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- #!/bin/bash
- set -eu
- set -o pipefail
- KAFKA_VERSION="${KAFKA_VERSION:-3.6.0}"
- KAFKA_HOME="/opt/kafka-${KAFKA_VERSION}"
- if [ ! -d "${KAFKA_HOME}" ]; then
- echo 'Error: KAFKA_VERSION '$KAFKA_VERSION' not available in this image at '$KAFKA_HOME
- exit 1
- fi
- cd "${KAFKA_HOME}" || exit 1
- # discard all empty/commented lines from default config and copy to /tmp
- sed -e '/^#/d' -e '/^$/d' config/server.properties >/tmp/server.properties
- echo "########################################################################" >>/tmp/server.properties
- # emulate kafka_configure_from_environment_variables from bitnami/bitnami-docker-kafka
- for var in "${!KAFKA_CFG_@}"; do
- key="$(echo "$var" | sed -e 's/^KAFKA_CFG_//g' -e 's/_/\./g' -e 's/.*/\L&/')"
- sed -e '/^'$key'/d' -i"" /tmp/server.properties
- value="${!var}"
- echo "$key=$value" >>/tmp/server.properties
- done
- sort /tmp/server.properties
- exec bin/kafka-server-start.sh /tmp/server.properties
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