On 2019-04-30 12:03, squiggly foo wrote:
Hi All,
I use the mount.fstab parameter to mount a number of file systems
before starting a jail which works without any problem. However since
it is an application jail, there are no other processes running inside
the jail other than the one application. As soon as that application
terminates the jail is removed by the host.
This is actually my preferred behavior; I want the jail to be removed
when the process inside of it terminates. But the problem is that the
mount points are not unmounted after the jail is removed that way.
The only way I can get the jails to unmount is if I do a "jail -r
jailname" which is what I want to avoid as I would not do that while
the process inside the jail is still running.
Does anyone know of a way for the jails to umount the mount points in
its fstab file when the only process inside the jail exits?
No easy way. Those filesystems have to be unmounted by somebody; the
jail can't do it because it doesn't have the permission (because it
didn't
mount them). So some process needs to be watching to see when the jail
goes away. That would be some kind of watcher that wakes up
occasionally
and sees if the jail is still there. It might be nice to have some
kqueue
support for jails.
- Jamie
_______________________________________________
[email protected] mailing list
https://lists.freebsd.org/mailman/listinfo/freebsd-jail
To unsubscribe, send any mail to "[email protected]"
