Micro services as architectural concept

What are micro services, some history and how we use it in Aimeos

Transcript

1. Micro services as
   architectural concept
   

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2. Previous applications
   architectures
   

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3. “Spaghetti”
   

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4. Function 2
   Function 3
   Function ...
   Application
   Function 5
   Function 4
   Function 1
   

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5. Objekt oriented
   

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6. Object 1
   - Data
   - Methods
   Object 1
   - Data
   - Methods
   Object ...
   - Data
   - Methods
   Application
   

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7. Layer model
   

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8. Layer 1.3
   Layer 1.2
   Layer 1.1
   Layer 2.2
   Layer 2.1
   Application
   

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9. Similarity:
   Deployment monoliths
   

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10. Micro services
    

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11. Single, independent
    applications
    

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12. Layer 2.2
    Layer 2.1
    Layer 1.3
    Layer 1.2
    Layer 1.1
    Application 1 Application 2
    

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13. Requirement:
    Domain driven design
    

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14. Layer 1.3
    Layer 1.2
    Layer 1.1
    Layer 2.2
    Layer 2.1
    Layer 3.4
    Layer 3.4
    Layer 3.1
    Layer 3.2
    Domain 1 Domain 3 Domain 3
    

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15. Micro services
    in “real life”
    

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16. Domäne 3
    Domain 1
    Domain 2
    Domain 5
    Domain 4
    Domain 3
    Bounded contexts
    

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17. Interfaces and
    data exchange
    

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18. Domain 1
    Domain 5
    Format?
    Versioning?
    Compatibility?
    Fault tolerance?
    Number of calls?
    Common
    data model?
    

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19. Shared kernel
    

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20. Domain 1
    Data model
    Domain 3
    

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21. Best case
    ● Work independently from each other
    ● Extendable by different teams
    ● Exchangeable
    ● Scalable
    

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22. Worst case
    ● Erros are even harder to find
    ● Increased total complexity
    ● Performance suffers
    ● Cascading outages
    

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23. Aimeos
    

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24. E-Commerce components
    for integration into
    applications
    

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26. Layer model
    

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27. Config
    Data access
    JQAdm JQuery
    Frontend
    client
    List
    ...
    Basket
    Admin
    controller
    Frontend
    controller
    PHP
    I18n
    Config
    Database
    View
    Logger
    Session
    Bandend application
    Frontend application
    ExtAdm
    JsonAdm
    ExtJS
    JSON API
    

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28. Data domains
    

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29. Product
    Catalog
    Index
    Order
    ...
    16 Datendomänen
    Data access
    

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30. Separation into stacks
    for micro services
    

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31. Config
    List
    Client
    ...
    Client
    Cntl
    ...
    Cntl
    Product
    ...
    Order
    ...
    Basket
    By domain
    

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32. Frontend
    client
    List
    ...
    Basket
    Frontend
    controller
    Data access
    By use case
    Config
    JQuery
    JQAdm
    ExtAdm
    JsonAdm
    Cntl
    Cntl
    Cntl
    Data
    Data
    Data
    ExtJS
    JSON API
    

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33. Frontend
    client
    List
    ...
    Basket
    Frontend
    controller
    Data access
    With shared kernel
    JQuery
    JQAdm
    ExtAdm
    JsonAdm
    Admin Controller
    ExtJS
    JSON API
    

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34. As Composer packages
    ● Aimeos core (shared kernel)
    ● HTML client (frontend)
    ● JQAdm (JQuery admin)
    ● ExtAdm (ExtJS admin)
    ● JsonAdm (JSON admin API)
    ● Jobs (cronjob controller)
    

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35. Open
    questions
    

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36. Further separation?
    Frontend?
    Shared admin controller?
    

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37. Best size for
    micro services?
    

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38. Aimeos
    aimeos.org
    Twitter: @aimeos
    facebook.com/Aimeos
    

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