tobernguyen

Ruby on Rails Deployment on DigitalOcean

Prequisites

• HTTP server nginx
• Rails web server passenger
• Database PosgreSQL
• Deployment utility mina

Step 1 - Create your droplet

breim

### ssh to root in terminal with your server ip
ssh root@123.123.123.123

### Create new user
adduser deploy

### Set new users privileges
visudo

### Find user privileges section

nicolas-besnard

#!/usr/bin/env bash

install_elasticsearch() {
  echo "  *  -- Elasticsaerch -- *"
  echo "    * Update"
  sudo apt-get -qq -y update
  echo "    * Install JDK"
  sudo apt-get -qq -y install openjdk-7-jre-headless
   
  echo "    * Download deb (V1.4.2)"

scarfacedeb

/ Form excerpt
= f.button t(".save"), class: "btn"
= f.button t(".publish"), class: "btn", name: "publish"
= f.button t(".test"), class: "btn", name: "test"

seancdavis

# app/models/image.rb

class Image < ActiveRecord::Base
  has_many :taggings, :as => :taggable
  has_many :tags, :through => :taggings
end

dfurber

There are 4 parts:

1. the html partial which goes into your layout
2. the scss block to add to your stylesheet
3. the coffeescript to add to your application.coffee
4. the image. The image is not included here, but go here and "Save image": http://aragats.herokuapp.com/assets/ajax-loader.gif - or go here http://www.ajaxload.info/ and generate your own loader image.

hopsoft

# lib/tasks/db.rake
namespace :db do

  desc "Dumps the database to db/APP_NAME.dump"
  task :dump => :environment do
    cmd = nil
    with_config do |app, host, db, user|
      cmd = "pg_dump --host #{host} --username #{user} --verbose --clean --no-owner --no-acl --format=c #{db} > #{Rails.root}/db/#{app}.dump"
    end
    puts cmd

denji

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

madwork

class Attachment < ActiveRecord::Base
  mount_uploader :attachment, AttachmentUploader

  # Associations

  belongs_to :attached_item, polymorphic: true

  # Validations

  validates_presence_of :attachment

johndagostino

gem('mysql2')
gem('compass')
gem('zurb-foundation')
gem('puma')
gem('dalli')
gem('omniauth')
gem('omniauth-twitter')
gem('health_check')
gem('kaminari')
gem('newrelic_rpm')