move calibre books to zfs directory

modules/nixos/services/calibre.nix

@@ -1,4 +1,10 @@
-{ config, pkgs, lib, ... }: {
+{ config, pkgs, lib, ... }:
+
+let
+
+  libraryPath = "/data/books";
+
+in {
 
   options = {
     bookServer = lib.mkOption {
@@ -6,6 +12,11 @@
       description = "Hostname for Calibre library";
       default = null;
     };
+    backups.calibre = lib.mkOption {
+      type = lib.types.bool;
+      description = "Whether to backup Calibre library";
+      default = true;
+    };
   };
 
   config = lib.mkIf (config.bookServer != null) {
@@ -17,6 +28,7 @@
         reverseProxyAuth.enable = false;
         enableBookConversion = true;
         enableBookUploading = true;
+        calibreLibrary = libraryPath;
       };
     };
 
@@ -30,7 +42,7 @@
     }];
 
     # Run a backup on a schedule
-    systemd.timers.calibre-backup = {
+    systemd.timers.calibre-backup = lib.mkIf config.backups.calibre {
       timerConfig = {
         OnCalendar = "*-*-* 00:00:00"; # Once per day
         Unit = "calibre-backup.service";
@@ -39,24 +51,22 @@
     };
 
     # Backup Calibre data to object storage
-    systemd.services.calibre-backup =
-      let libraryPath = "/var/lib/calibre-web"; # Default location
-      in {
-        description = "Backup Calibre data";
-        environment.AWS_ACCESS_KEY_ID = config.backup.s3.accessKeyId;
-        serviceConfig = {
-          Type = "oneshot";
-          User = "calibre-web";
-          Group = "backup";
-          EnvironmentFile = config.secrets.backup.dest;
-        };
-        script = ''
-          ${pkgs.awscli2}/bin/aws s3 sync \
-              ${libraryPath}/ \
-              s3://${config.backup.s3.bucket}/calibre/ \
-              --endpoint-url=https://${config.backup.s3.endpoint}
-        '';
+    systemd.services.calibre-backup = lib.mkIf config.backups.calibre {
+      description = "Backup Calibre data";
+      environment.AWS_ACCESS_KEY_ID = config.backup.s3.accessKeyId;
+      serviceConfig = {
+        Type = "oneshot";
+        User = "calibre-web";
+        Group = "backup";
+        EnvironmentFile = config.secrets.backup.dest;
       };
+      script = ''
+        ${pkgs.awscli2}/bin/aws s3 sync \
+            ${libraryPath}/ \
+            s3://${config.backup.s3.bucket}/calibre/ \
+            --endpoint-url=https://${config.backup.s3.endpoint}
+      '';
+    };
 
   };