• Virtual private datacenter management
• KVM as the target hypervisor (x86_64|ppc|ppc64)
• VMs usually special!

• Cloud computing solution
• Multiple hypervisors
  • KVM (x86_64)
  • Hyper-V
  • VMware
  • XenServer
• Typically disposable VMs

External providers

• 3rd party products that provide core entities:
  • Hosts
  • Network
  • Storage domains
• Configure once, use everywhere
• Example providers...

Image Service - Glance

Introduction

• Virtual disk images services:
  • discovery
  • registration
  • delivery
• RESTful API for metadata and image retrieval
• Varied backing storage possibilities:
  • local fs
  • Swift
  • S3
  • rbd
  • cinder
  • vsphere

Formats

• Virtual disk formats:
  • raw
  • qcow2 - qemu
  • vdi - VirtualBox, qemu
  • iso
  • vhd, vmdk - MS, VMware, Xen
  • aki, ari, ami - Amazon
• Container formats (with VM metadata):
  • bare (no metadata)
  • ovf
  • aki, ari, ami - Amazon
  • ova (tarred ovf)

oVirt current use cases

• Import/Export disk images/templates
• Backing up unlimited amount of VM disks

oVirt future use cases

• Store ISOs and use them natively in oVirt VMs
• Import/Export full VMs/templates with:
  • Complete VM definition
  • Multiple disks
  • Snapshots

Connecting to oVirt

Image discovery

Image importing

Image importing

Image exporting

Image exporting

Image exporting

oVirt Image repository

Current limitations

• Not possible to export with multiple volumes
  • Snapshotted disks
  • Thin-provisioned over a template
• No live VM export
• No raw image sparseness supported
• No image download resuming capability

Future

• Delete images
• online snapshot squashing
• Integrated WebUI upload/download
• Consume ISOs natively
• Full VM import/export

Network Service - Neutron

Introduction

• Networking as a service:
  • Layer 2
  • Layer 3
  • Load Balancing
  • Firewall
  • Tunneling
  • VPN
• RESTful API for metadata and image retrieval
• Plugins:
  • Open vSwitch
  • Cisco UCS
  • Linux Bridge
  • Modular Layer 2
  • etc

Architecture

Advantages

• Overlay networks
• IP address management
• Security groups
• L3-L7 services

Best of both worlds

Host networking: oVirt

VM networking: Neutron

oVirt current use cases

• Import/Export networks
• Create subnets with IPAM
• Attach vNics to ports
• Overlay networks*

Connecting to oVirt

Connecting to oVirt

Network importing

Network importing

Network creation

Subnet creation

Network creation

Host configuration

vNic profile

vNic creating

Neutron appliance

• Ready made Neutron Service VM in four steps
  1. Import image from oVirt's public glance
  2. Create a VM from it with two vNics
  3. Add it as a provider
  4. Host agent configuration
• Based on Centos 7
• Running IceHouse RDO's Neutron

Future

• Seamless tunneling integration
• Leveraging more XaaS
• Enhancing Neutron vendor plugin integration