fix: change advertised listeners

Signed-off-by: yasin <yasin.lachiny@gmail.com>

Author: yasinlachiny

README.md

@@ -72,6 +72,7 @@ If you want to have three brokers and experiment with kafka replication / fault-
 
 Run with:
 ```
+export DOCKER_HOST_IP="DOCKER HOST IP"
 docker-compose -f zk-single-kafka-multiple.yml up
 docker-compose -f zk-single-kafka-multiple.yml down
 ```
@@ -100,6 +101,7 @@ If you want to have three zookeeper nodes and three kafka brokers to experiment
 
 Run with:
 ```
+export DOCKER_HOST_IP="DOCKER HOST IP"
 docker-compose -f zk-multiple-kafka-multiple.yml up
 docker-compose -f zk-multiple-kafka-multiple.yml down
 ```

zk-multiple-kafka-multiple.yml

@@ -43,7 +43,7 @@ services:
     ports:
       - "9092:9092"
     environment:
-      KAFKA_ADVERTISED_LISTENERS: LISTENER_DOCKER_INTERNAL://kafka1:19092,LISTENER_DOCKER_EXTERNAL://${DOCKER_HOST_IP:-127.0.0.1}:9092
+      KAFKA_ADVERTISED_LISTENERS: LISTENER_DOCKER_INTERNAL://kafka1:19092,LISTENER_DOCKER_EXTERNAL://${DOCKER_HOST_IP}:9092
       KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: LISTENER_DOCKER_INTERNAL:PLAINTEXT,LISTENER_DOCKER_EXTERNAL:PLAINTEXT
       KAFKA_INTER_BROKER_LISTENER_NAME: LISTENER_DOCKER_INTERNAL
       KAFKA_ZOOKEEPER_CONNECT: "zoo1:2181,zoo2:2182,zoo3:2183"
@@ -63,7 +63,7 @@ services:
     ports:
       - "9093:9093"
     environment:
-      KAFKA_ADVERTISED_LISTENERS: LISTENER_DOCKER_INTERNAL://kafka2:19093,LISTENER_DOCKER_EXTERNAL://${DOCKER_HOST_IP:-127.0.0.1}:9093
+      KAFKA_ADVERTISED_LISTENERS: LISTENER_DOCKER_INTERNAL://kafka2:19093,LISTENER_DOCKER_EXTERNAL://${DOCKER_HOST_IP}:9093
       KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: LISTENER_DOCKER_INTERNAL:PLAINTEXT,LISTENER_DOCKER_EXTERNAL:PLAINTEXT
       KAFKA_INTER_BROKER_LISTENER_NAME: LISTENER_DOCKER_INTERNAL
       KAFKA_ZOOKEEPER_CONNECT: "zoo1:2181,zoo2:2182,zoo3:2183"
@@ -83,7 +83,7 @@ services:
     ports:
       - "9094:9094"
     environment:
-      KAFKA_ADVERTISED_LISTENERS: LISTENER_DOCKER_INTERNAL://kafka3:19094,LISTENER_DOCKER_EXTERNAL://${DOCKER_HOST_IP:-127.0.0.1}:9094
+      KAFKA_ADVERTISED_LISTENERS: LISTENER_DOCKER_INTERNAL://kafka3:19094,LISTENER_DOCKER_EXTERNAL://${DOCKER_HOST_IP}:9094
       KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: LISTENER_DOCKER_INTERNAL:PLAINTEXT,LISTENER_DOCKER_EXTERNAL:PLAINTEXT
       KAFKA_INTER_BROKER_LISTENER_NAME: LISTENER_DOCKER_INTERNAL
       KAFKA_ZOOKEEPER_CONNECT: "zoo1:2181,zoo2:2182,zoo3:2183"

zk-single-kafka-multiple.yml

@@ -20,7 +20,7 @@ services:
     ports:
       - "9092:9092"
     environment:
-      KAFKA_ADVERTISED_LISTENERS: LISTENER_DOCKER_INTERNAL://kafka1:19092,LISTENER_DOCKER_EXTERNAL://${DOCKER_HOST_IP:-127.0.0.1}:9092
+      KAFKA_ADVERTISED_LISTENERS: LISTENER_DOCKER_INTERNAL://kafka1:19092,LISTENER_DOCKER_EXTERNAL://${DOCKER_HOST_IP}:9092
       KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: LISTENER_DOCKER_INTERNAL:PLAINTEXT,LISTENER_DOCKER_EXTERNAL:PLAINTEXT
       KAFKA_INTER_BROKER_LISTENER_NAME: LISTENER_DOCKER_INTERNAL
       KAFKA_ZOOKEEPER_CONNECT: "zoo1:2181"
@@ -38,7 +38,7 @@ services:
     ports:
       - "9093:9093"
     environment:
-      KAFKA_ADVERTISED_LISTENERS: LISTENER_DOCKER_INTERNAL://kafka2:19093,LISTENER_DOCKER_EXTERNAL://${DOCKER_HOST_IP:-127.0.0.1}:9093
+      KAFKA_ADVERTISED_LISTENERS: LISTENER_DOCKER_INTERNAL://kafka2:19093,LISTENER_DOCKER_EXTERNAL://${DOCKER_HOST_IP}:9093
       KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: LISTENER_DOCKER_INTERNAL:PLAINTEXT,LISTENER_DOCKER_EXTERNAL:PLAINTEXT
       KAFKA_INTER_BROKER_LISTENER_NAME: LISTENER_DOCKER_INTERNAL
       KAFKA_ZOOKEEPER_CONNECT: "zoo1:2181"
@@ -57,7 +57,7 @@ services:
     ports:
       - "9094:9094"
     environment:
-      KAFKA_ADVERTISED_LISTENERS: LISTENER_DOCKER_INTERNAL://kafka3:19094,LISTENER_DOCKER_EXTERNAL://${DOCKER_HOST_IP:-127.0.0.1}:9094
+      KAFKA_ADVERTISED_LISTENERS: LISTENER_DOCKER_INTERNAL://kafka3:19094,LISTENER_DOCKER_EXTERNAL://${DOCKER_HOST_IP}:9094
       KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: LISTENER_DOCKER_INTERNAL:PLAINTEXT,LISTENER_DOCKER_EXTERNAL:PLAINTEXT
       KAFKA_INTER_BROKER_LISTENER_NAME: LISTENER_DOCKER_INTERNAL
       KAFKA_ZOOKEEPER_CONNECT: "zoo1:2181"