After reading this stuff about corruption of mongodb http://ivoras.sharanet.org/blog/tree/2009-11-05.a-short-time-with-mongodb.html, I thought it was time to write a small script to backup our brand new mongodb databases at YeastyMobs

Here is the handler (in /usr/share/backupninja/mongodb):

getconf host localhost
getconf backupdir
getconf mongodump_path /opt/mongodb/bin/mongodump

info "Going to backup mongodb of $host in $backupdir" 

if [ ! -f $mongodump_path ]; then
        fatal "$mongodump_path does not exists" 
fi

if [ ! -d $backupdir ]; then
        fatal "$backupdir does not exists" 
fi

if [ ! -w $backupdir ]; then
        fatal "$backupdir is not writable by you" 
fi

if [ ! $test ]; then
        output=`$mongodump_path -h $host -o $backupdir`
        code=$?

        if [ "$code" == "0" ]; then
                debug $output
                info "Successfully finished dump of all mongodb databases" 
        else
                warning $output
                warning "Failed to dump all mongodb databases" 
        fi
else
        debug "running $mongodump_path -h $host -o $backupdir" 
fi

and the backup script (in /etc/backup.d/10-action.mongodb):

backupdir = /var/backups/mongodb
mongodump_path = /opt/mongodb/bin/mongodump