Comment 1 for bug 1777714

Reviewed: https://review.openstack.org/577859
Committed: https://git.openstack.org/cgit/openstack/charm-neutron-gateway/commit/?id=b355ea0473af5f1cf47c23ac5dadbeea52942bb0
Submitter: Zuul
Branch: master

commit b355ea0473af5f1cf47c23ac5dadbeea52942bb0
Author: Shane Peters <email address hidden>
Date: Mon Jun 25 12:07:49 2018 -0400

    Add functionality for vendor_data

    Using vendor metadata helps alleviate the need to spin custom images
    for things like package mirrors, timezones, or network proxies.

    Adds new config option 'vendor-data' which takes a JSON formated
    string to be used as static vendor metadata.

    Adds new config option 'vendor-data-url' which takes a URL which
    serves dynamic JSON formatted vendor metadata.

    Adds new NovaMetadataContext class which writes
    /etc/nova/vendor_data.json and enables it via nova.conf.

    Closes-Bug: 1777714

    Change-Id: I1d70804e59d42b0651a462c81e01d9c95626f27d