2.13. Docker warehouse management

2.13.1. Docker Hub ¶

At present, Docker officially maintains a public warehouse. Docker Hub .

Most of the requirements can be achieved by downloading the image directly in Docker Hub.

2.13.2. Register ¶

Sign up for a Docker account at https://hub.docker.com for free.

2.13.3. Login and logout ¶

You need to enter a user name and password to log in. After the login is successful, we can pull all the images under our account from docker hub.

$ docker login

` <../wp-content/uploads/2019/10/5974B2AE-945F-4DD0-A7C8-9D9B01BDAF62.jpg>` __ 退出

You can use the following command to exit docker hub:

$ docker logout

Pull the image you can use the docker search command to find the image in the official repository, and use the docker pull command to download it locally.

Search with ubuntu as the keyword:

$ docker search ubuntu

` <../wp-content/uploads/2019/10/docker-search22.png>` _ _ download the official ubuntu image locally using docker pull:

$ docker pull ubuntu

` <../wp-content/uploads/2019/10/docker-pull22.png>` __

2.13.4. Push image ¶

After logging in, users can push their own images to Docker Hub through the docker push command.

Please replace the username in the following command with your Docker account user name.

$ docker tag ubuntu:18.04 username/ubuntu:18.04
$ docker image ls

REPOSITORY      TAG        IMAGE ID            CREATED           ...
ubuntu          18.04      275d79972a86        6 days ago        ...
username/ubuntu 18.04      275d79972a86        6 days ago        ...
$ docker push username/ubuntu:18.04
$ docker search username/ubuntu

NAME             DESCRIPTION       STARS         OFFICIAL    AUTOMATED
username/ubuntu