dockerfile लि
ENV abc=hello
ENV abc=bye def=$abc
ENV ghi=$abc
डॉकर एक्सपोज़ पोर्ट
docker run -p [external]:[Internal]
#example (will open in localhost:8080 to container port 80)
docker run -p 8080:80
डोकर ARG
$ docker build --build-arg some_variable_name=a_value
dockerfile लि variabes
FROM busybox
ENV foo /bar
WORKDIR ${foo} # WORKDIR /bar
ADD . $foo # ADD . /bar
COPY \$foo /quux # COPY $foo /quux