Check out this crazy pernicious and largely ignored Docker issue from 2014. All the time, I'm trying to
docker build something on my big Ubuntu box and I get
no space left on device.
And then I SSH into the machine, run
df -h -i and see that yes, indeed, I have like 20 free inodes.
First attempt at solving is
docker system prune [-a][-f]
sudo service docker stop && \ sudo rm -r /var/lib/docker && \ sudo services docker start
I'm using AUFS. People have the same issue with Overlay and Overlay2. Some report that BTRFS doesn't have this issue. I'll try that out and report back.