1 files changed, 86 insertions, 24 deletions
diff --git a/os/srv/backup.nix b/os/srv/backup.nix
index dad9b66..3d1d583 100644
--- a/os/srv/backup.nix
+++ b/os/srv/backup.nix
@@ -1,32 +1,94 @@
-{ config, lib, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
 let
-  cfg = config.os.srv.backup;
+  cfg = config.os.srv.replication;
+  pgLockScript = pkgs.writeScriptBin "pg-lock" ''
+    #!/bin/sh
+    microvm -s database-vm -- sudo -u postgres psql -c "SELECT pg_backup_start('sanoid_snap');"
+  '';
+
+  pgUnlockScript = pkgs.writeScriptBin "pg-unlock" ''
+    #!/bin/sh
+    microvm -s database-vm -- sudo -u postgres psql -c "SELECT pg_backup_stop();"
+  '';
 in
 {
-  options.os.srv.backup.enable = lib.mkEnableOption "enables backups";
+  options.os.srv.replication.enable = lib.mkEnableOption "enables replications";
   config = lib.mkIf cfg.enable {
-    services.sanoid = {
-      enable = true;
-      templates.production = {
-        hourly = 36;
-        daily = 30;
-        monthly = 3;
-      };
-      datasets."zroot/rpool/appdata/databases".useTemplate = [ "production" ];
-      datasets."ztank/vault".useTemplates = [ "production" ];
-    };
-    services.syncoid = {
-      enable = true;
-      commands = {
-        "sync-db" = {
-          source = "zroot/rpool/appdata/databases";
-          target = "ztank/backups/nvme/databases";
-          sendOptions = "w";
+    services = {
+      sanoid = {
+        enable = true;
+        templates.production = {
+          autosnap = true;
+          autoprune = true;
+          hourly = 24;
+          daily = 7;
+          weekly = 4;
+          monthly = 3;
         };
-        "sync-configs" = {
-          source = "zroot/rpool/appdata/configs";
-          target = "ztank/backups/nvme/configs";
-          sendOptions = "w";
+        datasets = {
+          "zroot/rpool/appdata/db/postgres" = {
+            useTemplate = [ "production" ];
+
+            pre_snapshot_script = "${pgLockScript}/bin/pg-lock";
+            post_snapshot_script = "${pgUnlockScript}/bin/pg-unlock";
+            no_inconsistent_snapshot = true;
+            force_post_snapshot_script = true;
+            script_timeout = 30;
+          };
+
+          "zroot/rpool/appdata/db/redis".useTemplate = [ "production" ];
+
+          "zroot/rpool/appdata/db/couchdb".useTemplate = [ "production" ];
+
+          "zroot/rpool/appdata/cfg".useTemplate = [ "production" ];
+
+          "zroot/rpool/appdata/games".useTemplate = [ "production" ];
+
+          "zroot/rpool/appdata/mail".useTemplate = [ "production" ];
+
+          "zroot/rpool/containers".useTemplate = [ "production" ];
+        };
+      };
+
+      syncoid = {
+        enable = true;
+        commonArgs = [
+          "-w"
+          "--delete-target-snapshots"
+          "--use-hold"
+          "--no-sync-snap"
+        ];
+        commands = {
+          "sync-databases" = {
+            source = "zroot/rpool/appdata/db";
+            target = "tank/ztank/backup/nvme/db";
+            recursive = true;
+          };
+
+          "sync-config" = {
+            source = "zroot/rpool/appdata/cfg";
+            target = "tank/ztank/backup/nvme/cfg";
+          };
+
+          "sync-games" = {
+            source = "zroot/rpool/appdata/games";
+            target = "tank/ztank/backup/nvme/games";
+          };
+
+          "sync-mail" = {
+            source = "zroot/rpool/appdata/mail";
+            target = "tank/ztank/backup/nvme/mail";
+          };
+
+          "sync-docker" = {
+            source = "zroot/rpool/containers";
+            target = "tank/ztank/backup/nvme/containers";
+          };
         };
       };
     };