Docker Docker Docker

Some useful docker commands:

Install docker

sudo apt-get install docker.io

Remove all docker images

docker rmi $(docker images -a -q)

Remove all exited containers and dangling images

docker rm $(docker ps -a -f status=exited -q)
docker rmi -f $(docker images -f "dangling=true" -q)

Stop all running containers

docker stop $(docker ps -a -q)

Connect to a running container

docker exec -it ContaineridOrName bash

Run a docker container and interact with the container

docker run -it --rm busybox

Normally a regular user can not run docker because of the permissions, the following command assume that a use group named "docker" has been created during the docker install, then you can the following command to add the current logged in user to the docker group, then refresh the group, the current user will be able to manipulate docker as the root user:

sudo gpasswd -a $USER docker
newgrp docker 

sudo chmod 666 /var/run/docker.sock