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#!/bin/bash
# NFS server for Raspbian
#
# Copyleft 2017 by Ignacio Nunez Hernanz <nacho _a_t_ ownyourbits _d_o_t_ com>
# GPL licensed (see end of file) * Use at your own risk!
#
# Usage:
#
# ./installer.sh NFS.sh <IP> (<img>)
#
# See installer.sh instructions for details
# More at: https://ownyourbits.com
#
ACTIVE_=no
DIR_=/media/USBdrive/ncdata/admin/files
SUBNET_=192.168.1.0/24
USER_=www-data
GROUP_=www-data
DESCRIPTION="NFS network file system server (for Linux LAN)"
INFOTITLE="Instructions for external synchronization"
INFO="If we intend to modify the data folder through NFS,
then we have to synchronize NextCloud to make it aware of the changes.
This can be done manually or automatically using 'nc-scan' and 'nc-scan-auto'"
install()
{
apt-get update
apt-get install --no-install-recommends -y nfs-kernel-server
systemctl disable nfs-kernel-server
systemctl mask nfs-blkmap
cat > /etc/systemd/system/nfs-common.services <<EOF
[Unit]
Description=NFS Common daemons
Wants=remote-fs-pre.target
DefaultDependencies=no
[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/etc/init.d/nfs-common start
ExecStop=/etc/init.d/nfs-common stop
[Install]
WantedBy=sysinit.target
EOF
cat > /etc/systemd/system/rpcbind.service <<EOF
[Unit]
Description=RPC bind portmap service
After=systemd-tmpfiles-setup.service
Wants=remote-fs-pre.target
Before=remote-fs-pre.target
DefaultDependencies=no
[Service]
ExecStart=/sbin/rpcbind -f -w
KillMode=process
Restart=on-failure
[Install]
WantedBy=sysinit.target
Alias=portmap
EOF
}
configure()
{
[[ $ACTIVE_ != "yes" ]] && {
service nfs-kernel-server stop
systemctl disable nfs-kernel-server
echo -e "NFS disabled"
return
}
# CHECKS
################################
id "$USER_" &>/dev/null || { echo "user USER_ does not exist" ; return 1; }
id -g "$GROUP_" &>/dev/null || { echo "group GROUP_ does not exist"; return 1; }
[ -d "$DIR_" ] || { echo -e "INFO: directory $DIR_ does not exist. Creating"; mkdir -p "$DIR_"; }
[[ $( stat -fc%d / ) == $( stat -fc%d $DIR_ ) ]] && \
echo -e "INFO: mounting a in the SD card\nIf you want to use an external mount, make sure it is properly set up"
# CONFIG
################################
cat > /etc/exports <<EOF
$DIR_ $SUBNET_(rw,sync,all_squash,anonuid=$(id -u $USER_),anongid=$(id -g $GROUP_),no_subtree_check)
EOF
systemctl enable rpcbind
systemctl enable nfs-kernel-server
service nfs-kernel-server restart
echo -e "NFS enabled"
}
# License
#
# This script is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This script is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this script; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place, Suite 330,
# Boston, MA 02111-1307 USA
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