Use OpenMediaVault. I did install one in Debian Jessie LXC container.
There are some tricks needed to pass external disks, but it does work OK.
LXC config:
# Block configuration
lxc.cgroup.devices.allow = b 8:0 rwm # sda
lxc.cgroup.devices.allow = b 8:1 rwm # sda1
# Passthrough Printer and USB devices
lxc.mount.entry=/dev/bus/usb dev/bus/usb none bind,optional,create=dir 0 0
lxc.cgroup.devices.allow = c 180:* r
lxc.mount.entry=/dev/usb dev/usb none bind,optional,create=dir 0 0
lxc.cgroup.devices.allow = c 189:* rw
LXC /etc/rc.local
mknod /dev/sda b 8 0
mknod /dev/sda1 b 8 1
mknod /dev/sda2 b 8 2
mknod /dev/sda3 b 8 3
mknod /dev/sda4 b 8 4
mknod /dev/sdb b 8 16
mknod /dev/sdb1 b 8 17
mknod /dev/sdb2 b 8 18
mknod /dev/sdb3 b 8 19
mknod /dev/sdb4 b 8 20
echo /sys/block/sd? /sys/block/sd?/sd?? | xargs -r -n1 udevadm test
fsck -A
mount -a
LXC /etc/apt/sources.list.d/openmediavault.list
deb http://packages.openmediavault.org/public erasmus main
# deb http://downloads.sourceforge.net/project/openmediavault/packages erasmus main
## Uncomment the following line to add software from the proposed repository.
# deb http://packages.openmediavault.org/public erasmus-proposed main
# deb http://downloads.sourceforge.net/project/openmediavault/packages erasmus-proposed main
Then install (it uses package for armhf):
apt-get update && apt-get install openmediavault
It will be accessible under: http://LXC_IP/