custom-rockcraft

Introduction

This sample demonstrates deploying a rock with a custom rockcraft.yaml that defines dependency deployment.

maven-dependency-plugin is used to copy dependencies to target/dependencies/jars. rockcraft.yaml defines a part that copies those dependencies to target image /jars directory:

parts:
  deploy-dependencies:
    plugin: dump
    source: dependencies
    source-type: local

The maven/rockcraft/runtime is overriden to ensure that runtime is created after dependencies are copied in the target image:

  maven/rockcraft/runtime:
    after:
      - deploy-dependencies
      - maven/rockcraft/dump
      - maven/rockcraft/deps

Building

Install the plugin if needed:

(cd ../../../ && mvn install)

Install docker if needed:

snap install docker

Build the rock. The rockcraft.yaml will be found in target/rockcraft.yaml and the rock file under target/rock:

mvn install

This will build the rock image and push it to the local docker daemon

Running

Run the application:

docker run custom-rockcraft-sample exec /usr/bin/java -jar jars/custom-rockcraft-sample-1.0-SNAPSHOT.jar

This will output:

Hello World!{Hello=World}