col

require 'active_support/concern'

module Scopable
  extend ActiveSupport::Concern

  module ClassMethods

    ##
    # Creates scopes for all the belongs_to associations provided as args.
    # For example 'scope_for :user' creates the following scopes.

col

#include <Servo.h> 

Servo esc;

int escPin = 9;
int minPulseRate = 1000;
int maxPulseRate = 2000;
int throttleChangeDelay = 100;

void setup() {

col

import processing.opengl.*;
import controlP5.*;

ControlP5 MyController;

void setup()
{
  size(400, 400, OPENGL);
  MyController = new ControlP5(this);
  MyController.addSlider("yRotation",0,6.28,20,20,20,200,10);

col

#include <Bridge.h>
#include <YunServer.h>
#include <YunClient.h>

YunServer server;

void setup() {
  Serial.begin(9600);
  pinMode(13,OUTPUT);
  Bridge.begin();

col

Lightweight Ruby JSON API

Step 1 - Create a 'Hello World' Sinatra app

Create a Gemfile

source 'https://rubygems.org'

gem 'sinatra'

col

Lightweight Ruby JSON API

Step 4 - Add a SQL data store

Firstly, lets add the heroku-postgresql addon to our project.

heroku addons:add heroku-postgresql

col

Config Phoenix App For Dokku Deploy

1. Set the hostname via an environment variable in prod.exs

• url: [host: System.get_env("HOSTNAME"), port: 80],

2. Set the secret key base via an environment variable in prod.secret.exs

• secret_key_base: System.get_env("SECRET_KEY_BASE")

3. Set the database connection url via an environment variable in prod.secret.exs

• url: System.get_env("DATABASE_URL"),

col

Setup Dokku instance on Digital Ocean

Step 1 - Create a Droplet

1. Goto https://www.digitalocean.com
2. Create Droplet
3. Choose 'One Click App' - 'Dokku 0.4.7 14.04'
4. Choose size (I chose the $10 option)
5. No additional requirements
6. Setup an SSH Key

col

Deploy a Phoenix app with Dokku

Pre-requisits

1. Setup Dokku instance on Digital Ocean
2. Config Phoenix App For Dokku Deploy

Step 1 - Create app

$ ssh <mydomain.com>
$ dokku apps:create 

col

Setup SSL for Dokku App

Create an SSL certificate signing request

dokku certs:generate <app_name> <mydomain>

Answer all the questions.

Submit that to an SSL signing authoority / online vendor. Wait for the cert to be generated.