From 21376db87b031e1109357b09a0adb49213cbdf5e Mon Sep 17 00:00:00 2001
From: Kabbone <tobias@opel-online.de>
Date: Sun, 29 Oct 2023 09:46:49 +0100
Subject: [PATCH] hosts: nasbak: add remote btrbk

---
 hosts/desktop/hardware-configuration.nix   |  4 +--
 hosts/jupiter/hardware-configuration.nix   |  4 +--
 hosts/nasbackup/hardware-configuration.nix | 34 ++++++++++++++++++++++
 modules/hardware/backup.nix                | 15 ++++++++++
 4 files changed, 53 insertions(+), 4 deletions(-)
 create mode 100644 modules/hardware/backup.nix

diff --git a/hosts/desktop/hardware-configuration.nix b/hosts/desktop/hardware-configuration.nix
index 3f572a2..effb381 100644
--- a/hosts/desktop/hardware-configuration.nix
+++ b/hosts/desktop/hardware-configuration.nix
@@ -14,8 +14,8 @@
 
 {
   imports =
-    [ (modulesPath + "/installer/scan/not-detected.nix")
-    ];
+    [ (modulesPath + "/installer/scan/not-detected.nix")] ++
+      [( import ../../modules/hardware/backup.nix )];
 
   boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "nvme" "usb_storage" "usbhid" "sd_mod" ];
   boot.initrd.kernelModules = [ "vfio_pci" "vfio" "vfio_iommu_type1" ];
diff --git a/hosts/jupiter/hardware-configuration.nix b/hosts/jupiter/hardware-configuration.nix
index 9df0bae..f4d7d06 100644
--- a/hosts/jupiter/hardware-configuration.nix
+++ b/hosts/jupiter/hardware-configuration.nix
@@ -14,8 +14,8 @@
 
 {
   imports =
-    [ (modulesPath + "/profiles/qemu-guest.nix")
-    ];
+    [(modulesPath + "/profiles/qemu-guest.nix")] ++
+      [( import ../../modules/hardware/backup.nix )];
 
   boot.initrd.availableKernelModules = [ "uhci_hcd" "ehci_pci" "ahci" "virtio_pci" "virtio_scsi" "sr_mod" "virtio_blk" ];
   boot.initrd.kernelModules = [  ];
diff --git a/hosts/nasbackup/hardware-configuration.nix b/hosts/nasbackup/hardware-configuration.nix
index 8a6ea82..be9ac14 100644
--- a/hosts/nasbackup/hardware-configuration.nix
+++ b/hosts/nasbackup/hardware-configuration.nix
@@ -49,6 +49,7 @@
   };
 
   services.btrbk = {
+      extraPackages = [ pkgs.lz4 ];
       instances = {
           hf = {
               onCalendar = "hourly";
@@ -72,6 +73,39 @@
                   };
               };
           };
+          bak = {
+              stream_compress = "lz4";
+              onCalendar = "weekly";
+              settings = {
+                  incremental = "yes";
+                  snapshot_create = "no";
+                  snapshot_dir = "@snapshots";
+                  timestamp_format = "long";
+
+                  snapshot_preserve_min = "all";
+                  target_preserve_min = "no";
+                  target_preserve = "4w 2m";
+
+                  ssh_identity = "/etc/btrbk/ssh/id_ed25512_btrbk";
+                
+                  volume =  {
+                      "ssh://jupiter.home.opel-online.de/mnt/snapshots/Mars" = {
+                          target = "/mnt/nas/Backups/nas/Mars";
+                          subvolume = {
+                              "@nas" = {};
+                          };
+                      };
+                  };
+                  volume =  {
+                      "ssh://jupiter.home.opel-online.de/mnt/snapshots/Pluto" = {
+                          target = "/mnt/nas/Backups/nas/Pluto";
+                          subvolume = {
+                              "@" = {};
+                          };
+                      };
+                  };
+              };
+          };
 #          lf = {
 #              onCalendar = "daily";
 #              settings = {
diff --git a/modules/hardware/backup.nix b/modules/hardware/backup.nix
new file mode 100644
index 0000000..94574ee
--- /dev/null
+++ b/modules/hardware/backup.nix
@@ -0,0 +1,15 @@
+
+
+{ config, lib, pkgs, ... }:
+
+{
+  services.btrbk = {
+    sshAccess = [
+      {
+        key = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDU2NJ9xwYnp6/frIOv96ih8psiFcC2eOQeT+ZEMW5rq";
+        roles = [ "source" "info" "send" ];
+      }
+    ];
+    extraPackages = [ pkgs.lz4 ];
+  };
+}