outline: Configure backups

hosts/srv-public/default.nix

@@ -37,20 +37,21 @@
 
         forgejo = {
           enable = true;
-          doBackups = true;
           domain = "git.sstork.dev";
+          doBackups = true;
           ssh.enable = true;
         };
 
         hedgedoc = {
           enable = true;
-          doBackups = true;
           domain = "docs.${sproutedDomain}";
+          doBackups = true;
         };
 
         outline = {
           enable = true;
           domain = "wiki.${sproutedDomain}";
+          doBackups = true;
         };
 
         it-tools = {

modules/system/services/outline.nix

@@ -1,6 +1,14 @@
-{ config, lib, ... }:
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
 let
   cfg = config.custom.services.outline;
+
+  dataDir = "/var/lib/outline";
+  inherit (config.services.outline) user;
 in
 {
   options.custom.services.outline = {
@@ -13,6 +21,7 @@ in
       type = lib.types.port;
       default = 32886;
     };
+    doBackups = lib.mkEnableOption "";
   };
 
   config = lib.mkIf cfg.enable {
@@ -60,5 +69,14 @@ in
     };
 
     systemd.services.outline.enableStrictShellChecks = false;
+
+    custom.services.resticBackups.outline = lib.mkIf cfg.doBackups {
+      conflictingService = "outline.service";
+      paths = [ dataDir ];
+      extraConfig.backupPrepareCommand = ''
+        ${lib.getExe pkgs.sudo} --user=${user} ${lib.getExe' config.services.postgresql.package "pg_dump"} outline --format=custom --file=${dataDir}/db.dump
+      '';
+      restoreCommand.postRestore = "sudo --user=${user} pg_restore --clean --if-exists --dbname outline ${dataDir}/db.dump";
+    };
   };
 }