80 lines
1.8 KiB
Nix
80 lines
1.8 KiB
Nix
{ config, lib, pkgs, ... }:
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let
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inherit (lib)
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mkEnableOption
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mkIf
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mkOption
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;
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cfg = config.my.services.borg-backup;
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in {
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options.my.services.borg-backup = let inherit (lib) types; in {
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enable = mkEnableOption "Enable Borg backups for this host";
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repo = mkOption {
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type = types.str;
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default = null;
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example = "deadbeef@deadbeef.repo.borgbase.com:repo";
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description = "Borgbase repo info. Required.";
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};
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prune = mkOption {
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type = types.attrs;
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default = {
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keep = {
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daily = 7;
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weekly = 4;
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monthly = 6;
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};
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};
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description = "pruning options for borg";
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};
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paths = mkOption {
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type = types.listOf types.str;
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default = [];
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example = [
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"/var/lib"
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"/home"
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];
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description = "Paths to backup";
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};
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exclude = mkOption {
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type = types.listOf types.str;
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default = [];
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example = [
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# very large paths
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"/var/lib/docker"
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"/var/lib/systemd"
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"/var/lib/libvirt"
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# temporary files created by cargo and `go build`
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"**/target"
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"/home/*/go/bin"
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"/home/*/go/pkg"
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];
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description = "Paths to exclude from backup";
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};
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};
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config = mkIf cfg.enable {
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services.borgbackup.jobs."borgbase" = {
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paths = cfg.paths;
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exclude = cfg.exclude;
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repo = cfg.repo;
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encryption = {
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mode = "repokey-blake2";
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passCommand = "cat /root/borgbackup/passphrase";
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};
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environment.BORG_RSH = "ssh -i /root/borgbackup/ssh_key";
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extraCreateArgs = "--stats --list";
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extraPruneArgs = "--stats --list --save-space";
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doInit = true;
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compression = "auto,zstd";
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startAt = "daily";
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prune = cfg.prune;
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};
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};
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}
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