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#! /bin/bash
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# $Id$
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#*********************************************************************
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#
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# subroutines -- useful subroutines for FAI
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#
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# This script is part of FAI (Fully Automatic Installation)
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# (c) 2000-2005 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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# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#*********************************************************************
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# source this file, then you have these function available in the shell
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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die() {
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# echo comment and exit installation
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task_savelog
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echo "$@"
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exec bash
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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defnop() {
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# define given list of subroutine names as dummy function;
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# this will fake unknown commands
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local name
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for name in "$@";do
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eval "$name () { :;}"
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done
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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ifclass() {
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[ "$debug" ] && echo "Test if class $1 is in $classes"
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# test if a class is defined
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local cl
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local ret=1
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for cl in $classes; do
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[ x$cl = x$1 ] && ret=0 && break
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done
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[ "$debug" ] && echo "ifclass returns $ret"
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return $ret
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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rwmount() {
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# remount partition read/write
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mount -o rw,remount $1
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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save_dmesg() {
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dmesg > $LOGDIR/dmesg.log
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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wait_for_jobs() {
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# can be an extern script
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# wait for running (background) jobs to finish (e.g. update-auctex-elisp)
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local i=0
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while jobsrunning; do
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[ $(($i % 3)) -eq 0 ] && echo "Waiting for background jobs to finish."
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i=$(($i+1))
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sleep 10
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done
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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task() {
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# hooks are called before a task is called
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# if a task is skipped, also its hooks are skipped
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# a hook can set the flag, so the accociated task is skipped
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local taskname=$1
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[ -f $LOGDIR/skip.$taskname ] || call_hook $taskname
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if [ -f $LOGDIR/skip.$taskname ]; then
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# skip task
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rm $LOGDIR/skip.$taskname
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[ "$verbose" ] && echo "Skiping task_$taskname"
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sndmon "TASKSKIP $taskname"
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else
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echo "Calling task_$taskname"
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sndmon "TASKBEGIN $taskname"
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terror=0 # task can set this variable to indicate an error
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task_$taskname
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sndmon "TASKEND $taskname $terror"
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fi
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# since the subroutine is not needed any more, we can undefine it
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unset task_$taskname
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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call_hook() {
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local hook=$1
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local cl dflag hfile
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[ "$debug" ] && dflag="-d"
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for cl in $classes; do
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hfile=$FAI/hooks/$hook.$cl
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if [ -f $hfile -a ! -x $hfile ]; then
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echo "WARNING: Skipping $hfile execustion because it's not executable."
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continue
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fi
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if [ -f $hfile.source -a ! -x $hfile.source ]; then
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echo "WARNING: Skipping $hfile.source execustion because it's not executable."
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continue
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fi
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if [ -x $hfile ]; then
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echo "Calling hook: $hook.$cl"
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sndmon "HOOK $hook.$cl"
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# execute the hook
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$hfile $dflag
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check_status $hook.$cl $?
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fi
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if [ -x $hfile.source ]; then
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echo "Source hook: $hook.$cl.source"
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sndmon "HOOK $hook.$cl.source"
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# source this hook
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. $hfile.source $dflag
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check_status $hook.$cl.source $?
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fi
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done
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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skiptask() {
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# mark all given tasks, so they will be skipped
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local tasklist="$@"
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local task
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for task in $tasklist; do
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> $LOGDIR/skip.$task
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done
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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get_fai_dir() {
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# get /fai directory; mount it or get it from a cvs repository
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if [ -z "$FAI_LOCATION" ]; then
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get_fai_cvs
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else
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mount $romountopt $FAI_LOCATION $FAI &&
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echo "Configuration space $FAI mounted from $FAI_LOCATION"
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fi
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ln -s $FAI $rundir/current_config
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if [ ! -d $FAI/class ]; then
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echo "WARNING: directory $FAI/class not found."
