• 创建topic
  bin/kafka-topics.sh —create —topic lcg —partitions 1 —replication-factor 1 —bootstrap-server service-kafka-medusa-entry:9092
  
• bin/kafka-topics.sh —describe —bootstrap-server service-kafka-medusa-entry:9092
  
• bin/kafka-topics.sh —describe —topic lcg —bootstrap-server service-kafka-medusa-entry:9092 查看单个topic的情况
  
• bin/kafka-topics.sh —list —bootstrap-server service-kafka-medusa-entry:9092
  
• bin/kafka-console-producer.sh —topic lcg —broker-list service-kafka-medusa-entry:9092 发送消息
  
• bin/kafka-console-consumer.sh —topic lcg —from-beginning —bootstrap-server service-kafka-medusa-entry:9092 消费消息
  
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