20k mRuby devices in Production

One of the biggest cases of mruby in world. I've changed an entire solid runtime for mRuby, and for 3 years, even if is not recommend, we've been running mRuby in production reaching 20k machines and billons of dollars in payment transactions. We faced a lot of problems, but even more benefits adopting mRuby. This talk is about those topics, like:

Runtime and application Update/Upgrade
Communication configuration and intelligence
Payment transaction security and cryptography
Concurrency
Code sharing between CRuby and mRuby
Memory management and leaks
Open Source

Transcript

1. @scalone
   20k mRuby devices
   Production
   Thiago Scalone - @scalone
   

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2. @scalone
   こんばんは
   私の名前はThiago Scalone です よろしくお願いします！
   私はブラジルのソフトウェアエンジニアです
   

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3. @scalone
   

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4. @scalone
   Speak Portuguese, not Spanish
   Not everyone likes socker/football
   Some people like contact and hugs
   We do Party and drink
   We work hard
   Brazilian
   

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5. @scalone
   @scalone
   Free hugs!
   

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6. The digital payment acquirer
   @scalone
   

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7. @scalone
   

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8. @scalone
   

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9. @scalone
   

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10. @scalone
    

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11. @scalone
    

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12. Payment acquirers are very inefficient

    

    Most using outdated technology

    

    Incapable of offering digital products
    @scalone
    

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13. @scalone
    

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14. @scalone
    @scalone
    

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15. @scalone
    @scalone
    

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16. @scalone
    @scalone
    

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17. @scalone
    @scalone
    

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18. @scalone
    @scalone
    

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19. @scalone
    ERC20
    @scalone
    

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20. @scalone
    ERC20
    

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21. @scalone
    Demo application creation/deploy
    Runtime and application Update/Upgrade
    Communication configuration and intelligence
    Payment transaction security and cryptography
    Code sharing between CRuby and mRuby
    Concurrency / Memory management and leaks
    Demo chip/pin Payment Transaction
    Topics
    

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22. @scalone
    Demo
    Thiago Scalone - @scalone
    

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23. @scalone
    @scalone
    

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24. @scalone
    CLI
    @scalone
    

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25. @scalone
    PROJECT
    CLI
    @scalone
    

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26. @scalone
    PROJECT
    COMPILE
    CLI
    @scalone
    

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27. @scalone
    PROJECT
    COMPILE
    DEPLOY
    CLI
    @scalone
    

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28. @scalone
    PROJECT
    COMPILE
    DEPLOY
    CLI
    RUN
    @scalone
    

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29. @scalone
    PROJECT
    COMPILE
    DEPLOY
    CLI
    RUN
    @scalone
    

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30. @scalone
    PROJECT
    COMPILE
    DEPLOY
    CLI
    RUN
    mRuby
    mruby-cli
    da_funk
    @scalone
    

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31. @scalone
    Created by Matz
    Small
    Cross-compilation / ANSI C
    Modular
    No gems, mrbgems static compilation
    .mrb
    https://github.com/mruby/mruby
    mRuby
    

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32. @scalone
    CLI apps framework
    Created and maintained by hone, zzak and toch
    Power of mruby to generate standalone binary
    Linux, Windows, and OS X
    Docker Compose
    https://github.com/hone/mruby-cli
    https://github.com/cloudwalkio/cloudwalk
    mruby-cli
    

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33. @scalone
    Open Source IOT Embedded Framework
    Created by CloudWalk
    Adopt adapter pattern to hardware interface
    Compilation and packaging tools
    Helpers
    https://github.com/cloudwalkio/da_funk
    da_funk
    

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34. @scalone
    lib/device/
    !"" application.rb
    !"" audio.rb
    !"" crypto.rb
    !"" display.rb
    !"" io.rb
    !"" magnetic.rb
    !"" network.rb
    !"" printer.rb
    !"" runtime.rb
    !"" system.rb
    #"" version.rb
    class Device
    class Audio
    def self.adapter
    Device.adapter::Audio
    end
    def self.beep(tone, seconds)
    milli = seconds * 1000
    adapter.beep(tone, milli)
    end
    end
    end
    da_funk
    da_funk
    

