Use the follow command to build a java builder.

hack/build.sh --with-stack --java-version < java_version > --docker-registry < registry >

This command will create three image:

< REGISTRY >/buildpacks-java< java_version >-run:v1
< REGISTRY >/buildpacks-java< java_version >-build:v1
< REGISTRY >/builder-java:v2-< java_version >

Parameters

• with-stack - If specified, it will also build the build image and run image too.
• java-version - The version of java, known value are 11, 16, 17, 18.
• docker-registry - The docker registry where the image pushed to, default is openfunction.
• create-builder-only - Only create the builder directory, and do not build image. The builder directory will be under builders/java.
• build-image - The image used to build builder.
• run-image - The image used to run the function.
• out-image - The name of generated builder image.
• push-image - If specified, it will push the image to the registry.