1. Welcome to the
WeWork
200 Portland St, Boston MA

2. Sponsor

4. Azure Functions with VS Code
Credits: Some pictures from Build Azure.com

5. Who am I? Naval Research labs, TASC Amazon.com Microsoft
AI, Image Understanding and Geometric Reasoning, Expert Systems
Amazon.com
Helped build Catalogs for book, music, and video
Microsoft
Consulting services: Azure, SOA, BizTalk, SharePoint, Workflow, Solution Architecture
East Region Community lead for Federated Identity Management
Mission Hill Technology
SOA, Solution Architecture, SharePoint, Azure, OpenID Connect and Oauth, SaaS, IaaS

6. Contact Me Email Phone Twitter Linked In
Phone
Twitter
@jelmht
Linked In

7. Why Azure Functions? How did we get here? Functional Programming
Classes with interfaces, Facades
REST and Stateless, Serverless Functions

8. Why Azure Functions? API as architecture Serverless Scalable
API -> Management -> Communication -> presentation
A Dream Map
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9. Core Ideas Azure Functions Function Chaining for long running tasks
Micro Chains
Communication Queues
Durable Functions

10. Service Plans Consumption Plan App Service Plan
Pay based upon resources used
Executions, Time, Memory
App Service Plan
You own the VM
Think IasS
Linux, boutique images

11. Consumption Plan Scale Controller Auto scales CPU and memory
Adds additional instances of the Function Host
Based on number of events that its functions are triggered on
Limited to 1.5 GB for each instance
Is the Function App
All functions within the App share resources
Scale at the same time

12. App Service Plan Function Apps on dedicated VMs
Basic, Standard, Premium
Similar to Web Apps, API Apps, and Mobile Apps
Functions Host always running
Supports Linux
Decouples cost from execution, time, and memory
Pay no more than the cost of the VM

13. App Service Plan Consider when:
Under utilized VMs already in architecture or Expect to run continuously
Need more CPU, memory, or time than available in Consumption Plan
Need VNET/VPN or larger VM sizes, Linux or need a custom image

14. Runtime Scaling Scale Controller
Heuristic scaling based upon trigger type
Bi directional scaling as compute demand changes
Different triggers may have different scaling limits
Single Function App
Only scale to a maximum of 200 instances
May process more than a single message and no set limit on concurrent executions
New instances only allocated at 10 second intervals

15. Scale Controller

16. Azure Function Chaining

17. Durable Functions

18. Tools you will need or like
NvM
NodeJS
VS Code
Azure Storage Explorer
Postman

19. Mind Maps Azure CLI Choices
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Install
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Create Resource Group
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20. Mind Maps Initialize VS Code
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Modify Runtime Props
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Publish Function App
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21. Mind Maps Create Storage Account
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Check Runtime
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Create Function App
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22. Mind Maps Delete Resource Group
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Shell Launcher, host.json, Git
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23. Resources Azure Functions Documentation Azure Functions Resources
Azure Functions Resources
Stack Overflow
Twitter

24. Resources Getting Started Building Azure Functions in C# with VS Code
Building Azure Functions in C# with VS Code
studio-code/

25. Consumption Plan Pricing
Function Pricing
Calculator Tool
Function App
monitor

26. The End
Onto our Quest!!
Let’s look at some code

27. Consumption Plan (Extra Slide)
Stored on Azure File shares
Main storage account
No recovery when deleted
Triggers
Blob trigger can be delayed up to 10 minutes
Blob Processing
Event Grid
Queue message with name

28. Consumption Plan (Extra Slide)
Default time limit 5 minutes scalable to 10 minutes
host.json file
Billing aggregated across all functions within a Function App
Executions
Time
Memory
Scale out automatically
Pay when running
Even during periods of high load

29. App Service Plan (Extra Slide)
Enable “Always On” setting
Similar to Web Jobs
Functions runtime goes to idle after a few minutes
Only HTTP triggers will wake up your functions
Only available in Service App Plan
Consumption Plan automatically activates function Apps