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Micronaut - Productivité développeur

Micronaut - Productivité développeur

Cédric Champeau

May 11, 2022
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  1. Developer Productivity
    How Micronaut is built
    Cédric Champeau
    Micronaut Developer
    Oracle Labs

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  2. • Working at Oracle Labs on Micronaut

    Main focus on build plugins and dev
    productivitity
    • Formerly working at Gradle Inc
    • Author of static compiler of Groovy
    • Amateur astronomer

    @CedricChampeau

    https://www.astrobin.com/users/melix/
    About me
    Copyright © 2022, Oracle and/or its affiliates
    micronaut.io github.com/micronaut-projects/micronaut-core
    https://melix.github.io/blog/2022/05/astro-twitch.html

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  3. • Micronaut is focused on modern
    architectures like Serverless and
    Microservices
    • Also a complete framework for any type of
    application
    • Lightweight, reactive (HTTP Client/Server
    based on Netty)
    • Annotation processor to compute framework
    infrastructure at compile time
    Micronaut
    Copyright © 2022, Oracle and/or its affiliates
    micronaut.io github.com/micronaut-projects/micronaut-core

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  4. Micronaut = Build Time Framework Infrastructure
    Copyright © 2022, Oracle and/or its affiliates
    Micronaut computes:
    • All dependency & configuration injection
    • Annotation metadata, meta-annotations
    • AOP proxies
    • Bean introspections
    • And all other framework infrastructure
    • Reflection, runtime proxy, and dynamic
    classloader free

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  5. Micronaut is Open Source
    Copyright © 2022, Oracle and/or its affiliates
    • Hosted at GitHub
    • Managed by the Micronaut Foundation
    • 92 Git repositories

    ~60 modules
    • Each project versioned independently

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  6. Micronaut releases
    Copyright © 2022, Oracle and/or its affiliates
    • Core version drives a “Micronaut release”
    • Micronaut Core BOM includes many
    Micronaut modules
    • Gradle and Maven plugin integrate with the
    BOM

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  7. GitHub Workflows
    Copyright © 2022, Oracle and/or its affiliates
    • Micronaut Project Template

    Used to create new modules

    Defines project “template”

    Defines files to be sync’ed on all projects

    Shared configuration (checkstyle rules, ...)

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  8. GitHub Workflows: custom GitHub Actions
    Copyright © 2022, Oracle and/or its affiliates
    See https://github.com/micronaut-projects/github-actions
    - release note generation
    - BOM updates
    - Micronaut Launch deployment helpers

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  9. GitHub Workflows: one-click releases
    Copyright © 2022, Oracle and/or its affiliates

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  10. Micronaut Build
    Copyright © 2022, Oracle and/or its affiliates
    • An internal plugin suite
    • Models how Micronaut modules are built
    • Configures common behavior

    Quality checks

    Sonar

    Publication to Maven Central

    Build cache

    Test selection

    ...

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  11. Gradle “convention plugins”
    Copyright © 2022, Oracle and/or its affiliates
    • For Maven users, think of “composite parent POMs”
    • Take care of shared configuration, aka conventions
    • Different plugins

    From Micronaut Build Plugins (internal)
     io.micronaut.build.internal.module : typical Micronaut module, with annotation
    processing enabled, published on Maven Central, etc.
     io.micronaut.build.internal.bom: a “platform”, or BOM for Maven

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  12. Copyright © 2022, Oracle and/or its affiliates
    Demo: Writing a convention plugin

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  13. Gradle “convention plugins”
    Copyright © 2022, Oracle and/or its affiliates
    Root project:
    plugins {
    id("io.micronaut.build.internal.docs")
    id("io.micronaut.build.internal.quality-reporting")
    }
    Module:
    plugins {
    id("io.micronaut.build.internal.aot-project")
    }
    description = "Micronaut AOT API, for integration in build/CLI tools"
    dependencies {
    implementation(projects.aotCore)
    }

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  14. Gradle “convention plugins”
    Copyright © 2022, Oracle and/or its affiliates
    “Local” convention plugin:
    // build-logic/src/main/groovy/io.micronaut.build.internal.aot-project.gradle
    plugins {
    id "io.micronaut.build.internal.base-module"
    }
    micronautBuild {
    enableProcessing = false
    enableBom = false
    }

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  15. Gradle “convention plugins”
    Copyright © 2022, Oracle and/or its affiliates
    • For Maven users, think of “composite parent POMs”
    • Take care of shared configuration, aka conventions
    • Different plugins

    From Micronaut Build Plugins (internal)
     io.micronaut.build.internal.module : typical Micronaut module, with annotation
    processing enabled, published on Maven Central, etc.
     io.micronaut.build.internal.bom: a “platform”, or BOM for Maven

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  16. Gradle task wiring
    Copyright © 2022, Oracle and/or its affiliates
    • Forget about Maven lifecycle
    • In Gradle, lifecycle is dynamic
    A task
    (compileJava, test, ...)
    inputs
    outputs
    https://melix.github.io/blog/2021/10/gradle-quickie-dependson.html
    https://melix.github.io/blog/2022/01/understanding-provider-api.html

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  17. Example: generating BOMs
    Copyright © 2022, Oracle and/or its affiliates

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  18. Gradle “convention plugins”
    Copyright © 2022, Oracle and/or its affiliates
    • Each project may declare specific modules

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  19. Gradle Entreprise : Build Scans
    Copyright © 2022, Oracle and/or its affiliates
    Visit https://ge.micronaut.io

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  20. Gradle Entreprise : Build Scans
    Copyright © 2022, Oracle and/or its affiliates
    Visit https://ge.micronaut.io

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  21. Gradle Enterprise: avoidance savings
    Copyright © 2022, Oracle and/or its affiliates

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  22. Gradle Entreprise : Build Cache
    Copyright © 2022, Oracle and/or its affiliates
    Visit https://ge.micronaut.io

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  23. Gradle Entreprise : Flaky Test Detection
    Copyright © 2022, Oracle and/or its affiliates
    Visit https://ge.micronaut.io

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  24. Gradle Enterprise: predictive test selection
    Copyright © 2022, Oracle and/or its affiliates

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  25. What about users?
    Copyright © 2022, Oracle and/or its affiliates
    • Gradle plugins are designed with the same composition model in mind
    ● io.micronaut.application = micronaut + application + docker + GraalVM
    ● io.micronaut.library = micronaut + library + docker + GraalVM
    ● io.micronaut.minimal.application = micronaut + application
    ● io.micronaut.minimal.library = micronaut + library
    • Declarative as much as possible

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  26. Copyright © 2022, Oracle and/or its affiliates
    26
    Thank you!
    Slides coming at @CedricChampeau

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