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Remove mention of "apt-get clean" as it's performed automatically

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Signed-off-by: Andrew "Tianon" Page <admwiggin@gmail.com>
This commit is contained in:
Tianon Gravi 2015-12-14 10:45:47 -08:00
parent b13fd10109
commit 226329e540
1 changed files with 3 additions and 1 deletions
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4
docs/articles/dockerfile_best-practices.md
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@ -217,7 +217,6 @@ recommendations.
ruby1.9.1 \
ruby1.9.1-dev \
s3cmd=1.1.* \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*
The `s3cmd` instructions specifies a version `1.1.0*`. If the image previously
@ -230,6 +229,9 @@ keep the image size down. Since the `RUN` statement starts with
`apt-get update`, the package cache will always be refreshed prior to
`apt-get install`.
> **Note**: The official Debian and Ubuntu images [automatically run `apt-get clean`](https://github.com/docker/docker/blob/03e2923e42446dbb830c654d0eec323a0b4ef02a/contrib/mkimage/debootstrap#L82-L105),
> so explicit invocation is not required.
### CMD
[Dockerfile reference for the CMD instruction](../reference/builder.md#cmd)