The Liberty release, the second major
OpenStack update this year, includes a wealth of new projects and
features, while core technologies continue to evolve.
The OpenStack Liberty release, set to
become generally available on Oct. 15, will provide users of the
open-source cloud platform with new projects and features. The second
major OpenStack update in 2015, the Liberty release follows Kilo,
which debuted on April 30.OpenStack Liberty is noteworthy for many
reasons, not the least of which is the fact that it is the first release
under the “Big Tent”
model, which takes a more inclusive approach for projects. As such,
with OpenStack Liberty, there are more new projects as part of the
coordinated release than ever before, including SearchLight search,
Zaqar messaging, Barbican key manager, Manila shared file system and
Designate DNS services among others.”OpenStack is a platform for
integrating a wide variety of technologies,” Jonathan Bryce, executive
director of the OpenStack Foundation, told eWEEK.
“With the Big Tent shift, it has allowed people within the OpenStack
community to select different focus areas, so we’re seeing a lot of
innovation.”The SearchLight search project in OpenStack Liberty is a new
effort that has come up in the last year, Bryce said. SearchLight uses
the open-source ElasticSearch technology to enable users to query across
an OpenStack deployment. Bryce noted that OpenStack has been using
ElasticSearch as part of its development process for several years to
search though development logs and test results. He added that members
of the OpenStack community thought about how to evolve the limited use
of ElasticSearch within OpenStack development into a full OpenStack
cloud service, which is now what SearchLight represents.
As an integration platform, OpenStack as
a platform always seeks to enable multiple technology options within
any given service, and SearchLight is likely not going to be an
exception. Currently, SearchLight relies on ElasticSearch, but there is a
plug-in system that is part of the overall architecture, Bryce said.
“So while ElasticSearch is currently the
default and the reference implementation, the design of SearchLight is
built to enable other search systems and back-ends,” Bryce said.In
contrast to SearchLight, which is new to the OpenStack community,
development on the Zaqar messaging service has been ongoing for several
years. The Zaqar project was originally known as Marconi, and was
renamed in 2014. Zaqar is a multi-tenant cloud messaging service,
somewhat akin to what Amazon’s Simple Queue Service (SQS)
delivers.”Zaqar is a project that is meant to be a plug-in-driven
system,” Bryce explained. “Really, it’s about providing multi-tenant
messaging via a REST API.”Nova ComputeWhile the Big
Tent model provides a platform for many different projects to be
included with OpenStack, the core projects are also getting attention in
the Liberty release. The Nova compute project adds multiple features to
OpenStack’s core server virtualization effort. For Bryce, the biggest
new feature is Cells version 2. Cells first landed in the OpenStack Grizzly release
back in April 2013 as a technology to enable multiple Nova Compute
modules to be managed by a single Nova API.”Cells came out of Rackspace
as a technology to help scale across data centers and geographic
regions,” Bryce said. “The first version took a long time to get
upstream as it was very specific to the Rackspace environment.”With
Cells version 2, the model is significantly more generic, enabling
broader use and deployment options.
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