#!/usr/bin/env bash
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# Start a Flink TaskManager for native Kubernetes.
# NOTE: This script is not meant to be started manually. It will be used by native Kubernetes integration.

USAGE="Usage: kubernetes-taskmanager.sh [args]"

ENTRYPOINT=kubernetes-taskmanager

ARGS=("${@:1}")

bin=`dirname "$0"`
bin=`cd "$bin"; pwd`

. "$bin"/config.sh

# if no other JVM options are set, set the GC to G1
if [ -z "${FLINK_ENV_JAVA_OPTS}" ] && [ -z "${FLINK_ENV_JAVA_OPTS_TM}" ]; then
    export JVM_ARGS="$JVM_ARGS -XX:+UseG1GC"
fi

# Add TaskManager specific JVM options
export FLINK_ENV_JAVA_OPTS="${FLINK_ENV_JAVA_OPTS} ${FLINK_ENV_JAVA_OPTS_TM}"
export JVM_ARGS="$JVM_ARGS $FLINK_TM_JVM_MEM_OPTS"

ARGS=("--configDir" "${FLINK_CONF_DIR}" "${ARGS[@]}")

exec "${FLINK_BIN_DIR}"/flink-console.sh $ENTRYPOINT "${ARGS[@]}"