Detailed explanation of where the images pulled by docker are stored

The commands pulled by docker are stored in the /var/lib/docker/ folder by default.

View the /var/lib/docker/image/overlay2/repositories.json file:

It is exactly the same as the content of docker images.

1. Enter the docker directory, the file structure is as follows:

2. Enter the containers directory, which stores the ID of the pulled container, that is, a serial number corresponding to a container.

Enter and select a serial number at random. After entering, you will find that the specific structure of the container is as follows:

3. Enter the image directory

This directory stores information about the pulled images. In the figure below, you can see that there is an overlay2 directory under the images directory. The repositories.json file in this directory records the detailed information of the pulled image: image name, image ID, etc. (Note: Older Docker versions may not have an overlay2 directory, but an aufs directory, which also has similar directories and files)

For comparison, the following docker command is used directly to display the image information:

You can see that the repositories.json file above records the pulled image information.

This is the end of this article about where the images pulled by docker are stored. For more information about docker pull image storage, please search for previous articles on 123WORDPRESS.COM or continue to browse the following related articles. I hope you will support 123WORDPRESS.COM in the future!