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Dockerized Spring Boot application for Server side load balancing using Zuul and Eureka.

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Server Side Load Balancing using Zuul and Eureka Spring boot application

Dockerized Spring Boot application for Server side load balancing using Zuul and Eureka.

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development purposes. See running for notes on how to run the project on a system.

Prerequisites

  1. Clone the project to your local environment:

    git clone https://github.com/ankitrajput0096/Server_Side_LoadBalancing_Using_Zuul_and_Eureka
    
  2. You need Docker to be installed:

    Windows:

    https://download.docker.com/win/stable/Docker%20for%20Windows%20Installer.exe

    Mac:

    https://download.docker.com/mac/stable/Docker.dmg

    Ubuntu:

    https://docs.docker.com/install/linux/docker-ce/ubuntu/

Installing

Once you have docker installed on your environment, install the project dependencies via:

Build docker Image:

docker-compose build

Running

Start docker:

docker-compose up

Or

Start docker with scaled up services:

docker-compose up --scale clientone=3 --scale clienttwo=3

NOTE:

Can scale up clientone and clienttwo services to max instances of 5. If you want to scale even higher, then increase the port range in docker-compose file.

Your Zuul proxy server should be now running on https://localhost:8000, ClientOne server should be now running on https://localhost:8080-8085 and ClientTwo server should be now running on https://localhost:8086-90 and Eureka server cluster should be now running on https://localhost:9001, https://localhost:9002, https://localhost:9003

Get an access to all exposed API's with Postman

  1. Install Postman (https://www.getpostman.com)
  2. Import Postman collection from the Zuul_Eureka_SpringBoot.postman_collection.json file
  3. Enjoy !!

NOTE : To see server side load balancing observe terminal logs of docker-compose. When trying to hit same endpoint multiple times parallely.

Built With

  • Spring Boot - Spring Boot 2
  • Maven - Dependency Management
  • Docker - For containerization of application
  • Zuul - For Routing and Filtering using Zuul
  • Eureka - For Eureka admin and client

Contributing

If you have any improvement suggestions please create a pull request and I'll review it.

Authors

  • Ankit Rajput - Initial work - Github

License

This project is licensed under the MIT License

Acknowledgments

  • Big thanks to Pivotal for Spring Boot framework, love it!

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