docker container修改时区

[ma6174]

docker container默认是UTC时间的，如果要使用北京时间需要修改时区，有以下几种方式：

1. 使用dpkg-reconfigure命令

$ docker run -i -t ubuntu bash
root@1f8ccb4c3dc1:/# date
Wed Sep 10 16:02:38 UTC 2014
root@1f8ccb4c3dc1:/# dpkg-reconfigure tzdata

Current default time zone: 'Asia/Shanghai'
Local time is now:      Thu Sep 11 00:02:50 CST 2014.
Universal Time is now:  Wed Sep 10 16:02:50 UTC 2014.

root@1f8ccb4c3dc1:/# date
Thu Sep 11 00:02:52 CST 2014
root@1f8ccb4c3dc1:/# 

2. 挂载使用系统/etc/localtime

$ docker run -i -t -v /etc/localtime:/etc/localtime ubuntu bash
root@6213cd50d722:/# date
Thu Sep 11 00:08:56 CST 2014
root@6213cd50d722:/#

旧版本的dockere可能文件是/etc/localtime:ro，需要修改挂载方式为：-v /etc/localtime:/etc/localtime:ro

3. 直接覆盖/etc/localtime

$ docker run -i -t ubuntu bash
root@d4b926fb2c75:/# date
Wed Sep 10 16:11:15 UTC 2014
root@d4b926fb2c75:/# apt-get install -y wget > /dev/null 2>&1
root@d4b926fb2c75:/# wget http://ma6174.u.qiniudn.com/localtime -O /etc/localtime -o /dev/null
root@d4b926fb2c75:/# date
Thu Sep 11 00:13:05 CST 2014
root@d4b926fb2c75:/#