I use Docker day to day. So I decided to make a cheatsheet on Docker.
Stop, Enable and Start Docker
sudo systemctl stop docker, sudo systemctl enable docker, sudo systemctl start docker
List all the running containers
docker ps
Stop a container
docker stop CONTAINER_NAME/ID
Kill a container
docker kill CONTAINER_NAME/ID
The difference between Kill and Stop command is that it will stop the container gracefully if container has the ability to stop itself gracefully after getting the stop command. Kill command will stop the command immediately.
List all the images
docker images -a
Remove one specfic image
docker rmi imageID1 imageID2
List all exited containers
docker ps -aq -f status=exited
Remove stopped containers.
This command will not remove running containers, only an error message will be printed out for each of them. Remove dangling/untagged imagesdocker ps -aq --no-trunc -f status=exited | xargs docker rm
Remove dangling/untagged images
docker images -q --filter dangling=true | xargs docker rmi
Remove containers created after a specific container
docker ps --since a1bz3768ez7g -q | xargs docker rm
Remove containers created before a specific container
docker ps --before a1bz3768ez7g -q | xargs docker rm
How to remove intermediary images during docker build
Use --rm together with docker build to remove intermediary images during the build process.
To get in to the Container
docker exec -it CONTAINER_NAME bash
If I want to edit a file inside Container
First I copy the file in the docker hosted machine. docker cp CONTAINER_NAME:/path/to/file.ext .
Then I edit the file locally using your favorite editor, and then copy back again to the container to replace the old file. docker cp file.ext CONTAINER_NAME:/path/to/file.ext
How to remove and clean up local docker containers and images
docker system prune[Purging All Unused or Dangling Images, Containers, Volumes, and Networks]
docker system prune -a
docker rmi $(docker images -a -q)
docker rm $(docker ps -a -f status=exited -q)
docker rm $(docker ps -a -f status=exited -f status=created -q)
docker system prune -a
[remove any stopped containers and all unused images, not just dangling images]
docker image prune
docker image prune
[Remove dangling images]
docker rmi $(docker images -a -q)
[Remove all images]
docker rm $(docker ps -a -f status=exited -q)
[Remove all exited containers]
docker rm $(docker ps -a -f status=exited -f status=created -q)
[Remove containers using more than one filter]
docker stop $(docker ps -a -q)
docker rm $(docker ps -a -q)
docker stop $(docker ps -a -q)
docker rm $(docker ps -a -q)
[Stop and remove all containers]
docker rm -v container_name
[Remove a container and its volume]
docker rm -v container_name
[Remove a container and its volume]
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