Docker builds zookeeper and kafka

docker run -d --restart=always --name zookeeper -p 2181:2181 -t wurstmeister/zookeeper

docker run -d --name kafka \
-p 9092:9092 \
-e KAFKA_BROKER_ID=0 \
--env KAFKA_HEAP_OPTS=-Xmx256M \
--env KAFKA_HEAP_OPTS=-Xms128M \
-e KAFKA_ZOOKEEPER_CONNECT=172.28.99.11:2181 \
-e KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://47.92.110.110:9092 \
-e KAFKA_LISTENERS=PLAINTEXT://0.0.0.0:9092 \
wurstmeister/kafka:2.13-2.7.0

172.28.99.11 is the intranet IP

47.92.125.10 is the external network IP, register the address port of kafka to zookeeper, if it is local remote access, it should be changed to external network IP , for example, Java program access cannot be connected.

#Enter the container and create a topic

docker exec -it 容器ID /bin/bash

cd /opt/kafka/bin

ls

See which topics are available

./kafka-topics.sh --list --zookeeper 172.28.99.11:2181

 create topic

./kafka-topics.sh --create --zookeeper 172.28.99.11:2181 --replication-factor 1 --partitions 1 --topic test-topic

Create a producer to send messages

./kafka-console-producer.sh --broker-list 172.28.99.11:9092 --topic test-topic

Open another window to run the consumer

docker exec -it public ID /bin/bash

cd /opt/kafka/bin

./kafka-console-consumer.sh --bootstrap-server 172.28.99.11:9092 --from-beginning --topic test-topic

When the producer sends a message, the consumer can receive the message