network reachability when using confluent images.

[aartigupta]

Can we add environment variables exposing zookeeper and kafka host ip or other solutions to network reachability when using confluent images.

I am using the following

docker run -d --name zookeeper -p 127.0.0.1:2181:2181 --hostname zookeeper confluent/zookeeper

 docker run -d --name kafka --hostname kafka -p 127.0.0.1:9092:9092 --link zookeeper:zookeeper \
     --env KAFKA_LOG_CLEANUP_POLICY=compact confluent/kafka

Then use a the Sarama go client (using 127.0.0.1, 2181 and 9092 for zookeeper and kafka), in a docker container and get the following error

2015/08/12 01:34:27 subscription.go:113: creating consumer:
2015/08/12 01:36:20 server.go:1775: http: panic serving 127.0.0.1:55194: kafka: client has run out of available brokers to talk to (Is your cluster reachable?)
goroutine 12 [running]:
net/http.func·011()
    /usr/src/go/src/net/http/server.go:1130 +0xbb

Can we introduce a KAFKA_ADVERTISED_HOST_NAME:, KAFKA_ADVERTISED_PORT: and similar for zookeeper.

These are what my mappings look like

macbook:src aartikumargupta$ docker ps
CONTAINER ID        IMAGE                 COMMAND                CREATED             STATUS              PORTS                                          NAMES
01cb90eb8abf        019547acd204          "/bin/sh -c /program   21 hours ago        Up About an hour    8080/tcp                                       prickly_stallman1   
70b61fb70de9        confluent/kafka       "/bin/sh -c /kafka-d   21 hours ago        Up About an hour    127.0.0.1:9092->9092/tcp                       kafka               
4e5ff816657f        confluent/zookeeper   "/usr/local/bin/zk-d   21 hours ago        Up About an hour    2888/tcp, 127.0.0.1:2181->2181/tcp, 3888/tcp   zookeeper