btrbk setup

1 files changed, 30 insertions, 0 deletions

diff --git a/nixos/hosts/apocalypse/backup.nix b/nixos/hosts/apocalypse/backup.nix
new file mode 100644
index 0000000..de22bd3
--- /dev/null
+++ b/nixos/hosts/apocalypse/backup.nix
@@ -0,0 +1,30 @@
+{ config, lib, pkgs, modulesPath, ...}:
+{
+  services.btrbk = {
+  instances."remote_vault" = {
+    onCalendar = "weekly";
+    settings = {
+      ssh_identity = "/etc/btrbk_key"; # NOTE: must be readable by user/group btrbk
+      ssh_user = "vault";
+      stream_compress = "lz4";
+      volume."/btrfs_root" = {
+        target = "ssh://10.100.0.1/vault/backups/apocalypse";
+        subvolume = { 
+          nixos = { 
+            snapshot_create = "always";
+          };  
+        };
+        # "nixos" could instead be an attribute set with other volumes to
+        # back up and to give subvolume specific configuration.
+        # See man btrbk.conf for possible options.
+        /*
+        subvolume = {
+          home = { snapshot_create = "always"; };
+          nixos = {};
+        };
+        */
+      };
+    };
+  };
+};
+}