RHBA-2017:2658 - Bug Fix Advisory

Topic

Updated OpenStack Dashboard packages that resolve various issues are now
available for Red Hat OpenStack Platform 10.0 (Newton) for RHEL 7.

Description

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

• OpenStack Dashboard

OpenStack Dashboard (horizon) provides administrators and users a graphical
interface to access, provision, and automate cloud-based resources. The
dashboard allows cloud administrators to get an overall view of the size
and state of the cloud, and it provides end-users a self-service portal to
provision their own resources within the limits set by administrators.

Changes to the python-django-horizon component:

• Cause: Some binary python modules used by Horizon were compiled with a flag that makes them use the simplified GIL state API.

Consequence: Since mod_wsgi uses sub-interpreters, and the simplified GIL state API is not re-entrant, this results in the mod_wsgi locking up and hanging, making the dashboard unavailable.

Fix: Added "WSGIApplicationGroup %{GLOBAL}" to mod_wsgi configuration, which forces it to always use the main interpreter instead of sub-interpreters.

Result: With that option, mod_wsgi works correctly no matter what options were used to compile the binary python modules. The slight performance penalty is not noticeable. (BZ#1479051)

Solution

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

Red Hat OpenStack Platform 10 runs on Red Hat Enterprise Linux 7.3.

The Red Hat OpenStack Platform 10 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 OpenStack Platform 10, including which

channels need to be enabled and disabled.

The Release Notes are available at:
https://access.redhat.com/documentation/en/red-hat-openstack-platform/10/paged/release-notes

This update is available through 'yum update' on systems registered through
Red Hat Subscription Manager. For more information about Red Hat
Subscription Manager, see:

https://access.redhat.com/documentation/en-US/Red_Hat_Subscription_Management/1/html/RHSM/index.html

Affected Products

• Red Hat OpenStack 10 x86_64

Fixes

• BZ - 1425581 - Horizon Error: Unable to update default quotas
• BZ - 1457747 - Can not choose flavor in dashboard if glance.min_disk > flavor.disk
• BZ - 1460135 - Change default options on dashboard
• BZ - 1478467 - Rebase python-django-horizon to 596ab88
• BZ - 1479051 - Horizon won't load with OSP11 - Script timed out before returning headers: django.wsgi
• BZ - 1480779 - Backport "update network which has subnets failed" to OSP10

CVEs

(none)

References

(none)