#!/bin/bash
#maintainer : hatem ben tayeb <hatemtayeb2@gmail.com>
# usage : ./backup.sh <container name> <container network>
if [ ! -z $1 ]
then
    
    declare log_path="/backups/backup.log" # make sure to create them manually or change it with your customized path
    declare IP=$(docker inspect $1 | jq ".[].NetworkSettings.Networks.$2.IPAddress" -r)
    ping -c2 $IP 2>/dev/null 1>/dev/null
    if [ $? = 0 ]
    then
        docker run --rm --net=$2  mongo:latest mongodump --host $IP --archive --gzip | cat > /backups/dump_prod_$(date '+%d-%m-%Y_%H-%M').gz && \
        echo "$(date '+%d/%m/%Y %H:%M') [+] SUCCESS : backup created on /backups/dump_prod_$(date '+%d-%m-%Y_%H-%M').gz" >> $log_path \
         || echo "$(date '+%d/%m/%Y %H:%M') [-] ERR : when trying to gather backup on $1 with ip address : $IP " >> $log_path
        else
        echo "$(date '+%d/%m/%Y %H:%M') [-] ERR : mongo container is down or wrong container name !" >> $log_path
    fi

else
	 echo -e "\n[-] ERR: you must specify mongo container name !\n"

fi
#
#cat <gzip_file> | docker run --rm -i mongo mongorestore --host <mongo_ip> --archive --gzip --drop
# add it as a cronJob (EDITOR=vim crontab -e)  : 0 3 */3 * * /root/backup.sh mongo