up structure for tf

README.md

@@ -1,6 +1,47 @@
-# Implémentation d'essai du design system
-initialiser une app Angular latest,
-importer le dépot ng-demo
-et utiliser ses composants.
+# RAG Pattern :: Backend
 
-Faire un store redux pour les applications.
+This repository hosts the code for the frontend application built with Streamlit. The deployment process involves building a Docker image, pushing it to Amazon Elastic Container Registry (ECR), and running it as an ECS task using Terraform for infrastructure management.
+
+## Deployment Workflow
+
+- :one: *Docker Image Build and Push to ECR*: The frontend application is containerized using Docker. The GitLab CI/CD pipeline builds the image and pushes it to an Amazon ECR repository.
+- :two: *Infrastructure Provisioning with Terraform*: The necessary AWS infrastructure, including the ECR repository, ECS cluster, and networking resources, is defined and managed using Terraform.
+- :three: *ECS Task Deployment*: The Docker image from ECR is deployed as an ECS task, running the Streamlit application in a containerized environment.
+
+## Detailed Steps
+
+1. **Docker Image Build & Push**:
+   - The CI/CD pipeline builds the Streamlit application into a Docker image.
+   - The image is tagged with the commit SHA for version control.
+   - The image is pushed to Amazon ECR for storage.
+
+2. **Terraform-Based Infrastructure Deployment**:
+   - The Terraform configuration provisions:
+     - An ECR repository for storing images.
+     - An ECS cluster with task definitions.
+     - Security groups, IAM roles, and networking components.
+   - The infrastructure is applied using GitLab CI/CD with `terraform apply`.
+
+3. **Deploying the Application to ECS**:
+   - The ECS task definition is updated with the latest image.
+   - The ECS service is restarted to apply the new task definition.
+   - Load balancing and auto-scaling ensure availability and scalability.
+
+## ARCHITECTURE
+
+In this architecture:
+
+- The frontend container runs on Amazon ECS with Fargate.
+- The container image is stored and retrieved from Amazon ECR.
+- Network access is managed through security groups and, optionally, an Application Load Balancer.
+- Terraform automates AWS infrastructure provisioning.
+
+This setup ensures an automated, scalable, and reliable deployment pipeline for the frontend application.
+
+![Architecture](<docs/img/DocuNinja Frontend-v0.drawio.png>)
+
+## DEPLOYEMENT
+
+### Requirements
+
+The [saeiagendocuref infrastructure](https://git.cloud.safran/safranae/saeawspfiagendocuref/saeiagendocuref/frontend-chatbot/infrastructure/-/tree/main) should be deployed in your AWS account