Spring Boot is a very popular Java framework for creating standalone, production ready web applications. In this series of blog posts, we are going to walk through using Spring Boot 2.0 to build and deploy a simple CRUD REST application.

We’re going to make use of modern Spring technologies such as Spring Security Oauth2 JOSE, Spring Cloud AWS, and Spring Actuator, powered by Micrometer.

We’re going use Docker to package up the application for deployment, and to orchestrate the various dependencies we have in our development pipeline.

The source code for the project we will be building is available here.

The topics we’re going to cover are listed below.

Docker

We’ll start by talking about how we orchestrate the development environment, to get us up and running with MariaDB and Redis effortlessly.

• Building Docker images with Spotify’s Dockerfile Maven plugin.
• DRY principle with Docker compose.

Spring Boot

Once we have our development environment up and running, we’ll move over to talking about how we actually build the application using Spring Boot.

• Spring as a Java container abstraction - switching to Undertow.
• Using application.yml as the interface to Docker compose.
• OIDC (OAuth2) authentication with Spring Security JOSE and Google.
• Using Swagger with SpringFox.
• Spring Data JPA with:
  • Liquibase
  • QueryDSL
  • Auditing
• Building a media server with ResourceHttpRequestHandler.
  • Using Spring Cloud AWS for S3 storage.
• Using Spring Cloud AWS with Spring Boot Actuator for putting metrics into CloudWatch.
• Using Spring Session with Redis for Spring Security authentication state.
  • Configuration to support AWS ElastiCache.