nix-files/modules/services/duplicity.nix
Colin 7da3d48272 migrate duplicity config to a module
this will let other machines reuse it
2022-06-10 01:30:57 -07:00

52 lines
1.5 KiB
Nix

# docs: https://search.nixos.org/options?channel=21.11&query=duplicity
{ config, ... }:
with lib;
let
cfg = config.colinsane.services.duplicity;
in
{
options = {
colinsane.services.duplicity.enable = mkOption {
default = false;
type = types.bool;
};
};
config = mkIf cfg.enable {
services.duplicity.enable = true;
services.duplicity.targetUrl = ''"$DUPLICITY_URL"'';
services.duplicity.escapeUrl = false;
# format: PASSPHRASE=<cleartext> \n DUPLICITY_URL=b2://...
# two sisters
# TODO: s/duplicity_passphrase/duplicity_env/
services.duplicity.secretFile = config.sops.secrets.duplicity_passphrase.path;
# NB: manually trigger with `systemctl start duplicity`
services.duplicity.frequency = "daily";
services.duplicity.exclude = [
# impermanent/inconsequential data:
"/dev"
"/proc"
"/run"
"/sys"
"/tmp"
# bind mounted (dupes):
"/var/lib/pleroma"
"/var/lib/transmission/Downloads"
"/var/lib/transmission/.incomplete"
# other mounts
"/mnt"
# data that's not worth the cost to backup:
"/opt/uninsane/media"
];
services.duplicity.extraFlags = [
# without --allow-source-mismatch, duplicity will abort if you change the hostname between backups
"--allow-source-mismatch"
];
# set this for the FIRST backup, then remove it to enable incremental backups
# (that the first backup *isn't* full i think is a defect)
# services.duplicity.fullIfOlderThan = "always";
}