181 lines
6.2 KiB
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181 lines
6.2 KiB
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=====================
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Horizon 2014.2 "Juno"
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=====================
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Release Overview
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================
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The Juno release cycle brings a significant update to the user experience;
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numerous stability improvements; support for Sahara; and significant
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enhancements in feature support for networking, volumes, databases and images.
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The community continues to grow and gain speed. Read on for more details.
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Highlights
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==========
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New Features
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------------
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Sahara
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~~~~~~
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The OpenStack Data Processing project (Sahara) was formally included into the
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integrated release in Juno and Horizon includes broad support for managing your
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data processing. You can specify and build clusters to utilize several data
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types with user specified jobs while tracking the progress of those jobs.
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Neutron
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~~~~~~~
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Neutron added several new features in Juno, including:
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* DVR (Distributed Virtual Routing)
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* L3 HA support
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* IPv6 subnet modes
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Horizon provides support for these new features with the Juno release. These
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features provide much greater flexibility in specifying software defined
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networks.
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An existing feature in Neutron that Horizon now supports is the MAC learning
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extension.
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Glance
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~~~~~~
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In Juno, Glance introduced the ability to manage a catalog of metadata
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definitions where users can register the metadata definitions to be used on
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various resource types including images, volumes, aggregates, and flavors.
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Support for viewing and editing the assignment of these metadata tags is
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included in Horizon.
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Cinder
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~~~~~~
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In a continued effort to provide more complete API support, several
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additional features of the Cinder API are now supported in Horizon in the
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Juno release.
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Some of these features include:
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* Creating and restoring volume backups
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* Enabling resetting the state of a snapshot
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* Enabling resetting the state of a volume
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* Supporting upload-to-image
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* Volume retype
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* QoS (quality of service) support.
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Trove
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~~~~~
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Trove supports using multiple types of datastores, e.g., mysql, redis, mongodb.
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Users can now select from the list of datastores supported by the cloud operator
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when creating their database instances.
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Another addition is support for utilizing and restoring from incremental
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database backups.
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To improve support for Neutron based clouds, when creating a database instance,
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the user can now specify the NIC for the database instance on creation allowing
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direct access to the instance by the user.
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Nova
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~~~~
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The new Nova instance actions view provides a list of all actions taken on
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all instances in the current project allowing users to view resulting errors or
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actions taken by other users on those instances.
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Administrators now have the ability to evacuate hosts off hypervisors which can
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aid in system maintenance by providing a mechanism to migrate all instances to
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other hosts.
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Improved Plugin Support
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~~~~~~~~~~~~~~~~~~~~~~~
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The plugin system in Horizon continued to improve in the Juno release.
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Some of those improvements:
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* Support for adding plugin specific AngularJS modules
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* Support for adding static files, e.g., CSS, JS, images
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* Ability to add exceptions
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* Fixing ordering issues
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* Numerous other bug fixes
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Enhanced RBAC support
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~~~~~~~~~~~~~~~~~~~~~
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In an ongoing effort to support richer role based access control (RBAC) in
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Horizon, the views for several more services were enhanced with RBAC checks to
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determine user access to actions. The newly supported services are compute,
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network and orchestration. These changes allow operators to implement finer
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grained access control than just "member" and "admin".
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The identity panels (domains, projects, users, roles, groups) have also been
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converted to support RBAC at the view level. The identity panels have been
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moved from the admin dashboard into their own 'Identity' dashboard and
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accessibility is determined by policies alone. This is the first step toward
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consolidating the near duplicate content of the project and admin dashboards
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into single views supporting a wide range of roles.
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UX Changes
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~~~~~~~~~~
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In Juno, Horizon transitioned to utilizing Bootstrap v3. Horizon had been
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pinned to an older version of Bootstrap for several releases. This change now
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allows Horizon to pick up numerous bug fixes and overall improvements in the
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Bootstrap framework. The look and feel remains mainly consistent with the
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Icehouse release.
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Under the Hood
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--------------
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Improved Translatability
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~~~~~~~~~~~~~~~~~~~~~~~~
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In an effort to improve the translations for Horizon, updates to remove
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concatenations and better handle tense were made.
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JavaScript Libraries Extracted
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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As part of the Horizon team's ongoing efforts to split the repository into more
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logical pieces, all the 3rd party JavaScript libraries that Horizon depends on
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have been removed from the Horizon code base and python xstatic packages have
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been utilized instead. The xstatic format allows for easy consumption by the
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Django framework Horizon is built on. Now JavaScript libraries are utilized
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like any other python dependency in Horizon.
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Conversion from LESS to SCSS
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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The supported stylesheets in Horizon have been converted to utilize SCSS rather
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than LESS. The change was necessary due to a prevalent lack of support for LESS
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compilers in python. This change also allowed us to upgrade to Bootstrap 3, as
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parts of the Bootstrap 3 LESS stylesheets were not supported by existing python
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based LESS compilers.
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Known Issues and Limitations
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============================
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Rendering issues in extensions
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------------------------------
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The conversion to utilizing Bootstrap v3 can cause content extensions written
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on top of Horizon to have rendering issues. Most of these are fixed by a simple
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CSS class name substitutions. These issues are primarily seen with buttons and
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panel content widths.
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Online Compression
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------------------
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With the move to SCSS, there may be issues with utilizing online compression in
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non-DEBUG mode in Horizon. Offline compression continues to work as in previous
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releases.
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https://bugs.launchpad.net/horizon/+bug/1379761
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Neutron L3 HA
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-------------
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The HA property is updateable in the UI, however, Neutron API does not allow the
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update operation because toggling HA support does not work.
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https://bugs.launchpad.net/horizon/+bug/1379761
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