How to view Docker containers

Docker is a popular container virtualization technology that makes it easy to create and run containers. After using Docker, we usually need to view container information for easy management and maintenance. This article explains how to view Docker containers.

1. Use the Docker ps command to view running containers

The Docker ps command can view the currently running containers. To use this command, you need to enter the following in the command line:

docker ps

After running the above command, we will see all the container information currently running , including container ID, container name, image used, container status, creation time, etc.

2. Use the Docker ps -a command to view all container information

Not only can we view the running containers, we can also view the information of all containers, including stopped containers. This can be achieved using the Docker ps -a command. To use this command, you need to enter the following in the command line:

docker ps -a

After running the above command, we will see all container information, including Stopped containers and running containers. Container information is displayed in the same way as the Docker ps command.

3. Use the Docker inspect command to view specific container information

When we need to view more specific information about a container, we can use the Docker inspect command to view it. To use this command, you need to enter the following in the command line:

docker inspect <Container ID>

Container ID refers to the unique identifier of the container to be viewed . Through this command, we can view the detailed information of each container, including container IP, port mapping information, container image, etc.

4. Use the Docker logs command to view container logs

While the container is running, we may need to view the log information of the container to locate problems and debug the program. This requirement can be achieved using the Docker logs command. To use this command, you need to enter the following in the command line:

docker logs <Container ID>

This command can view the log information when the container is running, including standard output and standard error.

5. Use the Docker stats command to check the usage of container resources

During the running of Docker, we need to check the usage of container resources in order to optimize the performance of the container. This requirement can be achieved using the Docker stats command. To use this command, you need to enter the following in the command line:

docker stats <Container ID>

This command can view the usage of container resources, including CPU usage. rate, memory usage, network usage, etc.

Summary

The above are the various ways Docker views containers. Through these commands, we can understand the running status and resource usage of the container in real time, so as to better manage and maintain the Docker platform.

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