Docker环境 运行Kafka容器失败

网上docker 安装kafka环境教程大多数会采用下面命令

docker run  -d --name kafka -p 9092:9092 \
-e KAFKA_BROKER_ID=0-e KAFKA_ZOOKEEPER_CONNECT=192.xxx.xxx.xxx:2181 \
-e KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://192.xxx.xxx.xxx:9092-e \
KAFKA_LISTENERS=PLAINTEXT://0.0.0.0:9092-t bitnami/kafka:2.7.0

• –name=“容器新名字” 为容器指定一个名称；
• -d: 后台运行容器并返回容器ID，也即启动守护式容器(后台运行)；
• -p: 指定端口映射，小写p

启动kafka容器时发现容器并没有正常启动，通过查看日志发现提示：

• 查看日志命令

docker logs kafka

• 日志错误提示

INFO  ==>**StartingKafka setup **15:04:41.47 ERROR ==>The KAFKA_CFG_LISTENERS environment variable does not configure a secure listener. Set the environment variable ALLOW_PLAINTEXT_LISTENER=yes toallow the container tobe started witha plaintext listener. This is only recommended for development.15:04:41.48 ERROR ==>The KAFKA_ZOOKEEPER_PROTOCOL environment variable does not configure a secure protocol. Set the environment variable ALLOW_PLAINTEXT_LISTENER=yes toallow the container tobe started witha plaintext listener. This is only recommended for development.

这是因为在启动容器时没有指定环境变量ALLOW_PLAINTEXT_LISTENER 允许使用PLAINTEXT侦听器。

启动命令时加上指定环境变量

-e ALLOW_PLAINTEXT_LISTENER=yes

docker run  -d --name kafka -p 9092:9092 \
-e KAFKA_BROKER_ID=0 -e KAFKA_ZOOKEEPER_CONNECT=192.xxx.xxx.xxx:2181 \
-e ALLOW_PLAINTEXT_LISTENER=yes \
-e KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://192.xxx.xxx.xxx:9092 -e \KAFKA_LISTENERS=PLAINTEXT://0.0.0.0:9092 -t bitnami/kafka:2.7.0

成功: