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Simplify "adduser" in the Dockerfile to use the more scripting-friendly "useradd"

Docker-DCO-1.1-Signed-off-by: Andrew Page <admwiggin@gmail.com> (github: tianon)

Tianon Gravi authored on 2014/05/24 05:29:31
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@@ -90,9 +90,8 @@ RUN	/bin/echo -e '[default]\naccess_key=$AWS_ACCESS_KEY\nsecret_key=$AWS_SECRET_
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 RUN	git config --global user.email 'docker-dummy@example.com'
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 # Add an unprivileged user to be used for tests which need it
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-RUN adduser unprivilegeduser
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-RUN groupadd docker
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-RUN gpasswd -a unprivilegeduser docker
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+RUN groupadd -r docker
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+RUN useradd --create-home --gid docker unprivilegeduser
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 VOLUME	/var/lib/docker
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 WORKDIR	/go/src/github.com/dotcloud/docker