image:https://travis-ci.org/lreimer/cloud-native-javaee.svg?branch=master["Build Status", link="https://travis-ci.org/lreimer/cloud-native-javaee"] image:https://img.shields.io/badge/license-MIT%20License-blue.svg["MIT License", link=https://github.com/lreimer/cloud-native-javaee/blob/master/LICENSE"]

= Cloud Native Java EE Showcase

This showcase demonstrates how to build a cloud native application using Java EE and selected open source components from Netflix OSS. The individual parts will later be deployed and run using Docker, Kubernetes and DC/OS.

image:architecture.png["Showcase Architecture"]

== Build instructions

In order to compile and run the examples you do not need much. A recent JDK8 needs to be available in your SEU.

$ ./gradlew clean build

== Running the Cloud Native Java EE showcase

=== Locally

The showcase can be run on your local machine as well as using Docker Compose, Minikube or Minishift.

$ docker-compose up -d --build

=== Google Container Engine

• Install the gcloud SDK for Mac (or Windows)
• Make sure you have a project with billing activated as well as the container engine management API
• Make sure you have kubectl installed, either using gcloud or using brew et.al.

$ gcloud config list project
$ gcloud config set compute/zone europe-west1-b
$ gcloud config set container/use_client_certificate False

$ gcloud container clusters create cloud-native-javaee --num-nodes=5 --enable-autoscaling --min-nodes=5 --max-nodes=7

$ gcloud container clusters describe cloud-native-javaee

$ gcloud auth application-default login
$ kubectl cluster-info

Once you are done, remember to delete the cluster again!

$ gcloud container clusters delete cloud-native-javaee

== References

• https://www.jcp.org/en/jsr/detail?id=236[JSR 236: Concurrency Utilities for Java EE 1.0]
• https://github.com/Netflix/Hystrix[Netflix/Hystrix]
• https://www.jcp.org/en/jsr/detail?id=339[JSR 339: JAX-RS 2.0]
• https://www.jcp.org/en/jsr/detail?id=346[JSR 346: Contexts and Dependency Injection for Java EE 1.1]
• https://github.com/Netflix/ribbon[Netflix/ribbon]

== Maintainer

M.-Leander Reimer (@lreimer)

== License

This software is provided under the MIT open source license, read the LICENSE file for details.