Spring Boot Thin Jar Builder for Running Java Microservices

| August 16, 2018

Today we’d like to continue the topic about building microservices and move from Fat (Uber) Jar to Thin Jar for Spring Boot projects. Thin Jar represents a compiled and packaged application code (business logic) of the project together with the third party libraries it depends on. Compared to Fat, it does not contain application server runtime by default, so the size of a Thin archive is much smaller. The runtime and dependencies are automatically downloaded during the first launch and stored locally in ~/.m2/repository.

To showcase the process of building Thin Jar for running microservice architecture, we’ll use a pre-configured package of Maven and popular Spring Boot framework inside Java Engine.maven software

Installation of Spring Boot Thin Jar Builder

Get started by accessing Jelastic dashboard. Find the Spring Boot Thin Jar Builder in the Marketplace and click Install.java spring boot

Or you can Import the required manifest from GitHub using the link:

https://github.com/jelastic-jps/spring-boot/blob/master/microservice-thin-jar/manifest.jpsbuilding microservices

If required, change the installation settings such as environment name or Git repository link to a custom Spring Boot project. Then press Install.spring boot microservices tutorial

When the installation and building of the project are completed, a corresponding message appears. You still need to wait a few minutes for deploy to be finished (feel free to track the process in Tasks panel). In the default implementation, the deployment is done under api/greeting context.spring boot microservices example

In a few minutes, you can make sure that application is up and running by pressing Open in browser button.create java projectTopology for Spring Boot Thin looks as in the picture below.
java maven tutorial
That’s all, feel free to run as many microservices as required for your project without any complexity while building them. In the upcoming articles, we’ll cover the steps of getting Fat, Thin or Skinny Jar files for Thorntail, Vert.x and DropWizard applications. Stay tuned and get more benefits from microservice architecture with Jelastic PaaS.

Related Articles

Building Microservices with Spring Boot Fat (Uber) Jar

How to Build and Deploy Vert.x Fat or Thin Microservice Application to the Cloud

Dropwizard Automatic Build and Deploy to Cloud-Native Microservices

Thorntail Fat, Thin and Skinny Approach for Running Microservice Applications