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|
#!/bin/bash
TMDIR="/opt/taskmanager"
BACKUP="$1"
if [ -z "$BACKUP" ] || [ ! -f "$BACKUP" ]; then
echo "Backup file not found: $BACKUP"
exit 1
fi
shift
RES_OPENSLX=0
RES_SAT=0
while [ $# -gt 0 ]; do
case "$1" in
openslx)
RES_OPENSLX=1
echo "Restoring system config"
;;
dozmod)
RES_SAT=1
echo "Restoring VM and lecture db"
;;
*)
echo "Error: Restore mode params must be one of openslx, dozmod (Got $1)"
exit 1
;;
esac
shift
done
[ "$RES_OPENSLX$RES_SAT" = "00" ] && exit 1
if [ "$(whoami)" != "root" ]; then
echo "Must be running as root!"
exit 1
fi
DIR="/root/restore/$(date +%s)"
if [ -d "$DIR" ]; then
echo "Restore already running!?"
exit 1
fi
mkdir -p "$DIR"
if ! cd "$DIR"; then
echo "Could not cd to $DIR"
exit 1
fi
if ! tar --ignore-failed-read -x -f "$BACKUP"; then
echo "Could not extract $BACKUP - make sure it's a valid .tar.gz / .tgz"
exit 1
fi
if [ -f db.sql ]; then
DB_OLD=1
elif [ -f openslx.sql ] || [ -f sat.sql ]; then
DB_OLD=0
else
echo "Error: database dump not found in backup - are you sure this is a valid backup?"
exit 1
fi
if [ $RES_SAT -eq 1 -a $DB_OLD -eq 0 -a ! -f sat.sql ]; then
echo "Error: this backup does not contain the DozMod database"
echo "Error: cannot restore VM/lecture information"
exit 1
fi
if [ $RES_OPENSLX -eq 1 -a $DB_OLD -eq 0 -a ! -f openslx.sql ]; then
echo "Error: this backup does not contain the OpenSLX database"
echo "Error: cannot restore satellite configuration"
exit 1
fi
if [ $RES_OPENSLX -eq 1 -a ! -f files.tgz ]; then
echo "Error: files.tgz not found in backup - are your sure this is a valid backup?"
exit 1
fi
echo "-- Restoring Database"
if [ $DB_OLD -eq 1 ]; then
echo "--- Importing legacy database dump"
# Restoring from dozmod v1.0 db
mysql --defaults-extra-file=/etc/mysql/debian.cnf --default-character-set=utf8 < db.sql
RET=$?
if [ $RES_SAT -eq 1 ]; then
echo "--- Trying to convert dozmod data (this might not work too well...)"
mysql --defaults-extra-file=/etc/mysql/debian.cnf --default-character-set=utf8 < "${TMDIR}/data/dozmod-upgrade.sql"
else
echo "DROP DATABASE bwLehrpool" | mysql --defaults-extra-file=/etc/mysql/debian.cnf --default-character-set=utf8
fi
else
# Restoring from v1.1+ db
RET=0
if [ $RES_SAT -eq 1 ]; then
echo "--- Importing dozmod database (vms/lectures meta data)"
mysql --defaults-extra-file=/etc/mysql/debian.cnf --default-character-set=utf8 < sat.sql
RET=$?
fi
if [ $RET -eq 0 -a $RES_OPENSLX -eq 1 ]; then
echo "--- Importing system configuration"
# Backup and restore minilinux metadata -- doesn't make sense to import this from the backup
mtmp="$( mktemp )"
mysqldump --defaults-extra-file=/etc/mysql/debian.cnf --add-locks --default-character-set=utf8 openslx minilinux_source minilinux_branch minilinux_version > "${mtmp}" 2> /dev/null
mlret=$?
mysql --defaults-extra-file=/etc/mysql/debian.cnf --default-character-set=utf8 < openslx.sql
RET=$?
if [ "$mlret" = 0 ]; then
mysql --defaults-extra-file=/etc/mysql/debian.cnf --default-character-set=utf8 --database=openslx -e "DROP TABLE IF EXISTS minilinux_version, minilinux_branch, minilinux_source"
mysql --defaults-extra-file=/etc/mysql/debian.cnf --default-character-set=utf8 --database=openslx < "${mtmp}"
fi
rm -f -- "$mtmp"
fi
fi
if [ $RET -ne 0 ]; then
echo "Error: Restoring database contents failed with exit code $RET"
exit 1
fi
if [ $RES_OPENSLX -eq 1 ]; then
echo "-- Restoring system files"
# Since we came that far we'll delete some old configs (if existent)
rm -rf /opt/ldadp/{configs,pid,logs}/* /opt/openslx/configs/* /srv/openslx/www/boot/default/config.tgz 2> /dev/null
# Force triggering IP detection/setting, which should in turn regenerate ldadp configs and launch ldadp instances if applicable
mysql --defaults-extra-file=/etc/mysql/debian.cnf --default-character-set=utf8 -e "UPDATE openslx.property SET value = 'invalid' WHERE name = 'server-ip' LIMIT 1"
tar --ignore-failed-read -x -f files.tgz -C /
RET=$?
if [ $RET -ne 0 ]; then
echo "WARNING: Restoring filesystem contents failed with exit code $RET - backup might be incomplete!"
fi
# Make sure the directory tree is owned by taskmanager, as tar will create intermediate
# directories as owned by root if they do not exist.
chown -R taskmanager /srv/openslx/www/boot /opt/openslx/configs
# Try to update the db (if required)
(
cd /srv/openslx/www/slx-admin
./install-all
)
# config.tgz symlink -> db entry
if [ -L /srv/openslx/www/boot/default/config.tgz ]; then
CONFTGZ=$(readlink /srv/openslx/www/boot/default/config.tgz | sed "s/'/\\\'/g")
echo "Config.tgz links to '$CONFTGZ'"
mysql --defaults-extra-file=/etc/mysql/debian.cnf --default-character-set=utf8 -e "INSERT IGNORE INTO openslx.configtgz_location (locationid, configid) SELECT 0, configid FROM openslx.configtgz WHERE filepath = '$CONFTGZ' LIMIT 1" \
|| echo "Could not convert default config.tgz setting - do so manually"
rm -f -- /srv/openslx/www/boot/default/config.tgz
fi
sleep 0.5
for i in 1 1 1 1 1 2 2 3 4 END; do
CB=$(sudo -u www-data -n php /srv/openslx/www/slx-admin/api.php cb)
[ "x$CB" != "xTrue" ] && break
[ "$i" = "END" ] && break
sleep $i
done
fi
# Sync redirect flag file with setting stored in DB
/opt/taskmanager/scripts/install-https --redirect --redirect-only
# Run all post-restore scripts
for i in /opt/openslx/restore.d/*/init.sh; do
[ -x "$i" ] || continue
"$i" || echo "ERROR running post-restore script $i: $?"
done
rm -rf -- "$DIR"
rm -f -- "$BACKUP"
echo "Success."
exit 0
|
