bash：如何编写Shell脚本以从DigitalOcean Droplet内的MongoDB Docker容器中通过FTP发送mongodump，以备份MongoDB数据库？

Question

I'm running a MeteorJS webapp deployed with meteor-up on a DO droplet. I would like to have a .sh run from my local machine to get backups occasionally. Folders being able to have timestamps would be a plus.

This is what I am trying to achieve with a single .sh file:

on local machine:

ssh root@my.droplet.address
# <prompt for password>

inside droplet:

docker exec -it mongodb bash

in mongodb docker:

rm -rf dump
mongodump -h 127.0.0.1 -d app

on remote droplet:

rm -rf dump
docker cp mongodb:/dump dump

on local machine:

sftp root@my.droplet.address

in remote droplet (sftp):

DATE=`date +%Y-%m-%d_%H%M%S`
get -r dump $DATE

Is it possible to get all these in one .sh file?

Answer 1

In the script you can run the commands in the following way:

ssh root@my.droplet.address "docker exec mongodb rm -rf dump && docker exec mongodb mongodump -h 127.0.0.1 -d app && rm -rf dump && docker cp mongodb:/dump dump && docker cp mongodb:/dump dump"

ssh root@my.droplet.address:/dump $(date +%Y-%m-%d_%H%M%S) >/dev/null 2

Answer 2

This is how I managed to do it with one .sh file. Without ssh keys, this will prompt you twice for the root password. the dump folder will be copied to ./$DATE. where $DATE = current datetime on the local machine.

#!/bin/bash
DATE=`date +%Y-%m-%d_%H%M%S`
ssh root@cleanr.ivanho.me "docker exec mongodb rm -rf dump && docker exec mongodb mongodump -h 127.0.0.1 -d app && rm -rf dump && docker cp mongodb:/dump dump"

scp -r root@cleanr.ivanho.me:/root/dump $DATE