docker build
docker build -t [tag] .
how to create docker image from custom filename
cat DockerFile.debian.foo | docker build -t debian.foo -
docker build don't use cache
docker build --no-cache
docker force new build without cache
docker builder prune --filter type=exec.cachemount
create dockerfile
FROM ubuntu:18.04
COPY . /app
RUN make /app
CMD python /app/app.py