Dockerfiles/kafka/2.1.1/start_kafka.sh

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#!/bin/bash
: ${EXTRA_CONF_DIR:=/config/kafka}
## Overide default configuration files
if [ -d "$EXTRA_CONF_DIR" ]; then
cp $EXTRA_CONF_DIR/* /usr/local/kafka/config
fi
if ! [[ -z "${BROKER_ID}" ]]; then
sed -i '/broker.id=/d' /usr/local/kafka/config/server.properties
echo -e "\nbroker.id=$BROKER_ID" >> /usr/local/kafka/config/server.properties
fi
if ! [[ -z "${ZOOKEEPER_CONNECT}" ]]; then
sed -i '/zookeeper.connect=/d' /usr/local/kafka/config/server.properties
echo -e "\nzookeeper.connect=$ZOOKEEPER_CONNECT" >> /usr/local/kafka/config/server.properties
fi
bash /usr/local/kafka/bin/kafka-server-start.sh /usr/local/kafka/config/server.properties