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#! /bin/bash
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# $Id$
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#*********************************************************************
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#
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# fai-setup -- set up FAI
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#
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# This script is part of FAI (Fully Automatic Installation)
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# (c) 2000-2007 by Thomas Lange, lange@informatik.uni-koeln.de
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# Universitaet zu Koeln
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#
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#*********************************************************************
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# A copy of the GNU General Public License is available as
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# `/usr/share/common-licences/GPL' in the Debian GNU/Linux distribution
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# or on the World Wide Web at http://www.gnu.org/copyleft/gpl.html. You
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# can also obtain it by writing to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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#*********************************************************************
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PATH=/usr/local/bin:/usr/local/sbin:/bin:/sbin:/usr/bin:/usr/sbin
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set -e
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. /etc/fai/fai.conf
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. /etc/fai/make-fai-nfsroot.conf
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options=$@ # all options are also passed to make-fai-nfsroot
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# look for option -e (expert mode)
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case "$options" in
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*-e*) expert=1 ;;
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esac
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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add_export_line() {
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# add a line to /etc/exports
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pattern=$1
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shift
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options="$@"
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[ -f /etc/exports ] && grep -q "^$pattern[[:space:]]" /etc/exports && return
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echo "Adding line to /etc/exports: $pattern $options"
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echo "$pattern $options" >> /etc/exports
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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add_fai_account() {
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if id $LOGUSER 2>/dev/null 1>&2 ; then
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echo Account \$LOGUSER=$LOGUSER already exists.
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echo Make sure that all install clients can
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echo log into this account without a password.
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return
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fi
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adduser --system --disabled-password --home /var/log/fai --gecos "FAI account for log files" $LOGUSER
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# there's a bug when the encrypted password is !, so change it to *
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perl -pi.bak -e "s#^$LOGUSER:.:(.+):/bin/false#$LOGUSER:*:\1:/bin/bash#" /etc/passwd
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# get the home dir of a user in a variable; do not exit when set -e is used
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# loguserhome is unset if $LOGUSER does not exists
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# this is not a evil hack, it's a very clever piece of code
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loguserhome=$(eval "cd ~$LOGUSER 2>/dev/null && pwd;true")
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touch $loguserhome/.account_created_by_fai_package
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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setup_fai_account() {
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# most things should be executed as user $LOGUSER, since root may not have write
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# permissions to $loguserhome (e.g if mount via NFS without no_root_squash)
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set +e
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loguserhome=$(eval "cd ~$LOGUSER 2>/dev/null && pwd;true")
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sshdir=$loguserhome/.ssh
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if [ -z "$loguserhome" ]; then
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echo "Can't determine home directory for user $LOGUSER."
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echo "LOGUSER= $LOGUSER loguserhome= $loguserhome"
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exit 8
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fi
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if [ "$FAI_LOGPROTO" = "ssh" ]; then
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# set up ssh on the server
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mkdir -p -m 700 $loguserhome/.ssh
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#Generating keys for LOGUSER
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[ -f $sshdir/id_rsa ] || {
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ssh-keygen -t rsa -N '' -f $sshdir/id_rsa -C "$LOGUSER@$HOSTNAME"
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cat $sshdir/id_rsa.pub >> $sshdir/authorized_keys
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}
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[ -f $sshdir/id_dsa ] || {
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ssh-keygen -t dsa -N '' -f $sshdir/id_dsa -C "$LOGUSER@$HOSTNAME"
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cat $sshdir/id_dsa.pub >> $sshdir/authorized_keys
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}
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#Adding servers keys to known_hosts list of LOGUSER.
