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|
#! /bin/bash
# $Id: fai-setup 4225 2007-01-23 22:36:07Z lange $
#*********************************************************************
#
# fai-setup -- set up FAI
#
# This script is part of FAI (Fully Automatic Installation)
# (c) 2000-2007 by Thomas Lange, lange@informatik.uni-koeln.de
# Universitaet zu Koeln
#
#*********************************************************************
# This program 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 program 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.
#
# A copy of the GNU General Public License is available as
# `/usr/share/common-licences/GPL' in the Debian GNU/Linux distribution
# or on the World Wide Web at http://www.gnu.org/copyleft/gpl.html. You
# can also obtain it by writing to the Free Software Foundation, Inc.,
# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#*********************************************************************
PATH=/usr/local/bin:/usr/local/sbin:/bin:/sbin:/usr/bin:/usr/sbin
set -e
. /etc/fai/fai.conf
. /etc/fai/make-fai-nfsroot.conf
options=$@ # all options are also passed to make-fai-nfsroot
# look for option -e (expert mode)
case "$options" in
*-e*) expert=1 ;;
esac
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
add_export_line() {
# add a line to /etc/exports
pattern=$1
shift
options="$@"
[ -f /etc/exports ] && grep -q "^$pattern[[:space:]]" /etc/exports && return
echo "Adding line to /etc/exports: $pattern $options"
echo "$pattern $options" >> /etc/exports
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
add_fai_account() {
if id $LOGUSER 2>/dev/null 1>&2 ; then
echo Account \$LOGUSER=$LOGUSER already exists.
echo Make sure that all install clients can
echo log into this account without a password.
return
fi
adduser --system --disabled-password --home /var/log/fai --gecos "FAI account for log files" $LOGUSER
# there's a bug when the encrypted password is !, so change it to *
perl -pi.bak -e "s#^$LOGUSER:.:(.+):/bin/false#$LOGUSER:*:\1:/bin/bash#" /etc/passwd
# get the home dir of a user in a variable; do not exit when set -e is used
# loguserhome is unset if $LOGUSER does not exists
# this is not a evil hack, it's a very clever piece of code
loguserhome=$(eval "cd ~$LOGUSER 2>/dev/null && pwd;true")
touch $loguserhome/.account_created_by_fai_package
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
setup_fai_account() {
# most things should be executed as user $LOGUSER, since root may not have write
# permissions to $loguserhome (e.g if mount via NFS without no_root_squash)
set +e
loguserhome=$(eval "cd ~$LOGUSER 2>/dev/null && pwd;true")
sshdir=$loguserhome/.ssh
if [ -z "$loguserhome" ]; then
echo "Can't determine home directory for user $LOGUSER."
echo "LOGUSER= $LOGUSER loguserhome= $loguserhome"
exit 8
fi
if [ "$FAI_LOGPROTO" = "ssh" ]; then
# set up ssh on the server
mkdir -p -m 700 $loguserhome/.ssh
#Generating keys for LOGUSER
[ -f $sshdir/id_rsa ] || {
ssh-keygen -t rsa -N '' -f $sshdir/id_rsa -C "$LOGUSER@$HOSTNAME"
cat $sshdir/id_rsa.pub >> $sshdir/authorized_keys
}
[ -f $sshdir/id_dsa ] || {
ssh-keygen -t dsa -N '' -f $sshdir/id_dsa -C "$LOGUSER@$HOSTNAME"
cat $sshdir/id_dsa.pub >> $sshdir/authorized_keys
}
#Adding servers keys to known_hosts list of LOGUSER.
#So that installed clients can ssh $LOGUSER@$HOSTNAME without password
if [ ! -f $sshdir/known_hosts ]; then
[ -f /etc/ssh/ssh_host_dsa_key.pub ] && DSASERVER=$(sed -e "s/= .*$/=/" /etc/ssh/ssh_host_dsa_key.pub)
[ -f /etc/ssh/ssh_host_rsa_key.pub ] && RSASERVER=$(sed -e "s/= .*$/=/" /etc/ssh/ssh_host_rsa_key.pub )
# determine all IP addresses, and their host names
ips=$(LC_ALL=C ifconfig| perl -ne '/addr:([\d.]+)/ && print"$1\n"'|grep -v 127.0.0.1)
for ip in $ips; do
hname=$(getent hosts $ip| tr -s ' ' ',')
[ -z "$hname" ] && hname=$ip
echo "Adding $hname to known_hosts."
[ -z "$DSASERVER" ] || echo "$hname $DSASERVER" >> $sshdir/known_hosts
[ -z "$RSASERVER" ] || echo "$hname $RSASERVER" >> $sshdir/known_hosts
done
echo "$sshdir/known_hosts created."
else
echo "$sshdir/known_hosts remained unchanged."
fi
chmod 0700 $sshdir/authorized_keys
echo "$sshdir/authorized_keys created."
fi
if [ "$FAI_LOGPROTO" = "rsh" -a ! -f $loguserhome/.rhosts ]; then
# use .rhosts authentication
echo "+@faiclients root" > $loguserhome/.rhosts
chmod go-rwx $loguserhome/.rhosts
echo "$loguserhome/.rhosts created."
fi
logusergid=$(id -ng $LOGUSER)
echo "User account $LOGUSER set up."
set -e
}
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
if [ -n "$LOGUSER" ]; then
add_fai_account
setup_fai_account
fi
make-fai-nfsroot $options
if [ -n "$LOGUSER" ]; then
# chown only if cd was successful
cd $loguserhome
if [ $? -eq 0 ]; then
chown $LOGUSER:$logusergid . .rhosts || true
[ -d .ssh ] && chown -R $LOGUSER:$logusergid .ssh || true
fi
chown -R $LOGUSER:$logusergid /srv/tftp/fai || true
fi
if [ -z "$FAI_CONFIGDIR" ]; then
echo "FAI_CONFIGDIR not set in /etc/fai/fai.conf."
echo "Using /srv/fai/config as default."
FAI_CONFIGDIR=/srv/fai/config
fi
[ -d $FAI_CONFIGDIR ] || mkdir -p $FAI_CONFIGDIR
# in expert mode, do not export nfs directories
if [ -z "$expert" ]; then
test -f /etc/init.d/nfs-kernel-server && nfsserver=nfs-kernel-server
test -f /etc/init.d/nfs-user-server && nfsserver=nfs-user-server
addr=$(LC_ALL=C ifconfig $SERVERINTERFACE | grep -v 127.0.0.1 | perl -ne '/addr:([\d.]+)/ && print"$1\n"'|head -1)
mask=$(LC_ALL=C ifconfig $SERVERINTERFACE | grep -v 127.0.0.1 | perl -ne '/Mask:([\d.]+)/ && print"$1\n"'|head -1)
add_export_line $FAI_CONFIGDIR "$addr/$mask(async,ro,no_subtree_check)"
add_export_line $NFSROOT "$addr/$mask(async,ro,no_subtree_check,no_root_squash)"
if [ -z "$nfsserver" ]; then
echo "Could not find the type of your nfs server. Maybe"
echo "no nfs server is installed. I can't restart it."
else
/etc/init.d/$nfsserver reload
fi
fi
if [ ! -d $FAI_CONFIGDIR/class ]; then
echo ""
echo " You have no FAI configuration space yet. Copy the simple examples with:"
echo " cp -a /usr/share/doc/fai-doc/examples/simple/* $FAI_CONFIGDIR"
echo " Then change the configuration files to meet your local needs."
echo ""
fi
echo "FAI setup finished."
|
