How to pull images in Docker

Docker is a convenient containerization solution that can easily deploy and manage applications by pulling images. This article will introduce how to pull the image in Docker.

1. Installing Docker

First, you need to install Docker on your local machine or server. Depending on the operating system, you can find the corresponding installation method on the Docker official website. After the installation is complete, you can enterdocker versionin the terminal or command line window to verify whether the installation is successful.

2. Find images

You can find a large number of images on Docker Hub. Docker Hub is the official image center of Docker and contains many public images. Enter the following command in the terminal or command line window to search for images:

docker search 镜像名称

For example, if you want to find the image of the node environment, you can enter the following command:

docker search node

3. Pull image

After confirming the image that needs to be pulled, you can use thedocker pullcommand to pull the image locally. For example, to pull the latest version of node, you can use the following command:

docker pull node

If you want to pull the image of a specified version, you can use the following command:

docker pull node:版本号

For example, to pull Node. js 10 version, you can enter the following command:

docker pull node:10

4. View pulled images

To view the list of mirrors that have been pulled locally, you can use the following command:

docker images

This command will list all local pulled images.

5. Summary

Through the above steps, we can easily pull the image in Docker, manage and deploy the Docker image. Of course, in order to better take advantage of Docker, you can learn more about Docker's operating commands and usage methods.

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