If you have already pulled the image to your machine using docker pull [image-name] , you can extract the build steps using the docker history command. docker history --no-trunc Use code with caution. --no-trunc : Ensures that long commands aren't cut off.
Most official and popular images are built from public codebases. Check the or Readme on the registry page. download dockerfile from registry
The page will display a list of , which roughly correspond to the RUN , ENV , and COPY commands from the original Dockerfile. 2. Use docker history (The CLI Way) If you have already pulled the image to