Docker Protips™

Like my old post on git, this is somewhat a collection of useful Docker commands/tricks/whatever.

Feel free to leave yours in the comments!

Stop all containers#

$ docker stop $(docker ps -qa)

• ps -qa will output the CONTAINER_ID of all containers;
• stop will get ps -qa as input and stop all of them.

You can also kill all running containers instead of stop them.

Delete all stopped containers#

$ docker rm $(docker ps -qa -f="exited=0")

• ps -qa will output the CONTAINER_ID of all containers;
• -f="exited=0" flag will tell docker ps to filter by exited containers only;
• rm will remove the container.

This command is particularly useful if you tested a lot of stuff in your machine which is now running out of disk space.

Delete all images#

$ docker rmi -f $(docker images -q)

• images -q will output the IMAGE_ID of all known images;
• rmi -f will force delete all the given images.

Delete unused images#

$ docker run --rm -v /var/run/docker.sock:/var/run/docker.sock bobrik/image-cleaner

• Read more

Kitematic#

If you use a Mac, managing boot2docker by hand can be a little “boring”, you can use Kitematic for that.

Let’s make this list bigger! Have your own tip/trick? Something I forgot to add? Share it with us!