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This article is about how containers in Docker implement the method of viewing termination deletion. Xiaobian thinks it is quite practical, so share it with everyone for reference. Let's follow Xiaobian and have a look.

The details are as follows:

Views

docker ps

There are some main parameters to say

1. Without parameters, it means to view the currently running container

2. -a, View all containers including stopped containers

3. -l, view newly created containers

4. -n=x, see the last x containers created

List the docker ps results

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

What do these represent?

CONTAINER ID: Container ID, uniquely identifies the container

IMAGE: The image used to create the container

COMMAND: The command that runs last in the container

CREATED: Time the container was created

STATUS: Status of the container (you will see UPXXX, indicating the operational status)

PORTS: Port number open to the public

NAMES: container name (also unique, docker is not allowed to create containers with the same container name)

start

We will see some containers with CREATED status when using docker ps -a, so we need to start the container with docker start container name or container ID. However, it should be noted that after using this command, the container enters the running state. When the container completes the task, it will exit itself and enter the stopped state. If you need to start the start command again

Here is a parameter that allows the container to automatically restart after exiting

--restart This parameter checks the container's exit code and determines whether to restart the container based on it.

Don't try this example easily, this will keep outputting hello world, and ctrl+C will not stop this (think about it later, why didn't you stop?????)

Finally, I opened another terminal and typed

docker stop docker_restart terminates the container

termination

It also said that the order was

docker stop Container name or container ID

The docker stop command sends a SIGTERM signal to the container process, and the default behavior is container exit.

If you want to forcibly stop a container, it is best to use the docker kill command.

It sends a SIGKILL signal (uncatchable)

delete

We cannot delete a running container, we must docker stop or docker kill before we can delete it.

Command: docker rm container name

Of course, if we add-f, we can also delete a running container.

How to delete all containers at once docker doesn't give the relevant command, but we can do this

-q is list container ID only

Thank you for reading! About "Docker container how to view the method of termination deletion" This article is shared here, I hope the above content can be of some help to everyone, so that everyone can learn more knowledge, if you think the article is good, you can share it to let more people see it!

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