mongodb数据库备份

#!/bin/bash

##
##   MongoDB Database Backup Script 
##

export PATH=/bin:/usr/bin:/usr/local/bin
TODAY=`date +"%Y_%m_%d"`

DB_BACKUP_PATH=''
MONGO_HOST=''
MONGO_PORT=''

# If mongodb is protected with username password.
# Set AUTH_ENABLED to 1 
# and add MONGO_USER and MONGO_PASSWD values correctly

AUTH_ENABLED=1
MONGO_USER=''
MONGO_PASSWD=''

# Set DATABASE_NAMES to "ALL" to backup all databases.
# or specify databases names seprated with space to backup 
# specific databases only.

DATABASE_NAMES='ALL'
#DATABASE_NAMES='mydb db2 newdb'

## Number of days to keep local backup copy
BACKUP_RETAIN_DAYS=30

mkdir -p ${DB_BACKUP_PATH}/${TODAY}

AUTH_PARAM=""

if [ ${AUTH_ENABLED} -eq 1 ]; then
    AUTH_PARAM=" --username ${MONGO_USER} --password ${MONGO_PASSWD} "
fi

if [ ${DATABASE_NAMES} = "ALL" ]; then
    echo "You have choose to backup all databases"
    mongodump --host ${MONGO_HOST} --port ${MONGO_PORT} ${AUTH_PARAM} --out ${DB_BACKUP_PATH}/${TODAY}/
else
    echo "Running backup for selected databases"
    for DB_NAME in ${DATABASE_NAMES}
    do
        mongodump --host ${MONGO_HOST} --port ${MONGO_PORT} --db ${DB_NAME} ${AUTH_PARAM} --out ${DB_BACKUP_PATH}/${TODAY}/
    done
fi

## Remove backups older than {BACKUP_RETAIN_DAYS} days  ##

DBDELDATE=`date +"%Y_%m_%d" --date="${BACKUP_RETAIN_DAYS} days ago"`

if [ ! -z ${DB_BACKUP_PATH} ];then
    cd ${DB_BACKUP_PATH}
    if [ ! -z ${DBDELDATE} ] && [ -d ${DBDELDATE} ];then
        rm -rf ${DBDELDATE}
    fi
fi