: #1709041

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/heat 10.0.0.0b2 development milestone.

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: stable/pike
Review: https://review.opendev.org/688537

[OpenStack Infra (hudson-openstack)]

Change abandoned by Rodrigo Barbieri (<email address hidden>) on branch: stable/pike
Review: https://review.opendev.org/688537