Hp rhev-m-driver-romil

© Copyright 2013 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.

RHEV-M/oVirt Nova Proxy DriverRomil Gupta, Srinivasa Acharya, Raj Narayan Marndi and Barath Ram G April 18, 2013

© Copyright 2013 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice.2

Agenda

• Why RHEV-M/oVirt Nova Driver• What is RHEV-M/oVirt Nova Driver• Nova Driver high level Architecture• Functionality implemented• Demonstration• Pending implementation• Plans for contribution• References


Why RHEV-M/oVirt Nova Driver• RHEV-M / oVirt is the popular virtualization manager for KVM

environments in data centers• Enterprises and Open source community adopting RHEV-M/oVirt• RHEV-H / oVirtNode is limited footprint Hypervisor• RHEV-H / oVirtNode is managed by RHEV-M / oVirt


Nova compute proxy driver for RHEV-M / oVirt• Modeled inline with Nova vCenter proxy driver• Clusters are modeled as Openstack computes• Compute capacity is the aggregated capacity of the hosts in the

cluster• Default Openstack scheduler is used for provisioning.• RHEV-M / oVirt is responsible for selecting the host within selected

cluster.• RHEV-M / oVirt templates used instead of glance images for

provisioning.


RHEV-M/oVirt driver architecture

Compute1

Compute n

Cluster 1

Cluster 2

Cluster n

Compute 1

Compute n

Proxy Queue

Nova Scheduler

Proxy Nova Compute for RHEV-M/oVirt Running on VM/Physical machine

RHEV-M /oVirt

KVMHost n

KVMHost n

KVMHost n

KVMHost n

OpenStack Cloud Controller

• Host 1• Host 2Cluster1

• Host 3• Host 4

Cluster 2

• Host n-1• Host n-2

Cluster n

<< uses for sending requests>>

<< uses for selecting compute node>>

<< creates one record for each cluster>>

<< creates the queue /topic >>

<< modelled as >><< modeled as >>

Nova Database Table = compute_nodes

Standalone KVM hosts


RHEV-M/oVirt templates in Glance

Image 1

Template 2

Template 1

Proxy Nova Compute for RHEV-M/oVirt running on VM/Physical machine

RHEV-M /oVirt NFS DataStore

OpenStack Glance server

<< uses template for provisioning >>

Image n

Template n

Glance Database Table = images

Glance Stores

Swift

S3

File system

rdb

<< Registered

>>

<< location>>

<< location>>

Command : glance image-create

Templates

<< Registered

>>

<< Registered >>


Nova Functions Mapping with RHEV-M

boot (Boot a new instance) Create new VM

delete (Immediately shut down and delete a instance ) Shutdown and Remove a VM

reboot (Reboot a instance) Shutdown and Run a VM

suspend( suspend a instance) Suspend a VM

resume (resume a instance) Run a VM

rebuild (Shutdown,re-image and reboot a instance) Shutdown , change the template and Run a VM

stop ( Stop a instance) Stop a VM

start ( Start a instance) Run a VM

show (Show details about the given instance )

list (List all instances)

ssh (SSH into a instance) SSH to VM

image-delete( Delete an image) Remove template

image-list (Print a list of available images to boot from) Display all templates

image-show(Show details about the given image) Display details of all templates

Nova functionality implemented


Glance functionality implemented Glance Functions Mapping with RHEV-M

Glance image-create (Adds a new image to Glance) Register a template to Glance

glance index (Returns basic information for all public images) Display the registered templates

glance image-update (Updates an image's metadata in Glance)

Update the properties of template

glance image-delete (Deletes an image from Glance) Remove a template

glance details (Return detailed information about images in Glance)

glance show (Show detailed information about an image in Glance)


Demonstration setup

RHEV-M /oVirt NFS DataStorage

VM Data &

Templates

RHEV-M /oVirt NFS ISO Storage

Operating system ISO

images

Public Network

clustyed

Host 1

Cluster 1 Cluster 2

Host 2 Host 3

VM

VM VM

VM

VM

VM

OpenStack Single Node

Setup(Running Horizon, Keystone , Nova-*,

Glance,Quantum etc)

Private Network

RHEV-M

ovirt-engine-sdk-3.2.0.5-1


Next Steps• Graduation• Validate community interest in RHEV-M / oVirt Model

• Contribute the basic code to the community

• Community involvement in driving this for Havana

• Feature enhancements• Cinder Integration

• Quantum Integration

• Live migration

• Selecting specific clusters as compute resources

• Hardening• Unit tests and tempest integration tests

• Explore driving enhancements through Openstack India User Group


Acknowledgements• HP provided the required guidance in conceptualizing and designing the driver• Srinivasa Acharya [email protected]

• Raj Narayan Marndi [email protected]

• Rahul Krishna Upadhyaya [email protected]

• Realization through industry and university collaboration ( HP & Manipal Institute of Technology, Manipal, India )

• Romil Gupta [email protected]

mailto:[email protected]





References• oVirt • http://www.ovirt.org/Home

• Redhat Enterprise Virtualization • https://access.redhat.com/products/Red_Hat_Enterprise_Virtualization/

• RHEV-M/oVirt REST APIs • https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.0/html/REST_

API_Guide/index.html

• RHEV-M/oVirt proxy driver blue prints• https://blueprints.launchpad.net/nova/+spec/rhev-m-ovirt-clusters-as-compute-resources

• https://blueprints.launchpad.net/glance/+spec/rhev-m-ovirt-templates-as-glance-images

http://www.ovirt.org/Home

https://access.redhat.com/products/Red_Hat_Enterprise_Virtualization/

https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.0/html/REST_API_Guide/index.html

https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.0/html/REST_API_Guide/index.html

https://blueprints.launchpad.net/nova/+spec/rhev-m-ovirt-clusters-as-compute-resources

https://blueprints.launchpad.net/glance/+spec/rhev-m-ovirt-templates-as-glance-images

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