Configure LB Using Nginx

Happy New Year Everyone

This is the first blog post for the 2020, i Wish everyone will have healthy and wonderful year, may your dreams come true.

I post recently or let’s say Last Year about Full automation project using DevOps tools, and i didn’t to be honest except that much download and questions on that post. you can read it from here.

I decided to create new project but this time to show the power of DevOps and how to use it more in your daily Job, task or even configuration.

The idea of this project like the following:-

• You have two code, one Go based application, one Java-based application. Both are providing an HTTP service with the same endpoints.
• The Endpoints which is :-

Route	Description
/	A static site. Should not appear in the final setup as it is but redirect to /hotels.
/hotels	JSON object containing hotel search results
/health	Exposes the health status of the application
/ready	Readiness probe
/metrics	Exposes metrics of the application

We have to setup Load Balancer for this application to be like the following :-

traffic distribution should be as follows: 70% of the requests are going to the application written in Go, 30% of the requests are going to the application written in Java, also i will do it using Docker

I upload the code, and the application ( the two part which is Go application and Java) to my Github HERE, all the configuration has been uploaded to my github,

The Solution files like the below;

• docker-compose.yml file in root directory is the main compose file for setting up containers for all services
• go-app directory contains binary of Golang Application and Dockerfile of relavant setup
• java-app directory contains binary of Java Application and Dockerfile of relavant setup
• load-balancer directory contains nginx.conf file which is configuration file of Nginx and have load balancer rules written in it. And containers a Dockerfile for setting up Nginx with defined configurations

The final architecture will be like this instead of the image you saw above

Enjoy And Happy New Year

Osama Mustafa (The Guy who known as OsamaOracle)