Docker Automation : DockerFile

November 25, 2023

• Docker Registry

FROM base-image

COPY source destination

RUN Command-Line

Metadata Modifffication instructions

WORKDIR /directory/subdirectoy

ENV variable value

VOLUME /mount/point

EXPOSE port

ENTRYPOINT ["/bin/binary", "opt"]
CMD ["opt", "arg"]

.dockerignore file exclude files according to some rules ex for python **/pycache -> excludes the folder pycache from any directory .git -> excludes the .git folder big_files_folder

docker build -t tag -f Dockerfile build_context

-t set names and tags for the Final Image.

build_context is a folder path where all files used withing the doicker builds are located.

-f provides the dockerfile name. Must be in the build_context.

${PWD} : links the current folder in Terminal to the /app folder in the docker image bash : opens a bash prompt on the image. type exit to get out. in the command prompt use python to open the python command prompt. Check version and use exit() to get out.