stevenyap

This guide explains the way to setup a production server using Capistrano.

Setup Capistrano on LOCAL

• Capistrano is a development gem which assist the developer to run commands on the production server (something like a Heroku toolbelt)
• Hence, it is installed and configured on developer's computer

# Gemfile

# Use Capistrano for deployment

speric

Chapter 1 - Object Oriented Design

The purpose of design is to allow you to do design later, and it's primary goal is to reduce the cost of change.

SOLID Design:

• Single Responsibility Principle: a class should have only a single responsibility
• Open-Closed Principle: Software entities should be open for extension, but closed for modification (inherit instead of modifying existing classes).
• Liskov Substitution: Objects in a program should be replaceable with instances of their subtypes without altering the correctness of that program.
• Interface Segregation: Many client-specific interfaces are better than one general-purpose interface.

iqbalhasnan

#config/initializers/carrierwave.rb
module CarrierWave
  module MiniMagick
		# Rotates the image based on the EXIF Orientation
    def exif_rotation
      manipulate! do |img|
        img.auto_orient
        img = yield(img) if block_given?
        img
      end

zettamax

#Деградация функциональности http://joxi.ru/DxXOU4wyTJCzLlQsA7o Есть фичи у проекта - есть критичные вещи, есть такие что можно пожертвовать чем-то При проектировании архитектуры нужно учесть возможные фоллбеки Все доп, фичи можно отключить или не использовать в ситуации крайней нагрузки

#Масштабирование Нагрузка растет нужно мастабироваться

charger

#для работы этого кода нужно установить гем 'savon'
#для этого выполните: gem install savon
#или пропишите в Gemfile: gem 'savon'

class TurboSMS
  LOGIN = '...' # не забудьте активировать SOAP шлюз в личном кабинете и создать логин/пароль
  PASSWORD = '...'
  SENDER = 'MySite' #не забудьте добавить эту подпись в личном кабинете
  
  def get_balance

afilhodaniel

class InstagramPrivateController < ApplicationController

  def initialize(username, password, photo, caption)
    @username = username
    @password = password
    @photo = photo
    @caption = caption

    @cookiepath = Tempfile.new('cookies').path
    @user_agent = generate_user_agent()

ostinelli

Jenkins CI on OSX

Instructions on how to setup a secured Jenkins CI on a Mac.

Download & Install dependencies

All of these operations are done with your admin user.

Developer tools

Install the command line developer tools.

webinista

This will create a proxy server in whatever your availability zone your VPC is in. For me, that's us-east-1b. For you, that may be something different. Steps 10+ should more or less work regardless of your provider since those steps cover the setup and configuration of TinyProxy.

1. Click the Launch Instance button.
2. Choose Ubuntu Server 14.04 LTS (HVM), SSD Volume Type. This isn't strictly necessary. If you choose another OS, check its documentation for how to install new packages.
3. On the Choose an Instance Type screen, select t2.micro. It's Free Tier eligible.
4. Click the Next: ... buttons until you reach the Configure Security Group screen.
   • You may wish to reduce the amount of storage on the Add Storage screen. This is optional.
   • You may wish to add a tag on the Tag Instance screen. This is also optional.
5. On the Configure Security Group screen:

• Select Create a new security group.

ChuckJHardy

class MyJob < ActiveJob::Base
  queue_as :urgent

  rescue_from(NoResultsError) do
    retry_job wait: 5.minutes, queue: :default
  end

  def perform(*args)
    MyService.call(*args)
  end

smford22

Chef Local Development Workflow with ChefDK, Vagrant, VirtualBox, and Test Kitchen

Overview

The following document is intended to be a quick guide to getting you setup for doing local development with Chef. This guide was created on my MacBook, but should work fine with Linux, and Windows workstations as well.

Quick review on fundamental tenets of Chef

• Workstation - A workstation is a computer that is configured to run various Chef command-line tools that synchronize with a chef-repo, author cookbooks, interact with the Chef server, interact with nodes, or applications like Chef Delivery
• Node - A node is any machine—physical, virtual, cloud, network device, etc.—that is under management by Chef.
• Chef Server- The Chef server acts as a hub for configuration data. The Chef server stores cookbooks, the policies that are applied to nodes, and metadata that describes each registered