A method and apparatus for configuring an overlay network are provided. In the method and apparatus, a plurality of applications are deployed for execution on one or more computing systems. The plurality of applications may be part of an application group. Credentials information is provided to the one or more computing systems, whereby the credentials information is usable for securing communication between at least two applications of the plurality of applications that are executed on different computing systems. Further, configuration information that is usable for establishing a routing path for data sent by or addressed to a first application of the plurality of applications is provided to at least one computing system.