Understand Docker mirroring in this way
This understanding of Docker images, I believe that many inexperienced people do not know what to do, so this article summarizes the causes of the problem and solutions, through this article I hope you can solve this problem.
The following are common operation subcommands for mirroring:
Images displays a list of images
History displays image construction history
Commit creates a new image from the container
Build builds an image from Dockerfile
Tag tag the image.
Pull downloads images from registry
Push uploads the image to registry
Rmi deletes mirrors in Docker host
Search searches for images in Docker Hub
Except for rmi and search, all the other commands have been used.
Rmi
Rmi can only delete mirrors on host, not registry mirrors.
If a mirror corresponds to more than one tag, the image is really deleted only when the last tag is deleted. For example, the debian image in host has two tag:
Delete debian:latest only deletes latest tag, but the image itself is not deleted.
The entire image will be deleted only if the debian:jessie is also deleted.
Search
Search allows us to search for images in Docker Hub on the command line without opening a browser.
Of course, if you want to know what tag there are in the image, you still have to visit Docker Hub.
After reading the above, have you mastered the method of understanding Docker image in this way? If you want to learn more skills or want to know more about it, you are welcome to follow the industry information channel, thank you for reading!
