Home  >  Article  >  Operation and Maintenance  >  How docker pulls images and generates containers

How docker pulls images and generates containers

little bottle
little bottleforward
2019-04-29 13:17:165137browse

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.

  1. Get the image from Docker Registry
    Parameters: docker pull [option] [Docker Registry address] :
  2. Viewed Some image files
docker images
  1. 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
  1. Check whether the container is started. If you want to check all, you can add -a
docker ps
    after the command.
  1. Verify the nginx service, open the browser, enter localhost, you can see the default homepage of nginx, as shown in the figure.
    How docker pulls images and generates containers
    Of course, we can also enter the container and modify some content.
  2. Enter the container
    Parameters: docker exec -it [containerName] bash
    For example, execute docker exec -it webserver bash
    How docker pulls images and generates containers
  3. You can change the default display homepage of nginx by modifying echo '<h1>hello docker</h1>' > /usr/share/nginx/html/index.html.

The above is the detailed content of How docker pulls images and generates containers. For more information, please follow other related articles on the PHP Chinese website!

Statement:
This article is reproduced at:csdn.net. If there is any infringement, please contact admin@php.cn delete