Grégory Horion gregory

Docker Cheat Sheet

NOTE: 534 stars, 106 forks. I love you all. Please contribute tips and edits back to this cheat sheet -- email's [email protected] and you can treat gists like git repositories and send git diffs.

Deploy Rails 4 app with Dokku on DigitalOcean

Install dokku

First create a Ubuntu 13.04 x64 droplet on DigitalOcean Control Panel

Then ssh with root account, run this in termianl:

$ wget -qO- https://raw.github.com/progrium/dokku/master/bootstrap.sh | sudo bash

Running Docker on two hosts, bridged with Tinc

This Gist is similar to https://gist.github.com/noteed/8656989 which uses Open vSwitch instead of Tinc.

Setup

Download the install.sh script and run it:

> https://gist.githubusercontent.com/noteed/11031504/raw/install.sh

Examples of HAL+json API calls for a truck

Get Trucks

GET /trucks HTTP/1.1
Host: api.example.com
Authorization: Basic username:password
Accept: application/hal+json

Examples of RESTful API calls for E-commerce platforms

These examples are type 3 RESTful API requests and responses. The JSON-HAL specification is used to implement HATEOAS.

Some of the examples are based on my work as architect of the RESTful API at http://www.hautelook.com. All proprietary information has been removed.

Relevant links

JSON-HAL specification: http://stateless.co/hal_specification.html#media_type_identifiers
JSON linking with HAL: http://blog.stateless.co/post/13296666138/json-linking-with-hal

	# Capistrano configuration
	#
	# require 'new_relic/recipes' - Newrelic notification about deployment
	# require 'capistrano/ext/multistage' - We use 2 deployment environment: staging and production.
	# set :deploy_via, :remote_cache - fetch only latest changes during deployment
	# set :normalize_asset_timestamps - no need to touch (date modification) every assets
	# "deploy:web:disable" - traditional maintenance page (during DB migrations deployment)
	# task :restart - Unicorn with preload_app should be reloaded by USR2+QUIT signals, not HUP

	# MOTIVATION: As rails apps are growing, people are noticing the drawbacks
	# of the ActiveRecord pattern. Several apps I have seen, and several
	# developers I have spoken to are looking towards other patterns for object
	# persistence. The major drawback with ActiveRecord is that the notion
	# of the domain object is conflated with what it means to store/retrieve
	# it in any given format (like sql, json, key/value, etc).
	#
	# This is an attempt to codify the Repository pattern in a way that would
	# feel comfortable to beginner and seasoned Ruby developers alike.
	#

	# Author: Diego d'Ursel
	# ---------------------
	#
	# This simple lib help you to add state to a model without implementing boring functions for each state
	# just add macro like "add_state 1, 'mystate'" to the definition of your ActiveRecord model
	# this lib require a "state" field in the model
	#
	# some example of usage:
	# ---------------------
	# add_state 0, 'inactive'