OpenStack Load Balancer
as a Service (LBaaS) with
openSUSE® Leap
an advanced service of Neutron
Saputro Aryulianto
saputroyulianto@gmail.com

2
About Me
• Saputro Aryulianto
• 2+ year, System Administrator
• OpenStack Engineer, Btech
• Student, STIKOM Binaniaga Bogor
• Activist, GNU/Linux Bogor (GLiB)
• Member of Indonesia openSUSE Community
• Certified OpenStack Administrator

3
Agenda
• Intro
• OpenStack
• Neutron
• Load Balancing
• Load Balancer as a Service (LbaaS)
• Installation
• Load Testing
• Q/A

4
https://www.openstack.org/

5
OpenStack
• OpenStack is a set of software tools for building and
managing cloud computing platforms for public and
private clouds.
• OpenStack began in 2010 as a joint project of
Rackspace Hosting and NASA
• As of 2016, it is managed by the OpenStack
Foundation, a non-profit corporate entity established
in September 2012

6
Popular Project

7
Neutron
• Neutron one of the core components of OpenStack
provides the Networking capability for OpenStack. It
helps to ensure that each of the components of an
OpenStack deployment can communicate with one
another quickly and efficiently.

8
Load Balancing
• Load balancing is a key component of highly-
available infrastructures commonly used to improve
the performance and reliability of web sites,
applications, databases and other services by
distributing the workload across multiple servers.

9
Load Balancer as a Service
• Load Balancing as a Service (LBaaS) is an advanced
(Neutron) networking service that allows load
balancing of multi-node environments.
• It provides the ability to spread requests across
multiple servers thereby reducing the load on any
single server.

10
Load Balancer as a Service (cont.)
• LBaaS v2 has multiple implementations via different
service plug-ins.
• The two most common implementations use either
an agent or the Octavia services.
• Both implementations use the LBaaS v2 API.

11
LBaaS v2 Concepts

12
Load balancer
• The load balancer occupies a neutron network port
and has an IP address assigned from a subnet.

13
Listener
• Load balancers can listen for requests on multiple
ports. Each one of those ports is specified by a
listener.
• LBaaS v2 supports multiple listeners. The following
protocols are supported:
‒ TCP: generic TCP
‒ HTTP: HTTP
‒ HTTPS: HTTPS pass-through
‒ TERMINATED_HTTPS: HTTPS terminate

14
Pool
• A pool holds a list of members that serve content
through the load balancer.

15
Member
• Members are servers that serve traffic behind a load
balancer.
• Each member is specified by the IP address and port
that it uses to serve traffic.

16
Health monitor
• Members may go offline from time to time and health
monitors divert traffic away from members that are
not responding properly. Health monitors are
associated with pools.

Installation

18
Topology

19
Preflight
• openSUSE Leap 42.2 minimal installation
• Internet connection
• https://github.com/GLiBogor/leap42-newton-aio

20
Configuring LBaaS v2 with an agent
• zypper in openstack-neutron-lbaas openstack-
neutron-lbaas-agent python-neutron-lbaas
openstack-horizon-plugin-neutron-lbaas-ui
python-horizon-plugin-neutron-lbaas-ui
• vim /etc/neutron/neutron.conf
[DEFAULT]
...
service_plugins = [existing service
plugins],neutron_lbaas.services.loadbalancer.plu
gin.LoadBalancerPluginv2
...

21
Configuring LBaaS v2 with an agent
• vim /etc/neutron/neutron_lbaas.conf
[service_provider]
...
service_provider =
LOADBALANCERV2:Haproxy:neutron_lbaas.drivers.hap
roxy.plugin_driver.HaproxyOnHostPluginDriver:def
ault
...

22
Configuring LBaaS v2 with an agent
• vim /etc/neutron/lbaas_agent.ini
[DEFAULT]
interface_driver = INTERFACE_DRIVER
** Replace INTERFACE_DRIVER with the interface
driver that the layer-2 agent in your
environment uses. For example, openvswitch for
Open vSwitch or linuxbridge for Linux bridge

23
Configuring LBaaS v2 with an agent
• neutron-db-manage --subproject neutron-lbaas
upgrade head
• neutron-lbaasv2-agent
--config-file /etc/neutron/neutron.conf
--config-file /etc/neutron/lbaas_agent.ini

24
Configuring LBaaS v2 with an agent
• systemctl enable openstack-neutron-lbaasv2-
agent.service
• systemctl start openstack-neutron-lbaasv2-
agent.service
• systemctl status openstack-neutron-lbaasv2-
agent.service
• systemctl restart openstack-neutron.service
• systemctl status openstack-neutron.service

25
Enable LBaaS on Horizon Dashboard
• cat /srv/www/openstack-
dashboard/openstack_dashboard/local/local_settin
gs.py |grep enable_lb
• 'enable_lb': True,
• systemctl restart apache2.service
• systemctl status apache2.service

26
LBaaS Instance Wiring

Load Testing

28
ab - Apache HTTP server benchmarking
• ab is a tool for benchmarking your Apache
Hypertext Transfer Protocol (HTTP) server.
• This especially shows you how many requests per
second your Apache installation is capable of
serving.

Questions?

Thank You!

31
Refrence
• https://wiki.openstack.org/wiki/Neutron/LBaaS
• https://docs.openstack.org/newton/networking-guide
/config-lbaas.html
• https://github.com/GLiBogor/leap42-newton-aio
• https://github.com/tonyliu0592/opencontrail/wiki/
LBaaS-OpenStack
• https://httpd.apache.org/docs/2.4/programs/ab.html

32
Have a Lot of Fun, and Join Us At:
www.opensuse.org