FROM confluentinc/cp-kafka:5.1.2
RUN mkdir /tmp/log4j && \
    cd /tmp/log4j && \
    jar -xvf /usr/share/java/kafka/log4j-1.2.17.jar && \
    rm -r /tmp/log4j/org/apache/log4j/chainsaw && \
    rm /tmp/log4j/org/apache/log4j/jdbc/JDBCAppender.class && \
    rm /tmp/log4j/org/apache/log4j/net/JMSSink.class && \
    rm /tmp/log4j/org/apache/log4j/net/JMSAppender.class && \
    jar -cvf /tmp/log4j-1.2.17.jar ./ && \
    cp /tmp/log4j-1.2.17.jar /usr/share/java/kafka/log4j-1.2.17.jar