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Introduction

Prana is a Karyon & RxNetty based application that exposes features of java based client libraries of various NetflixOSS services over an HTTP API.

As a sidecar application, Prana is conceptually “attached” to the main application and complements it by providing features that are otherwise available as libraries within a JVM-based application.

We use Prana extensively within Netflix alongside applications built in non-jvm programming language like Python and NodeJS or services like Memcached, Spark, and Hadoop.

Features

• Advertising applications via the Eureka Service Discovery Service
• Discovery of hosts of an application via Eureka
• Health Check of services
• Load Balancing http requests via Ribbon
• Fetching Dynamic Properties via Archaius

Road Map

• Ability to extend the http api by adding custom RxNetty request handler via Groovy scripts. More Details
• Add support for command based Health Check handlers
• Consideration of moving external configuration support from Prana down into Karyon 2.0 base.