How to use windows docker

With the popularity of container technology, Docker has become one of the most popular container engines today. In Windows, it is also possible to use Docker images to run containers. This article will introduce the basic usage of Windows Docker, including how to install Docker, how to obtain a Docker image, and how to run Docker in Windows.

1. Install Docker

Installing Docker on Windows requires meeting the following conditions:

1. Windows 10/Windows Server 2016 or higher
2. User account with administrator rights
3. CPU that supports virtualization (Intel VT-x or AMD-v)
4. Download the Docker installation package

First, We need to download the Windows version of Docker installation package from the Docker official website. The download link is: https://docs.docker.com/docker-for-windows/install/#download-docker-for-windows

2. Install Docker

After the download is complete, run the installation package to install. The installer will automatically detect whether the system meets the requirements. If it is not satisfied, you need to upgrade the relevant software or hardware to continue the installation.

During the installation process, you need to pay attention to the following points:

1. Select "Use Windows Containers" or "Use Linux Containers": Since Windows has two different container engines, You need to choose which engine to use. If you plan to run Docker on Windows Server 2019 or later, we recommend choosing to use Windows Containers. If you plan to run Docker on Windows 10, we recommend using Linux containers.
2. Installation location: The default installation location is C:Program FilesDocker, which can be modified as needed.

After completing the installation, Docker will be started automatically.

2. Obtain the Docker image

Obtaining the Docker image can be managed through Docker Hub, the official Docker image library. On Docker Hub, many commonly used images are available, such as Ubuntu, Debian, CentOS, etc., as well as images for various programming languages ​​and application services.

1. Search for images

To obtain an image, you first need to search for it on Docker Hub. You can search for images in the terminal through the following command:

docker search image name

For example, the following command is to search for Ubuntu images on Docker Hub:

docker search ubuntu

The search results show many images containing "Ubuntu", among which the official image is ubuntu, and the image with the Docker Hub user name "library" is ubuntu.

2. Download the image

After determining the image you need to use, use the following command to download the image:

docker pull Image name: Tag

The tag is optional. If you do not specify a tag, Docker will download the latest version of the image by default.

For example, to download the Ubuntu 18.04 version of the image, you can use the command:

docker pull ubuntu:18.04

After the download is complete, you can use the following Use the command to view the locally downloaded image:

docker images

You can see that the Ubuntu 18.04 version image has been downloaded locally.

3. Run the Docker container

After downloading the image, you can use Docker to run the container. To run a container, you need to use the application/service built into the Docker image to start the container.

1. Start the container

Use the following command to start the container:

docker run Image name: Tag

For example, to start an Ubuntu container, you can use the following command:

docker run ubuntu:18.04

After running, you can see that the container has been started.

2. Enter the container

To interact within the container, you need to enter the container. Use the following command to enter the container:

docker exec -it container name/bin/bash

Among them, "-it" means to enter the interactive terminal, "/ bin/bash" means to run the terminal as a Bash shell.

For example, use the following command to enter the Ubuntu container you just started:

docker exec -it container name/bin/bash

3. Exit Container

Use the following command to exit the container:

exit

The container will continue to run, but the terminal will exit.

4. Summary

So far, we have introduced the basic usage of Windows Docker, including how to install Docker, how to obtain Docker images, and how to run Docker in Windows.

Using Docker can help software developers build, test and deploy applications more conveniently. It can also effectively isolate different application environments to avoid affecting each other. The support of Docker in Windows also allows Windows developers to better experience the charm of container technology.

The above is the detailed content of How to use windows docker. For more information, please follow other related articles on the PHP Chinese website!