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fi
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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get_fai_cvs() {
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# subroutine which gets $FAI (/fai) configuration directory from
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# a cvs repository. You can redefine this subroutine if you need
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# access via ftp, http, or from a database
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if [ "$FAI_CVSROOT" ] ; then
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local TAG=""
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[ -n "$FAI_CVSTAG" ] && TAG="-r $FAI_CVSTAG"
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export FAI_CONFIG_AREA=$FAI_ROOT$FAI
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export FAI=$(mktemp -t -d fai-config.XXXXXX)
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[ "$debug" ] && echo "\$FAI now points to $FAI"
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if [ -d "$FAI_CONFIG_AREA/CVS" -a -z "$FORCE" ] ; then
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echo "Config found at $FAI_CONFIG_AREA: Copying"
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cp -a $FAI_CONFIG_AREA/. $FAI
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echo "Updating CVS"
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cd $FAI
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cvs -q -d"$FAI_CVSROOT" up -P $TAG -d -C > $LOGDIR/cvs.log
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else
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echo "Checking out CVS"
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cd /tmp
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cvs -q -d"$FAI_CVSROOT" co -P -d $(basename "$FAI") \
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$TAG $FAI_CVSMODULE > $LOGDIR/cvs.log
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fi
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else
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echo "Warning $0: Neither \$FAI_LOCATION nor \$FAI_CVSROOT are defined."
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fi
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cd /
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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define_fai_flags() {
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local flag
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# FAI_FLAGS are comma separated, define all flags
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FAI_FLAGS=${FAI_FLAGS//,/ }
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[ "$verbose" ] && echo "FAI_FLAGS: $FAI_FLAGS"
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for flag in $FAI_FLAGS; do
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# define this flag as 1
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eval "$flag=1"
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done
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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task_setup() {
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# source user specific subroutines
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[ -f $FAI/hooks/subroutines ] && . $FAI/hooks/subroutines
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if [ $DO_INIT_TASKS -eq 1 ]; then
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# set the system time and date using rdate or/and ntpdate
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[ "$TIMESRVS_1" ] && rdate $TIMESRVS_1
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[ "$NTPSRVS_1" ] && ntpdate -b -v $NTPSRVS
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fi
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define_fai_flags
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DNSDOMAIN=$DOMAIN # cfengine 1.5.3 can't use $DOMAIN
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if [ $DO_INIT_TASKS -eq 1 ] ; then
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[ "$createvt" ] && {
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# create two virtual terminals; acces via alt-F2 and alt-F3
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echo "Press ctrl-c to interrupt FAI and to get a shell"
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openvt -c2 /bin/bash ; openvt -c3 /bin/bash
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trap 'echo "You can reboot with faireboot";bash' INT QUIT
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}
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# start secure shell daemon for remote access
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[ "$sshd" -a -x /usr/sbin/sshd ] && /usr/sbin/sshd
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fi
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# when did FAI start, using localtime
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FAI_RUNDATE=$(date +'%Y%m%d_%H%M%S')
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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task_action() {
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if [ -z "$FAI_ACTION" ]; then
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echo "No action in \$FAI_ACTION defined."
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sndmon "TASKERROR action 21"
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task_faiend
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exit
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fi
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echo "FAI_ACTION: $FAI_ACTION"
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case $FAI_ACTION in
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install)
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if [ $DO_INIT_TASKS -eq 0 ]; then
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echo "Cowardly refusing to run a FAI installation on a running system."
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return
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fi
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echo Performing FAI installation. All data may be overwritten!
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echo -ne "\a"; sleep 1
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echo -ne "\a"; sleep 1
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echo -e "\a"; sleep 5
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task install
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task faiend
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;;
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softupdate)
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echo Performing FAI system update. All data may be overwritten!
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task softupdate
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;;
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sysinfo)
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echo Showing system information.
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task sysinfo
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task_faiend
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die Now you have a shell.
