Facing the Challenges of Microservice Development in the Cloud

Transcript

1. 1
   Facing the Challenges of Microservice
   Development in the Cloud
   Sebastian Daschner
   Lead Java Developer Advocate
   

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2. 2
   Sebastian Daschner
   • Lead Java Developer Advocate @ IBM
   • Consultant, trainer, book author
   • JCP Expert Group member & Jakarta EE Committer
   • Java Champion
   • Oracle Developer Champion (Alumni)
   • JavaOne Rockstar speaker
   

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3. 3
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   Cloud-native microservices
   Why should we care?
   

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4. 4
   Java Enterprise today
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   Still widely used in enterprises
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   Known APIs & great developer experience
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   Missing parts in a cloud-native, microservice world
   

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5. 5
   Java Enterprise: What’s missing
   ●
   Resiliency
   ●
   Monitoring
   ●
   Distributed tracing
   ●
   Injectable configuration
   

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6. 6
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   MicroProfile
   An alternative?
   

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7. 7
   MicroProfile: An alternative?
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   Java Enterprise developer experience
   ●
   Addresses missing parts
   ●
   Enough for more complex applications?
   

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8. 8
   MicroProfile: What’s missing
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   Persistence, JPA, JTA
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   Concurrency Utils
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   EJB (Timers, Asynchronous)
   

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9. 9
   Java Enterprise: Options
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   Java EE 8 / Jakarta EE only
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   MicroProfile 2.0 only
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   Java EE plus MicroProfile additions
   

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10. 10
    Java EE plus MicroProfile
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    Proven technology, known APIs
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    MicroProfile projects fills the gaps
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    E.g. Java EE plus MP Config, Fault Tolerance, Metrics,
    OpenTracing
    

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    Example: Enterprise coffee
    

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    What else is missing?
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    Observability (technical, infrastructure)
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    Service discovery
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    Traffic routing
    

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    Kubernetes & Istio
    Let’s go cloud native
    

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    Customizing the runtime
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    Only including the required standards & runtime features
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    Required?
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    Trade-off between time & material spent on either development or
    runtime
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    Optimize the moving parts (deployment artifacts) first
    

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15. 15
    Servers supporting MicroProfile
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    Open Liberty 18.0.0.3
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    Payara 5.184
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    Tom EE 8.0
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    Wildfly 14.0.1.Final
    

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    Key takeaways
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    Use known APIs
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    Think of MicroProfile as extensions for Java EE
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    Development model that fits your need on application side
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    Optimize deployment artifacts before runtime
    

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17. 17
    Future: MicroProfile as Incubator?
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    Crafting vendor-independent soon-to-be standards
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    Providing what's missing from future Jakarta EE
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    Sharing design principles with Jakarta EE
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    Defining a reasonable process
    

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18. 18
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    Cloud native Java
    What about startup times & resource consumption?
    

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19. 19
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    Eclipse OpenJ9
    An alternative runtime?
    

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20. 20
    OpenJ9
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    OSS under Eclipse Foundation
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    Performance optimizations (Start-up time, ramp-up, footprint)
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    Free usage & security updates
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    Commercial support (optional)
    

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21. 21
    Thank You For Your Attention!
    ●
    sebastian-daschner.com
    ●
    @DaschnerS
    ●
    Book: Architecting Modern Java EE Applications
    ●
    https://github.com/sdaschner/coffee/tree/microservice-cloud-
    webinar
    

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