A system and method are described for provisioning and managing virtual instances of a computing application running within a public virtualization space (referred to as a hosted service system). A hosted service system may be configured to provide automated administration of the computing application, replacing the administration tasks that would otherwise be performed by the customer when running in an on-premise production deployment and to provide encrypted networking and other services that are specific to the public virtualization environment and are designed to provide a secure integration fabric between a customer's own private data center and virtual instances of the computing application running within an insecure public virtualization service.