Backup mongo data to a directory and clear directory of old files.

mongoBackupData.sh

#!/usr/bin/env bash
set -e
#set -x # for debugging

# daily backups with logs crontab -e example:
# 0 1 * * * /home/user/path/to/this/file -u my-user -p 'my-pw' -d mydb -t 90 >>/home/user/logs/backup.log 2>&1

    MONGO_PW=""
    TTL=180

    while test $# -gt 0; do
        case "$1" in
            -h|--help)
                echo "Database backup."
                echo " "
                echo "Creates a mongo dump in ~/backups and packages it in a tar.gz"
                echo " "
                echo "options:"
                echo "-h, --help        show help"
                echo "-u, --user        mongo user"
                echo "-p, --password    mongo user password"
                echo "                      to be prompted for a password, do not include this flag"
                echo "-d, --database    mongo database - defaults to theme if not provided"
                echo "-t, --ttl         time to live of files in days"
                echo "                      files older than ttl days will be deleted"
                exit 0
                ;;
            -u|--user)
                shift
                MONGO_USER=$1
                shift
                ;;
            -p|--password)
                shift
                MONGO_PW=$1
                shift
                ;;
            -d|--database)
                shift
                MONGO_DB=$1
                shift
                ;;
            -t|--ttl)
                shift
                TTL=$1
                shift
                ;;
            *)
                break
                ;;
        esac
    done

    echo " "

    THE_THEME="$MONGO_DB"
    THE_DATE=$(date +'%Y-%m-%d-%T' | sed 's/:/_/g')
    THE_DIR="$THE_THEME-$THE_DATE"

    echo "the dir: $THE_DIR"
    cd ~/backups
    mkdir $THE_DIR
    cd $THE_DIR

    echo "starting mongo backup u:$MONGO_USER d:$MONGO_DB"
    mongodump -u $MONGO_USER -p $MONGO_PW --db $MONGO_DB --out ./
    echo " "

    cd ~/backups
    TAR_FILE="$THE_THEME-$THE_DATE.tar.gz"
    tar --remove-files -zcvf $TAR_FILE $THE_DIR

    echo "Done backuping up $THE_THEME"
    echo " "
    echo "Checking for old files to delete"
    find ~/backups -type f -mtime +$TTL -delete
    echo "--------------------------------------------"
    echo " "
    echo " "

    exit 0