Comment 10 for bug 1682060

Reviewed: https://review.openstack.org/456923
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=9a5c3cd7da76a7340861d552718e7e46640f15be
Submitter: Jenkins
Branch: master

commit 9a5c3cd7da76a7340861d552718e7e46640f15be
Author: Matt Riedemann <email address hidden>
Date: Fri Apr 14 11:21:17 2017 -0400

    Add release note and update cell install guide for multi-cell limitations

    As of change If1e03c9343b8cc9c34bd51c2b4d25acdb21131ff, using
    "nova hypervisor-list" before compute hosts are mapped to a cell
    will result in an empty list.

    Our cells v2 install steps mention using 'nova hypervisor-list' after
    creating a cell and starting compute services to tell when to run
    the discover_hosts command, but now hypervisor-list won't work until
    you've run discover_hosts, so it's a catch-22.

    This change adds a release note to let people writing deployment tools
    to know about the change in behavior and also updates the install steps
    to use service-list instead of hypervisor-list, since service-list does
    not require the compute host to be mapped to the cell first.

    We are going to need to make a similar change in the OpenStack install
    guide since that also mentions using 'nova hypervisor-list' before
    discover_hosts.

    Change-Id: If2baab40c2e2a3de20e561bba50688d615b002ef
    Closes-Bug: #1682060