Can it be used to build image given a Dockerfile?

[Farahani1]

Hi, thank you for providing this clean and simple tool!
I am wondering how can I use it to create an image from a Dockerfile like this:

FROM python:3.10

WORKDIR /app 

COPY requirements.txt . 
RUN pip install --no-cache-dir -r requirements.txt

Then, I need to save the created image as a '.tar'.

I need to do this because where I am living we face tremendous obstacles by bans and internet access filtering :)

[SmartManoj]

Did you get any error?