不通过 docker hub 怎样把 docker image 共享给别人

Question

docker image 是存放在哪个目录的，在不联互联网的情况下，怎样把 docker image 分享给局域网的其他用户？

Answer 1

Suppose you have an image called ubuntu, then you can use the save and load commands to transfer the image:

Execute on local machine
sudo docker save -o ubuntu.tar ubuntu

The ubuntu.tar file is obtained, copy it to the remote machine, and execute

sudo docker load < ubuntu.tar

That’s how it happened...

Answer 2

docker export/import?

Answer 3

keywords: docker image location

http://stackoverflow.com/questions/19234831/where-are-docker-images-stored-on-the-host-machine
http://alexander.holbreich.org/2014/07/moving-docker-images-different-partition/

Answer 4

In addition to the export/import mechanism of docker mentioned by others, you can also build your own private docker registry.

DigitalOcean has an excellent tutorial:

https://www.digitalocean.com/community/tutorials/how-to-set-up-a-priva...

Answer 5

How to save has been explained clearly. However, it is not clear how to transmit it. Here I will talk more about how to transmit it. Assume that the name of the package is xiaoming/ubuntu. Let’s save it in tmp first.

sudo docker save -o /tmp/ubuntu.tar xiaoming/ubuntu

Then we can open a micro download server.

 python -m SimpleHTTPServer 8001

Finally go to other servers

wget http://ip:8001/ubuntu.tar

That’s it.