RHBA-2016:0037 - Bug Fix Advisory

Topic

Updated OpenStack Orchestration packages that resolve various issues are
now available for Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno)
for RHEL 7.

Description

Red Hat Enterprise Linux OpenStack Platform provides the facilities for
building a private or public infrastructure-as-a-service (IaaS) cloud
running on commonly available physical hardware. This advisory includes
packages for:

• OpenStack Orchestration service

OpenStack Orchestration (heat) is a template-driven engine used to specify
and deploy configurations for Compute, Storage, and OpenStack Networking.
It can also be used to automate post-deployment actions, which in turn
allows automated provisioning of infrastructure, services, and
applications. Orchestration can also be integrated with Telemetry alarms to
implement auto-scaling for certain infrastructure resources.

This update addresses the following issues:

• Previously, there were cases where it took a long time to create a new resource as requested by the scaling operation on an autoscaling group resource, for instance, a nova server creation followed by a complex SoftwareDeployment. The cooldown timestamp was not generated until this was complete.

During this process, any additional alarms that were triggered were not blocked by the current cooldown checking mechanism, so the group size could be adjusted too many times.

With this release, the autoscaling group now ignores alarms received while a scaling operation is in progress. As a result, autoscaling groups no longer act on multiple alarms inside the cooldown period and the issue is now resolved. (BZ#1262156)

Solution

Before applying this update, ensure all previously released errata relevant
to your system have been applied.

Red Hat Enterprise Linux OpenStack Platform 6 runs on Red Hat Enterprise
Linux 7.2.

The Red Hat Enterprise Linux OpenStack Platform 6 Release Notes contain the
following:

• An explanation of the way in which the provided components interact to

form a working cloud computing environment.

• Technology Previews, Recommended Practices, and Known Issues.
• The channels required for Red Hat Enterprise Linux OpenStack Platform 6,

including which channels need to be enabled and disabled.

The Release Notes are available at:
https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux_OpenStack_Platform/6/html/Release_Notes/index.html

This update is available through the Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258

Affected Products

• Red Hat OpenStack 6.0 x86_64

Fixes

• BZ - 1259255 - heat results in error state when parameter changes and there is an underlying issue during stack-update
• BZ - 1261077 - heat stack delete fails

CVEs

(none)

References

• http://www.redhat.com/security/updates/classification/#normal