docker-compose ps
docker-compose up producer
-docker-compose exec cli kafkacat -b kafka:9092 -t test -e -f'topic=%t\tpartition=%p\toffset=%o\tkey=%k\tvalue=%s\n'
+# tag::kafkacat[]
+kafkacat -b :9092 -t test -e -f'topic=%t\tpartition=%p\toffset=%o\tkey=%k\tvalue=%s\n'
+# end::kafkacat[]