Comment 6 for bug 1551048

Reviewed: https://review.openstack.org/285857
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=bbb38534866c96e7688618b41449cae07871f3a2
Submitter: Jenkins
Branch: master

commit bbb38534866c96e7688618b41449cae07871f3a2
Author: Dan Prince <email address hidden>
Date: Sun Feb 28 20:19:49 2016 -0500

    Use set -e for validation-scripts/all-nodes.sh

    Update this script to use 'set -e' for all commands except
    the ping checks themselves which we allow to fail so we
    can give enhanced output.

    This resolves an issue where some commands could fail and cause
    an undetectable error (the scripted exits with success) thus causing
    a case where Heat won't detect any network errors at all. This
    was recently the case with git commit 45be848 where we switched
    to use python -c 'import ipaddr' which wasn't even installed as a
    library on our overcloud nodes, thus causing all network validations
    to silently fail.

    Change-Id: I40ed6a537136e866357cc0d9304e905afdd28522
    Depends-On: Ia617f44b4673b89202e5e5cdcac9b50f46b3e6c8
    Related-bug: #1551048