Consul - Tool for Service Discovery, Monitoring and Configuration

Consul is a tool for service discovery and configuration. Consul is distributed, highly available, and extremely scalable. Consul makes it simple for services to register themselves and to discover other services via a DNS or HTTP interface. Register external services such as SaaS providers as well. It prevents routing requests to unhealthy hosts and enables services to easily provide circuit breakers.

A flexible key/value store enables storing dynamic configuration, feature flagging, coordination, leader election and more. The simple HTTP API makes it easy to use anywhere. It is built to be datacenter aware, and can support any number of regions without complex configuration.