Docker - Encoding (Locale)

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In docker linux, in order to set your default encoding, you need to set your locale via environment variable in your dockerfile

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Example

Ubuntu

Check/ List the locales

locale -a

C
C.UTF-8
POSIX

If there is no locale, install them

apt-get install -y locales
# if you really want to have all locales :)
# apt-get install -y locales-all

Then in docker file

ENV LANG C.UTF-8
ENV LC_ALL C.UTF-8