update script to improve garage configuration

conf/mount_disk.sh

@@ -1,4 +1,4 @@
-#!bash
+#!/bin/bash
 datadir=$1
 format=$2
 i=0

conf/systemd.service

@@ -6,7 +6,7 @@ Wants=network-online.target
 [Service]
 User=__APP__
 Environment='RUST_LOG=garage=info' 'RUST_BACKTRACE=1'
-ExecStartPre=+__FINALPATH__/mount_disk.sh __FINALPATH__
+ExecStartPre=+__FINALPATH__/mount_disk.sh __FINALPATH__ __NBD_INDEX__
 ExecStart=__FINALPATH__/garage -c __FINALPATH__/garage.toml server
 StateDirectory=garage
 DynamicUser=true

conf/umount_disk.sh

@@ -1,16 +1,4 @@
-#!bash
-datadir=$1
-format=$2
-i=0
-while $(fdisk -l /dev/nbd$i  1&>2 /dev/null)
-do
-	i=$(( i + 1 ))
-done
-echo $i
-modprobe nbd max_part=$(( i + 1 ))
-qemu-nbd --connect /dev/nbd$i $datadir/garage.qcow2
-if [[ "$format" = "true" ]]
-then
-    mkfs.ext4 /dev/nbd$i > /dev/null
-fi
-mount /dev/nbd$i $datadir/data/
+#!/bin/bash
+nbd=$1
+umount  /dev/nbd$nbd
+qemu-nbd --disconnect  /dev/nbd$nbd