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import json
from hashlib import blake2b

json_content = json.load(open('json_file.json'))
items = []
for item in json_content:
  items.append(item['instance_type'])

for i in items:
  instance = i

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Python environments in macOS

The latest version of macOS 10.13.3 has Python 2.7.10 installed by default, yet Python has been available on macOS and previously OS X for quite a while now.

Consult the Apple's Open Source Reference Library, and browse through the various releases of the OS to find out which Python version was included). But what if you have a project which requires Python 3 ?

The following instructions will guide you through the process of:

• installing Python 3 using Homebrew
• running multiple Python verions as sandboxed environments

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# Create the appropriate directory structure on the TimeCapsule and mount the root folder ('Data' in this example)
# Backup path: /Volumes/Data/iOS/Backup/

$ cp -r ~/Library/Application\ Support/MobileSync/Backup/ /Volumes/Data/iOS
$ cd ~/Library/Application\ Support/MobileSync/
$ rm -r Backup/

$ ln -s /Volumes/Data/iOS/Backup/ ~/Library/Application\ Support/MobileSync/

# Open iTunes select your iPhone/iPad and click 'Back Up Now'-buttom

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## Install NGINX
## when installing on Amazon Linux AMI, use:
$ sudo yum install nginx -y
## when installing on Amazon Linux 2 AMI, use
$ sudo amazon-linux-extras install nginx1.12 -y

## Install PHP and PHP-FPM
# for PHP version 7.1 use php71 and php71-fpm instead
$ sudo yum install php -y
$ sudo yum install php-fpm -y

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# UPDATED 17 February 2019
# Redirect all HTTP traffic to HTTPS
server {
   listen 80;
   listen [::]:80; 	
   server_name www.domain.com domain.com;
   return 301 https://$host$request_uri;
}

# SSL configuration

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<?php
// Get the PHP helper library from twilio.com/docs/php/install
require_once 'twilio/autoload.php'; // Loads the library
use Twilio\Rest\Client;

// Your account details via twilio.com/user/account
$sid = "xxxxxxxxxxxxxxxxxx";    //Account Sid
$token = "xxxxxxxxxxxxxxxxxx";  //Auth Token
$client = new Client($sid, $token);

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Install MongoDB on macOS Sierra

This procedure explains how to install MongoDB using Homebrew on macOS Sierra 10.12.
Official MongoDB install documentation: here

Install Homebrew

• Installing Homebrew is effortless, open Terminal and enter :
  $ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

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Install MySQL on macOS Sierra

This procedure explains how to install MySQL using Homebrew on macOS Sierra 10.12

Install Homebrew

• Installing Homebrew is effortless, open Terminal and enter :
  $ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
• Note: Homebrew will download and install Command Line Tools for Xcode 8.0 as part of the installation process.

Install MySQL

At this time of writing, Homebrew has MySQL version 5.7.15 as default formulae in its main repository :

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Installing Node.js on Amazon Linux AMI

The following will guide you through the process of installing Node.js on an AWS EC2 instance running Amazon Linux AMI 2016.09 - Release Notes

For this process I'll be using a t2.micro EC2 instance running Amazon Linux AMI (ami-d41d58a7). Once the EC2 instance is up-and-running, connect to your server via ssh

• Make sure our server has the latest packages : sudo yum update -y

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#!/bin/bash
brew install redis  # Install Redis using Homebrew
ln -sfv /usr/local/opt/redis/*.plist ~/Library/LaunchAgents  # Enable Redis autostart

launchctl load ~/Library/LaunchAgents/homebrew.mxcl.redis.plist  # Start Redis server via launchctl
# homebrew.mxcl.redis.plist contains reference to redis.conf file location: /usr/local/etc/redis.conf 

redis-server /usr/local/etc/redis.conf # Start Redis server using configuration file, Ctrl+C to stop
redis-cli ping # Check if the Redis server is running