use port to detect running brokers
use port to detect running brokers

saleswise/kafka-docker,b0c1/kafka-docker,wurstmeister/kafka-docker,SUMGlobal/rpi-kafka,DockerKafka/kafka-docker,tagia0212/kafka-docker,nwkeeley/kafka-docker,Banno/kafka-docker,scrapinghub/kafka-docker,geoand/kafka-docker,coffenbacher/kafka-docker,juanantoniofm/kafka-dockerized-cluster,openshine/docker-kafka,cyberphysical/kafka-docker,blademainer/kafka-docker,jdavisonc/kafka-docker,cloudbearings/kafka-docker,mzemel/kafka-docker,varju/kafka-docker