NextcloudPi Rsync from one server to another

forzajappie · July 25, 2018, 9:15pm

Hi guys.

I am trying to sync one nextcloudpi server with another. For now in the same network but eventually I want to place it somewhere else so I can continue accessing my data in case of any hardware or connection failure.
Steps:

create backup with data
import backup with data on the second server
Configure second server (certificate, no-ip.org etc)
after commenting the memcache.local line

‘memcache.local’ => ‘\OC\Memcache\APCu’,

I was able to login with the same users.

Now I added another file to the first server and would like to add this on the new server also with nc-rsync. But now I run into some issues, I think it is related to permissions of the ncdata folder as they are owned by www-data and I use the pi user for rsync.

The rsync script which is used can be found here:

github.com

nextcloud/nextcloudpi/blob/master/etc/ncp-config.d/nc-rsync.sh

#!/bin/bash

# Sync Nextcloud datafolder through rsync
#
# Copyleft 2017 by Ignacio Nunez Hernanz <nacho _a_t_ ownyourbits _d_o_t_ com>
# GPL licensed (see end of file) * Use at your own risk!
#
# More at https://ownyourbits.com/2017/02/13/nextcloud-ready-raspberry-pi-image/
#

DESTINATION_=user@ip:/path/to/sync
DESCRIPTION="Sync Nextcloud data through rsync"

INFO="'user' needs SSH autologin from the NCP 'root' user at 'ip'
if we are launching from ncp-web"

BASEDIR=/var/www

install()
{

This file has been truncated. show original

rsync: change_dir#1 “/media/drive/ncdata” failed: Permission denied (13)
rsync error: errors selecting input/output files, dirs (code 3) at main.c(632) [Receiver=3.1.2]
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forzajappie · July 29, 2018, 11:07am

I have been testing and trying and by executing below steps I can copy all files from a single user to the second nextcloud server.

Rsync folder for user on Instance1
root@nextcloudpi:/media/drive/ncdata# rsync -av -e ssh --rsync-path=“sudo rsync” ./User1 pi@IPofbackupserver:/media/drive/ncdata
Fill in password when prompted
Instance2: Run NC-scan to scan for externally modified files

At the moment I am still testing to check for file permissions and other stuff. If that is all ok I will try to generate a private/public pair of keys to allow a ‘ssh’ connection without asking for a password. If someone has tips, feel free to comment