
This patch adds support to specify the URL to be used to publish the node image when using virtual media. The option is available under `driver_info['external_http_url']`, if set this value has priority over the values in the configuration file ([deploy]/external_http_url and [deploy]/http_url) Story: 2010221 Task: 45970 Change-Id: If6a117a756b7d2a04251792f88c2ee412a040b28