openstack/openstack-ansible
Code Issues Proposed changes

Docs/Reno: Make default_schedule_zone configurable

Browse Source 
This patch adds documentation and release notes for the new
default_schedule_zone variable proposed in
I69627d7987a3158a3a005406245ea6df881715d8.

Closes-Bug: 1472428

Change-Id: I51d4dcbcc7842f3f4b1650a18195c3a9215b5383
This commit is contained in:
Major Hayden 2016-03-09 09:52:04 -06:00
parent 39d3bc7492
commit 159d0bb94b
2 changed files with 19 additions and 0 deletions
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14
doc/source/install-guide/configure-nova.rst
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@ -7,6 +7,20 @@ The compute service (nova) handles the creation of virtual machines within an
OpenStack environment. Many of the default options used by OpenStack-Ansible
are found within `defaults/main.yml` within the nova role.
Availability zones
~~~~~~~~~~~~~~~~~~
Deployers with multiple availability zones (AZ's) can set the
``nova_default_schedule_zone`` Ansible variable to specify an AZ to use for
instance build requests where an AZ is not provided. This could be useful in
environments with different types of hypervisors where builds are sent to
certain hardware types based on their resource requirements.
For example, if a deployer has some servers with spinning hard disks and others
with SSDs, they can set the default AZ to one that uses only spinning disks (to
save costs). To build an instance using SSDs, users must select an AZ that
includes SSDs and provide that AZ in their instance build request.
Block device tuning for Ceph (RBD)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

5
releasenotes/notes/nova-default-schedule-zone-934e236985f34cf4.yaml Normal file
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@ -0,0 +1,5 @@
---
features:
- Deployers can set a default availability zone (AZ) for new instance builds
which do not provide an AZ. The value is ``None`` by default, but it can be
changed with the ``nova_default_schedule_zone`` Ansible variable.