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Bug 1049785

Summary:	A redundant image copy is created when creating a volume from a glance image. (All-in-One)
Product:	[Community] RDO	Reporter:	Eduardo Warszawski <ewarszaw>
Component:	openstack-cinder	Assignee:	Eric Harney <eharney>
Status:	CLOSED NOTABUG	QA Contact:	Dafna Ron <dron>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	eharney, fpercoco, iheim, lars, pasik, yeylon
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-03-25 18:51:11 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Eduardo Warszawski 2014-01-08 08:37:02 UTC

Description of problem:
A redundant image copy is created when creating a volume from a glance image.
Since it is a all in one setup there is no need for craeate an intermediate copy.

Version-Release number of selected component (if applicable):


How reproducible:
cinder create --image-id 3d597ebb-ce76-4323-a71d-f45a3b08ca22 7


Actual results:
The image is copied to a temporal one.
2228508 -rw-------. 1 cinder cinder 294M Jan  7 16:33 /var/lib/cinder/conversion/tmp5wf91A                                                                                                                                                   
2228506 -rw-r-----. 1 glance glance 294M Jan  7 16:17 /var/lib/glance/images/3d597ebb-ce76-4323-a71d-f45a3b08ca22                                                                                                                            

# diff -s /var/lib/cinder/conversion/tmp5wf91A /var/lib/glance/images/3d597ebb-ce76-4323-a71d-f45a3b08ca22
Files /var/lib/cinder/conversion/tmp5wf91A and /var/lib/glance/images/3d597ebb-ce76-4323-a71d-f45a3b08ca22 are identical


Expected results:
Since is the same node there is no need for the copy.

Additional info:

Comment 1 Eric Harney 2014-01-13 21:48:31 UTC

It looks like setting allowed_url_schemes=file in cinder.conf may allow this today.

Comment 3 Lars Kellogg-Stedman 2015-03-25 18:51:11 UTC

As Eric says in #1, this feature is already available.  You would need to set DEFAULT/show_image_direct_url=True in glance-api.conf and set allowed_direct_url_schemes=file in cinder.conf.