Cimarron Taylor cimarron-pistoncloud

Vagrant Setup

This tutorial guides you through creating your first Vagrant project.

We start with a generic Ubuntu VM, and use the Chef provisioning tool to:

install packages for vim, git
create user accounts, as specified in included JSON config files
install specified user dotfiles (.bashrc, .vimrc, etc) from a git repository

Afterwards, we'll see how easy it is to package our newly provisioned VM

There are three easy to make mistakes in go. I present them here in the way they are often found in the wild, not in the way that is easiest to understand.

All three of these mistakes have been made in Kubernetes code, getting past code review at least once each that I know of.

Loop variables are scoped outside the loop.

What do these lines do? Make predictions and then scroll down.

func print(pi *int) { fmt.Println(*pi) }

Using `<details>` in GitHub

Suppose you're opening an issue and there's a lot noisey logs that may be useful.

Rather than wrecking readability, wrap it in a <details> tag!

<details>
 <summary>Summary Goes Here</summary>

Requirements

Minikube requires that VT-x/AMD-v virtualization is enabled in BIOS. To check that this is enabled on OSX / macOS run:

sysctl -a | grep machdep.cpu.features | grep VMX

If there's output, you're good!

Prerequisites

ACL / Roles + Permissions

https://github.com/djvirgen/virgen-acl Simple and elegant, create your own checks. No middleware?

https://github.com/OptimalBits/node_acl Use as middleware, create your own roles and access. Great choice.

https://github.com/tschaub/authorized Similar to connect roles... but a bit more robust? you can create roles and action, and associate many roles with that action

	#!/usr/bin/env python
	'''
	Mocking Httpclient and AsyncHttpclient in Tornado Server
	'''

	import unittest
	import urllib
	import tornado.gen
	import tornado.ioloop
	import tornado.web

	#!/usr/bin/env python

	"""
	How to use it:
	1. Just `kill -2 PROCESS_ID` or `kill -15 PROCESS_ID` , The Tornado Web Server Will shutdown after process all the request.
	2. When you run it behind Nginx, it can graceful reboot your production server.

	3. Nice Print in http://weibo.com/1682780325/zgkb7g8k7

	"""

	defmodule Tcprpc.Server do
	use GenServer.Behaviour

	defrecord State, port: nil, lsock: nil, request_count: 0

	def start_link(port) do
	:gen_server.start_link({ :local, :tcprcp }, __MODULE__, port, [])
	end

	def start_link() do

	package main

	import (
	"encoding/json"
	"log"
	"net/http"
	"reflect"
	"time"

	"github.com/gorilla/context"

	{
	"$schema": "http://json-schema.org/draft-04/schema#",
	"title": "JSON API Schema",
	"description": "This is a schema for responses in the JSON API format. For more, see http://jsonapi.org",
	"x-oneOf": [
	{
	"$ref": "#/definitions/success"
	},
	{
	"$ref": "#/definitions/failure"