samba on ubuntu 14.04 with glusterfs

#!/bin/bash
set -e # stop on error

aptitude update
aptitude upgrade -y
aptitude install -y samba samba-client krb5-user winbind libpam-mount cifs-utils xfsprogs glusterfs-server glusterfs-client acl

service smbd    stop
service nmbd    stop
service winbind stop

default="SAMDOM";
read -p "Enter workgroup [$default]: " workgroup;
[ -z "$workgroup" ] && workgroup=$default;

default="$workgroup.EXAMPLE.COM";
read -p "Enter realm [$default]: " realm ;
[ -z "$realm" ] && realm=$default;

default="DC01.$realm";
read -p "Enter name of domain controller [$default]:" dc;
[ -z "$dc" ] && dc=$default;


tdir=$(mktemp -d)

echo "Updating config files (samba, krb5 and nsswitch)"
mv -v /etc/samba/smb.conf /etc/samba/smb.conf.org
echo "[global]
workgroup = $workgroup
security = ADS
realm = $realm
encrypt passwords = yes
template shell = /bin/bash

idmap config *:backend = rid
idmap config *:range = 10000-20000

winbind use default domain = yes
winbind enum users = yes
winbind enum groups = yes

 vfs objects = acl_xattr
 map acl inherit = Yes
 store dos attributes = Yes

[test]
    path = $tdir/samba/test
    read only = no

" > /etc/samba/smb.conf

mv -v /etc/krb5.conf /etc/krb5.conf.org
echo "
[libdefaults]
    default_realm = $realm
    dns_lookup_realm = false
    dns_lookup_kdc = true
" > /etc/krb5.conf

perl -p -i.org -e 's/compat/compat winbind/g' /etc/nsswitch.conf

service smbd    restart
service nmbd    restart
service winbind restart

net ads join -U administrator

service smbd    restart
service nmbd    restart
service winbind restart

echo -n "Enter $workgroup\\administrator password: "
if net rpc rights list accounts -U"$workgroup\\administrator" | grep SeDiskOperatorPrivilege > /dev/null ; then
    echo "Admin rights okay"
else
    echo "Ensure that Admin has SeDiskOperatorPrivilege. Try following command"
    echo "net rpc rights grant '$workgroup\\Domain Admins' SeDiskOperatorPrivilege -U'$workgroup\\administrator' -I $dc"
    exit 1;
fi

# TEST 1 (should work)
echo "*** TEST 01 (working as expected) ***"
echo

echo "Creating temporary disk with xfs"
umount $tdir > /dev/null || true
dd if=/dev/zero of=./gluster.img bs=1 count=0 seek=512M # create sparse file
yes | mkfs.xfs -f gluster.img
mount -o loop gluster.img $tdir

echo "Creating samba folder and setting permissions (xfs)"
mkdir -p $tdir/samba/test
chown -R "$workgroup\\Administrator":"$workgroup\\Domain Users" $tdir/samba/test
chmod -R 0777 $tdir/samba/test
setfacl -m "g:domain admins:rwx" $tdir/samba/test

service smbd    restart
service nmbd    restart
service winbind restart

echo "Try to change folder permissions with windows client. Expected bahavior: Everything works."
read -p "Press Enter when done "

# TEST 2 (fails)
echo "*** TEST 02 (failing unexpected) ***"
echo

echo "Setting up glusterfs"
mkdir -p $tdir/{vol1,vol2} || true
if gluster volume info | grep test ; then
    echo "Gluster volume 'test' exists, skipping creation"
else
    yes | gluster volume create test replica 2 $(hostname):$tdir/vol1 $(hostname):$tdir/vol2
    gluster volume start test
    gluster volume info
fi
mount -t glusterfs -o acl $(hostname):/test $tdir/samba

echo "Creating samba folder and setting permissions (glusterfs)"
mkdir -p $tdir/samba/test
chown -R "$workgroup\\Administrator":"$workgroup\\Domain Users" $tdir/samba/test
chmod -R 0777 $tdir/samba/test
setfacl -m "g:domain admins:rwx" $tdir/samba/test

service smbd    restart
service nmbd    restart
service winbind restart

echo "Try to change folder permissions with windows client. Expected bahavior: An error occurred while applying security information ..."
read -p "Press Enter when done "

echo "Folders and files created:"
echo "$tdir"
echo "gluster.img"
echo "gluster volume test"