docker system info

This spits out a ton of information. E.g.

docker system info


OSType: linux
Architecture: x86_64

and Storage Driver:

Storage Driver: overlay2
Backing Filesystem: extfs

Note on aufsvs overlay2:

OverlayFS is a modern union filesystem that is similar to AUFS, but faster and with a simpler implementation. Docker provides two storage drivers for OverlayFS: the original overlay, and the newer and more stable overlay2.

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