很多国外的镜像默认时区不是中国上海，在运行后发现时区不对，这时候想要修改时区但又不能删除容器重新运行，如何处理？

参数说明

  • ${container-name}: 启动后的容器名称

进入容器bash

  1. docker exec -t ${container-name} bash

设置时区

tzselect

根据选项提示选择亚洲-中国-上海，效果如下：

root@c7da5b2f6cde:/# tzselect
Please identify a location so that time zone rules can be set correctly.
Please select a continent, ocean, "coord", or "TZ".
1) Africa                                  7) Europe
2) Americas                                  8) Indian Ocean
3) Antarctica                                  9) Pacific Ocean
4) Asia                                     10) coord - I want to use geographical coordinates.
5) Atlantic Ocean                             11) TZ - I want to specify the time zone using the Posix TZ format.
6) Australia
#? 4
Please select a country whose clocks agree with yours.
1) Afghanistan           9) China            17) Iraq              25) Kyrgyzstan        33) Oman          41) Sri Lanka            49) Vietnam
2) Armenia          10) Cyprus            18) Israel              26) Laos            34) Pakistan          42) Syria            50) Yemen
3) Azerbaijan          11) East Timor        19) Japan              27) Lebanon        35) Palestine          43) Taiwan
4) Bahrain          12) Georgia            20) Jordan              28) Macau            36) Philippines          44) Tajikistan
5) Bangladesh          13) Hong Kong            21) Kazakhstan          29) Malaysia        37) Qatar          45) Thailand
6) Bhutan          14) India            22) Korea (North)          30) Mongolia        38) Russia          46) Turkmenistan
7) Brunei          15) Indonesia            23) Korea (South)          31) Myanmar (Burma)    39) Saudi Arabia      47) United Arab Emirates
8) Cambodia          16) Iran            24) Kuwait              32) Nepal            40) Singapore          48) Uzbekistan
#? 9
Please select one of the following time zone regions.
1) Beijing Time
2) Xinjiang Time
#? 1

The following information has been given:

    China
    Beijing Time

Therefore TZ='Asia/Shanghai' will be used.
Selected time is now:    Thu Dec 17 14:51:04 CST 2020.
Universal Time is now:    Thu Dec 17 06:51:04 UTC 2020.
Is the above information OK?
1) Yes
2) No
#? 1

You can make this change permanent for yourself by appending the line
    TZ='Asia/Shanghai'; export TZ
to the file '.profile' in your home directory; then log out and log in again.

Here is that TZ value again, this time on standard output so that you
can use the /usr/bin/tzselect command in shell scripts:
Asia/Shanghai

复制时区到localtime

cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

退出容器

exec

重启容器

docker stop ${container-name}
docker start ${container-name}