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35. @scalone
    @scalone
    GPRS/3G/WIFI
    Persistent Connection
    TCP + TLS 1.2
    WebSocket
    Download in chunks
    

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36. @scalone
    Push Notification / Transaction / Package Download
    Past ISO8583 and Serfx :(
    Ping 6 bytes and Data Consumption (2mb limit per month)
    Inflate/deflate
    Heroku
    Implemented by DaFunk
    WebSocket
    

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37. @scalone
    AT Command Interface Ruby
    Communication
    

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38. @scalone
    AT Command Interface Ruby
    Attach
    Connection Management
    Communication
    

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39. @scalone
    Security and Crypto
    

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40. @scalone
    PTS Terminal
    3DES + Working Key
    PIN / DATA DUKPT (Derived Unique Key Per Transaction)
    (SDK bind)
    SSL Library mbed TLS / PolarSSL
    hKps:/
    /github.com/luisbebop/mruby-polarssl
    HMAC, SHA1, MD5 and etc on mruby suite

    

    Security and Crypto
    

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41. @scalone
    PTS Terminal
    3DES + Working Key
    PIN / DATA DUKPT (Derived Unique Key Per Transaction)
    (SDK bind)
    SSL Library mbed TLS / PolarSSL
    hKps:/
    /github.com/luisbebop/mruby-polarssl
    HMAC, SHA1, MD5 and etc on mruby suite

    

    Security and Crypto
    

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42. @scalone
    Security and Crypto
    

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43. @scalone
    Take advantage of Bundler
    Rake tasks
    Adopt the same code in some scenarios ISO8583
    CRuby + mRuby
    

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44. @scalone
    Gem Spec
    DaFunk compilation
    CRuby + mRuby
    

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45. @scalone
    Memory and leaks
    

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46. @scalone
    Memory and leaks
    

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47. @scalone
    Concurrency
    

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48. @scalone
    Status Bar Update
    Connection Management
    Sharing memory for communication by controlled queue
    Concurrency
    

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49. @scalone
    CloudWalk mruby gem mruby-context
    C structure implementation using semaphores
    Concurrency
    

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50. @scalone
    MRuby Libraries to make the runPme works
    h"ps:/
    /github.com/cloudwalkio/mruby-da-funk
    IOT Framework
    h"ps:/
    /github.com/cloudwalkio/da_funk
    TLV Parser (Payment TransacPon)
    h"ps:/
    /github.com/scalone/funky-tlv
    CloudWalk CLI
    h"ps:/
    /github.com/cloudwalkio/cloudwalk
    SSL Library mbed TLS / PolarSSL bind
    h"ps:/
    /github.com/luisbebop/mruby-polarssl
    Open Source
    

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51. @scalone
    MRuby EMV Interface (Payment TransacPon)
    h"ps:/
    /github.com/cloudwalkio/mruby-emv
    RIPEMD-160 hash
    h"ps:/
    /github.com/scalone/mruby-ripemd
    QRCode generaPon
    h"ps:/
    /github.com/scalone/mruby-qrcode
    Miniz bind to ZIP/UNZIP inflate/deflate
    h"ps:/
    /github.com/scalone/mruby-miniz
    HMAC hash
    h"ps:/
    /github.com/scalone/mruby-hmac
    Open Source
    

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52. @scalone
    PAX Terminals
    h"ps:/
    /github.com/cloudwalkio/robot_rock
    Open Source TODAY
    

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53. @scalone
    Demo
    Thiago Scalone - @scalone
    

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54. @scalone
    20k mRuby devices
    Production
    Thiago Scalone - @scalone
    

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55. @scalone
    40.375 Devices
    Production
    Thiago Scalone - @scalone
    

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56. @scalone
    40.375 Devices
    $ +1bi 50% mRuby
    Production
    Thiago Scalone - @scalone
    

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57. @scalone
    mRuby in
    Production
    Thiago Scalone - @scalone
    

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58. @scalone
    in mRuby
    We Trust
    Thiago Scalone - @scalone
    

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59. @scalone
    Thank you
    We Trust
    Thiago Scalone - @scalone
    

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