spark-instrumented-optimizer/docker/spark-test/master/default_cmd

#!/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
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IP=$(ip -o -4 addr list eth0 | perl -n -e 'if (m{inet\s([\d\.]+)\/\d+\s}xms) { print $1 }')
echo "CONTAINER_IP=$IP"
export SPARK_LOCAL_IP=$IP
export SPARK_PUBLIC_DNS=$IP

# Avoid the default Docker behavior of mapping our IP address to an unreachable host name
umount /etc/hosts

/opt/spark/bin/spark-class org.apache.spark.deploy.master.Master -i $IP