Comment 4 for bug 1793605

Reviewed: https://review.openstack.org/605412
Committed: https://git.openstack.org/cgit/openstack/tripleo-common/commit/?id=f86b2b4c55b2aa10612388e75f604faae969971a
Submitter: Zuul
Branch: stable/rocky

commit f86b2b4c55b2aa10612388e75f604faae969971a
Author: Emilien Macchi <email address hidden>
Date: Fri Sep 21 17:32:18 2018 -0400

    config: ignore missing server_id from the stack

    When blacklisting nodes on the overcloud, we don't want to generated
    a configuration with these servers.
    This patch ignore the server when server_id can't be found in the stack
    when generating the configuration of the overcloud.
    A warning is shown so the operator knows this server isn't part of the
    configuration, probably due to blacklisting.
    If getting the server name fails for another reason than a KeyError,
    we fail the configuration generation and raise an exception with the
    error message.

    Change-Id: Ie7660894050e5eca251aaf8c10f0cc7e7d837dfc
    Closes-Bug: #1793605
    (cherry picked from commit 272bd17c304d7d047ed75679568a09e9ebf7865b)