TeqNation: Building Serverless Applications

Maintaining servers is boring and tedious, even with properly automated processes in place. So, why don’t you build your next product using NO servers whatsoever? Wait, wut!? Who wouldn’t want this!

In this talk I will show what serverless is, place it in context, and show you why it’s such an interesting concept. I will show you how you can deploy your apps without maintaining any servers, while still making your application scale infinitely, on-demand and cost effective.

This is going to be awesome, don’t miss out!

Transcript

1. BUILDING SERVERLESS APPLICATIONS
   

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2. SANDER VAN DE GRAAF.
   Cloud Solutions Architect / Consultant
   15+ years large scale applications
   5+ years AWS experience
   AWS APN Ambassador
   http://twitter.com/svdgraaf
   http://linkedin.com/in/svdgraaf
   http://svdgraaf.nl
   mail@svdgraaf.nl
   

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4. WHAT IS SERVERLESS?
   

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5. PERSPECTIVE.
   •VM's
   •Hardware abstraction
   •Unit of scale: machines
   •
   WHAT IS SERVERLESS?
   

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6. PERSPECTIVE.
   •VM's
   •Hardware abstraction
   •Unit of scale: machines
   •Containers
   •OS abstraction
   •Unit of scale: application
   •
   WHAT IS SERVERLESS?
   

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7. PERSPECTIVE.
   •VM's
   •Hardware abstraction
   •Unit of scale: machines
   •Containers
   •OS abstraction
   •Unit of scale: application
   •Serverless
   •Runtime abstraction
   •Unit of scale: functions
   WHAT IS SERVERLESS?
   

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8. PERSPECTIVE.
   •VM's
   "I want to configure machines, storage, networking and my OS"
   •Containers
   "I want to run servers, configure applications and control scaling"
   •Serverless
   "Run my code when it's needed"
   WHAT IS SERVERLESS?
   

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9. PERSPECTIVE.
   By Simon Wardley: https://twitter.com/swardley/status/951783539334352896
   WHAT IS SERVERLESS?
   

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10. WHAT IS SERVERLESS?
    "An application running on 3rd
    party services (BAAS) and/or using
    serverless computing (FAAS)"
    - Martin Fowler
    WHAT IS SERVERLESS?
    

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11. WHAT IS SERVERLESS?
    "An application running on 3rd
    party services (BAAS) and/or using
    serverless computing (FAAS)"
    - Martin Fowler
    WHAT IS SERVERLESS?
    

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12. BAAS/FAAS.
    WHAT IS SERVERLESS?
    •BAAS: Backend As A Service
    - Databases: Parse/Firebase/etc
    - Authentication: Auth0, AWS Cognito
    - etc...
    •FAAS: Functions As A Service
    

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13. PROVIDERS.
    Google
    Cloud Functions
    Azure
    Functions
    AWS
    Lambda
    WHAT IS SERVERLESS?
    

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14. WHY SERVERLESS?
    

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15. PATCHING?!
    Patching? YAY!

    Said no one ever.
    WHY SERVERLESS?
    

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16. PATCHING?!
    WHY SERVERLESS?
    

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17. PATCHING?!
    WHY SERVERLESS?
    

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18. RUNTIMES.
    •C# .net core 1.0/2.0
    •Go 1.x
    •Java 8
    •NodeJS 4.3, 6.10
    •Python 2.7, 3.6
    WHY SERVERLESS?
    

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19. EVENT BASED.
    • API Gateway
    • AWS IoT
    • Alexa Skills Kit
    • Alexa Smart Home
    • CloudWatch Events
    • CloudWatch Logs
    • CodeCommit
    • Cognito Sync Trigger
    • DynamoDB
    • Kinesis
    • S3
    • SNS
    WHY SERVERLESS?
    

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20. STATELESS.
    Event
    doStuff(event)
    Time
    
    WHY SERVERLESS?
    

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21. STATELESS.
    doStuff()
    Time
    doStuff()
    doStuff()
    doStuff()
    doStuff()
    doStuff()
    doStuff()
    doStuff()
    
    
    
    
    
    
    
    
    WHY SERVERLESS?
    

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22. SCALABLE BY DEFAULT.
    Seconds
    WHY SERVERLESS?
    Provisioned
    Servers
    Requests /
    second
    0
    100
    200
    300
    400
    0 10 20 30 40 50 60 70 80 90 100 110 120 130
    Requests
    

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23. SCALABLE BY DEFAULT.
    Seconds
    WHY SERVERLESS?
    Provisioned
    Servers
    Requests /
    second
    0
    100
    200
    300
    400
    0 10 20 30 40 50 60 70 80 90 100 110 120
    Requests
    130
    

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24. COSTS.
    Pay per usage
    VM's: per minute
    WHY SERVERLESS?
    

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25. COSTS.
    Pay per usage
    VM's: per minute
    Lambda: Per 100ms + per request
    WHY SERVERLESS?
    

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26. COSTS.
    Pay per usage
    VM's: per minute
    Lambda: Per 100ms + per request
    $0.000000208 / 100ms
    +
    $0.0000002 / request
    

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27. FREE STUFF!
    WHY SERVERLESS?
    

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28. FREE STUFF!
    400.000 GB-seconds / month
    1 Million requests / month
    WHY SERVERLESS?
    

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29. EXAMPLES.
    

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30. SIMPLE WEBSITE.
    

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31. CRON.
    

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32. JOB QUEUEUEUEUE.
    

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33. RESILIENT UPLOADING.
    

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34. SERVERLESS LORAWAN.
    

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40. SERVERLESS LORAWAN.
    https://www.thethingsnetwork.org/docs/applications/http/
    

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42. FRAMEWORKS.
    •Serverless Framework: serverless.com
    •Zappa: zappa.io
    •Chalice: github.com/aws/chalice
    

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43. DEMO
    

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49. SERVERLESS.
    •serverless.yml
    

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50. SERVERLESS.
    •Serverless functions
    

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51. SERVERLESS.
    •Deploy
    •pipenv run serverless deploy
    

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52. SERVERLESS.
    •Setup ttn webhook
    •https://console.thethingsnetwork.org/applications/my-svdgraaf-
    application/integrations
    

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53. SERVERLESS.
    •Simulate device
    •echo "20.3" | xxd -pu | xargs ttnctl devices simulate my-test-device
    

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54. SERVERLESS.
    •Show logs
    •https://console.aws.amazon.com/cloudwatch/home?region=us-
    east-1#logs:prefix=/aws/lambda/ttn-serverless
    

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55. SERVERLESS.
    •Call back
    

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56. SERVERLESS.
    •Show logs
    •https://console.aws.amazon.com/cloudwatch/home?region=us-
    east-1#logStream:group=/aws/lambda/ttn-serverless-dev-downlink
    •
    

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57. SERVERLESS.
    •Show data
    •https://console.thethingsnetwork.org/applications/my-svdgraaf-
    application/devices/my-test-device/data
    

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58. CONCLUSION.
    •Cost effective infrastructure
    •Event based
    •Stateless
    •Highly scalable out of the box
    

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59. QUESTIONS?
    Cloud Solutions Architect / Consultant
    15+ years large scale applications
    5+ years AWS experience
    AWS APN Ambassador
    http://twitter.com/svdgraaf
    http://linkedin.com/in/svdgraaf
    http://svdgraaf.nl
    mail@svdgraaf.nl
    SANDER VAN DE GRAAF.
    

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