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#So that installed clients can ssh $LOGUSER@$HOSTNAME without password
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if [ ! -f $sshdir/known_hosts ]; then
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[ -f /etc/ssh/ssh_host_dsa_key.pub ] && DSASERVER=$(sed -e "s/= .*$/=/" /etc/ssh/ssh_host_dsa_key.pub)
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[ -f /etc/ssh/ssh_host_rsa_key.pub ] && RSASERVER=$(sed -e "s/= .*$/=/" /etc/ssh/ssh_host_rsa_key.pub )
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# determine all IP addresses, and their host names
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ips=$(LC_ALL=C ifconfig| perl -ne '/addr:([\d.]+)/ && print"$1\n"'|grep -v 127.0.0.1)
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for ip in $ips; do
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hname=$(getent hosts $ip| tr -s ' ' ',')
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[ -z "$hname" ] && hname=$ip
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echo "Adding $hname to known_hosts."
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[ -z "$DSASERVER" ] || echo "$hname $DSASERVER" >> $sshdir/known_hosts
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[ -z "$RSASERVER" ] || echo "$hname $RSASERVER" >> $sshdir/known_hosts
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done
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echo "$sshdir/known_hosts created."
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else
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echo "$sshdir/known_hosts remained unchanged."
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fi
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chmod 0700 $sshdir/authorized_keys
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echo "$sshdir/authorized_keys created."
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fi
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if [ "$FAI_LOGPROTO" = "rsh" -a ! -f $loguserhome/.rhosts ]; then
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# use .rhosts authentication
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echo "+@faiclients root" > $loguserhome/.rhosts
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chmod go-rwx $loguserhome/.rhosts
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echo "$loguserhome/.rhosts created."
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fi
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logusergid=$(id -ng $LOGUSER)
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echo "User account $LOGUSER set up."
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set -e
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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if [ -n "$LOGUSER" ]; then
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add_fai_account
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setup_fai_account
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fi
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make-fai-nfsroot $options
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if [ -n "$LOGUSER" ]; then
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# chown only if cd was successful
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cd $loguserhome
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if [ $? -eq 0 ]; then
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chown $LOGUSER:$logusergid . .rhosts || true
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[ -d .ssh ] && chown -R $LOGUSER:$logusergid .ssh || true
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fi
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mkdir -p $TFTPROOT
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chown -R $LOGUSER:$logusergid $TFTPROOT || true
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fi
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if [ -z "$FAI_CONFIGDIR" ]; then
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echo "FAI_CONFIGDIR not set in /etc/fai/fai.conf."
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echo "Using /srv/fai/config as default."
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FAI_CONFIGDIR=/srv/fai/config
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fi
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mkdir -p $FAI_CONFIGDIR
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# in expert mode, do not export nfs directories
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if [ -z "$expert" ]; then
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test -f /etc/init.d/nfs-kernel-server && nfsserver=nfs-kernel-server
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test -f /etc/init.d/nfs-user-server && nfsserver=nfs-user-server
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addr=$(LC_ALL=C ifconfig $SERVERINTERFACE | grep -v 127.0.0.1 | perl -ne '/addr:([\d.]+)/ && print"$1\n"'|head -1)
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mask=$(LC_ALL=C ifconfig $SERVERINTERFACE | grep -v 127.0.0.1 | perl -ne '/Mask:([\d.]+)/ && print"$1\n"'|head -1)
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add_export_line $FAI_CONFIGDIR "$addr/$mask(async,ro,no_subtree_check)"
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add_export_line $NFSROOT "$addr/$mask(async,ro,no_subtree_check,no_root_squash)"
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if [ -z "$nfsserver" ]; then
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echo "Could not find the type of your nfs server. Maybe"
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echo "no nfs server is installed. I can't restart it."
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else
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/etc/init.d/$nfsserver reload
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fi
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fi
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if [ ! -d $FAI_CONFIGDIR/class ]; then
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echo ""
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echo " You have no FAI configuration space yet. Copy the simple examples with:"
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echo " cp -a /usr/share/doc/fai-doc/examples/simple/* $FAI_CONFIGDIR"
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echo " Then change the configuration files to meet your local needs."
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echo ""
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fi
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echo "FAI setup finished."
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