Cleanup Docker host
Today I was testing a project and noticed some error messags coming from the Postgres container about having no disk space. I did a quick
docker-machine default ssh and found that one of the VM's mounts was full. Doing some searching I found a few commands to help cleanup my docker host.
The first command I used cleans up dangling images. First, I did a
docker-machine ssh default to connect to my VM then ran the following command.
docker rmi $(docker images -f "dangling=true" -q)
This freed up some space, but Docker was still hogging space on disk. I also had to clean up dangling volumes. Again, I sshed into the VM and then ran:
docker volume rm $(docker volume ls -qf dangling=true)