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Bug 1041825

Summary: [RFE][glance]: VMware Datastore Storage Backend
Product: Red Hat OpenStack Reporter: RHOS Integration <rhos-integ>
Component: openstack-glanceAssignee: Flavio Percoco <fpercoco>
Status: CLOSED ERRATA QA Contact: Jaroslav Henner <jhenner>
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: adahms, ddomingo, eglynn, fpercoco, lhh, markmc, mlopes, nlevinki, sclewis, scohen, sgordon, sgotliv, yeylon
Target Milestone: Upstream M3Keywords: CodeChange, FutureFeature, Triaged
Target Release: 5.0 (RHEL 7)Flags: scohen: needinfo+
Hardware: Unspecified   
OS: Unspecified   
URL: https://blueprints.launchpad.net/glance/+spec/vmware-datastore-storage-backend
Whiteboard: upstream_milestone_icehouse-3 upstream_status_implemented upstream_definition_approved
Fixed In Version: openstack-glance-2014.1-2.el7ost Doc Type: Enhancement
Doc Text:
This update adds support for VMware's datastore and allows Glance to store images in such datastores. The update adds a dependency on 'oslo.vmware' and a set of configuration parameters specific to VMware datastores.
 Story Points: ---
Clone Of:
: 1082600 1083794 1110336 1114623 (view as bug list) Environment:
Last Closed: 2014-07-08 15:32:01 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1099499    
Bug Blocks: 1082600, 1083794, 1110336, 1114623    

Description RHOS Integration 2013-12-12 19:30:45 UTC 
Cloned from launchpad blueprint https://blueprints.launchpad.net/glance/+spec/vmware-datastore-storage-backend.

Description:

A VMware datastore storage backend*:

The VMware driver in Nova has to copy the image from the storage backend (filesystem for example) to the datastore to be able boot the VM.
We can get rid of this extra network transfer by having a datastore storage backend.
In this case, Nova will need to have an image handler** that is using the location of the image instead of downloading the bits to spawn an instance more efficiently.
Also, existing VMware customers will be able to create images using the "location(s)" (v2 api) to locate their existing files in the datastore.

The VMware datastore will be able to have its own implementation of the Store interface***, namely configure, get, add, delete, etc.

* https://github.com/openstack/glance/tree/master/glance/store
** https://review.openstack.org/#/c/33409/
*** https://github.com/openstack/glance/blob/master/glance/store/base.py

More information about datastore: http://pubs.vmware.com/vi3/sdk/ReferenceGuide/vim.Datastore.html

Specification URL (additional information):

None
Comment 10 Jaroslav Henner 2014-06-17 13:18:00 UTC 
It seems it is not there:

# List of which store classes and store class locations are
# currently known to glance at startup.
# Existing but disabled stores:
#      glance.store.rbd.Store,
#      glance.store.s3.Store,
#      glance.store.swift.Store,
#      glance.store.cinder.Store,
#      glance.store.gridfs.Store,
#known_stores=glance.store.filesystem.Store,
#               glance.store.http.Store


I cannot see the "vsphere", though I have read that it should be available. Here:
http://docs.openstack.org/developer/glance/configuring.html

On the other hand, nova should be able to have multiple location support:
https://review.openstack.org/#/c/33409/

So I am confused about this.
Comment 11 Flavio Percoco 2014-06-19 13:14:57 UTC 
The store is there, it's just disabled by default.

In order to use it, you need to add `glance.store.vmware_datastore.Store` to the `known_stores` option and uncomment that option in the `glance-api.conf` file.
Comment 18 Jaroslav Henner 2014-06-30 13:58:19 UTC 
We are lacking deps on RHEL 6.5 as well as on RHEL 7.0 so I am cloning the bug to to RHEL 6.5.

pssh -l root -H 10.34.68.237 -H 10.34.68.219 -i "hostname; cat /etc/redhat-release; openstack-config --set /etc/glance/glance-api.conf DEFAULT known_stores glance.store.vmware_datastore.Store;  openstack-service restart glance; sleep 3; openstack-service status glance; grep 'ImportError: No module named vmware' /var/log/glance/*.log | tail -n 3"

[1] 15:54:54 [SUCCESS] 10.34.68.237
jhenner-node-permanent-6v5.novalocal
Red Hat Enterprise Linux Server release 6.5 (Santiago)
Stopping openstack-glance-api: [FAILED]
Starting openstack-glance-api: [  OK  ]
Stopping openstack-glance-registry: [  OK  ]
Starting openstack-glance-registry: [  OK  ]
openstack-glance-api dead but pid file exists
openstack-glance-registry (pid  8092) is running...
/var/log/glance/api.log:2014-06-30 09:51:14.122 7959 TRACE glance ImportError: No module named vmware
/var/log/glance/api.log:2014-06-30 09:51:24.987 8070 CRITICAL glance [-] ImportError: No module named vmware
/var/log/glance/api.log:2014-06-30 09:51:24.987 8070 TRACE glance ImportError: No module named vmware
Stderr: Warning: Permanently added '10.34.68.237' (RSA) to the list of known hosts.
[2] 15:54:54 [SUCCESS] 10.34.68.219
jhenner-node-permanent-7v0.novalocal
Red Hat Enterprise Linux Server release 7.0 (Maipo)
openstack-glance-api (pid 0) is failed
openstack-glance-registry (pid 28301) is active
/var/log/glance/api.log:2014-06-30 09:50:37.446 28214 TRACE glance ImportError: No module named vmware
/var/log/glance/api.log:2014-06-30 09:50:48.183 28297 CRITICAL glance [-] ImportError: No module named vmware
/var/log/glance/api.log:2014-06-30 09:50:48.183 28297 TRACE glance ImportError: No module named vmware
Stderr: Warning: Permanently added '10.34.68.219' (RSA) to the list of known hosts
Comment 23 errata-xmlrpc 2014-07-08 15:32:01 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHEA-2014-0851.html