SpringBoot gradle bootBuildImage --verboseLogging=true results in Unknown command-line option '--verboseLogging'

With 2.3.1.RELEASE:

./gradlew bootBuildImage --verboseLogging=true

Results in:

Unknown command-line option '--verboseLogging'

Seems this should work: https://docs.spring.io/spring-boot/docs/2.3.1.RELEASE/gradle-plugin/reference/html/#build-image-customization

Comment From: jamesward

Oh, actually it looks like that isn't exposed as a command line param.

Comment From: jamesward

BTW, it would be nice to have a sample for this cause it took some figuring:

import org.springframework.boot.gradle.tasks.bundling.BootBuildImage

tasks.getByName<BootBuildImage>("bootBuildImage") {
        isVerboseLogging = true
}

Comment From: snicoll

@jamesward there is an example right below the section you've referenced. Granted, it's using builder rather than verboseLogging but that should cover it. Have I missed something?

Comment From: jamesward

I had to figure out the import and that it needs to be isVerboseLogging instead of verboseLogging. So not just a copy & paste :)

Comment From: wilkinsona

The Gradle Plugin documentation's section on building OCI images hopefully helps with the import. It contains a link to the javadoc for BootBuildImage.

The need for the is prefix is a quirk of Kotlin. With the Groovy DSL the more intuitive verboseLogging = true will work.