Generate a requisition from vSphere

[agalue]

Similar to the DNS use case, it would be useful to connect to vCenter and generate a requisition similar to how the VMWare Integration in OpenNMS would do it.

It turns out that VMWare have a Go Library to manage anything on a vSphere environment:

https://github.com/vmware/govmomi

[agalue]

The idea would having commands like this:

onmsctl inventory vmware allNodes
onmsctl inventory vmware --only-hosts --requisition myHosts generate 10.0.0.1
onmsctl inventory vmware --only-vms --requisition myVMs generate 10.0.0.1

The user should pass the vCenter IP or FQDN as well as the name of the requisition as a parameter. If the name of the requisition is omitted, the name of the vCenter host will be used.

Of course, the user can provide:

• --username user to connect to vCenter
• --password the password of the user used to connect to vCenter
• --insecure to avoid validating the HTTPS certificate of the vCenter API

That will generate a YAML with the requisition, but the format can be changed accordingly.