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I've written a small FUSE-based filesystem and now the only part's missing is that I want to register it with fstab(5) to auto-mount it on system startup and/or manually mount it with just mount /srv/virtual-db. How can I achieve this?
I know, I can just run /usr/bin/vdbfs.py /srv/virtual-db from some init script, but that's not exactly pretty.
I'm sorry because this may be not exactly a programming question, but it's highly related, as the packaging and deployment is still the programmer's job.
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FUSE (Filesystem in Userspace) is a simple interface for userspace programs to export a virtual filesystem to the Linux kernel. FUSE also aims to provide a secure method for non privileged users to create and mount their own filesystem implementations.
Command-line options available for the mount command are: -a, --all Mount all filesystems (of the given types) mentioned in fstab (except for those whose line contains the noauto keyword). The filesystems are mounted following their order in fstab.
In general, one "registers" a new mount filesystem type by creating an executable mount.fstype.
$ ln -s /usr/bin/vdbfs.py /usr/sbin/mount.vdbfs
If vdbfs.py takes mount-ish arguments (i.e. dev path [-o opts]), then mount -t vdbfs and using vdbfs as the 3rd field in fstab will work. If it doesn't, you can create a wrapper which does take arguments of that form and maps them to whatever your vdbfs.py takes.
FUSE should also install a mount.fuse executable; mount.fuse 'vdbfs.py#dev' path -o opts will go on and call vdbfs.py dev path -o opts. In that case, you can use fuse as your filesystem type and prefix your device with vdbfs.py#.
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