Serverless and Azure Functions Introduction

This is part of a full day Serverless training I hosted for Microsoft Turkey in Istanbul introducing Azure Functions as a Serverless Platform.

Transcript

1. Serverless and Azure
   Functions Introduction
   Daron Yöndem
   http://daron.me
   @daronyondem
   

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2. Serverless architectures refer to applications that
   significantly depend on third-party services (knows as
   Backend as a Service or "BaaS") or on custom code
   that's run in ephemeral containers (Function as a
   Service or "FaaS")
   

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3. What is Serverless?
   • The real dream of PAAS
   • No Infrastructure, No Containers
   • Scalable as hell!
   • Granular Billing (GB/s)
   • No commitment, no hardware provisioning (really?)
   

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4. What’s wrong with containers?
   • Containers are the new VMs!
   • Server Patching > Container Image Batching
   • Container Orchestration is hard.
   

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5. Serverless != Microservices
   • You can have a fleet of EC2 instances, running containers,
   orchestrating and still worry about infrastructure.
   • You can have dozens of functions tightly coupled and
   delivered as a behemoth.
   

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6. Azure Functions 101
   • Javascript, C#, C# Script, Python, PHP, Batch, Powershell
   • Timer-based processing
   • SaaS Event Processing
   • Full Serverless Architecture
   • Real-Time Stream Processing
   • Real-Time Bot Messaging
   • Serverless mobile back-ends
   

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7. Creating our first “Hello World” function!
   DEMO
   

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12. Out of the Box Authentication of
    HTTP Endpoints
    • Anonymous
    • Function Key
    • Host Key
    

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18. Anatomy of a Function
    • A “Run” file that containing the function code
    • A “Function” file containing all service and trigger bindings and
    parameters
    • A “Project” file containing project assembly and NuGet
    package references
    • App Service settings, such as connection strings and API keys
    

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19. Running Functions Locally
    V1 Only on Windows
    npm install -g azure-functions-core-tools
    V2 with .NET Core on all platforms
    npm install -g azure-functions-core-tools@core
    Initialize your first function
    func init MyFunctionProj
    

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20. Precompiled functions with C# and Visual Studio
    DEMO
    

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25. Application Settings
    • local.settings.json will have all your local settings on
    the dev machine.
    • C# can also be read in your code as environment variables.
    Use System.Environment.GetEnvironmentVariable
    or ConfigurationManager.AppSettings.
    • In JavaScript, use process.env
    

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26. Where can I deploy my Functions?
    • Extend the existing Azure App Service platform
    • Go with “Consumption Plan” and be pure Serverless
    • Deploy Functions Runtime on an on-prem location in your
    Private Cloud.
    

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27. Links worth sharing
    Documentation
    • https://goo.gl/TqGtMr
    Azure Functions Runtime (Run on-prem)
    • https://goo.gl/hV7KgJ
    Documentation for the host.json file
    • https://goo.gl/W6kcV7
    More CLI commands to run functions locally
    • https://goo.gl/PSkqet
    

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28. Thanks
    http://daron.me | @daronyondem
    Download slides here;
    http://daron.me/decks
    

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