go to directory

cd xxx

install virtual env

python3 -m venv venv

activate virtual env

source venv/bin/activate

install required packages

pip install -r requirements.txt

run app on local

python index.py

Go to http://127.0.0.1:3000/testing

build docker

docker build -t data_refresh1 .

run docker

docker run -p 3000:3000 data_refresh1

Go to http://127.0.0.1:3000/testing