OpenStack Profile "Liberty" Support

We've done another round of updates the OpenStack profile and the images it's based on, and wanted to share the important changes -- and encourage you to migrate to this latest version insofar as possible.  Here's a quick summary:

• Liberty support (Kilo and Juno still available, but upgrade if you can)
• Keystone v3 API enabled by default for both Kilo and Liberty (but can select v2.0 if preferred)
• Migrate (for Kilo and greater) to the "openstack" CLI client for configuration, instead of the per-service CLI clients
• Parameters for choosing node type and link bandwidth
• Increase token and horizon (dashboard) timeouts to let web users remain logged in longer (these are parameters with long default values)
• Migrate (for Kilo and greater) to Keystone via WSGI/Apache (but this is also a parameter, so you can select the old method of the Keystone Python API server)

We've traditionally configured OpenStack in accordance with the installation documentation, using their defaults when possible.  However, this time, there are some notable changes:

• Keystone doesn't use Memcache by default (although it's an option)
• We continue to use the openvswitch Neutron driver to manage networks; the Liberty docs have switched to the linuxbridge driver
• We continue to use a split controller/networkmanager installation, unlike the docs, which now unite the controller and networkmanager.  We'll probably migrate to this eventually.
• We set the default resource limits to unlimited for Nova, Neutron, and Cinder (the default resource limits can be left intact by unchecking the quotas parameter)

Thanks for reading, and please report any problems to cloudlab-users@googlegroups.com .  If you're not a member, please join!