# check the current configuration (8001 is the admin port)
$ curl 172.17.42.1:8001 -s
{}

# set a new configuration for the root path "/" (all requests): forward all requests to elasticsearch
$ curl -X POST -d '{"address": "https://172.17.42.1:9200", "path": "/"}' -s 172.17.42.1:8001
{"address":"https://172.17.42.1:9200","path":"/"}

# check the current configuration
$ curl 172.17.42.1:8001 -s
{"/":{"address":"https://172.17.42.1:9200","path":"/"}}

# test the configuration (8000 is the proxy port)
$ curl 127.0.0.1:8000
{
  "status" : 200,
  "name" : "Fin",
  "cluster_name" : "elasticsearch",
  "version" : {
	"number" : "1.5.2",
	"build_hash" : "62ff9868b4c8a0c45860bebb259e21980778ab1c",
	"build_timestamp" : "2015-04-27T09:21:06Z",
	"build_snapshot" : false,
	"lucene_version" : "4.10.4"
  },
  "tagline" : "You Know, for Search"
}