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@@ -44,6 +44,18 @@ The `ubuntu:latest` tag points to the "latest LTS", since that's the version rec
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Along a similar vein, the `ubuntu:devel` tag is an alias for whichever release the "devel" suite on the mirrors currently points to, as determined by the following one-liner: `wget -qO- http://archive.ubuntu.com/ubuntu/dists/devel/Release | awk -F ': ' '$1 == "Codename" { print $2; exit }'`
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+## Locales
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+
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+Given that it is a minimal install of Ubuntu, this image only includes the `C`, `C.UTF-8`, and `POSIX` locales by default. For most uses requiring a UTF-8 locale, `C.UTF-8` is likely sufficient (`-e LANG=C.UTF-8` or `ENV LANG C.UTF-8`).
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+
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+For uses where that is not sufficient, other locales can be installed/generated via the `locales` package. [PostgreSQL has a good example of doing so](https://github.com/docker-library/postgres/blob/69bc540ecfffecce72d49fa7e4a46680350037f9/9.6/Dockerfile#L21-L24), copied below:
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+
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+```dockerfile
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+RUN apt-get update && apt-get install -y locales && rm -rf /var/lib/apt/lists/* \
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+ && localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
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+ENV LANG en_US.utf8
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+```
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+
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## `/etc/apt/sources.list`
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### `ubuntu:16.04`
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Docker Library Bot