Dockerfile

FROM openjdk:11-jre-slim

ARG kafka_version=2.8.1
ARG scala_version=2.13
ARG vcs_ref=unspecified
ARG build_date=unspecified

LABEL org.label-schema.name="kafka" \
      org.label-schema.description="Apache Kafka" \
      org.label-schema.build-date="${build_date}" \
      org.label-schema.vcs-url="https://github.com/wurstmeister/kafka-docker" \
      org.label-schema.vcs-ref="${vcs_ref}" \
      org.label-schema.version="${scala_version}_${kafka_version}" \
      org.label-schema.schema-version="1.0" \
      maintainer="wurstmeister"

ENV KAFKA_VERSION=$kafka_version \
    SCALA_VERSION=$scala_version \
    KAFKA_HOME=/opt/kafka

ENV PATH=${PATH}:${KAFKA_HOME}/bin

COPY download-kafka.sh start-kafka.sh broker-list.sh create-topics.sh versions.sh /tmp2/

RUN set -eux ; \
    apt-get update ; \
    apt-get upgrade -y ; \
    apt-get install -y --no-install-recommends jq net-tools curl wget ; \
### BEGIN docker for CI tests
    apt-get install -y --no-install-recommends gnupg lsb-release ; \
	curl -fsSL https://download.docker.com/linux/debian/gpg | gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg ; \
	echo \
  		"deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/debian \
  		$(lsb_release -cs) stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null ; \
    apt-get update ; \
    apt-get install -y --no-install-recommends docker-ce-cli ; \
    apt remove -y gnupg lsb-release ; \
    apt clean ; \
    apt autoremove -y ; \
    apt -f install ; \
### END docker for CI tests
### BEGIN other for CI tests
    apt-get install -y --no-install-recommends netcat ; \
### END other for CI tests
    chmod a+x /tmp2/*.sh ; \
    mv /tmp2/start-kafka.sh /tmp2/broker-list.sh /tmp2/create-topics.sh /tmp2/versions.sh /usr/bin ; \
    sync ; \
    /tmp2/download-kafka.sh ; \
    tar xfz /tmp2/kafka_${SCALA_VERSION}-${KAFKA_VERSION}.tgz -C /opt ; \
    rm /tmp2/kafka_${SCALA_VERSION}-${KAFKA_VERSION}.tgz ; \
    ln -s /opt/kafka_${SCALA_VERSION}-${KAFKA_VERSION} ${KAFKA_HOME} ; \
    rm -rf /tmp2 ; \
    rm -rf /var/lib/apt/lists/*

COPY overrides /opt/overrides

VOLUME ["/kafka"]

# Use "exec" form so that it runs as PID 1 (useful for graceful shutdown)
CMD ["start-kafka.sh"]