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Bug 1338715

Summary:	NFS over AF_VSOCK in <filesystem>
Product:	Red Hat Enterprise Linux 7	Reporter:	John Spray <john.spray>
Component:	libvirt	Assignee:	Ján Tomko <jtomko>
Status:	CLOSED DUPLICATE	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	7.4	CC:	hannsj_uhl, rbalakri, stefanha
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-09-21 15:05:52 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 John Spray 2016-05-23 10:18:57 UTC

VSOCK is a new transport that allows us to efficiently expose any network service (such as a network filesystem) from hypervisors to guests, without doing any IP plumbing.

The driving use case behind this is the desire to have an efficient and secure mechanism for exposing CephFS into OpenStack guests.  This involves changes all the way up the stack (kernel-qemu-libvirt-nova-manila)

We need libvirt to provide an extended <filesystem> element that can configure NFS/VSOCK to expose filesystems to guests.

Related mailing list thread: http://www.spinics.net/linux/fedora/libvir/msg129462.html

Stefan's Qemu and kernel changes are here:
http://qemu-project.org/Features/VirtioVsock

The NFS-ganesha development branch already has VSOCK support:
https://github.com/nfs-ganesha/nfs-ganesha/tree/next

Related Nova spec:
https://review.openstack.org/#/c/310050/5

Comment 1 Stefan Hajnoczi 2016-09-21 15:05:52 UTC

I noticed bz#1294884 is the same feature.  Mark this one a duplicate since the other BZ has "depends on" relationships with other relevant BZs.

*** This bug has been marked as a duplicate of bug 1294884 ***