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Add note to say COPY uses root

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Will Sargent 2017-04-26 21:12:17 -07:00 • committed by GitHub
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@ -335,7 +335,7 @@ Here are some common text editors and their syntax highlighting modules you coul
* [EXPOSE](https://docs.docker.com/engine/reference/builder/#expose) informs Docker that the container listens on the specified network ports at runtime. NOTE: does not actually make ports accessible.
* [ENV](https://docs.docker.com/engine/reference/builder/#env) sets environment variable.
* [ADD](https://docs.docker.com/engine/reference/builder/#add) copies new files, directories or remote file to container. Invalidates caches. Avoid `ADD` and use `COPY` instead.
* [COPY](https://docs.docker.com/engine/reference/builder/#copy) copies new files or directories to container.
* [COPY](https://docs.docker.com/engine/reference/builder/#copy) copies new files or directories to container. Note that this only copies as root, so you have to chown manually regardless of your USER / WORKDIR setting. See https://github.com/moby/moby/issues/30110
* [ENTRYPOINT](https://docs.docker.com/engine/reference/builder/#entrypoint) configures a container that will run as an executable.
* [VOLUME](https://docs.docker.com/engine/reference/builder/#volume) creates a mount point for externally mounted volumes or other containers.
* [USER](https://docs.docker.com/engine/reference/builder/#user) sets the user name for following RUN / CMD / ENTRYPOINT commands.