isabella232 / step-jlink

step-jlink

An official Wercker step for running Jlink.

This step creates a custom Java runtime from a given set of Java modules of an existing Java runtime.

The location of the existing Java runtime must be declared in the JAVA_HOME environment variable.

This step can be used to create a smaller custom Java runtime containing only the Java modules required to either build a Java application or run a Java application.

Options

• add_modules (default: java.base) a comma separated list of Java modules to be included in the custom Java runtime (any dependent modules will also be implicitly included). To list the set of modules of a Java runtime use the command java --list-modules`.

• compress (default: 2) the compression level for resources. A value of 0 means no compression. A value of 1 means constant strings are shared. A value of 2 means ZIP compression is used

• output (default: javaruntime) the directory under which the contents of the custom Java runtime will be placed

Supplying no options will create the smallest possible Java runtime that contains just the java.base module.

Example

---

box:
  id: quay.io/paulsandoz/alpine-jdk-9-maven
  tag: 9-ea-181
  cmd: /bin/sh
  registry: quay.io

build:
  steps:
    - wercker/[email protected]

Contributing to this repository

Oracle welcomes contributions to this repository from anyone. Please see CONTRIBUTING for more information.