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;;
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*)
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if [ -f $FAI/hooks/$FAI_ACTION ]; then
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echo "Calling user defined action: $FAI_ACTION"
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$FAI/hooks/$FAI_ACTION
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else
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echo "ERROR: User defined action $FAI/hooks/$FAI_ACTION not found."
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sndmon "TASKERROR action 22"
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task_faiend
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fi
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;;
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esac
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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task_defclass() {
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if [ ! -d $FAI/class ]; then
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sndmon "TASKERROR defclass 21"
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echo "Directory $FAI/class not found. Following subdirectories are found:"
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find $FAI -type d -maxdepth 1 -printf "%p\n"
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die "Aborting."
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fi
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# new script for defining classes; variables imported: $LOGDIR, $verbose, $debug
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| 303 |
if [ $renewclass -eq 1 ]; then
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# reevaluate new list of classes
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fai-class -T $FAI/class $LOGDIR/FAI_CLASSES
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| 306 |
classes=$(< $LOGDIR/FAI_CLASSES)
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else
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| 308 |
# use classes defined at installation time
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| 309 |
if [ ! -f /var/log/fai/FAI_CLASSES ]; then
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| 310 |
die "Try to read classes from /var/log/fai/FAI_CLASSES. Failed. Aborting."
|
| 311 |
fi
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| 312 |
classes=$(< /var/log/fai/FAI_CLASSES)
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fi
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# define classes as: a.b.c.d for cfengine -D
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# this doesn't work without echo
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cfclasses=$(echo $classes)
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cfclasses=${cfclasses// /.}
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[ "$debug" ] && echo "cfclasses: $cfclasses"
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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task_defvar() {
|
| 323 |
|
| 324 |
cd $FAI/class
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for class in $classes ; do
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| 326 |
if [ -f $class.var ]; then
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| 327 |
[ "$verbose" ] && echo "Executing $class.var"
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| 328 |
[ "$debug" ] && set -vx
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| 329 |
. $class.var </dev/null
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| 330 |
[ "$debug" ] && set +vx
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| 331 |
fi
|
| 332 |
done
|
| 333 |
|
| 334 |
# /fai/class/S* scripts or hooks can write variable definitions
|
| 335 |
# to additonal.var. now source these definitions
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| 336 |
[ "$debug" ] && set -vx
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| 337 |
[ -f $LOGDIR/additional.var ] && . $LOGDIR/additional.var
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| 338 |
[ "$debug" ] && set +vx
|
| 339 |
unset class
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| 340 |
# now all variables are defined. Dump them to variables.sh
|
| 341 |
set | perl -ne 'print if /^\w\w+=/' | egrep -v "^BASH_VERSINFO|^EUID|^PPID|^SHELLOPTS|^UID|^rootpw|^HOME|^PWD" > $LOGDIR/variables.sh
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| 342 |
cd /
|
| 343 |
}
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| 344 |
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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| 345 |
task_mountdisks() {
|
| 346 |
|
| 347 |
[ ! -f $LOGDIR/$fstab ] && die "No $LOGDIR/$fstab created."
