ec2-user-data.txt

#!/bin/bash

# This is an EC2 user data script for bringing up an instance with
# Erlang 19.3 and Elixir 1.4.2.
#
# As with any user-data script, its progress can be observed by
# SSHing into the instance and tailing /var/log/cloud-init-output.log
#

# Enable verbose shell logging and abort on any error.
set -e -x -v

# The Erlang compilation will fail without this being set.
# Because this script runs on boot, there is no HOME env var set.
export HOME=/root
export PATH=$PATH:/usr/local/bin

function report_error {
	echo "FINISHED WITH ERROR"
}

function finished {
	if [ $? -eq 0 ]; then
		echo "FINISHED SUCCESSFULLY"
	fi
}

# Trap EXIT and ERR and log appropriate error messages.
trap report_error ERR
trap finished EXIT
 
yum -y update aws-cfn-bootstrap
yum -y install aws-cli

# erlang deps
yum -y groupinstall "Development Tools"
yum -y install ncurses-devel openssl-devel

cd /tmp

# Install Erlang
wget http://www.erlang.org/download/otp_src_19.3.tar.gz
tar -zxvf otp_src_19.3.tar.gz
cd otp_src_19.3/
./configure
make
make install

cd /tmp

# Install Elixir
wget https://github.com/elixir-lang/elixir/archive/v1.4.2.zip
unzip v1.4.2.zip
cd elixir-1.4.2/
make
make install