$ curl -L $HTTPIP:8080/v2/keys/mykey3 -XPUT -d value="t"
{"message":"proxy: unable to get response from 3 endpoint(s)"}
$ docker start etcd2
etcd2
$ curl -L $HTTPIP:8080/v2/keys/mykey3 -XPUT -d value="t"
{"action":"set","node": {"key":"/mykey3","value":"t","modifiedIndex":16,"createdIndex":16}}
