Alpha AlphaWong

Never touch your local /etc/hosts file in OS X again

To setup your computer to work with *.test domains, e.g. project.test, awesome.test and so on, without having to add to your hosts file each time.

Requirements

Homebrew
Mountain Lion -> High Sierra

Install

Notice

This script is no longer required with Docker for Mac which includes an option to run Docker at startup and doesn't use docker-machine to administer the local Docker engine.

Requirements

Docker Machine + Docker
curl
A Virtualbox-driven Docker Machine called "default" docker-machine create --driver virtualbox default (this is the default with Docker toolkit).

How to install redis-cli and psql client on your machine with Docker

Preparing docker images

We will use minimalistic Linux distribution called Alpine (5MB)

Dockerfile of redis-cli

FROM alpine:latest
RUN apk --update add redis

【译】Docker 和 S6 ——我的进程管理器新欢

点击这里阅读原文。

在我之前的博文中，我描述了我是如何在容器中使用进程管理器的，并做了一些展开。但我还是觉得有必要针对 Laurent Bercot 开发的 S6 做更详尽的说明。

什么用 S6 而不是 Supervisor？

Here's the simplest example showing how to do functional options in Golang.

They're a great way to enable users to set options and ease adding new options later.

package main

import (
	"flag"
	"fmt"

	package main

	import (
	"fmt"
	"net/http"
	"time"
	)

	var urls = []string{
	"https://splice.com/",

	// haversin(θ) function
	func hsin(theta float64) float64 {
	return math.Pow(math.Sin(theta/2), 2)
	}

	// Distance function returns the distance (in meters) between two points of
	// a given longitude and latitude relatively accurately (using a spherical
	// approximation of the Earth) through the Haversin Distance Formula for
	// great arc distance on a sphere with accuracy for small distances
	//

	package bigcache

	import (
	"encoding/binary"
	"testing"
	"time"
	"github.com/allegro/bigcache"
	"github.com/coocood/freecache"
	)

	// Package deepcopy provides a function for deep copying map[string]interface{}
	// values. Inspired by the StackOverflow answer at:
	// http://stackoverflow.com/a/28579297/1366283
	//
	// Uses the golang.org/pkg/encoding/gob package to do this and therefore has the
	// same caveats.
	// See: https://blog.golang.org/gobs-of-data
	// See: https://golang.org/pkg/encoding/gob/
	package deepcopy

	sudo apt install ruby ruby-dev
	sudo gem install travis
	# install path: /var/lib/gems/