rockcraft

Introduction

This directory contains demos of Java rockcraft plugins and extensions. The demos build Spring Petclinic rock containers.

• basic builds without use of plugins. Use chisel slices to install Java runtime.
• jlink uses the Java jlink tool to create Java runtime.
• jlink-plugin install Java runtime using jlink-plugin.
• maven-plugin uses maven-plugin and jlink-plugin to build the application and install the runtime.
• spring-framework-extension demonstrate Spring Framework rockcraft extension

Install Rockcraft

Those samples require rockcraft features not yet merged into main. Please install rockcraft from this branch:

snap install snapcraft
git clone -b experimental-java https://github.com/vpa1977/rockcraft
cd rockcraft
# ensure that the installed version of rockcraft is removed
snap remove rockcraft
snapcraft
snap install --dangerous --classic *.snap

Building

cd <sample-directory>
rockcraft pack

This will produce a .rock file to be copied to the docker daemon.

rockcraft.skopeo copy oci-archive:<file>.rock docker-daemon:<image-name>:<image-tag>

Running

docker run <image-name>:<image-tag> -v