install elasticsearch, logstash, kibana on one ubuntu instance. This fixes issues with startup script that prevent your services from starting. (courtesy amit, https://rocketreach.co )

install_elk.sh

#!/bin/bash

echo --- Update packages ---
sudo apt -y update
sudo apt -y upgrade
sudo apt-get update
sudo apt-get upgrade

echo --- Install packages ---
#java
sudo apt-get install openjdk-8-jre-headless
java -version

#elasticsearch
wget -qO - https://packages.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add -
echo "deb http://packages.elastic.co/elasticsearch/1.7/debian stable main" | sudo tee -a /etc/apt/sources.list.d/elasticsearch-1.7.list
sudo apt-get install elasticsearch
sudo update-rc.d elasticsearch defaults 95 10

echo -- patch service files --
sudo mkdir -p /var/run/elasticsearch
sudo chown elasticsearch: /var/run/elasticsearch
sudo chown -R elasticsearch: /var/lib/elasticsearch
sudo sed -e 's|^PID_FILE=.*$|PID_FILE=/var/run/$NAME/$NAME.pid|g' -i /etc/init.d/elasticsearch
sudo sed -e 's|^test.*START_DAEMON.*true.*$||g' -i /etc/init.d/elasticsearch
sudo systemctl daemon-reload
sudo service elasticsearch restart
sudo service elasticsearch status

#logstash
echo "deb http://packages.elasticsearch.org/logstash/1.5/debian stable main" | sudo tee -a /etc/apt/sources.list
sudo apt-get update
sudo apt-get install logstash
sudo update-rc.d logstash defaults 97 8
sudo service logstash start

#kibana
wget https://download.elastic.co/kibana/kibana/kibana-4.1.1-linux-x64.tar.gz
tar -xzf kibana-4.1.1-linux-x64.tar.gz
sudo mkdir -p /opt/kibana
sudo mv kibana-4.1.1-linux-x64/* /opt/kibana
cd /etc/init.d && sudo wget https://raw.githubusercontent.com/akabdog/scripts/master/kibana4_init -O kibana4
sudo chmod +x /etc/init.d/kibana4
sudo update-rc.d kibana4 defaults 96 9

sudo sed -e 's|^PID_FILE=.*$|PID_FILE=/var/run/elasticsearch/$NAME.pid|g' -i /etc/init.d/elasticsearch
sudo sed -e 's|^USER=nobody$|USER=elasticsearch|g' -i /etc/init.d/elasticsearch
sudo service kibana4 start