我可以将docker qcow2文件从ubuntu服务器复制到我的mac吗？

Question

I have an ubuntu server where I installed docker to run some containers. I want to move everything to my Mac so I don't depend on the ubuntu server. Will it work if I copy the qcow2 file from the server to my Mac?

Answer 1

You can export it from your ubuntu machine in two ways dependening your need.

• docker export
• docker save

If you want the container's file system, then use docker export

$ docker export container_name > pg_container_db.tar

If you just want your image file system, use below command instead of docker export

$ docker save image_name > pg_container_db.tar

Any of the above two commands creates an archive on ubuntu machine. Later you can use it on mac.

Copy the above pg_container_db.tar file to mac & run below command

$ docker load < pg_container_db.tar

Once the above command is successful on you mac, you should be able to see by using docker images command.