30

On my NodeJS server (running as docker image)...

Dockerfile

FROM node:4.8-slim
RUN apt-get update -y && \
    apt-get install -yqq locales git

...there is no english locale installed:

RUN locale -a

gives me

C
C.UTF-8
POSIX

In my dockerfile I try to add the missing language

RUN apt-get install -y language-pack-en

But this gives me

Reading package lists...
Building dependency tree...
Reading state information...
E: Unable to locate package language-pack-en

So how can I add the missing language pack?

Update

Using 

sudo locale-gen en_US
sudo locale-gen en_US.UTF-8
sudo update-locale

gives me this error:

perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
    LANGUAGE = "en_US:en",
    LC_ALL = "en_US.UTF-8",
    LANG = "en_US.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_COLLATE to

default locale: No such file or directory

user3142695
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3 Answers3

48

If it's a debian image, you can add the following in your Dockerfile

RUN apt-get install -y locales locales-all
ENV LC_ALL en_US.UTF-8
ENV LANG en_US.UTF-8
ENV LANGUAGE en_US.UTF-8
Jhony Fung
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7

try:

export LANGUAGE=en_US.UTF-8
export LC_ALL=en_US.UTF-8
export LANG=en_US.UTF-8
export LC_TYPE=en_US.UTF-8
sudo locale-gen
sudo dpkg-reconfigure locales
Dai3
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3

Normally you can install other locales with:

sudo locale-gen en_US
sudo locale-gen en_US.UTF-8
sudo update-locale

then you can change the values in /etc/default/locale.

René Höhle
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