With Neutron LBaaS now installed, we can use this through the Neutron API and command line. This allows us to create simple HA Proxy Load Balance services for our instances. We do this by creating Load Balance pools and adding the running instances to those pools. Optionally, we can add in monitoring to help the Load Balancer decide whether to send traffic to an instance or not.
In this section, we will configure a basic HTTP Load Balancer pool with two instances running Apache. The result will be the ability to use the HTTP Load Balancer pool address to send traffic to two instances running Apache.
Ensure you are logged into a Ubuntu host that has access to our OpenStack environment on the 192.168.100.0/24 public network. This host will be used to run client tools against the OpenStack environment created. If you are using the accompanying Vagrant environment, as described in the Preface, you can use the controller node. This node has the python-neutronclient...