.. This work is licensed under a Creative Commons Attribution 4.0 International License. .. http://creativecommons.org/licenses/by/4.0 Service Discovery ================= Service discovery is an architecture pattern used for components (micro-services) to locate each other. The DCAE platform uses `server-side discovery `__ and is using `Consul `__ as the service registry solution. Service Registration -------------------- All components are required to register with Consul in order to be discovered. There are two methods of registration: self and 3rd party. The DCAE platform uses 3rd party registration which means components don’t actually make the registration calls but defers that responsibility to a platform service. Implementation for Docker ~~~~~~~~~~~~~~~~~~~~~~~~~ `Registrator `__ is an open source application that is responsible for registering all components that run as Docker containers. Registrator watches the local Docker engine’s activity log and will register and unregister a Docker container when the container is started and stopped. Implementation for CDAP ~~~~~~~~~~~~~~~~~~~~~~~ The CDAP broker is a REST web service that is responsible for registering all components that run as CDAP applications.