Running Python Flask Application in a Docker Container

Python Flask applications can be deployed into Docker container but there a few steps you need to follow carefully

1. Create a folder
2. Place into this folder all your python code.
3. Place into this folder a Dockerfile file (to be described below)
4. Place in the folder a requirements.txt file (to be described below)
5. build the Dockerfile 
   1. command: docker build -t <new image name>:<tag> .
   2. e.g. docker build -t flask-sample-server:latest .
6. now run your image
   1. docker run -it -p <host port>:<container port> --name <host name> <new image name>:<tag>
   2. docker run -it -p 5002:5000 --name pyt flask-sample-server

Dockerfile

requirements.txt