The presentation on OpenStack Networking Loadbalancing-as-a-service held at Havana summit in Portland, 18 Apr 2013

1. Load Balancing
as-a-service
Ilya Shakhat
Eugene Nikanorov

2. Avishay, Eugene, KC, Leon, Mark, Oleg, Youcef
... and all who helped with discussions,
specifications and testing
Thanks!

3. ● History
Agenda
● Grizzly
○ features
○ architecture
○ workflow
● Future

4. ● Stand-alone solutions:
○ Atlas (Java)
○ Equilibrium (Python)
● In Grizzly became Quantum extension
History

5. ● REST API
● CLI
● UI in Horizon
● On-host HAProxy
● DevStack out-of-box support
Features Overview

6. ● Load balancing between services on VMs
● Load balancing methods (e.g. round-robin)
● Session persistence
● Health monitoring (TCP, HTTP)
● Connection limit
Load Balancing Features

7. Quantum
Quantum Service Plugins
Core Plugin
Service Plugin
Service Plugin
Service Plugin
L2 and L3 network
LB Service

8. Architecture
Plugin
Agent HAProxy process
RPC
REST API
DB
Extension
python-quantumclient
Horizon
Quantum

9. Pool
Model
Member Member
VM A
10.0.0.4:80
VM B
10.0.0.5:80
Vip (10.0.0.10:80)
Health
Monitor
Subnet
Subnet

10. Wiring
VM A Load Balancer
Router
10.0.0.1010.0.0.4
VM B
10.0.0.5
External Traffic
Internal Trafficfloating ip
172.0.0.10

11. 1. Create pool
2. Create members (1 per VM / service)
3. Create vip for the pool
4. (opt.) Create health monitor and
associate with Pool
Workflow

12. UI | Step 1

13. UI | Step 2

14. UI | Step 3

15. UI | Step 4

16. ● Support of HW / VM LBs
○ driver API
● Device Inventory
● Service insertion modes
○ routed mode
○ 1-arm
○ other modes
LBaaS Next

17. Architecture
LBaaS Plugin
Agent
LB A
LBaaS Extension
Driver A Driver B
Device Inventory Plugin
maps service type to device
(mgmt interface)
Device Inventory Ext.
LB B

18. Routed Mode Insertion
VM A
Load Balancer
10.0.0.4
VM B
10.0.0.5
provider
network
tenant
network
172.0.0.10

19. Q&A