docker 容器中不支持中文

进入容器内部：

docker exec -t -i 容器名 /bin/bash

查看容器的语言环境：

[root@c50d94136d8c /]# locale

LANG=

LC_CTYPE="POSIX"

LC_NUMERIC="POSIX"

LC_TIME="POSIX"

LC_COLLATE="POSIX"

LC_MONETARY="POSIX"

LC_MESSAGES="POSIX"

LC_PAPER="POSIX"

LC_NAME="POSIX"

LC_ADDRESS="POSIX"

LC_TELEPHONE="POSIX"

LC_MEASUREMENT="POSIX"

LC_IDENTIFICATION="POSIX"

LC_ALL=

查看容器支持的语言：

[root@c50d94136d8c /]# locale -a

C

POSIX

en_US.utf8

zh_CN.utf8

设置字符集为zh.CN.utf8:

[root@c50d94136d8c zhai]# LANG=zh.CN.utf8

重新加载环境变量：

[root@c50d94136d8c zhai]# source /etc/profile

再次查看：

[root@security zhai]# locale

LANG=

LC_CTYPE="zh_CN.UTF-8"

LC_NUMERIC="zh_CN.UTF-8"

LC_TIME="zh_CN.UTF-8"

LC_COLLATE="zh_CN.UTF-8"

LC_MONETARY="zh_CN.UTF-8"

LC_MESSAGES="zh_CN.UTF-8"

LC_PAPER="zh_CN.UTF-8"

LC_NAME="zh_CN.UTF-8"

LC_ADDRESS="zh_CN.UTF-8"

LC_TELEPHONE="zh_CN.UTF-8"

LC_MEASUREMENT="zh_CN.UTF-8"

LC_IDENTIFICATION="zh_CN.UTF-8"

LC_ALL=zh_CN.UTF-8

注意：这样修改只是临时修改。要永久修改，需要在创建容器时在dockerfile中设置。

DOCKER_FILE_CONTENT=$DOCKER_FILE_CONTENT'ENV LANG zh_CN.UTF-8\n'

DOCKER_FILE_CONTENT=$DOCKER_FILE_CONTENT'ENV LC_ALL zh_CN.UTF-8\n'

重建构建容器后，进入容器，查看locale：

[root@f31a974e1710 /]# locale

LANG=zh_CN.UTF-8

LC_CTYPE="zh_CN.UTF-8"

LC_NUMERIC="zh_CN.UTF-8"

LC_TIME="zh_CN.UTF-8"

LC_COLLATE="zh_CN.UTF-8"

LC_MONETARY="zh_CN.UTF-8"

LC_MESSAGES="zh_CN.UTF-8"

LC_PAPER="zh_CN.UTF-8"

LC_NAME="zh_CN.UTF-8"

LC_ADDRESS="zh_CN.UTF-8"

LC_TELEPHONE="zh_CN.UTF-8"

LC_MEASUREMENT="zh_CN.UTF-8"

LC_IDENTIFICATION="zh_CN.UTF-8"

LC_ALL=zh_CN.UTF-8

修改成功！