Hi
vCO 5.5 provides out of box clustering techniques which enables vCO 5.5 to be installed in cluster mode.
Then you can choose between Active/Standby or Active/Active configuration
Selecting the Orchestrator Server Mode: vSphere 5.5 Documentation Center
If you need to create or import a Certificate, see the documentation here: vSphere 5.5 Documentation Center
You can check below VMware KB as an example on configuring a load balancer software with vCO 5.5
VMware KB: Setting up Nginx load balancing software with VMware vCenter Orchestrator 5.5
For detail configuration on the netscaler vpx load balancer, you can check the netscaler vpx load balancer configuration/admin guide.
Thanks,
Bayu
Bayu Wibowo | VCIX6-DCV/NV
Author of VMware NSX Cookbook http://bit.ly/NSXCookbook
https://github.com/bayupw/PowerNSX-Scripts
https://nz.linkedin.com/in/bayupw | twitter @bayupw