Fabio is an HTTP and TCP reverse proxy
Configures itself with data from Consul.
Traditional load balancers and reverse proxies need to be configured with a config file. The configuration contains the hostnames and paths the proxy is forwarding to upstream services. This process can be automated with tools like consul-template that generate config files and trigger a reload.
Fabio works differently since it updates its routing table directly from the data stored in Consul as soon as there is a change and without restart or reloading.