症状
no space left on device
対策
~/git/testserver (develop ✘)✹ ᐅ docker-machine rm default
Successfully removed default
~/git/testserver (develop ✘)✹ ᐅ docker-machine create default --driver virtualbox --virtualbox-disk-size "500000"
Creating VirtualBox VM...
Creating SSH key...
Starting VirtualBox VM...
Starting VM...
To see how to connect Docker to this machine, run: docker-machine env default
~/git/testserver (develop ✘)✹ ᐅ eval "$(docker-machine env default)"