Hello , I want to know what is best method interfacing with QIP vra VRA 6.2?
1. Powershell Proxy Host?
2. REST API?
Which is the best method?
I know least amount of overhead is best path.
If the Qip version you use provides a REST API, and that REST API exposes the functionality you need, then likely using the HTTP REST Plugin from vRO to make direct REST calls to Qip is the easier way.
For Powershell you would need to setup a separate Powershell host, and run some cmdlets from there (I assume Qip provides cmdlets? ). Introduces more complexity with authentication, loading of external powershell modules ,...
For both plugin (not related to Qip thoug) you can find a lot of blog articles with examples, for Powershell make sure to read through these: http://kaloferov.com/blog/category/vmware/vco/powershell-plugin/
In our environment we use the ssh plugin and just run the cli. Not very elegant but it works and for some reason our dns team does not want to support the api. They say its buggy in whatever version we are running but I can neither confirm nor deny that statement.
We use the same method as you connecting ssh and this has been working great for us for a while now. QIP just got updated to 8.1 and with it the Rest and Soap APIs are exposed and it is on my list to start looking creating the API workflows