Rename modules directory system to nixos

2026-03-22 18:59:07 +01:00 · 2026-02-26 21:11:45 +01:00 · 2026-02-26 21:11:45 +01:00 · 1c1b9221fc
commit 1c1b9221fc
parent 653a6f310b
48 changed files with 1 additions and 1 deletions
--- a/modules/nixos/services/restic/backups.nix
+++ b/modules/nixos/services/restic/backups.nix
@ -0,0 +1,112 @@
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
+let
+  backups =
+    config.custom.services.restic.backups |> lib.attrValues |> lib.filter (backup: backup.enable);
+in
+{
+  options.custom.services.restic.backups = lib.mkOption {
+    type = lib.types.attrsOf (
+      lib.types.submodule (
+        { name, ... }:
+        {
+          options = {
+            enable = lib.mkEnableOption "" // {
+              default = true;
+            };
+            name = lib.mkOption {
+              type = lib.types.nonEmptyStr;
+              default = name;
+            };
+            conflictingService = lib.mkOption {
+              type = lib.types.nullOr lib.types.nonEmptyStr;
+              default = null;
+            };
+            paths = lib.mkOption {
+              type = lib.types.listOf lib.types.path;
+              default = [ ];
+            };
+            extraConfig = lib.mkOption {
+              type = lib.types.attrsOf lib.types.anything;
+              default = { };
+            };
+          };
+        }
+      )
+    );
+    default = { };
+  };
+
+  config = lib.mkIf (backups != [ ]) {
+    sops = {
+      secrets = {
+        "backblaze/key-id" = { };
+        "backblaze/application-key" = { };
+        "restic/password" = { };
+      };
+
+      templates."restic/environment".content = ''
+        AWS_ACCESS_KEY_ID=${config.sops.placeholder."backblaze/key-id"}
+        AWS_SECRET_ACCESS_KEY=${config.sops.placeholder."backblaze/application-key"}
+      '';
+    };
+
+    systemd.tmpfiles.rules =
+      backups |> lib.map (backup: "d /var/cache/restic-backups-${backup.name} 700 - - -");
+
+    services.restic.backups =
+      backups
+      |> lib.map (backup: {
+        inherit (backup) name;
+        value = lib.mkMerge [
+          {
+            inherit (backup) paths;
+            initialize = true;
+            repository = "s3:https://s3.eu-central-003.backblazeb2.com/stork-atlas/${backup.name}";
+            environmentFile = config.sops.templates."restic/environment".path;
+            passwordFile = config.sops.secrets."restic/password".path;
+            pruneOpts = [
+              "--keep-daily 7"
+              "--keep-weekly 4"
+              "--keep-monthly 6"
+            ];
+            timerConfig = {
+              OnCalendar = "03:00";
+              RandomizedDelaySec = "1h";
+            };
+          }
+          backup.extraConfig
+        ];
+      })
+      |> lib.listToAttrs;
+
+    systemd.services =
+      backups
+      |> lib.filter (backup: backup.conflictingService != null)
+      |> lib.map (backup: {
+        name = "restic-backups-${backup.name}";
+        value = {
+          unitConfig.Conflicts = [ backup.conflictingService ];
+          after = [ backup.conflictingService ];
+          onSuccess = [ backup.conflictingService ];
+          onFailure = [ backup.conflictingService ];
+        };
+      })
+      |> lib.listToAttrs;
+
+    environment.systemPackages =
+      let
+        backupAllScript = pkgs.writeShellApplication {
+          name = "restic-backup-all";
+          text = "systemctl start restic-backups-{${
+            backups |> lib.map (backup: backup.name) |> lib.concatStringsSep ","
+          }}";
+        };
+      in
+      [ backupAllScript ];
+  };
+}