Open Stack

Ubuntu recently began offering pre-release Juno packages [1] and I
successfully built a three-node "core services" environment using them.
Let's discuss the potential changes...

1) So far, updating the OpenStack services chapters of the installation
guide mostly involves some configuration file changes, removing old
workarounds, and probably adding new workarounds. Should we use a bug or a
blueprint for these issues? In either case, I recommend uploading separate
patches for each service.

2) Neutron supports distributed virtual routers (DVR) and I'm sure people
want instructions for deploying them. However, DVR introduces more
complexity to already difficult networking concepts and requires
architectural changes to fully configure and demonstrate. At least for
Juno, I recommend keeping the legacy architecture and adding instructions
for deploying DVR to the networking or admin guides.

3) Open vSwitch adds another level of complexity to already difficult
networking concepts, particularly with troubleshooting. Linux Bridge
provides a reliable alternative that reduces complexity, but DVR doesn't
support it. Should we add instructions for deploying Linux Bridge as an
alternative to Open vSwitch?

4) The neutron external network (ext-net) "magically" works although we
don't explicitly configure support for flat networks. For sanity, we should
probably adjust the configuration to support one flat network and adjust
the initial network instructions to use it as a flat provider network.

5) I'm seeing more deployments moving from novnc to spice consoles. Should
we configure spice instead of novnc?

6) I'm seeing more deployments moving from MySQL to MariaDB. Ubuntu 14.04
offers MariaDB 5.5 which more or less clones MySQL 5.5 including the
configuration files. I suspect RHEL 7, Fedora, and other RPM distributions
also offer MariaDB packages. Should we change all distributions to MariaDB?

[1] https://launchpad.net/~ubuntu-cloud-archive/+archive/ubuntu/juno-staging

Matt
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