Backup server

These are my backup server dotfiles, which take daily snapshots of mail, calendars, contacts, and Nextcloud/Syncthing shares.

Prerequisites

The scripts and instructions here assume you have an Ubuntu server with:

• A dedicated user named syncing to run all your sync daemons;
• A user-writable partition in /mnt/data to sync your data to;
• A root-writable partition in /mnt/borg to backup this data;
• A "password store" (gpg + pass) setup for user syncing.

To get started, you first have to install some system dependencies:

sudo apt install borgmatic vdirsyncer offlineimap msmtp nextcloud-desktop-cmd syncthing ufw

User setup

Clone this repository into e.g. ~/.dotfiles, then symlink into place:

ln -s ~/.dotfiles/bin ~/.local/bin
ln -s ~/.dotfiles/config ~/.config

Perform initial synchronization of DAV and IMAP services to check setup:

vdirsyncer discover
vdirsyncer sync
offlineimap

Root setup

Recursively copy all files in ~/.dotfiles/etc into place:

sudo cp -r ~/.dotfiles/etc/borgmatic /etc/
sudo cp ~/.dotfiles/etc/systemd/system/* /etc/systemd/system/

Then enable all the relevant services:

sudo systemctl enable syncthing.service offlineimap.service nextcloud.timer borgmatic.timer

Remember to open all relevant ports with sudo ufw allow or gufw.