tripleo-heat-templates/releasenotes/notes/nova_direct_glance_rbd_download-e945933da26f10f0.yaml
Martin Schuppert 91837d4fa7 Add new parameters to configure nova-compute direct rbd image download
If rbd is used for glance, but compute is using local ephemeral storage,
nova-compute can direct download the images in this scenario from the
glance ceph pool via rbd, instead going through glance api.

This change introduce new compute role based parameters to enable direct
download of glance images via rbd. If NovaGlanceEnableRbdDownload is set,
per default the global RBD glance parameters are used, CephClientUserName
GlanceRbdPoolName and CephClusterName for the used ceph.conf.

Glance also support multi storage backends which can be configured using
GlanceMultistoreConfig. If additional RBD glance backends are configured,
the NovaGlanceRbdDownloadMultistoreID can be used to pointing to the
hash key (backend ID) of GlanceMultistoreConfig to use.

Depends-On: https://review.opendev.org/c/openstack/puppet-tripleo/+/772168
Depends-On: https://review.opendev.org/c/openstack/puppet-nova/+/770687
Change-Id: I020da468d909bd98819f1e3618bf905260791d9b
2021-02-04 13:24:57 +01:00

18 lines
965 B
YAML

---
features:
- |
Introduce new compute role based parameter NovaGlanceEnableRbdDownload
to enable direct download if rbd is used for glance, but compute is using
local ephemeral storage, to allow nova-compute to direct download the
images in this scenario from the glance ceph pool via rbd, instead going
through glance api.
If NovaGlanceEnableRbdDownload is set, per default the global RBD glance
parameters are used, CephClientUserName GlanceRbdPoolName and
CephClusterName for the used ceph.conf.
Glance supports multi storage backends which can be configured using
GlanceMultistoreConfig. If additional RBD glance backends are configured,
the NovaGlanceRbdDownloadMultistoreID can be used to pointing to the
hash key (backend ID) of GlanceMultistoreConfig to use. If
CephClientUserName or GlanceRbdPoolName are not set in the
GlanceMultistoreConfig, the global values of those parameters will be used.