Journal of Simon Eames

Pluralsight Implementing CDNs for Azure Storage

  • Key CDN concepts
  • Automation with Azure tools
  • Authenticating
  • Exploring the static website feature

Overview

User <–> Edge Server(s) (first request caches to global edge machines) <–> Origin server (Azure Blob Service)

Features

  • Distributed Network
  • Massivley Scaled, High perf networks
  • Standard & Premium Pricing tiers with companies

Benifits of CDN with storagatw

Optimzation
, CDN is designed for Blob storage
Security
Configured to use Blob Sas Tokens

Pricing Sectury

CDN Costs
pay as you go
Storage Costs
charged for transfer between CDN Edge Server & Storage

Pricing by example

  • Study values on azure.com
  • Assumtions
Assumtions
  • Storages Blob Account
  • 10 files 1.2MB
  • All data occurs in Zone 1.
  • All content is cached with maximum age and remains unchanged
Without CDN

1.2MB, 10 files, 1M requests directly from storage.

  Storage Storage Read
Rate $0.02 / GB month $0.004 / 10k requests
Files 1.2MB 1m * 10
Requests $0.02 * (1.2MB / 1000 MB) 10m / 10k
Price $0.02 * 0.0012 GB $0.004 * 1000
Final $0.000024 $4
With CDN (1 user)

1.2MB, 10 files, 1M requests through storage.

  Storage Storage Read CDN Transfer 1 User 1k Users 50k users 1M Users
Rate   $0.004 / 10k requests $0.09 / GB      
Files   10 / 10000 = 0.001 request 0.0012 GB * 1 user 0.0012 GB * 1000 user 0.0012 GB * 50000 user 0.0012 GB * 1M users
Price   $0.004 * 0.001 $0.09 * 0.0012 GB 0.09 * 1.2GB 0.09 * 60GB 0.09 * 1200GB
Final $0.000024 $0.000004 $0.000108 $0.10 $5 $108
             
Pricing is linear with CDN storage

Billing demo

Cost management and Billing Link

Billing shows more detailed billing.

Implementing CDN

Enabling CDN for Azure Storage

CDN Object Model

  1. Subscription (all resources exist under sub)
    1. Profile
      1. Endpoint
      2. Origin

Setup

  • Choose Azure CDN
  • CDN Profile - organizer for application/business group/logical group.