Treffer: To-Do List web application deployment on AWS.

This paper aims to describe sample To-Do List web application with considerations of the scalability, reliability, and cost which is paid on AWS. The application has been developed in Python language using Django framework and application tools meant for file monitoring as the Watchdog, data caching in Redis and whitenoise for the management of static files. AWS architecture involves EC2 for application hosting, Cloud Watch for Real-time Monitoring and alerting, and S3 for secure backup of files. The deployment has a 3-tier structure meaning that the presentation, application, and data layers are to be kept distinct and separated for rigidity and modularity. Presentation layer deals with all concerns to do with the user, application layer deals with all logic and data manipulation such as create, read, update, delete while the data layer is responsible for persistence and backup. A provision of AWS CloudWatch has been made for this process with detailed performance of logs, event monitoring and alert system for issues that arise. In Amazon S3, data redundance can be accomplished with backups and lifecycle policies to store data at the lowest cost possible. The deployment process of the application is based on the Docker hosting on the EC2 instances, management of the application access rights through the IAM roles, and comprehensive data transfer under the AWS CLI. Some of the challenges include; the need to efficiently deploy the limited resources, the need to coordinate the services to flow seamlessly and an overarching operational cost. The future work in this project is to incorporate auto-scaling involving traffic determination, exact error logging, application of Amazon Cognito for user sign in, as well as backup through AWS Lambda. This project shows what it means to build a robust and robust infrastructure for a modern application on AWS services, including cloud-native advantages, such as availability, protection, and operational excellence. [ABSTRACT FROM AUTHOR]

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