inital commit

rsnbackup.sh

@@ -0,0 +1,253 @@
+#!/bin/bash
+#
+# load global vars
+#
+. /etc/rsnbackup.conf
+
+#
+# function to add new host for backup
+#  param: $1 = BACKUP_DIR, $2 = BACKUP_HOST
+#
+ADD_NEW_HOST(){
+
+#
+# create new backup directory
+#
+echo "1. Create new backup dir: $1"
+mkdir -p $1
+mkdir -p $1/.sync
+
+#
+# create new rsnapshot config
+#
+echo "2. Create new rsnapshot-common.conf at $1/"
+
+echo -e "
+
+include_conf\t/etc/rsnapshot-common.conf
+snapshot_root\t$1/
+
+#retain\thourly\t24
+retain\tdaily\t7
+retain\tweekly\t4
+retain\tmonthly\t3
+
+logfile\t$1/rsnapshot.log
+lockfile\t$1/rsnapshot.pid
+
+exclude_file\t$1/exclude_file.txt
+
+backup\troot@$2:/\t./" >> $1/rsnapshot.conf
+
+
+#
+# create the "exclude" file for this host.
+#
+echo "- /sys/*
+- /proc/*
+- /tmp/*
+- /dev/*
+- /var/lock/*
+- /var/run/*
+- lost+found
+- /var/log/*
+- /var/lib/mysql/*
+- /var/lib/postgresql/*
+- /media/*
+- /restore/*
++ /* " >> $1/exclude_file.txt
+
+#
+# add this host to root's crontab file.
+#
+echo "3. Create new crontab for $2 backup."
+echo "
+# backup entrys for $2
+00 04 * * * rsnbackup -b $2 -r daily
+00 02 * * 0 rsnbackup -b $2 -r weekly
+00 00 1 * * rsnbackup -b $2 -r monthly
+" >> /var/spool/cron/crontabs/root
+
+#
+# Copy the Rsnapshot root's public key to the new host we are going to 
+# back up. This is so it can be trusted by the host to run backups.
+#
+cd /root
+
+echo "4. Create new .ssh dir if not exist on $2."
+ssh root@$2 "test -d '.ssh' || ( mkdir .ssh; chmod 700 .ssh; touch .ssh/authorized_keys; )"
+
+echo "5. Copy public_key to $2."
+cat .ssh/id_dsa.pub | ssh root@$2 "cat >> ~/.ssh/authorized_keys"
+
+
+#
+# set customer mail file for backup status
+#
+echo "6. Create Mail-CC file."
+echo "###
+### set customer email for notification
+###
+### Example: user1@local user2@local
+###
+CC_MAIL='' " >> $1/mail-cc.txt
+
+
+#
+# create NFS exports file
+#
+echo "7. Create NFS exports entry."
+if $(test -f /etc/exports) ; then
+	echo "$1 $2(ro,sync,no_subtree_check)" >> "/etc/exports"
+else
+	touch /etc/exports
+	echo "$1	$2(ro,sync,no_subtree_check)" >> "/etc/exports" 
+fi
+}
+
+
+#
+# run rsnapshot backup param: $1 = hostname, $2 = rotation 
+# [daily|weekly|monthly]
+#
+RUN_BACKUP(){
+
+#
+# check advanced mailx package (heirloom-mailx) installed
+#
+if ! $(dpkg-query -Wf'${db:Status-abbrev}' heirloom-mailx 2>/dev/null | grep -q '^i') ; then
+	echo "Error: Package heirloom-mailx not installed"
+	exit
+fi
+
+
+#
+# check free hd space
+#
+GET_PERCENTAGE='s/.* \([0-9]\{1,3\}\)%.*/\1/'
+
+HD_SPACE_MAX_USED=`expr 100 - $HD_SPACE_MIN_FREE`
+
+if $HD_SPACE_CHECK ; then
+	KB_USED=`df /$BACKUP_BASE | tail -n1 | sed -e "$GET_PERCENTAGE"`
+	INODE_USED=`df -i /$BACKUP_BASE | tail -n1 | sed -e "$GET_PERCENTAGE"`
+	if [ $KB_USED -ge $HD_SPACE_MAX_USED -o $INODE_USED -ge $HD_SPACE_MAX_USED ] ; then
+		echo "Fatal: Not enough space left for rsnbackup backups!"
