Amazon S 3, App Engine Blobstore, Google Cloud Storage, Azure Blobs Svetlin Nakov Telerik Software Academy academy.telerik.com

 Cloud Storage: Introduction  Amazon S3  Google AppEngine Blobstore  Google Cloud Storage  Azure Blobs  Rackspace Cloud Files  Dropbox  Other Cloud Storage Services 2

Introduction

 Cloud Storage Services are public infrastructure for storage of large objects  Files / blobs / images / videos / etc.  Stored in Internet (in a public cloud)  Accessible through some API (REST / SDK / etc.)  May have front-end for end-user access  Could support access control list (ACL)  Could be free (with limits) or paid (on-demand)  Could support CDN delivery or not 4

 Amazon S 3  Google AppEngine Blobstore  Google Cloud Storage  Azure Blobs  Rackspace Cloud Files  Google Drive, Microsoft SkyDrive, Apple iCloud  Dropbox, Box.com, ADrive, Mozy, FlipDrive, SpiderOak, SugarSync 5

S3 == Simple Storage Service

 Amazon S3 == Simple Storage Service  On-demand file storage in the AWS cloud  Highly-reliable ( % durability and 99.99% availability)  Many APIs: RESTful / SOAP / C# / Java / others  Two modes:  Normal – more reliable, more expensive  Reduced redundancy – cheaper, but less reliable  Multiple locations: US, Europe, Asia 7

 Your cloud storage consists of buckets  Objects are stored in the buckets 8 Bucket Nakov-at-home.jpg Object Bucket Object MyCat.avi Sample.mp3

 Amazon S3 Pricing (as of May 2012)  Storage SizeStandard Storage Reduced Redundancy Storage First 1 TB / month$0.125 per GB$0.093 per GB Next 49 TB / month$0.110 per GB$0.083 per GB Next 450 TB / month$0.095 per GB$0.073 per GB Next 500 TB / month$0.090 per GB$0.063 per GB Next 4000 TB / month$0.080 per GB$0.053 per GB Over 5000 TB / month$0.055 per GB$0.037 per GB

 Steps to setup and use Amazon AWS and S3 1.Sign-up for Amazon AWS Free Tier  Login at Amazon AWS Console  Get Your AWS Access Credentials  Install AWS SDK for.NET / Java / PHP / REST  Start Developing AWS applications 10

Live Demo

Blob Storage Service + Java / Python API

 Google AppEngine Blobstore  Storage for large objects (blobs) in GAE  Keeps key-value-pairs  Key – string  Value – object binary data  GAE Blobstore has Java and Python API  BlobstoreService, BlobKey, BlobstoreInputStream  HTTP upload / download functionality  5 GB free quota, then $0.13 / GB per month 13

Cloud Storage with RESTful API

 GAE Cloud Storage  File storage service similar to Amazon S3  Paid, no free edition 15 Bucket Nakov-at-home.jpg Object Bucket Object MyCat.avi Sample.mp3 Project

 RESTful API – based on HTTP requests  GET Service GET Service GET Service  Lists all of the buckets that you own  PUT Bucket PUT Bucket PUT Bucket  Creates a bucket / changes bucket permissions  GET Bucket GET Bucket GET Bucket  Lists the contents of a bucket or retrieves the ACLs that are applied to a bucket  DELETE Bucket – deletes an empty bucket DELETE Bucket DELETE Bucket 16

 GET Object GET Object GET Object  Downloads an object / retrieves the ACLs  PUT Object PUT Object PUT Object  Uploads an object or applies new ACLs  DELETE Object DELETE Object DELETE Object  Deletes an object  POST Object POST Object POST Object  Uploads an object by using HTML forms  HEAD Object – lists object metadata HEAD Object HEAD Object 17

Blog Storage with RESTful and Managed API

BlobContainerAccounts sally PIC01.JPG PIC02.JPG images movies Blocks MOV1.AVI Block or Page 1 19

File Storage in the Cloud Served through a CDN

 Rackspace Cloud Files  Cloud storage service by Rackspace  Can use Akamai CDN  RESTful API / Java API / C# API / PHP API / …  Main operations  List containers, list objects, CRUD for objects  Pricing  On-demand: $0.15 / GB per month  Akamai CDN: $0.18 / GB 21

Cloud Storage with Auto Sync for Any Device Accessible through REST / Java / C# APIs

 Dropbox  File storage in the Dropbox cloud  2 GB free + bonus storage (up to 16 GB)  Auto-sync for any device / OS  Windows, Mac OS X, Linux  iPhone, iPad, Android  Accessible through REST / Java / C# APIs 

Live Demo

Google Drive, Microsoft SkyDrive, Apple iCloudBox.com, ADrive, Mozy, FlipDrive, SpiderOak, SugarSync

 Google Drive  Google’s online file storage  Has files and folders  Integrated with Google Docs  Free 5 GB storage  Has RESTful API +.NET, Java, PHP, Python SDK  developers.google.com/drive/downloads developers.google.com/drive/downloads  Similar to Microsoft SkyDrive 26

 Microsoft SkyDrive  Microsoft’s online file storage  Similar to Google Drive  Has files and folders  Integrated with Google Docs  Free 7-25 GB storage  Has RESTful API +.NET, Java, PHP, Python SDK  developers.google.com/drive/downloads developers.google.com/drive/downloads  Similar to Microsoft SkyDrive 27

 Other cloud storage services  Apple iCloudBox.com  Box.com  ADrive  Mozy  FlipDrive  SpiderOak  SugarSync  … 28

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1. Using the Dropbox API implement a simple application for publishing a photo album. It should implement the following functionality:  Select a folder that holds a set of photos (album)  Enter a name for the album (e.g. Nesebar2012 )  Generate an HTML file listing all the photos  Create a public folder in Dropbox for the album and upload all the photos in Dropbox through its API  Share the generated album for public view (make the folder public and get a public link)  Open the album's public link in the default Web browser

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