Istio Manager is the micro-service mesh orchestrator for Istio Proxies and Istio Mixer. It is responsible for dynamically configuring proxies in a cluster platform environment to support L7-based routing, request destination policies (load balancing, circuit breaking), and point-to-point control policies such as fault injection, retries, time-outs.
If you have a question about the Istio Manager or have a problem using it, please file an issue.
Istio Manager design gives an architectural overview of the manager components - cluster platform abstractions, service model, and the proxy controllers.
If you are interested in contributing to the project, please take a look at the build instructions and the testing infrastructure.