amad

#!/bin/sh

# NOTE:
# Make sure that the value of Name, Type, TTL are the same with your DNS Record Set

HOSTED_ZONE_ID=<YOUR_HOSTED_ZONE_ID>
RESOURCE_VALUE=<YOUR_DNS_RESOURCE_VALUE-ex:IP or dns>
DNS_NAME=<YOUR_DNS_NAME-ex: subdomain.domain.com>
RECORD_TYPE=<DNS_RECORD_TYPE-ex: A, CNAME>
TTL=<TTL_VALUE>

amad

trait Car {
  val doorsNb: Int

  override def equals(a: Any) = {
    a match {
      case c: Car => doorsNb == c.doorsNb
      case other  => false 
    }
  }
}

amad

Best Practices for Azure Redis

Below are a set of best practices that I recommend for most customers. This information is based on my experience helping hundreds of Azure Redis customers investigate various issues.

Configuration and Concepts

1. Use Standard or Premium Tier for Production systems. The Basic Tier is a single node system with no data replication and no SLA. Also, use at least a C1 cache. C0 caches are really meant for simple dev/test scenarios since they have a shared CPU core, very little memory, are prone to "noisy neighbor", etc.
2. Remember that Redis is an In-Memory data store. Read this article so that you are aware of scenarios where data loss can occur.
3. Configure your client library to use a "connect timeout" of at least 10 to 15 seconds, giving the system time to connect even under higher CPU conditions. If your client or server tend to be under high load

amad

Setting up iOS Universal Links

Table of Contents

• Resources
  • Resources General link resources
  • Validation tools
• Server configuration
  • Apple JSON Metadata file
• Create a JSON file called apple-app-association

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Tutorial: Designing a GraphQL API

This tutorial was created by Shopify for internal purposes. We've created a public version of it since we think it's useful to anyone creating a GraphQL API.

It's based on lessons learned from creating and evolving production schemas at Shopify over almost 3 years. The tutorial has evolved and will continue to change in the future so nothing is set in stone.

amad

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

amad

package main

import (
	"context"
	"flag"
	"fmt"
	"log"
	"net/http"
	"os"
	"os/signal"

amad

# Our .tmux.conf file
# Setting the prefix from C-b to C-s
set -g prefix C-s

# Free the original Ctrl-b prefix keybinding
unbind C-b
#setting the delay between prefix and command
set -sg escape-time 1
# Ensure that we can send Ctrl-S to other apps
bind C-s send-prefix

amad

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

amad

// by Erik Wrenholt
import java.util.*;

class Mandelbrot
{  
    static int BAILOUT = 16;
    static int MAX_ITERATIONS = 1000;
    
    private static int iterate(float x, float y)
    {