Azul Zulu CA Docker official

This repository contains the Dockerfiles and build definitions used to produce the official Azul Zulu images on Docker Hub.

It acts as the canonical source referenced from the library/azul-zulu metadata, which Docker Hub uses to build and publish the images.

Purpose

• Provide a single source of truth for all Azul Zulu Dockerfiles.
• Define how official Azul Zulu images are built for different:
  • Java versions (e.g. 8, 11, 17, 21, 25, …)
  • Variations like JDK / JRE / headless etc.
  • Linux distributions (e.g. Alpine, Debian, Rocky Linux, …)
• Ensure that what is built on Docker Hub matches what is defined in this repository.

Repository Structure

The repository is organized by Java major version and image flavor. Typical layout:

• 8/, 11/, 17/, 21/, 25/, … – Java major versions
• Within each version:
  • Directories for different flavors / package types
  • Further subdirectories per base distribution
  • A Dockerfile in each leaf directory

Each leaf directory corresponds to one concrete image/tag built on Docker Hub.

Local Usage

Although the primary consumer of this repo is the Docker Hub build system, you can also build images locally for testing or development.

Example:

git clone https://github.com/AzulSystems/azul-zulu-images.git
cd azul-zulu-images

# Navigate to the desired version/flavor/distro directory, for example:
cd 21/jdk/alpine3.22

docker build -t azul/zulu21-jdk-alpine:local-test .
docker run --rm azul/zulu21-jdk-alpine:local-test java -version