I've seen Serverless

I've seen Serverless, and I've come back to tell you all about it.

The presentation was given at the Microservices Meetup in Dublin on 29th November 2018.

Transcript

1. I’VE SEEN
   SERVERLESS 

   AND I’VE COME BACK
   TO TELL YOU
   ALL ABOUT IT
   @MarcoTroisi
   Dublin Microservices Meetup
   

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2. Marco Troisi
   www.marcotroisi.com
   

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3. @MarcoTroisi
   I’VE SEEN
   SERVERLESS 

   AND I’VE COME BACK
   TO TELL YOU
   ALL ABOUT IT
   

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4. @MarcoTroisi
   UNDERSTANDING
   SERVERLESS
   I’VE SEEN SERVERLESS
   

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5. @MarcoTroisi
   HOW IT IS
   PRESENTED TO US
   I’VE SEEN SERVERLESS
   

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6. @MarcoTroisi
   HOW IT IS
   PRESENTED TO US
   I’VE SEEN SERVERLESS
   

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7. @MarcoTroisi
   HOW IT IS
   PRESENTED TO US
   “Run code without thinking
   about servers.”
   I’VE SEEN SERVERLESS
   

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8. @MarcoTroisi
   HOW IT IS
   PRESENTED TO US
   “Pay only for the compute time
   you consume”
   I’VE SEEN SERVERLESS
   

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9. @MarcoTroisi
   HOW IT IS
   PRESENTED TO US
   I’VE SEEN SERVERLESS
   

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10. @MarcoTroisi
    HOW IT IS
    PRESENTED TO US
    “A serverless platform for building
    event-based microservices”
    I’VE SEEN SERVERLESS
    

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11. @MarcoTroisi
    WHAT SERVERLESS
    ESSENTIALLY IS
    I’VE SEEN SERVERLESS
    

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12. @MarcoTroisi
    I’VE SEEN SERVERLESS
    

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13. @MarcoTroisi
    1. PaaS (Platform as a Service)
    I’VE SEEN SERVERLESS
    

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14. @MarcoTroisi
    1. PaaS (Platform as a Service)
    2. Servers that start
    in <20ms
    I’VE SEEN SERVERLESS
    

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15. @MarcoTroisi
    SERVERLESS
    =
    Heroku on steroids
    I’VE SEEN SERVERLESS
    

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16. @MarcoTroisi
    DO WE NEED
    SERVERLESS?
    I’VE SEEN SERVERLESS
    

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17. @MarcoTroisi
    WHEN TO USE IT
    I’VE SEEN SERVERLESS
    

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18. @MarcoTroisi
    WHEN TO USE IT
    1. Microservices
    I’VE SEEN SERVERLESS
    

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19. @MarcoTroisi
    WHEN TO USE IT
    1. Microservices
    2. Not always on
    I’VE SEEN SERVERLESS
    

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20. @MarcoTroisi
    WHEN TO USE IT
    1. Microservices
    2. Not always on
    3. Event-based
    I’VE SEEN SERVERLESS
    

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21. @MarcoTroisi
    WHEN NOT
    TO USE IT
    I’VE SEEN SERVERLESS
    

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22. @MarcoTroisi
    WHEN NOT TO USE IT
    1. If not on the cloud
    I’VE SEEN SERVERLESS
    

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23. @MarcoTroisi
    WHEN NOT TO USE IT
    1. If not on the cloud
    2. If you don’t want to be
    vendor-locked
    I’VE SEEN SERVERLESS
    

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24. @MarcoTroisi
    OUR TRANSITION
    TO SERVERLESS
    I’VE SEEN SERVERLESS
    

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25. @MarcoTroisi
    OUR TRANSITION TO SERVERLESS
    We identified the 

    easiest components 

    that we could port

    (but also, biggest “bang for the buck”)
    I’VE SEEN SERVERLESS
    

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26. @MarcoTroisi
    OUR TRANSITION TO SERVERLESS
    We established a roadmap

    and migrated 

    everything else
    I’VE SEEN SERVERLESS
    

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27. @MarcoTroisi
    OUR TRANSITION TO SERVERLESS
    We decided to use

    everything that

    the cloud had to offer
    I’VE SEEN SERVERLESS
    

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29. @MarcoTroisi
    WHAT WE LEARNT
    I’VE SEEN SERVERLESS
    

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30. @MarcoTroisi
    WHAT WE LEARNT
    Big cost reduction
    (bill was slashed by 90%!)
    I’VE SEEN SERVERLESS
    

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31. @MarcoTroisi
    WHAT WE LEARNT
    Cold starts can be an issue
    Solutions:
    - CloudWatch Events
    - More memory
    I’VE SEEN SERVERLESS
    

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32. @MarcoTroisi
    WHAT WE LEARNT
    Cold starts after
    deployments are even
    worse
    I’VE SEEN SERVERLESS
    

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33. @MarcoTroisi
    WHAT WE LEARNT
    12-factor application
    Or 7 ½-factor
    I’VE SEEN SERVERLESS
    

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34. @MarcoTroisi
    WHAT WE LEARNT
    “All in” cloud

    is better than

    half-hearted cloud
    I’VE SEEN SERVERLESS
    

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35. @MarcoTroisi
    WHAT WE LEARNT
    Infrastructure as code
    I’VE SEEN SERVERLESS
    

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36. @MarcoTroisi
    WHAT WE LEARNT
    CI/CD
    I’VE SEEN SERVERLESS
    

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37. @MarcoTroisi
    WHAT WE LEARNT
    CI/CD
    Without automation, good luck!
    I’VE SEEN SERVERLESS
    

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38. @MarcoTroisi
    I’VE SEEN
    SERVERLESS 

    AND I’VE COME BACK
    TO TELL YOU
    ALL ABOUT IT
    

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40. @MarcoTroisi
    THANK YOU
    VERY MUCH!
    marcotroisi.com
    @MarcoTroisi
    servisbot.com
    

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