Get rid of your servers! Use functions ☁ + = Manuela Rink Technical Evangelist @ 

#0 The Theoretical Part* *no excuses – first part needs to be theory! 

Transformation from own “iron” to cloud VMs 

Transformation from VMs to microservices / functions 

We’ve come a long long way together The cloud evolution 

Serverless or Jeff* or “just the next pig which is chased through the village?” * Serverless is just a name, Paul Johnston 

“[…] is a cloud computing code execution model in which the cloud provider fully manages starting and stopping virtual machines as necessary to serve requests, and requests are billed by an abstract measure of the resources required to satisfy the request, rather than per virtual machine, per hour.” -- Wikipedia https://en.wikipedia.org/wiki/Serverless_computing 

“Quick and easy run your code*, in the cloud, without worrying about infrastructure, maintenance or scaling.” *of various size -- Manu Rink, 2016 

AWS Lambda GA since April 2015 Google Cloud Functions Public Alpha Late 2015 IBM Cloud Functions Public Beta Early 2016 “Äscha” Functions GA since November 2016 

#1 Functions!!!11eleven *not long until the demos, I swear! 

Inspired by Chris Anderson @ Microsoft 

Inspired by Matthew Henderson @ Microsoft 

“Function App” is a group of functions Inspired by Matthew Henderson @ Microsoft 

Inherit from / Build on top of App Services Full control of dependencies and connectors Choose your fav language and coding environment Powerful integration into your existing Azure apps Choose from a wide variety of triggers 100% operated Open sourced 

App Service Features and Capabilities Enterprise Grade Apps Designed for secure mission-critical applications Fully Managed Platform Optimized for Availability and Automatic scale High Productivity Development Agility through Continuous Deployment Hybrid Connections / VPN / VLAN Scheduled Backup Azure Active Directory Integration Site Resiliency, HA, and DR Web Jobs Role Base Access Control Audit / Compliance Enterprise Migration Client Certs Cache IP Restrictions/ SSL Web Sockets SQL, MySQL, DocDB, & Mongo Sticky Sessions Authorization/ Authentication Automated Deployment AutoScale Built-in Load Balancing Worldwide Datacenter Coverage End Point Monitoring & Alerts App Gallery DR Site Support WildCard Support Dedicated IP address HTTP Compression CDN Support for Websites Premium WordPress App Services Environments Remote Debugging w/ Visual Studio Site Staging Slots Testing in Production Continuous Integration/Deployment Git, Visual Studio Online and GitHub App & Site Diagnostics OS & Framework Patching Site Extensions Gallery NET, PHP , Python, Node, Java Framework Installer Browser-based editing Auto-Healing Logging and Auditing Admin-Site Support Site Extension Inspired by Matthew Henderson @ Microsoft 

Templates • Azure Internal Service Triggers • Blob • EventHub • Storage Queue • Service Bus Queue • Service Bus Topic • Generic Triggers • Generic WebHook • GitHub WebHook • Http • Timer Languages • Core • C# • JS/Node • Experimental • PowerShell • TypeScript • Python • PHP • F# • Bash 

#2 Building the real stuff*! … in 4 stages *finally! 

Yeaaah, but what can I build with ’em? 

Scenario 0 The Easy Cake use HTTP trigger to provide HTTP endpoints to build a Hello Cake endpoint 

Scenario 0 – Easy cake! – Simple HTTP endpoint 

Scenario 0 – Easy cake deployment! All together in a bash script Single Azure CLI statements 

Y A X B Easy Cake LIVE DEMO 

Scenario 1 Connect all the things! use web hooks for wiring up heterogeneous services to connect Slack with your mobile backend 

Scenario 1 - Connect all the things! – Slack & mobile backend The Serverless Connector - Use Functions to write Slack posts in your mobile backend 

Y A X B Connect all the things! LIVE DEMO 

Scenario 2 Like a pro! use Blob Trigger to let function react on storage I/O of other function to build an image resizing service 

Scenario 2 - Like a pro! – Image Resizing Service https://github.com/codePrincess/resizingService 

Scenario 2 - Like a pro! – Image Resizing Service 

https://github.com/codePrincess/resizingService Scenario 2 - Like a pro! – Image Resizing Service 

Y A X B Like a pro! LIVE DEMO 

Scenario 3 The Fun Stuff! use OCR of CS Computer Vision API and text detection logic in a function to build an identification card validation service 

Scenario 3 – The fun stuff! – ID card validation service https://github.com/codePrincess/funkyVerfication 

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Y A X B The fun stuff! LIVE DEMO 

#3 a Penny saved is a penny goT* *’nuff said! 

Cool stuff so far … and the costs? 

*for the 1 million executions and the first 400.000 GB/s It’s free* 

Function executes 2.000.000 times with a duration of 1 second using 1536MB RAM Resource consumption costs 2 million exec * 1 second = 2 million seconds 1536 MB / 1024 MB = 1.5 GB 1.5 GB * 2 million seconds = 3 million GBs 3 million GBs – 400000 GBs = 2.6 million GBs 2.6 million GBs * 0.000014 $/GBs = 41.60 $ Execution costs 2 million exec - 1 million exec = 1 million exec 1 million exec * 0.20$ = 0.20$ 41.60$ + 0.20$ = 41.80$ Pricing Overview Pricing Calculator Same example – just with 128MB RAM 0 $ + 0.20$ = 0.20$ Resource consumption costs 2 million exec * 1 second = 2 million seconds 128 MB / 1024 MB = 0.125 GB 0.125 GB * 2 million seconds = 0.25 million GBs 0.25 million GBs – 400000 GBs = 0 GBs 0 million GBs * 0.000016 $/GBs = 0 $ Execution costs 2 million exec - 1 million exec = 1 million exec 1 million exec * 0.20$ = 0.20$ 

Consumption Plan Scaling on demand – 100% managed Quota Definition as Spending Limit 

App Service Plan Scaling depending on plan Cost are fixed with the plan’s tier Basic Standard Premium ~55€ ~75€ ~225€ 

#4 ... This is the end! 

Easy to build & deploy – 100% operated Various languages supported Lot of triggers available Inter-connectable in- & outside of Azure Cost effective 

#5 ... Where to go from here? 

Serverless on Azure https://azure.microsoft.com/en-us/overview/serverless-computing/ Azure Functions documentation https://docs.microsoft.com/en-us/azure/azure-functions/ Blogposts with How-Tos and source code to all examples in this deck https://medium.com/royallyserverless Nice and neat link and learning material https://blogs.msdn.microsoft.com/appserviceteam/2016/12/01/running-azure-functions-locally-with-the-cli/ https://www.npmjs.com/package/azure-functions-cli https://contos.io/azure-functions-cli-quick-start-ee843dfbe72c#.v90g0n77d Brandnew – Azure Functions now part of the Serverless Framework https://serverless.com/framework/docs/providers/azure/ It’s dangerous to go alone - take this! 

Merci :) Manu Rink Technical Evangelist [email protected] @codeprincess says