How can I fix Docker/Mac no space left on device error?

Question

I have built a pretty big image (1G) that has a lot of "infrastructure" in it for testing (Mongo, Kafka, etc.)

When trying to start this I get no space left on device errors. How can I fix this?

I've cleaned off stopped images and removed any images I don't absolutely need.

Answer 1

If you get no space left on device error with Docker, you might be able to solve this easily with system prune .

I use Docker for Mac 17.03.

With docker UP and all your containers RUNNING, execute docker system prune -a

This should give the following dialog:

WARNING! This will remove:
- all stopped containers
- all volumes not used by at least one container
- all networks not used by at least one container
- all images without at least one container associated to them Are you sure you want to continue? [y/N]

Then press y to delete lots of containers, concluding (in my case) with: Total reclaimed space: 23.26 GB.

Now you can go back to work without even rebooting docker!

Answer 2

You can resize the virtual disk image size in Docker for Mac's Preferences in the Disk tab. This will increase the space without data loss .

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In newer versions, the settings can be found in the Resources tab (sub-tab "Advanced" ):

Answer 3

Check your directories of docker to locate your problem (on MAC this will be different but the same approach could help)

du -hs /var/lib/docker

You're able to see which folder is taking a lot of disk space by performing the same command on subfolders of /var/lib/docker :

• For /var/lib/docker/volumes : You have to delete ' orphaned ' volumes. You can also use docker volume ls -qf dangling=true to check the volumes. To delete the orphaned volumes: docker volume rm $(docker volume ls -qf dangling=true)

• For /var/lib/docker/containers you have to check if you have a lot of stopped (or running) containers with docker ps = running containers and docker ps -a = all containers (running and stopped). To delete stopped containers: docker rm -v $(docker ps -aq) . The -v flag will automatically delete the volume of the container

• For /var/lib/docker/images you can delete all your unused images by using docker rmi $(docker images --filter "dangling=true" -q --no-trunc)

Also check GitHub to find some very useful scripts which delete you unused images/containers/volumes.

Answer 4

Try increasing your disk space. This is what worked for me. Docker -> preferences -> disk -> Disk image size (increase it) -> Apply

Answer 5

您可以在$HOME/.docker/machine/machines/default/config.json更新可用于 vm 的硬盘驱动器的大小

Answer 6

You can click on the Docker icon at the top, then preferences . Go to the reset tab and click on remove all data .

Answer 7

You can always drop and recreate the boot2docker vm anew to make sure only the needed images/containers are built/imported anew. If you keep hitting the space issue you might want to give your boot2docker vm bit more space, see Docker increase disk space