add borg

modules/homelab/services/arr/default.nix.template

@@ -0,0 +1,61 @@
+{ pkgs, config, lib, ... }:
+
+let
+  cfg = config.modules.services.<service_name>;
+  ids = <gid_and_uid_number>;
+in
+{
+  options.modules.services.<service_name> = {
+    enable = lib.mkEnableOption "enables <service_name>";
+#    extra options
+#    mode = lib.mkOption {
+#      type = lib.types.enum [ "server" "client" ];
+#      default = "client";
+#      description = "whether syncthing should run as a client (user) or server (system-wide).";
+#    };
+
+  };
+
+  config = lib.mkIf cfg.enable {
+    
+    # declare <service_name> group
+    users.groups.<service_name> = { gid = ids; };
+
+    # declare <service_name> user
+    users.users.<service_name> = {
+      description = "<service_name> media server user";
+      uid = ids;
+      isSystemUser = true;
+      home = "/var/lib/<service_name>";
+      createHome = true;
+      group = "<service_name>";
+      extraGroups = [ "media" "video" "render" ];
+    };
+
+    # enable the <service_name> service
+    services.<service_name> = {
+      enable = true;
+      openFirewall = true;        # Opens 8096/8920 automatically
+      user = "<service_name>";          # Default: <service_name>
+      group = "<service_name>";         # Default: <service_name>
+      dataDir = "/var/lib/<service_name>"; # Config + metadata storage
+    };
+
+    # override umask to make permissions work out
+    systemd.services.<service_name>.serviceConfig = { UMask = lib.mkForce "0007"; };
+
+    # open firewall
+    #networking.firewall.allowedTCPPorts = [ 8096 ];
+
+    # reverse proxy entryo
+    services.nginx.virtualHosts."media.blakedheld.xyz" = {
+      enableACME = false;
+      forceSSL = true;
+      sslCertificate = config.sops.secrets."ssl_blakedheld_crt".path;
+      sslCertificateKey = config.sops.secrets."ssl_blakedheld_key".path;
+      locations."/" = {
+        proxyPass = "http://127.0.0.1:8096";
+      };
+    };
+  };
+}

modules/homelab/services/default.nix.template

@@ -4,17 +4,18 @@ let
   cfg = config.modules.services.<service_name>;
   ids = <gid_and_uid_number>;
   default_port = <port_number>;
+  data_dir = "/var/lib/<service_name>";
 in
 {
   options.modules.services.<service_name> = {
     enable = lib.mkEnableOption "enables <service_name>";
 
-#    set port options
-#    port = lib.mkOption {
-#      type = lib.types.int;
-#      default = cfg.default_port;
-#      description = "set port for <service_name> (default: ${toString default_port}";
-#    };
+    # set port options
+    port = lib.mkOption {
+      type = lib.types.int;
+      default = cfg.default_port;
+      description = "set port for <service_name> (default: ${toString default_port}";
+    };
 
   };
 
@@ -25,7 +26,7 @@ in
 
     # declare <service_name> user
     users.users.<service_name> = {
-      description = "<service_name> media server user";
+      description = "<service_name> server user";
       uid = ids;
       isSystemUser = true;
       home = "/var/lib/<service_name>";
@@ -37,21 +38,20 @@ in
     # enable the <service_name> service
     services.<service_name> = {
       enable = true;
-      openFirewall = true;        # Opens 8096/8920 automatically
-      user = "<service_name>";          # Default: <service_name>
-      group = "<service_name>";         # Default: <service_name>
-      dataDir = "/var/lib/<service_name>"; # Config + metadata storage
-      dataDir = "/var/lib/<service_name>"; # Config + metadata storage
-#      settings = {
-#        server.port = cfg.port;
-#      };
+      openFirewall = true;
+      user = "<service_name>";
+      group = "<service_name>";
+      dataDir = data_dir;
+      settings = {
+        server.port = cfg.port;
+      };
     };
 
     # override umask to make permissions work out
     systemd.services.<service_name>.serviceConfig = { UMask = lib.mkForce "0007"; };
 
-    # open firewall
-    #networking.firewall.allowedTCPPorts = [ port ];
+#    # open firewall
+#    networking.firewall.allowedTCPPorts = [ port ];
 
     # reverse proxy entryo
     services.nginx.virtualHosts."<service_name>.snowbelle.lan" = {
@@ -63,5 +63,8 @@ in
         proxyPass = "http://127.0.0.1:${toString port}";
       };
     };
+
+    # add to backups
+    modules.system.backups.paths = lib.mkIf cfg.backups [ data_dir ];
   };
 }

modules/system/backups.nix

@@ -0,0 +1,75 @@
+{ config, lib, pkgs, ... }:
+
+let
+  borg = "${pkgs.borgbackup}/bin/borg";
+  backup_paths = lib.unique config.modules.system.backups.paths;
+  passwd_file = config.sops.secrets."borg_passwd".path;
+in
+{
+  options.modules.system.backups = {
+    paths = lib.mkOption {
+      type = lib.types.listOf lib.types.path;
+      default = [];
+      description = "list of directories to back up";
+    };
+    repo = lib.mkOption {
+      type = lib.types.path;
+      default = "/backups";
+      description = "borg repository path";
+    };
+    passphraseFile = lib.mkOption {
+      type = lib.types.path;
+      default = passwd_file;
+      description = "borg repository passphrase file";
+    };
+  };
+
+  config = lib.mkIf (backup_paths != []) {
+    systemd.services.borg-backup = {
+      description = "BorgBackup service for system data";
+      serviceConfig = {
+        Type = "oneshot";
+        EnvironmentFile = config.modules.system.backups.passphraseFile;
+      };
+      script = ''
+        set -eux
+        export BORG_REPO=${config.modules.system.backups.repo}
+        export BORG_PASSPHRASE="$(cat ${config.modules.system.backups.passphraseFile})"
+
+        # Initialize repo if it doesn’t exist
+        if ! ${borg} info "${repo}" >/dev/null 2>&1; then
+          echo "Initializing new Borg repository at ${repo}"
+          ${borg} init --encryption=repokey "${repo}"
+        fi
+
+        timestamp=$(date +%Y-%m-%d_%H-%M-%S)
+
+        ${borg} create \
+          --stats \
+          --compression zstd,3 \
+          ::${timestamp} \
+          ${lib.concatStringsSep " " backup_paths}
+
+        # Retention policy
+        ${borg} prune -v --list \
+          --keep-daily=7 \
+          --keep-weekly=52 \
+          --keep-monthly=-1
+      '';
+    };
+
+    systemd.timers.borg-backup = {
+      description = "daily borg backup timer";
+      wantedBy = [ "timers.target" ];
+      timerConfig = {
+        OnCalendar = "daily";
+        Persistent = true;
+      };
+    };
+
+    environment.systemPackages = [ pkgs.borgbackup ];
+  };
+}
+
+# add to module
+# modules.system.backups.paths = lib.mkIf cfg.backups [ <path> ];