Docker CLI recipes

Stops all running docker containers

When doing development, and some clusters of containers are still using some of your ports

docker ps | awk '{print $1}' | tail -n+2 | xargs docker stop

Mirror/vendor an external docker image

If all developers are using the same large external image and you want to save 10+ developers from hammering docker's official servers (or when it's slow), and you have a local docker registry on your LAN that's faster

IMAGE=postgres:9.4
LOCALREG=myregistry.local
docker pull $IMAGE
docker tag $IMAGE $LOCALREG/$IMAGE
docker push $LOCALREG/$IMAGE

So other developers and your project's docker-compose can just refer to $LOCALREG/$IMAGE for faster image downloads

Mini docker garbage collection

A little more conservative than using https://github.com/spotify/docker-gc

Remove stopped containers

docker rm $(docker ps -aq)

Remove stale dangling images

docker rmi $(docker images -q -f "dangling=true")