From f2740e87a0bfc0c35c24ac75fbb5ea7c6a7f6b6c Mon Sep 17 00:00:00 2001
From: oqyude <oqyude@gmail.com>
Date: Sat, 4 Jul 2026 00:53:14 +0300
Subject: [PATCH] node backup added

---
 modules/containers/3x-ui.nix |  3 +-
 modules/users.nix            |  2 +-
 modules/vds/default.nix      |  6 +++
 modules/vds/systemd.nix      | 94 ++++++++++++++++++++++++++++++++++++
 4 files changed, 103 insertions(+), 2 deletions(-)
 create mode 100644 modules/vds/systemd.nix

diff --git a/modules/containers/3x-ui.nix b/modules/containers/3x-ui.nix
index 289ab39..6bc8bec 100644
--- a/modules/containers/3x-ui.nix
+++ b/modules/containers/3x-ui.nix
@@ -98,11 +98,12 @@
     # Folders
     tmpfiles.rules = [
       "d /mnt 0755 root root -"
-      "d /mnt/containers 0755 root root -"
+      "d /mnt/services 0755 root root -"
       "d /mnt/services/containers 0755 root root -"
       "d /mnt/services/containers/3x-ui 0755 root root -"
       "d /mnt/services/containers/3x-ui/cert 0755 root root -"
       "d /mnt/services/containers/3x-ui/db 0755 root root -"
+      "Z /mnt/services/containers/3x-ui 0755 root root -"
     ];
   };
 
diff --git a/modules/users.nix b/modules/users.nix
index 8b7af16..8633ff4 100644
--- a/modules/users.nix
+++ b/modules/users.nix
@@ -92,7 +92,7 @@
       ssh_key_public_root = {
         format = "yaml";
         key = "ssh_key_public";
-        path = "/root/.ssh/id_ed25519";
+        path = "/root/.ssh/id_ed25519.pub";
         owner = "root";
         group = "root";
         mode = "0655";
diff --git a/modules/vds/default.nix b/modules/vds/default.nix
index fbb4dac..7b76310 100644
--- a/modules/vds/default.nix
+++ b/modules/vds/default.nix
@@ -7,8 +7,14 @@
     ../containers/3x-ui.nix
     ./nginx.nix
     ./samba.nix
+    ./systemd.nix
     # ./glances.nix
     # ./netbird.nix
     # ./xray.nix
   ];
+  systemd.tmpfiles.rules = [
+    "d /mnt 0755 root root -"
+    "d /mnt/services 0755 root root -"
+    "d /mnt/services/containers 0755 root root -"
+  ];
 }
diff --git a/modules/vds/systemd.nix b/modules/vds/systemd.nix
new file mode 100644
index 0000000..c830c49
--- /dev/null
+++ b/modules/vds/systemd.nix
@@ -0,0 +1,94 @@
+{
+  config,
+  lib,
+  pkgs,
+  xlib,
+  ...
+}:
+let
+  serviceName = "rsync-services-sync";
+  serverAddress = "oqyude@100.64.0.0";
+  serverDir = "/mnt/services/nodes/vds";
+  nodeDir = "/mnt/services";
+in
+{
+  systemd = {
+    services = {
+      "${serviceName}" = {
+        description = "Bidirectional rsync";
+        unitConfig.RequiresMountsFor = [ ];
+        after = [ "network-online.target" ];
+        wants = [ "network-online.target" ];
+        wantedBy = [ "multi-user.target" ];
+        script = ''
+          set -euo pipefail
+
+          RSYNC="${pkgs.rsync}/bin/rsync"
+          SSH="${pkgs.openssh}/bin/ssh"
+
+          SSH_CMD="$SSH \
+            -o BatchMode=yes \
+            -o ConnectTimeout=5 \
+            -o StrictHostKeyChecking=no"
+
+          echo "Waiting for server..."
+
+          for i in $(seq 1 60); do
+            echo "Attempt $i"
+
+            if $SSH_CMD ${serverAddress} true >/dev/null 2>&1; then
+              echo "Server available"
+              break
+            fi
+
+            sleep 5
+          done
+
+          # final check
+          $SSH_CMD ${serverAddress} true >/dev/null 2>&1
+
+          mkdir -p "${nodeDir}"
+
+          if [ ! -d "${nodeDir}" ] || [ -z "$(ls -A "${nodeDir}")" ]; then
+            echo "Pull <- ${serverAddress}"
+
+            mkdir -p "${nodeDir}"
+
+            $RSYNC \
+              -e "$SSH_CMD" \
+              -a \
+              "${serverAddress}:${serverDir}/" \
+              "${nodeDir}/"
+          else
+            echo "Push -> ${serverAddress}"
+
+            $RSYNC \
+              -e "$SSH_CMD" \
+              -a \
+              --delete \
+              "${nodeDir}/" \
+              "${serverAddress}:${serverDir}/"
+          fi
+        '';
+        serviceConfig = {
+          Type = "oneshot";
+          User = "root";
+          Group = "root";
+          Nice = 10;
+          CPUQuota = "5%";
+          IOSchedulingClass = "idle";
+        };
+      };
+    };
+    timers = {
+      "${serviceName}" = {
+        wantedBy = [ "timers.target" ];
+        timerConfig = {
+          OnCalendar = "daily";
+          Persistent = true;
+          Unit = "${serviceName}.service";
+        };
+      };
+    };
+  };
+}