docker image from dockerfile code example

Example 1: how to build docker image

docker build <Dockerfile path> -t image-name

Example 2: how to open a dockerfile of an image

docker image history --no-trunc image_name > image_history

Example 3: how to create docker image from custom filename

cat DockerFile.debian.foo | docker build -t debian.foo -

Example 4: create dockerfile

FROM ubuntu:18.04
COPY . /app
RUN make /app
CMD python /app/app.py