How to check container id in docker

How to view container IDs in Docker

Docker is an open source software containerization platform that makes application deployment and management easier and more accurate. Using the Docker platform, developers can package applications or even a complete operating system in the form of containers for easy deployment, replication, expansion and migration.

When using the Docker platform, sometimes we need to view the running container ID so that we can manage and monitor it. So, how to check the Docker container ID?

1. List running Docker containers

Before viewing the container ID, you first need to list all running Docker containers. You can use the following command to list all running Docker containers:

docker ps

This command lists the currently running container information in Docker, including the name of the container, the ID of the container, the running time, and the container usage. information such as the image and the ports exposed by the container to the outside world. You can also use this command to view the status of the container, restart, stop, and delete the container.

2. View the Docker container ID

In the results of the above command, we can easily see the container ID. A container ID is a unique identifier used to manage and operate a container.

For example, we can find the ID of the running container from the result of the above command, for example:

CONTAINER ID        IMAGE                  COMMAND                  CREATED             STATUS              PORTS                     NAMES
a43c64301dd9        nginx                  "/docker-entrypoint.…"   2 minutes ago       Up 2 minutes        0.0.0.0:80->80/tcp        web

In the result of the above command, the container ID is a43c64301dd9. It should be noted that if our Docker container name is not unique, we need to use the container ID to uniquely identify our container.

3. View Docker container details

If we need to view the details of a specific container, we can use the following command:

docker inspect [容器名或ID]

For example, we need to view the above For detailed information about the web container, you can use the following command:

docker inspect web

or

docker inspect a43c64301dd9

This command will output complete container details, including container configuration, network configuration, mount point information, etc. With these details, we can better understand and manage Docker containers.

Through the above three methods, we can easily view the ID and detailed information of the running Docker container, so as to better manage and monitor our Docker container.

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