Image scaler

A cloud ready service designed to upload images and scale them based on a configuration.

Key features

• Dynamic configuration for scaling pictures.
• Session and messaging management supported by Redis.
• Status and health http endpoints for each process.
• Asynchronous scaling of images on a separate backend process.
• All data external to containers.
• MongoDB using GridFs as first storage layer.
• Api doc with swagger.

Required to run

• Java 1.8+ (Open JRE/JDK)
• Maven
• Docker compose

How to run

This project has a docker-compose.yml file. There is a nice compile and run script in the project root that you can use to run unit tests and bring up all the stack easily:

# First, param the name for your app. Second param the exposed port on your machine. 
./build_and_run.sh "Your desired service name" 8080

Go to http://your-host:port

How to run unit tests

mvn test

How to run integration tests

mvn integration-test

Architecture

A layered architecture with some domain driven design traits. It covers many best practices and patterns to ensure the good reading and scalability of code. It has a clever separation of all infrastructure layers like storage, messaging analyzers and more.

Api

An updated doc of the api can be reached through swagger at

http://your-host:port/swagger-ui.html

Environment

All the vars can be found in the docker-compose.yml file

Health and status checks

All can be found at:

http://your-host:port/actuator