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Documentation for gcr.io/distroless/java

Image Contents

This image contains a minimal Linux, OpenJDK-based runtime.

Specifically, the image contains everything in the base image, plus:

  • Temurin OpenJDK 17 (gcr.io/distroless/java17-debian13) and its dependencies.
  • Temurin OpenJDK 21 (gcr.io/distroless/java21-debian13) and its dependencies
  • Temurin OpenJDK 25 (gcr.io/distroless/java25-debian13) and its dependencies

Usage

The entrypoint of this image is set to the equivalent of "java -jar", so this image expects users to supply a path to a JAR file in the CMD.

Add another JAVA version

To support a new JAVA version you need to do the following steps:

  • Add the new version to ADOPTIUM_DEB_PER_DISTRO in java/BUILD.
  • Add the new version to JAVA_MAJOR_VERSIONS in java/config.bzl.
  • Add two yaml files in the java/testdata folder to prepare the tests, you can take inspiration on the other files.

You can then ensure everything works on this folder with bazel build //java:...