List of Docker commands that I often use (container operation)

Introduction

I was trying to remember by looking at the official Docker manual when I was operating various things. I started to do various things and I couldn't remember it anymore. I made a list of frequently used commands and wrote them out.

Container creation operation related

** I've listed some of the most commonly used ones below, but there are more run options, so ** ** Please refer to Docker URL. ** **

1. Option to restart automatically when the host is restarted or the container is stopped unintentionally

docker run --restart=always

2. Mount the container volume on the host

docker run -v [Volume path on the host side]:[Path in the container] [The name of the container image you want to start]

3. Access the container from the outside (port forwarding) You can specify more than one

docker run -p [External port]:[Container port]

Login to container and command execution

1. Login to the container

docker exec -it [Container ID or container name] /bin/bash

2. Command execution in the container

docker exec [Container ID or container name] [Command you want to execute]

Container status check operation

1. Display a list of currently running containers Check if the STATUS column is UP to see if it is running

docker ps

2. Display a list of stopped / running containers

• -A is an abbreviation for --all

docker ps -a

Check container log

1. It's like displaying the container log with cat

docker logs [Container name or container ID]

2. Add the time when outputting the log

docker logs -t [Container name or container ID]

3. Continue to display logs in real time

docker logs -f [Container name or container ID]

4. Display the specified number of lines from the end of the log

docker logs --tail=[Number of lines to display] [Container name or container ID]

Delete container operation

1. Delete the stopped container

docker rm [Container name or container ID]

2. Delete the running container

• It is originally desirable to delete after stopping.

docker rm -rf [Container name or container ID]

3. Delete all stopped containers Extract all the containers stopped with -a, extract the container ID from them with -q, and delete it.

• As for the running container, an error will occur and it cannot be deleted. In that case, stop the running container before executing.

docker rm $(docker ps -q -a)

Container stop / start / restart operation

1. Stop a specific container that is running

docker stop [Container name or container ID]

2. Start a specific container that is stopped

docekr start [Container name or container ID]

3. Restart a specific container

docekr restart [Container name or container ID]

4. Stop all containers Extract container ID with -q and stop container

docker stop $(docker ps -q)

5. Start all containers Extract the container ID with -q and start the container

docker start $(docker ps -q)

Docker operation Other

1. Deletes all stopped containers, unused networks, unused images, etc. However, please be careful when executing it as it will be deleted all at once. .. ..

docker system purne

2. Display the detailed information of the created container or image name

docker inspect [Container name or container ID or image ID]

3. Change the container name

docker rename [Container name before change] [The changed container name]

Finally

This time, I mainly touched on creating and deleting containers in Docker. When I write next time, I would like to write something that goes a little further.