ARG BASE FROM $BASE RUN wget https://dl.wodcloud.com/lyl/kafka_2.12-3.2.0.tar /opt/ && tar xf /opt/kafka_2.12-3.2.0.tar WORKDIR /opt/kafka_2.12-3.2.0/bin CMD exec /opt/kafka_2.12-3.2.0/bin/kafka-server-start.sh /opt/kafka_2.12-3.2.0/config/server.properties