Detailed modify Docker time zone and Docker common commands _docker

A few days ago encountered such a business scenario, the database runs in the Docker, the Docker city is UTC so it is 8 hours away from the Beijing time. However, you cannot rerun a container, only to ensure that the database is running, and to copy the host's time zone to the Docker container. Very distressed,

First I change the host's time zone to CST Beijing time. Then copy the host's time zone to the Docker container. Commands are as follows

Docker cp/etc/localtime: "Container ID or name"/etc/localtime

Of course, you can also enter the container to modify the time zone (but my container changes always report/etc/localtime file read-only, do not allow modification.) So I used the above method), the command is as follows

Add all the time zones first

And then modify the time zone

APK add tzdata 
ln-sf/usr/share/zoneinfo/asia/shanghai/etc/localtime 
echo "Asia/shanghai" >/etc/timezone

Of course, in the container to change, but also very troublesome, every time you start a new container to modify, so in the dockerfile to modify better. Commands are as follows

ENV Tz=asia/shanghai
RUN ln-snf/usr/share/zoneinfo/$TZ/etc/localtime && echo $TZ >/etc/timezone

Finally, attach Docker common commands

Docker PS View the running container

Docker ps-a View stopped containers

Docker ps-q list only container IDs

Docker Ps-s Displays the container size.

Docker Images view Mirrors

Docker images-q only list mirror IDs

Docker Images–tree lists all the submitted histories of mirrors in a tree structure.

Docker pull image_id Download IMAGE

Docker push image_id upload IMAGE

Docker RMI image_id Delete IMAGE

Docker Rmi-f forcibly removes the mirror, even if it is being used;

Docker Logs-f < container name orid> View Container log

Docker Start|stop|restart start, stop, and restart one or more specified containers.

Start a container and go into interactive mode

Docker Start-i Containerid

Displays the history of a mirror;

Docker History Image_name

Enter the container

Docker exec-it  container ID  bin/bash

Start the container and start Bash (interactive):

$docker run-i-T <image_name/continar_id>/bin/bash

Start the container to run later (more general way):

$docker run-d-it image_name

Docker Run Command explain

-D run the container in the background and return the container ID;

-I run the container in interactive mode, which is usually used with-t at the same time;

-T reassign a pseudo-input terminal to the container, usually used concurrently with-I;

Map the container port to the host's port

A container is fixed to a new image, followed by Repo:tag optional

Delete one or more container

Delete all the container

Docker RM ' Docker ps-a-Q '

Ditto, remove all container

Docker Ps-a-Q | Xargs Docker RM  

The above is the entire content of this article, I hope to help you learn, but also hope that we support the cloud habitat community.