0-readme.md

Amazon AWS EC2 production for Ruby on Rails

Prepare cloud

Speed up ssh login

echo 'UseDNS no # if slow connection' >> /etc/ssh/sshd_config
echo 'PrintMotd yes # if you need motd messages' >> /etc/ssh/sshd_config

From /etc/pam.d/login && /etc/pam.d/sshd delete all strings included

session optional pam_motd.so

Remove components of paid monitoring

sudo apt-get remove landscape-client landscape-common
sudo apt-get autoremove

Installation

Prepare ubuntu

Update fresh installed cloud

sudo apt-get update && sudo apt-get upgrade

Install utilities

sudo apt-get install mc htop curl git-core localepurge

Install devtools

sudo apt-get install build-essential bison openssl libreadline6 libreadline6-dev zlib1g zlib1g-dev libssl-dev libyaml-dev libxml2-dev libxslt-dev autoconf libc6-dev ncurses-dev

Install postgresql

sudo add-apt-repository ppa:pitti/postgresql && sudo apt-get update
sudo apt-get install postgresql-9.2 postgresql-client-9.2 postgresql-contrib-9.2 postgresql-server-dev-9.2

Check pg port. It must be 5432

sudo netstat -lp | grep postgresql

Connect to pg via psql

sudo su postgres -c psql

Create a new user

create user username with password 'password';

Grant privelegies for it.

alter user username superuser;

Install alternative malloc. Ruby works on 8-10% faster.

sudo apt-get install libtcmalloc-minimal0
echo 'export LD_PRELOAD=/usr/lib/libtcmalloc_minimal.so.0.1.0' >> ~/.bash_profile
source ~/.bash_profile

Install ruby env

Install rvm & ruby & rails

bash -s < <(curl -s https://raw.github.com/gist/4598302/install-rvm.sh)

Install web-server

Install nginx

sudo apt-get install nginx

Create dir for projects

sudo mkdir -p /srv/ror
sudo chown -R ubuntu:ubuntu /srv/ror/

install-rvm.sh

#!/bin/bash
echo 'Installing RVM'
bash -s stable < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer)
echo '# Ruby tuning' >> ~/.bash_profile
echo 'export RUBY_HEAP_MIN_SLOTS=1000000' >> ~/.bash_profile
echo 'export RUBY_HEAP_SLOTS_INCREMENT=1000000' >> ~/.bash_profile
echo 'export RUBY_HEAP_SLOTS_GROWTH_FACTOR=1' >> ~/.bash_profile
echo 'export RUBY_GC_MALLOC_LIMIT=1000000000' >> ~/.bash_profile
echo 'export RUBY_HEAP_FREE_MIN=500000' >> ~/.bash_profile
source ~/.bash_profile
echo 'Installing ruby-2.0.0-p247'
rvm get head 
rvm install ruby-2.0.0-p247
rvm use ruby-2.0.0-p247 --default
rvm use ruby-2.0.0-p247@global
echo 'Installing rails'
gem install rails --no-rdoc --no-ri
echo 'Installing bundler'
gem install bundler --no-rdoc --no-ri
echo 'Creating ~/.gemrc'
echo "install: --no-rdoc --no-ri" >> ~/.gemrc
echo "update: --no-rdoc --no-ri" >> ~/.gemrc

unicorn-init.sh

#!/bin/bash
### BEGIN INIT INFO
# Provides:          APPLICATION
# Required-Start:    $all
# Required-Stop:     $network $local_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start the APPLICATION unicorns at boot
# Description:       Enable APPLICATION at boot time.
### END INIT INFO
# 
# Use this as a basis for your own Unicorn init script.
# Change APPLICATION to match your app.
# Make sure that all paths are correct.
 
set -u
set -e
 
# Change these to match your app:
APP_NAME="TrackerScorer"
APP_ROOT="/srv/ror/$APP_NAME/current"
PID="/srv/ror/$APP_NAME/shared/pids/unicorn.pid"
ENV=production
 
GEM_HOME="/usr/local/rvm/gems/ruby-2.0.0-p247"
 
UNICORN_OPTS="-D -E $ENV -c $APP_ROOT/config/unicorn.rb"
 
SET_PATH="cd $APP_ROOT; rvm use ruby-2.0.0-p247@global; export GEM_HOME=$GEM_HOME"
CMD="$SET_PATH; bundle exec unicorn $UNICORN_OPTS"
 
old_pid="$PID.oldbin"
 
cd $APP_ROOT || exit 1
 
sig () {
  test -s "$PID" && kill -$1 `cat $PID`
}
 
oldsig () {
	test -s $old_pid && kill -$1 `cat $old_pid`
}
 
case ${1-help} in
start)
	sig 0 && echo >&2 "Already running" && exit 0
	su - unicorn -c "$CMD"
	;;
stop)
	sig QUIT && exit 0
	echo >&2 "Not running"
	;;
force-stop)
	sig TERM && exit 0
	echo >&2 "Not running"
	;;
restart|reload)
	sig HUP && echo reloaded OK && exit 0
	echo >&2 "Couldn't reload, starting '$CMD' instead"
	su - unicorn -c "$CMD"
	;;
upgrade)
	sig USR2 && exit 0
	echo >&2 "Couldn't upgrade, starting '$CMD' instead"
	su - unicorn -c "$CMD"
	;;
rotate)
	sig USR1 && echo rotated logs OK && exit 0
	echo >&2 "Couldn't rotate logs" && exit 1
	;;
*)
 	echo >&2 "Usage: $0 <start|stop|restart|upgrade|rotate|force-stop>"
 	exit 1
 	;;
esac