fuse-overlayfs
An implementation of overlay+shiftfs in FUSE for rootless containers.
# Limitations:
Read-only mode is not supported, so it is always required to specify an
upperdir and a workingdir.
# Usage:
```shell
$ fuse-overlayfs -o lowerdir=lowerdir/a:lowerdir/b,upperdir=up,workdir=workdir merged
```
Specify a different UID/GID mapping:
```shell
$ fuse-overlayfs -o uidmapping=0:10:100:100:10000:2000,gidmapping=0:10:100:100:10000:2000,lowerdir=lowerdir/a:lowerdir/b,upperdir=up,workdir=workdir merged
```
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