Simple Mesos Cluster

run-mesos-cluster.sh

#! /usr/bin/env bash

HOST_IP_1="10.0.10.10"
HOST_IP_2="10.0.20.10"
HOST_IP_3="10.0.30.10"

###### DO NOT TOUCH BELOW HERE ########

SCRIPT=`basename "$0"`

if [ $# -eq 0 ]; then

  # Attempt automatic identification of host by comparing the host's IP's to the expected list above.

  ips=( $(ifconfig | awk '/inet/ {print $2}') )

  for ip in "${ips[@]}"; do
    if [ $HOST_IP_1 == $ip ]; then
      MY_ID=1
      echo "Automatically determined this host as HOSTID:$MY_ID ($HOST_IP_1), configuring as such."
    elif [ $HOST_IP_2 == $ip ]; then
      MY_ID=2
      echo "Automatically determined this host as HOSTID:$MY_ID ($HOST_IP_2), configuring as such."
    elif [ $HOST_IP_3 == $ip ]; then
      MY_ID=3
      echo "Automatically determined this host as HOSTID:$MY_ID ($HOST_IP_3), configuring as such."
    fi
  done

  if [ -z $MY_ID ]; then
    echo "NOTE: We attempted automatic provisioning and failed. This means that you do not have an ip on this machine that matches one of the requested configs."
    echo "If you continue, things will probably break."
    echo ""
    echo "If you wish to continue anyways, please provide a single number as an argument indicating which server is being bootstrapped."
    echo "Example Usage:"
    echo " -> './$SCRIPT 1' would provision $HOST_IP_1."
    exit 1
  fi
fi

if [ -z $MY_ID ]; then
  MY_ID=$1
fi

prebuild="HOST_IP_${MY_ID}"
SELECTED="${!prebuild}"

echo "SELECTED: "
echo $SELECTED

# START ZOOKEEPER
docker run -d \
 --net="host" \
 -e SERVER_ID=$MY_ID \
 -e ADDITIONAL_ZOOKEEPER_1=server.1=${HOST_IP_1}:2888:3888 \
 -e ADDITIONAL_ZOOKEEPER_2=server.2=${HOST_IP_2}:2888:3888 \
 -e ADDITIONAL_ZOOKEEPER_3=server.3=${HOST_IP_3}:2888:3888 \
 --name zookeeper-$MY_ID \
 garland/zookeeper

if [ $? -ne 0 ]; then
  echo "Zookeeper could not start successfully."
  exit 1
fi

# START MESOS
docker run --net="host" \
  -p 5050:5050 \
  -e "MESOS_HOSTNAME=`hostname`" \
  -e "MESOS_IP=${SELECTED}" \
  -e "MESOS_ZK=zk://${HOST_IP_1}:2181,${HOST_IP_2}:2181/mesos,${HOST_IP_3}:2181/mesos" \
  -e "MESOS_PORT=5050" \
  -e "MESOS_LOG_DIR=/var/log/mesos" \
  -e "MESOS_QUORUM=1" \
  -e "MESOS_REGISTRY=in_memory" \
  -e "MESOS_WORK_DIR=/var/lib/mesos" \
  -e "LIBPROCESS_IP=${SELECTED}" \
  -d \
  --name mesos-master \
  garland/mesosphere-docker-mesos-master

if [ $? -ne 0 ]; then
  echo "Mesos could not start successfully."
  exit 1
fi

# START MARATHON

docker run \
 -d \
 -p 8080:8080 \
 --name marathon \
 garland/mesosphere-docker-marathon --master zk://${HOST_IP_1}:2181,${HOST_IP_2}:2181/mesos,${HOST_IP_3}:2181/mesos --zk zk://${HOST_IP_1}:2181,${HOST_IP_2}:2181/marathon,${HOST_IP_3}:2181/marathon

if [ $? -ne 0 ]; then
  echo "Marathon could not start successfully."
  exit 1
fi

 echo "Mesos Master Bootstrapped!"