This is a minimal docker image runs flask connects to AWS and uses RDS/S3/API Gateway/CloudFront/etc. Details are shown below in FUNCTION and PROFILER area.

This architecture is designed to provide a handy way to deploy an app, you can completely remove docker based back-end server and replace by a serverless method.

1. An AWS Free-tier account
2. Knowledge of S3/RDS/CloudFront/API Gateway
3. Docker
4. Patience

$ cp ./.env.example ./.env && vim ./.env # first of all, you need to edit enviroment varibales to yours
$ chmod 777 ./deploy.sh
$ ./deploy.sh

• Upload/download images to/from S3 from API Gateway deployed on AWS
• RDS to store image path data
• Single domain with CloudFront CDN service

• S3 (only get and put are allowed): https://euqn60nqt1.execute-api.ap-northeast-1.amazonaws.com/v1/docker-flask-s3-bucket/test.png
• RDS: docker-flask-db.ccct0eee47fu.ap-northeast-1.rds.amazonaws.com
• CloudFront: https://d1w4is3fbx4jrr.cloudfront.net/

I use two method: API Gateway/ Cloudfront + API Gateway to request for images which are stored in S3-bucket. Below compare two methods, as you can see: CDN responses more efficiently.

• Amazon Relational Database Service
• How do I upload an image file to Amazon S3 through API Gateway?
• Create a REST API as an Amazon S3 proxy in API Gateway
• Connect Amazon RDS database with a Flask application
• Use CloudFront for API Gateway & S3
• How to set up a CloudFront distribution for Amazon S3