Dockerfile build strategy disabled by runtime() specification

[shaunsmith]

Steps to Reproduce

Create a function:

$ mn create-function-app myfunction --features oracle-function
$ cd myfunction
$ ./gradlew dockerfile
Dockerfile written to: ...myfunction/build/docker/Dockerfile
$ cat ...myfunction/build/docker/Dockerfile

Result:

FROM fnproject/fn-java-fdk:jre11-latest
WORKDIR /function
RUN mkdir -p /function/app/resources
COPY layers/libs/*.jar /function/app/
COPY layers/resources/* /function/app/resources/
COPY layers/application.jar /function/app/
CMD ["myfunction.Function::handleRequest"]

NOTE correct FROM fnproject/fn-java-fdk:jre11-latest

Edit build.gradle to add runtime("netty") to micronaut{...} section and regenerate Dockerfile.

micronaut {
    runtime("jetty")
    testRuntime("junit5")
    processing {
        incremental(true)
        annotations("myfunction.*")
    }
}

$ ./gradlew dockerfile
Dockerfile written to: /Users/shaun/tmp/myfunction/build/docker/Dockerfile
$ cat /Users/shaun/tmp/myfunction/build/docker/Dockerfile

Result:

FROM openjdk:16-alpine
WORKDIR /home/app
COPY layers/libs /home/app/libs
COPY layers/resources /home/app/resources
COPY layers/application.jar /home/app/application.jar
EXPOSE 8080
ENTRYPOINT ["java", "-jar", "/home/app/application.jar"]

The specified build.gradle Dockerfile build strategy was silently ignored.

dockerfile {
    buildStrategy.set(io.micronaut.gradle.docker.DockerBuildStrategy.ORACLE_FUNCTION)
    defaultCommand.set("myfunction.Function::handleRequest")
}

Expected Behaviour

Error or warning that declared Dockerfile strategy is not being used/overridden/something?

Environment Information

• Operating System: macOS 10.15 (Catalina)
• Micronaut Version: CLI version 2.5.4 and 2.5.5
• JDK Version: GraalVM Enterprise 20.3.1.2