Comment 3 for bug 1719561

Reviewed: https://review.openstack.org/507473
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=1a4ae60e1b48efb3d80cd36a285eda7ef5620f12
Submitter: Zuul
Branch: master

commit 1a4ae60e1b48efb3d80cd36a285eda7ef5620f12
Author: Yikun Jiang <email address hidden>
Date: Tue Sep 26 18:33:00 2017 +0800

    Update Instance action's updated_at when action event updated.

    When we do some operation on instances, will record some
    instance action(such as 'create') in 'instance_actions' table,
    and some sub-event will record(such as
    compute__do_build_and_run_instance) in 'instance_actions_events'
    table.

    we need update the instance action's updated_at when instance
    action events are created and instance action created or finished.

    Change-Id: I75a827b759b59773c08ffc6b1e3e54d6189b5853
    Closes-Bug: #1719561