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Install an Astara Load Balancer

How to configure Astara to be able to create load balancers

In this example we will create an image that can be used for both a router or a loadbalancer. Then we will configure both astara and neutron for loadbalancer support, which will use the LBAASV2 commands. We can then use the LBAASv2 API to create a loadbalancer.

Build loadbalancer applicance image:

Build an image to include loadbalancer support by using one of the two following commands. If you have a license for nginx plus you will be able to take advantage of some of these nginx-plus features but you must first copy over your nginx certs. Run this commad in the astara-appliance directory:

ELEMENTS_PATH=diskimage-builder/elements \
DIB_RELEASE=jessie DIB_EXTLINUX=1 \
DIB_ASTARA_ADVANCED_SERVICES=router,loadbalancer \
disk-image-create debian vm astara nginx -o astara-lb

or for nginx plus (nginx certs will need to be copied over before running this command). Run this commad in the astara-appliance directory:

ELEMENTS_PATH=diskimage-builder/elements \
DIB_RELEASE=jessie DIB_EXTLINUX=1 \
DIB_ASTARA_ADVANCED_SERVICES=router,loadbalancer \
disk-image-create debian vm astara nginx-plus -o astara-lb

Configure Neutron for Astara loadbalancer support

Ensure that neutron LBAAS packages are installed or install neutron-lbaas from source as follows:
```
git clone https://git.openstack.org/openstack/neutron-lbaas
cd neutron-lbaas
pip install -U .
```

2. Make the following changes to neutron.conf in the [DEFAULT] section:

core_plugin = astara_neutron.plugins.ml2_neutron_plugin.Ml2Plugin
service_plugins = astara_neutron.plugins.ml2_neutron_plugin.L3RouterPlugin,astara_neutron.plugins.lbaas_neutron_plugin.LoadBalancerPluginv2
api_extensions_path = /usr/local/lib/python2.7/dist-packages/astara_neutron/extensions:/usr/local/lib/python2.7/dist-packages/neutron_lbaas/extensions

in the [SERVICE_PROVIDERS] section (you may have to add this section if it doesn't exist):

service_provider = LOADBALANCERV2:LoggingNoop:neutron_lbaas.drivers.logging_noop.driver.LoggingNoopLoadBalancerDriver:default

Create the loadbalancer tables in the neutron database:

neutron-db-manage --subproject neutron-lbaas upgrade head

Configure Astara for loadbalancer support

Make the following changes to orchestrator.conf.

in the [DEFAULT] section:

enabled_drivers = router,loadbalancer

in the [LOADBALANCER] section:

image_uuid = <loadbalancer image ID>
instance_flavor = 6

(If you are using this image for the router also, in the [ROUTER] section, set the image_uuid to this value: also.)

Restart the neutron-server and astara services to pick up the changes:
```
restart neutron-server
restart astara
```

Create a loadbalancer

1. Build a loadbalancer (this assumes that you have two web servers at ips -WEB1_IP, WEB2_IP which will used in the following commands):

neutron lbaas-loadbalancer-create --name lb1 private-subnet
neutron lbaas-loadbalancer-show lb1 # Note the VIP address
neutron lbaas-listener-create --loadbalancer lb1 --protocol HTTP --protocol-port 80 --name listener1
neutron lbaas-pool-create --lb-algorithm ROUND_ROBIN --listener listener1 --protocol HTTP --name pool1
neutron lbaas-member-create  --subnet private-subnet --address 10.2.0.4 --protocol-port 80 --name mem1 pool1
neutron lbaas-member-create  --subnet private-subnet --address 10.2.0.5 --protocol-port 80 --name mem2 pool1
neutron lbaas-healthmonitor-create --delay 3 --type HTTP  --max-retries 3 --timeout 3 --pool pool1 --name hm1

Once finished you can delete everything using the following:

neutron lbaas-member-delete mem1 pool1
neutron lbaas-member-delete mem2 pool1
neutron lbaas-pool-delete pool1
neutron lbaas-listener-delete listener1
neutron lbaas-loadbalancer-delete lb1

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