Docker is an open source application container engine that allows developers to package their applications and dependencies into a portable container, and then Publish to any popular Linux machine and can also be virtualized. This article describes how docker pulls images and generates containers. Interested friends can learn more.
Get the image from Docker Registry Parameters: docker pull [option] [Docker Registry address] :
Viewed Some image files
docker images
docker generates containers Related tutorials:docker video tutorial You can generate a container by executing an Nginx image Parameters: docker run --name [container name] [options] -p : [warehouse name] -d means running in the background -p means setting port
如上图中的,docker run --name webserver -d -p 80:80 nginx
Check whether the container is started. If you want to check all, you can add -a
docker ps
after the command.
Verify the nginx service, open the browser, enter localhost, you can see the default homepage of nginx, as shown in the figure.
Of course, we can also enter the container and modify some content.
Enter the container Parameters: docker exec -it [containerName] bash For example, execute docker exec -it webserver bash
You can change the default display homepage of nginx by modifying echo '<h1>hello docker</h1>' > /usr/share/nginx/html/index.html.
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