1. LBaaS
Load Balancer as a Service

2. dguitarbite@aptira$ whoami
● dguitarbite on IRC and WWW
● Jr. Cloud Engineer @ Aptira
● OpenStack Contributor (docs)
● Noob Hacker
● Google dguitarbite for more ...

3. Contents
○ Overview
○ Features
○ Architecture Overview
○ Current Implementation
○ Future Roadmaps
○ Q n A

4. What is Load
Balancing?
Load Balancing is method for distributing workloads
across
● multiple computers/clusters
● network links
● CPU's, Disk Drives etc.
to be more precise
your Cloud ...
for
● optimizing resource use
● maximizing throughput
● minimizing response time
● avoiding overload

5. Why Load Balancer for OpenStack ?
○ Availability
○ Scalability
○ Manageability
○ Monitoring

6. Features
○ RESTful
○ CLI
○ Horizon Dash UI
○ HA Proxy Solutions
○ Support for Devstack

7. More on Load Balancing
● Load Balancing between VMs
● Session Persistence
● Health Mon (TCP, HTTP)
● Automatic Device Selection (Currently Only VMs)
● Sticky Sessions
● Dynamically adding/removing VMs to LB
● Graceful Exclusion of a VM from LB
● Health Monitoring and High Availability
● SSL offload/acceleration

8. Architecture
● Modular Structure
● Drivers
● Standard API
(openstack-common)

9. Design &
Implementation

10. Grizzly Implementation
○ HA Proxy Process per VIP
○ VIP on same subnet
○ NAT only
○ No Support for Multi-
Network Nodes
○ No HA Support

11. Plan for Havana
○ Multi Vendor Support
○ Tenant API
○ Network Topologies
○ Service Types to specify required service
○ Out of Box Solutions
○ Default Open Source Load Balancer Driver

12. Future RoadMap
○ next-gen unified API for tenants & cloud admins(PayPal, Atlas,
Mirantis and Amazon ELB)
○ Tighter Integration with OS
○ Support for HA
○ Resource Limits
○ Auto-Scaling
○ SSL Termination
○ Drivers for more LBs
○ Software Load Balancers on Demand
○ Server Farm Monitoring and Statistics

13. ThankYou
AnyQuestions?
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