OpenStack

Getting Started with OpenStack and VMware vSphere

OpenStack

OpenStack

A. History of VMware Integrated OpenStack

B. Installation

C. Launching an Instance

D. Function Extension and Improvement 目录 CONTENTS

OpenStack

History of VMware Integrated OpenStack

VMware VCDriver

VMware ESXDriver

1. Originally written by Citrix

2. Updated by VMware

3. Allow Nova to communicate directly to an

ESXI host via the vSphere sdk

4. Removed in Juno

1. Developed by VMware for the Grizzly release

2. Allow Nova to communicate with a VMware

vCenter server managing a cluster of ESXI hosts

3. Principal Development

Point

•ESXdriver communicate directly to an ESXI host •Can’t support vsphere advanced features like vMotion,DRS and HA. •More physical hosts are needed to deploy nova-compute node.

OpenStack

History of VMware Integrated OpenStack

Hypervisor Support Matrix

OpenStack

Installation

Using Openstack with vSphere

• Openstack cloud be deployed in VM

• Vcenter Server cloud be deployed in

other VM too.

• leverages VMware NSX to provide

advanced networking functionality via

Neutron

PHOTO

OpenStack

Installation

Template Flavor+Image

OpenStack and vSphere: Conceptual Analogies

Virtual Machine

Instance

VMDK Volume

OpenStack

Installation

vSphere Requirements Single Datacenter Enable DRS and SDRS Storage: Shared Networking:port group,vlan, and

esxi firewall

Requirements

Openstack Requirments for vpshere 5.1 and later:

vSphere 5.0 and earlier additional set up: To mirror WSDL from vCenter

OpenStack

Launching an Instance

VMware driver architecture

• OpenStack sees three hypervisors.

• Each of them correspond to a cluster in

vcenter.

• Compute schedules at the granularity of a

cluster.

• Interacts with the OpenStack Image

Service to copy VMDK images from the

Image Service back end store.

• VMDK images are cached in the data

store.

PHOTO

OpenStack

Launching an Instance

Process of launch an Instance

1 2 3 4 5

• Upload image file to

vSphere datastore

• Register image by glance

• Create network by nova-network

• Query the hypervisor refer

to vmware cluster

• Create an instance using nova

boot command

• Launch instance in vSphere

OpenStack

Launching an Instance

Process of create a volume

1 2 3

• Create a volume using

cinder-create command

• Create an instance in vSphere

corresponding this volume

• There is the volume VM

OpenStack

Function Extension and Improvement

Case 1

VM Affinity Rule API List：1. Create affinity Group 2. Delete affinity Group 3. Describe affinity Group 4. Update affinity Group 5. Add vms to affinity Group

6. Remove vms from affinity Group

Nova-API

Create Affinity Group

Nova-Compute_manager

Create Affinity Group Object

Openstack DB

Save Affinity Group

Nova-API

Add vms to Affinity Group

Nova-Compute_Manager

Call vmware driver

VMware driver

Send Create affinity rule about vms to Vcenter

Vsphere

Add affinity rule in cluster

Nova-API

Remove vms to Affinity Group

Nova-Compute_Manager

Call vmware driver

VMware driver

Send update affinity rule about vms to Vcenter

Vsphere

Update affinity rule in cluster

Create:

Add:

Remove:

OpenStack

Function Extension and Improvement

Case 2

Shared volume API List：1. create shared volume 2. delete shared volume 3. attach shared volume to vms 4. detach shared from volume to vm

Create:

Attach:

Cinder-API

Create Volume with “shareable=true”arg

Cinder-Volume

Call vmware driver to create a Volume

Vsphere

Create a Volume

Nova-API

Attach shareable volume

Nova-Compute

Call vmware driver to attach shareable Volume to vm

Vsphere

Attach a Volume with shareable spec

OpenStack

Function Extension and Improvement

Case 3

Improve image download

1 2 3 4

• Make image file

• Registe fake image in glance

• Modify vmdk file and upload image

file to one of vSphere datastore

• When launch instances, just find

this image in all of vSphere

datastores without download

from glance.

• Reduce 50%+ time at first creation.

OpenStack

Reference

1 http://cloudarchitectmusings.com/2013/06/24/ openstack-for-vmware-admins-nova-compute-with-vsphere-part-1/

2 http://docs.openstack.org/developer/nova/support-matrix.html

3 http://www.vmware.com/files/pdf/techpaper/ VMWare-Getting-Started-with-OpenStack-and-vSphere.pdf

4 http://docs.openstack.org/trunk/config-reference/content/vmware.html

15

多一个机会，多一种人生

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Thanks!