126 lines
3.3 KiB
Nix
126 lines
3.3 KiB
Nix
{ pkgs, config, lib, ... }:
|
|
let
|
|
cfg = config.sbruder.restic.system;
|
|
|
|
repository = "s3:https://s3.eu-central-1.wasabisys.com/sbruder-restic";
|
|
excludes = [
|
|
# Caches
|
|
"/home/*/Downloads/"
|
|
"/home/*/.cache/"
|
|
"/home/*/**/cache/"
|
|
"/home/*/.local/share/Trash" # some gui applications use it
|
|
"/data/cache/"
|
|
|
|
# Rust
|
|
"/home/*/**/target/debug/"
|
|
"/home/*/**/target/doc/"
|
|
"/home/*/**/target/release/"
|
|
"/home/*/**/target/rls/"
|
|
"/home/*/**/target/tarpaulin/"
|
|
"/home/*/**/target/wasm32-unknown-unknown/"
|
|
"/home/*/.rustup/toolchains/"
|
|
"/home/*/.cargo"
|
|
|
|
# Misc
|
|
"/home/*/mount"
|
|
|
|
# Docker (state should be kept somewhere else)
|
|
"/var/lib/docker/"
|
|
|
|
# Static configuration (generated from this repository)
|
|
"/etc/static/"
|
|
] ++ cfg.extraExcludes;
|
|
excludesFile = pkgs.writeText "excludes.txt" (lib.concatStringsSep "\n" excludes);
|
|
|
|
# script to use restic as user without dealing with authentication
|
|
authScript = pkgs.writeShellScriptBin "restic-auth" ''
|
|
. <(pass data/wasabi/restic-nixos | sed 's/^/export /')
|
|
${pkgs.restic}/bin/restic \
|
|
--password-command="pass data/backup/restic-nixos" \
|
|
--repo "${repository}" \
|
|
$@
|
|
'';
|
|
in
|
|
{
|
|
options.sbruder.restic.system = {
|
|
enable = lib.mkEnableOption "restic";
|
|
timerConfig = lib.mkOption {
|
|
type = with lib.types; attrsOf str;
|
|
default = {
|
|
OnCalendar = "20:00";
|
|
RandomizedDelaySec = "2h";
|
|
};
|
|
};
|
|
extraPaths = lib.mkOption {
|
|
type = lib.types.listOf lib.types.str;
|
|
default = [ ];
|
|
example = [ "/data" ];
|
|
};
|
|
extraExcludes = lib.mkOption {
|
|
type = lib.types.listOf lib.types.str;
|
|
default = [ ];
|
|
};
|
|
uploadLimit = lib.mkOption {
|
|
type = lib.types.nullOr lib.types.int;
|
|
default = 1500;
|
|
};
|
|
prune = lib.mkEnableOption "pruning";
|
|
};
|
|
|
|
config = lib.mkIf cfg.enable {
|
|
sops.secrets = {
|
|
restic-password = { };
|
|
restic-s3 = { };
|
|
};
|
|
|
|
services.restic.backups.system = {
|
|
inherit repository;
|
|
inherit (cfg) timerConfig;
|
|
passwordFile = config.sops.secrets.restic-password.path;
|
|
environmentFile = config.sops.secrets.restic-s3.path;
|
|
paths = [
|
|
"/etc"
|
|
"/home"
|
|
"/root"
|
|
"/srv"
|
|
"/var"
|
|
] ++ cfg.extraPaths;
|
|
extraBackupArgs = [
|
|
"--exclude-caches"
|
|
"--exclude-file=${excludesFile}"
|
|
"--tag system"
|
|
"--verbose"
|
|
] ++ lib.optional (cfg.uploadLimit != null) "--limit-upload=${toString cfg.uploadLimit}";
|
|
};
|
|
|
|
systemd.services."restic-backups-system".serviceConfig = {
|
|
"Nice" = 10;
|
|
"IOSchedulingClass" = "best-effort";
|
|
"IOSchedulingPriority" = 7;
|
|
};
|
|
|
|
services.restic.backups.system-prune = lib.mkIf cfg.prune {
|
|
inherit repository;
|
|
passwordFile = config.sops.secrets.restic-password.path;
|
|
environmentFile = config.sops.secrets.restic-s3.path;
|
|
timerConfig = {
|
|
OnCalendar = "*-1/2-07 03:00:00";
|
|
RandomizedDelaySec = "4h";
|
|
};
|
|
paths = [ ];
|
|
pruneOpts = [
|
|
"--keep-daily 7"
|
|
"--keep-monthly 12"
|
|
"--keep-weekly 5"
|
|
"--keep-yearly 10"
|
|
"--tag system"
|
|
"--verbose"
|
|
] ++ lib.optional (cfg.uploadLimit != null) "--limit-upload=${toString cfg.uploadLimit}";
|
|
};
|
|
|
|
environment.systemPackages = [
|
|
authScript
|
|
];
|
|
};
|
|
}
|