mikhailov

#!/bin/sh

ip route |grep default # default via 10.235.9.1 dev eth0
ip route change default via `ip route| awk '/^def/{print $3}'` dev eth0 initcwnd 16
ip route |grep default # default via 10.235.9.1 dev eth0 initcwnd 16

sysctl -w net.ipv4.tcp_slow_start_after_idle=0
sysctl -a |grep net.ipv4.tcp_slow_start_after_idle

mikhailov

# standard capistrano config goes here....
# Put the maintenance screen if DB migrations take in place only

before "deploy",                 "deploy:delayed_job:stop"
before "deploy:migrations",      "deploy:delayed_job:stop"

after  "deploy:update_code",     "deploy:symlink_shared", "deploy:assets_compress"
before "deploy:migrate",         "deploy:web:disable",    "deploy:db:backup"

after  "deploy",                 "newrelic:notice_deployment", "deploy:cleanup", "deploy:delayed_job:restart"

mikhailov

# Nginx can serve FLV/MP4 files by pseudo-streaming way without any specific media-server software. 
# To do the custom build we use 2 modules: --with-http_secure_link_module --with-http_flv_module
# This module "secure-link" helps you to protect links from stealing away.
#
# NOTE: see more details at coderwall: http://coderwall.com/p/3hksyg

cd /usr/src
wget http://nginx.org/download/nginx-1.5.13.tar.gz
tar xzvf ./nginx-1.5.13.tar.gz && rm -f ./nginx-1.5.13.tar.gz

mikhailov

# Nginx+Unicorn best-practices congifuration guide. Heartbleed fixed.
# We use latest stable nginx with fresh **openssl**, **zlib** and **pcre** dependencies.
# Some extra handy modules to use: --with-http_stub_status_module --with-http_gzip_static_module
#
# Deployment structure
#
# SERVER:
#  /etc/init.d/nginx                             (1. nginx)
#  /home/app/public_html/app_production/current  (Capistrano directory)
#

mikhailov

class ActiveRecord::ConnectionAdapters::Mysql2Adapter

private
  alias_method :configure_connection_without_strict_mode, :configure_connection

  def configure_connection
    configure_connection_without_strict_mode
    strict_mode = "SQL_MODE='STRICT_ALL_TABLES'"
    execute("SET #{strict_mode}", :skip_logging)
  end

mikhailov

namespace :log do

  desc "A pinch of tail"
  task :tailf, :roles => :app do
    run "tail -n 10000 -f #{shared_path}/log/#{rails_env}.log" do |channel, stream, data|
      puts "#{data}"
      break if stream == :err
    end
  end

mikhailov

- http://www.coffeepowered.net/2009/06/13/fine-tuning-your-garbage-collector/
- http://snaprails.tumblr.com/post/241746095/rubys-gc-configuration

  article’s settings:                                     ("spec spec" took 17-23!sec)
	export RUBY_HEAP_MIN_SLOTS=1250000
	export RUBY_HEAP_SLOTS_INCREMENT=100000
	export RUBY_HEAP_SLOTS_GROWTH_FACTOR=1
	export RUBY_GC_MALLOC_LIMIT=30000000
	export RUBY_HEAP_FREE_MIN=12500

mikhailov

# NOTICE: to get Nginx+Unicorn best-practices configuration see the gist https://gist.github.com/3052776

  $ cd /usr/src
  $ wget http://nginx.org/download/nginx-1.2.1.tar.gz
  $ tar xzvf ./nginx-1.2.1.tar.gz && rm -f ./nginx-1.2.1.tar.gz

  $ wget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.30.tar.gz
  $ tar xzvf pcre-8.30.tar.gz && rm -f ./pcre-8.30.tar.gz

  $ wget http://www.openssl.org/source/openssl-1.0.1c.tar.gz

mikhailov

server {
    listen       80;
    server_name  *.domain.com;
    rewrite ^(.*) https://$host$1 permanent;
}

mikhailov

  var spinner = $('#ajax-spinner');
  $(document).ajaxSend(function() {
    $('input[type=submit]').attr('disabled', 'disabled');
    $('#warningBox').hide();
    spinner.show()
  }).ajaxStop(function() {
    $('input[type=submit]').removeAttr('disabled');
    spinner.hide()
  });