|
| 348 |
# mount swap space
|
| 349 |
local sd
|
| 350 |
for sd in $SWAPLIST; do
|
| 351 |
swapon $sd && [ "$verbose" ] && echo "Enable swap device $sd"
|
| 352 |
done
|
| 353 |
mount2dir $FAI_ROOT $LOGDIR/$fstab
|
| 354 |
}
|
| 355 |
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
| 356 |
task_configure() {
|
| 357 |
|
| 358 |
fai-do-scripts $FAI/scripts
|
| 359 |
}
|
| 360 |
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
| 361 |
task_savelog() {
|
| 362 |
|
| 363 |
[ -d $target/var/log/fai ] || mkdir -p $target/var/log/fai
|
| 364 |
[ -d $target/var/log/fai ] && fai-savelog -l
|
| 365 |
cd $LOGDIR && cp -p FAI_CLASSES variables.sh $diskvar $target/var/log/fai
|
| 366 |
fai-savelog -r
|
| 367 |
cd /
|
| 368 |
}
|
| 369 |
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
| 370 |
task_faiend() {
|
| 371 |
|
| 372 |
[ $DO_INIT_TASKS -eq 0 ] && exit 0
|
| 373 |
wait_for_jobs
|
| 374 |
echo "Press <RETURN> to reboot or ctrl-c to execute a shell"
|
| 375 |
# reboot without prompting if FAI_FLAG reboot is set
|
| 376 |
[ -z $reboot ] && read
|
| 377 |
echo "Rebooting $HOSTNAME now"
|
| 378 |
sndmon REBOOT
|
| 379 |
cd /
|
| 380 |
sync
|
| 381 |
|
| 382 |
case $(uname -s) in
|
| 383 |
Linux)
|
| 384 |
killall -q sshd
|
| 385 |
umount $target/proc
|
| 386 |
umount -ar
|
| 387 |
exec reboot -dfi
|
| 388 |
;;
|
| 389 |
esac
|
| 390 |
}
|
| 391 |
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
| 392 |
task_backup() {
|
| 393 |
|
| 394 |
die "Task backup not yet used. But you can use the hook backup."
|
| 395 |
}
|
| 396 |
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
| 397 |
task_install() {
|
| 398 |
|
| 399 |
> $stamp
|
| 400 |
|
| 401 |
save_dmesg
|
| 402 |
|
| 403 |
task partition
|
| 404 |
task mountdisks
|
| 405 |
task extrbase
|
| 406 |
task mirror
|
| 407 |
task debconf
|
| 408 |
task prepareapt
|
| 409 |
task updatebase
|
| 410 |
task instsoft
|
| 411 |
task configure
|
| 412 |
task finish
|
| 413 |
task chboot
|
| 414 |
|
| 415 |
rm -f $stamp
|
| 416 |
# save again, because new messages could be created
|
| 417 |
save_dmesg
|
| 418 |
task savelog
|
| 419 |
|
| 420 |
if [ -f $stamp ]; then
|
| 421 |
echo "Error while executing commands in subshell."
|
| 422 |
echo "$stamp was not removed."
|
| 423 |
sndmon "TASKERROR install 21"
|
| 424 |
die "Please look at the log files in $LOGDIR for errors."
|
| 425 |
fi
|
| 426 |
}
|
| 427 |
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
| 428 |
task_softupdate() {
|
| 429 |
|
| 430 |
local stamp=/var/run/fai/fai_softupdate_is_running
|
| 431 |
|
| 432 |
> $stamp
|
| 433 |
|
| 434 |
save_dmesg
|
| 435 |
|
| 436 |
local start_seconds=$(cut -d . -f 1 /proc/uptime)
|
| 437 |
task mirror
|
| 438 |
task debconf
|
| 439 |
task prepareapt
|
| 440 |
task updatebase
|
| 441 |
task instsoft
|
| 442 |
task configure
|
| 443 |
date
|
| 444 |
echo "The update took $[$(cut -d . -f 1 /proc/uptime)-$start_seconds] seconds."
|
| 445 |
|
| 446 |
rm -f $stamp
|
| 447 |
# save again, because new messages could be created
|
| 448 |
save_dmesg
|
| 449 |
task savelog
|
| 450 |
|
| 451 |
if [ -f $stamp ]; then
|
| 452 |
echo "Error while executing commands in subshell."
|
| 453 |
echo "$stamp was not removed."
|
| 454 |
sndmon "TASKERROR softupdate 21"
|
| 455 |
die "Please look at the log files in $LOGDIR for errors."
|
| 456 |
fi
|
| 457 |
umount $FAI_ROOT/fai
|
| 458 |
}
|
| 459 |
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
| 460 |
|
| 461 |
catnc() {
|
| 462 |
# cat but no comment lines
|
| 463 |
egrep -v "^#" $@
|
| 464 |
}
|
| 465 |
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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