Service registration, discovery and horizontal scalability are key operational requirements of a microservice architecture.Each service needs to replicate. A standard mechanism by which services can easily scale up and down based upon metadata is important. The exact address of a service may not be known until the service is deployed and ready to be used. The dynamic nature of a service’s endpoint address is handled by service registration, discovery and a load balancer. This is all the more important in a containerized world where each container is like a cattle.Docker, Kubernetes, DC/OS and ECS are commonly used container orchestration platforms. They all have built-in support for service discovery and scalability. This talk will explain how this requirement of microservices are met in these orchestration frameworks. Specifically, configuration files for a Java application talking to a database will be shown for different frameworks.