This updates the release notes for the new cellsv2 discover_hosts
command to be clear that it should be run at the API level. And adds a
TODO to provide a better error message if that is not done.
Change-Id: I51f113c2c445a9806675a9ee66f883d2b7f4f8f0
While there are some nova-manage commands to take an existing deployment
and migrate all of its hosts into a new cellsv2 environment there was no
way to add more hosts to a cell. This command can be run at any time
after the initial migration and will map any hosts in a cell that have
not been seen before.
Nothing else changes about adding hosts to a deployment. Configure them
to use a nova database and start them up and they'll register themselves
with that database. This new command simply lets the API know how to
route requests to those hosts. Until this is done instances can not be
booted on those hosts.
Partially-Implements: bp cells-scheduling-interaction
Change-Id: I8c044e5b480edddead28d8c3527d003da566ed1e