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docker-entrypoint.sh
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docker-entrypoint.sh
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#!/bin/bash
################################################################################
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
################################################################################
JOBMANAGER_HOSTNAME="$2"
function read_env {
for var in `env`
do
if [[ "$var" =~ ^flink_ ]]; then
env_var=`echo "$var" | sed -r "s/(.*)=.*/\1/g"`
flink_property=`echo "$env_var" | tr _ . | sed -e "s/flink.//g"`
if grep -q "$flink_property:" $FLINK_HOME/conf/flink-conf.yaml; then
sed -i '/'"$flink_property"'/c\'"$flink_property"': '"${!env_var}" $FLINK_HOME/conf/flink-conf.yaml
else
echo "$flink_property: ${!env_var}" >> $FLINK_HOME/conf/flink-conf.yaml
fi
fi
done
}
if [ -z "$JOBMANAGER_HOSTNAME" ]; then
# make use of Docker container linking and exploit the jobmanager entry in /etc/hosts
JOBMANAGER_HOSTNAME="jobmanager"
fi
if [ "$1" = "jobmanager" ]; then
export flink_jobmanager_rpc_address=$JOBMANAGER_HOSTNAME
read_env
echo "Starting JobManager"
echo "config file: " && grep '^[^\n#]' $FLINK_HOME/conf/flink-conf.yaml
$FLINK_HOME/bin/jobmanager.sh start cluster
echo "Sleeping 3 seconds, then start to tail the log file"
sleep 3 && tail -c +1 -f `ls $FLINK_HOME/log/*.log | head -n1`
elif [ "$1" = "taskmanager" ]; then
export flink_jobmanager_rpc_address=$JOBMANAGER_HOSTNAME
read_env
echo "Starting TaskManager"
echo "config file: " && grep '^[^\n#]' $FLINK_HOME/conf/flink-conf.yaml
$FLINK_HOME/bin/taskmanager.sh start
echo "Sleeping 3 seconds, then start to tail the log file"
sleep 3 && tail -c +1 -f `ls $FLINK_HOME/log/*.log | head -n1`
elif [ "$1" = "historyserver" ]; then
export flink_jobmanager_rpc_address=$JOBMANAGER_HOSTNAME
read_env
echo "Starting History Server"
echo "config file: " && grep '^[^\n#]' $FLINK_HOME/conf/flink-conf.yaml
$FLINK_HOME/bin/historyserver.sh start
echo "Sleeping 3 seconds, then start to tail the log file"
sleep 3 && tail -c +1 -f `ls $FLINK_HOME/log/*.log | head -n1`
else
$@
fi