Basic script to do mongodb backups a la automysqlbackup

automongodbbackup.sh

#!/bin/bash
#
# A very quick, dirty script for doing daily and weekly mongodb backups
# using mongodump. Probably not the best way to do the backups, but it's
# a stopgap until we build in more redundancy via slaves, etc.
#
# Mostly stolen from automysqlbackup - http://sourceforge.net/projects/automysqlbackup/

BACKUPDIR="/var/lib/automongodbbackup"
DBNAMES="guides_staging"

PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/mysql/bin
DATE=`date +%Y-%m-%d_%Hh%Mm`                            # Datestamp e.g 2002-09-21
DOW=`date +%A`                                                  # Day of the week e.g. Monday
DNOW=`date +%u`                                         # Day number of the week 1 to 7 where 1 represents Monday
DOM=`date +%d`                                                  # Date of the Month e.g. 27
M=`date +%B`                                                    # Month e.g January
W=`date +%V`                                                    # Week Number e.g 37
VER=2.5                                                                 # Version Number
LOGFILE=$BACKUPDIR/$DBHOST-`date +%N`.log               # Logfile Name
LOGERR=$BACKUPDIR/ERRORS_$DBHOST-`date +%N`.log         # Logfile Name
BACKUPFILES=""

dbdump () {
  touch $2
  chmod 600 $2
  mongodump --db $1 > $2
  return 0
}

compression () {
  bzip2 -f -v $1 2>&1
  return 0
}


echo Backup Start Time `date`
echo ======================================================================

# Monthly Full Backup of all Databases
if [ "$DOM" = "01" ]; then
    for MDB in $MDBNAMES
    do

             # Prepare $DB for using
            MDB="`echo $MDB | sed 's/%/ /g'`"

            if [ ! -e "$BACKUPDIR/monthly/$MDB" ]           # Check Monthly DB Directory exists.
            then
                    mkdir -p "$BACKUPDIR/monthly/$MDB"
            fi
            echo Monthly Backup of $MDB...
                    dbdump "$MDB" "$BACKUPDIR/monthly/$MDB/${MDB}_$DATE.$M.$MDB.mongo"
                    compression "$BACKUPDIR/monthly/$MDB/${MDB}_$DATE.$M.$MDB.mongo"
                    BACKUPFILES="$BACKUPFILES $BACKUPDIR/monthly/$MDB/${MDB}_$DATE.$M.$MDB..mongo"
            echo ----------------------------------------------------------------------
    done
fi

for DB in $DBNAMES
do
# Prepare $DB for using
DB="`echo $DB | sed 's/%/ /g'`"

# Create Seperate directory for each DB
if [ ! -e "$BACKUPDIR/daily/$DB" ]              # Check Daily DB Directory exists.
        then
        mkdir -p "$BACKUPDIR/daily/$DB"
fi

if [ ! -e "$BACKUPDIR/weekly/$DB" ]             # Check Weekly DB Directory exists.
        then
        mkdir -p "$BACKUPDIR/weekly/$DB"
fi

# Weekly Backup
if [ "$DNOW" = "$DOWEEKLY" ]; then
        echo Weekly Backup of Database \( $DB \)
        echo Rotating 5 weeks Backups...
        if [ "$W" -le 05 ];then
                REMW=`expr 48 + $W`
        elif [ "$W" -lt 15 ];then
                REMW=0`expr $W - 5`
        else
                REMW=`expr $W - 5`
        fi
        eval rm -fv "$BACKUPDIR/weekly/$DB/${DB}_week.$REMW.*"
        echo
                dbdump "$DB" "$BACKUPDIR/weekly/$DB/${DB}_week.$W.$DATE.mongo"
                compression "$BACKUPDIR/weekly/$DB/${DB}_week.$W.$DATE.mongo"
                BACKUPFILES="$BACKUPFILES $BACKUPDIR/weekly/$DB/${DB}_week.$W.$DATE.mongo"
        echo ----------------------------------------------------------------------

# Daily Backup
else
        echo Daily Backup of Database \( $DB \)
        echo Rotating last weeks Backup...
        eval rm -fv "$BACKUPDIR/daily/$DB/*.$DOW.mongo.*"
        echo
                dbdump "$DB" "$BACKUPDIR/daily/$DB/${DB}_$DATE.$DOW.mongo"
                compression "$BACKUPDIR/daily/$DB/${DB}_$DATE.$DOW.mongo"
                BACKUPFILES="$BACKUPFILES $BACKUPDIR/daily/$DB/${DB}_$DATE.$DOW.mongo$SUFFIX"
        echo ----------------------------------------------------------------------
fi
done

echo Backup End `date`
echo ======================================================================