docker container 设置编码为utf8

以Ubuntu 14.04 为例创建编码为utf8的container
1、创建dockerfile文件

FROM ubuntu:14.04

RUN apt-get update && apt-get install -y locales && rm -rf /var/lib/apt/lists/* \
    && localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
ENV LANG en_US.utf8

2、根据dockerfile创建container

docker build -f dockerfile -t ubuntu-utf8:14.04 .

3、查看images

docker images

显示结果

REPOSITORY                                                  TAG                 IMAGE ID            CREATED             SIZE
ubuntu-utf8                                                 14.04               103380db15a9        About an hour ago   190MB

4、生成container

docker run -it 103380db15a9 '/bin/bash'

5、查看locale

root@f8d0b253a9f2:/# locale
LANG=en_US.utf8
LANGUAGE=
LC_CTYPE="en_US.utf8"
LC_NUMERIC="en_US.utf8"
LC_TIME="en_US.utf8"
LC_COLLATE="en_US.utf8"
LC_MONETARY="en_US.utf8"
LC_MESSAGES="en_US.utf8"
LC_PAPER="en_US.utf8"
LC_NAME="en_US.utf8"
LC_ADDRESS="en_US.utf8"
LC_TELEPHONE="en_US.utf8"
LC_MEASUREMENT="en_US.utf8"
LC_IDENTIFICATION="en_US.utf8"
LC_ALL=