Particle41 DevOps Team Challenge

Summary

This repository contains a complete DevOps setup for deploying a SimpleTimeService on AWS using ECS and an Application Load Balancer.

It includes:

1. Python web application that returns a pure JSON response with the following structure:

{
  "timestamp": "<current date and time>",
  "ip": "<IP address of the visitor>"
}

2. Dockerfile to build the container image
3. Terraform code to provision AWS infrastructure using ECS and an Application Load Balancer (ALB)

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Tech Stack

• Language: Python
• Web Framework: Flask (simple HTTP service)
• Containerization: Docker
• Cloud Provider: AWS
• Container Orchestration: Amazon ECS
• Load Balancer: Application Load Balancer (ALB)

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Project Structure

.
├── app/         # Application source code and Dockerfile
└── terraform/   # Terraform infrastructure code

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Prerequisites

Make sure you have the following installed:

• Git
• Docker
• Terraform
• AWS CLI

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How to Use

Clone the Repository

git clone https://github.com/288milan/devops-challenge.git
cd devops-challenge

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🐳 Build the Docker Image

cd app
docker buildx build -t <image_name>:<tag> .

Replace <image_name> and <tag> accordingly.

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Push Image to Docker Hub

docker login

docker tag <image_name>:<tag> <dockerhub-username>/<repository-name>:<tag>
docker push <dockerhub-username>/<repository-name>:<tag>

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Run Locally

docker run -d -p 8080:8080 <image_name>:<tag>

Open your browser and visit:

http://localhost:8080

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AWS Cloud Provisioning Using Terraform

Terraform Environment Variables

The following variables are required:

1. region – AWS region where resources will be deployed
2. availability_zones – Availability Zones where the subnets are created
3. project_name – Used for naming, tagging, and identifying AWS resources
4. container_image – SimpleTimeService application container image used in ECS task

update the "terraform.tfvars" variable file as required before terraform apply

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Deploy Infrastructure

cd terraform
terraform init
terraform plan
terraform apply

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Access the Application

Once deployment is complete, Terraform will output the ALB DNS name.

Open the URL in your browser to access the SimpleTimeService:

http://<alb-dns-name>

Make sure to use HTTP, not HTTPS, unless SSL is explicitly configured.

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