VMware vSphere Automation SDK for Ruby
The vSphere Automation SDK for Ruby enables programmatic access to vSphere. It includes Ruby libraries for accessing features available via the vSphere REST API including Virtual Machine management, vCenter Appliance management, Content Library and Tagging. The SDK contains samples for the features mentioned above including how to interoperate with vSphere APIs. For more information on the vSphere Web Services API samples, please refer to the vSphere Management SDK.
Please note, the vSphere Automation SDK for Ruby is now available as an Open Source SDK and can be contributed to or downloaded from Github here