docker file COPY code example

Example 1: copy file from docker container to host

docker cp <containerId>:/file/path/within/container /host/path/target

Example 2: copy docker image from one machine to another

docker save -o <path for generated tar file> <image name>

Example 3: dockerfile copy specific files

COPY ["__BUILD_NUMBER", "README.md", "gulpfile", "another_file", "./"]
		All the files and folders, the last is destination

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