+		echo "Fatal: Not enough space left for rsnapshot backups!" > /tmp/rsnapshot.mail.txt
+		SEND_EMAIL "Backup Error" "/tmp/rsnapshot.mail.txt" $1
+		logger "Fatal: Not enough space left for rsnbackup backups!"
+		exit
+	fi
+fi
+
+
+#
+# clean old log files
+#
+if $(test -f $BACKUP_BASE/$1/rsnapshot.log) ; then
+	echo "" > $BACKUP_BASE/$1/rsnapshot.log
+fi
+
+
+#
+# start rsnapshot backup
+#
+logger "Start rsnbackup for host: $1"
+
+rsnapshot -c $BACKUP_BASE/$1/rsnapshot.conf $2
+
+if [ $? = 0 ] ; then
+	SEND_EMAIL "Success $2 Backup: $1" "$BACKUP_BASE/$1/rsnapshot.log" $1
+else
+	SEND_EMAIL "Error $2 Backup: $1" "$BACKUP_BASE/$1/rsnapshot.log" $1
+fi
+
+}
+
+
+
+#
+# send mail function param: $1 betreff, $2 content file $host
+#
+SEND_EMAIL(){
+
+. $BACKUP_BASE/$3/mail-cc.txt
+
+if [ "$CC_MAIL" == "" ] ; then
+	mailx -s "$1" -S smtp=smtp://$MAIL_HOST:25 -S from="$MAIL_FROM" "$MAIL_TO" < "$2"
+else
+	mailx -s "$1" -S smtp=smtp://$MAIL_HOST:25 -S from="$MAIL_FROM" -c "$CC_MAIL" "$MAIL_TO" < "$2"
+fi
+
+}
+
+
+PRINT_HELP(){ cat >&2 <<EOF
+
+Usage: $0 [OPTION] Options:
+  -b, --backup Backup the Host with rsnapshot
+  -r, --rotate Backup rotation period
+  -a, --add Add new host for backup
+  -h, --help Print help and exit.
+  -v, --version Print version and exit.
+
+Example:
+  Add new host configuration: rsnbackup -a HOSTNAME
+  Run manually daily backup: rsnbackup -b HOSTNANE -r [daily|weekly|monthly]
+EOF
+}
+
+
+PRINT_VERSION(){ cat >&2 <<EOF
+
+rsnbackup version 0.0.1
+Copyright (C)2014 by Ralf Kirchner <http://www.sns-systemhaus.de/>.
+
+rsnbackup comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome 
+to redistribute it under certain conditions. See the GNU General Public Licence for details.
+EOF
+}
+
+
+# Execute getopt on the arguments passed to this program, identified by 
+# the special character $@
+PARSED_OPTIONS=$(getopt -n "$0" -o b:r:a:hv --long "backup:,rotation;,add:,help,version" -- "$@")
+
+#Bad arguments, something has gone wrong with the getopt command.
+if [ $? -ne 0 ]; then
+  exit 1
+fi
+
+# A little magic, necessary when using getopt.
+eval set -- "$PARSED_OPTIONS"
+
+while true; do
+  case "$1" in
+
+    -h|--help)
+      PRINT_HELP
+      shift;;
+
+    -v|--version)
+      PRINT_VERSION
+      shift;;
+
+    -a|--add)
+      if [ -n "$2" ]; then
+        BACKUP_DIR="$BACKUP_BASE/$2"
+	BACKUP_HOST=$2
+        ADD_NEW_HOST $BACKUP_DIR $BACKUP_HOST
+      fi
+      break;;
+
+    -b|--backup)
+      if [ -n "$2" ]; then
+	RUN_BACKUP $2 $4
+      fi
+      shift 4;;
+
+    --)
+      shift
+     break;;
+  esac
+done