Keep a yearly Borg archive and for the past 12 months

Adjust backup timings
Convert borgmatic config from Nix

configuration.nix

@@ -79,6 +79,7 @@
       rsync
       fio
       libva-utils
+      jq
     ];
 
     boot = lib.mkIf (! machine.isRaspberryPi) {

kubenix-modules/custom/longhorn-volume.nix

@@ -23,6 +23,8 @@ in
           spec = {
             accessModes = [ "ReadWriteOnce" ];
             capacity.storage = longhornVolume.storage;
+            persistentVolumeReclaimPolicy = "Delete";
+            volumeMode = "Filesystem";
 
             claimRef = {
               inherit name;
@@ -32,24 +34,22 @@ in
             csi = {
               driver = "driver.longhorn.io";
               fsType = "ext4";
+              volumeHandle = name;
 
               volumeAttributes = {
                 dataLocality = "disabled";
                 fromBackup = "";
                 fsType = "ext4";
                 numberOfReplicas = "2";
+                staleReplicaTimeout = "30";
+                unmapMarkSnapChainRemoved = "ignored";
+
                 recurringJobSelector = lib.generators.toYAML { } [{
                   name = "backup-nfs";
                   isGroup = false;
                 }];
-                staleReplicaTimeout = "30";
-                unmapMarkSnapChainRemoved = "ignored";
               };
-              volumeHandle = name;
             };
-
-            persistentVolumeReclaimPolicy = "Delete";
-            volumeMode = "Filesystem";
           };
         })
         config.lab.longhornVolumes;

nixos-modules/backups.nix

@@ -10,41 +10,55 @@ let
   '';
 
   borgmaticConfig = pkgs.writeTextFile {
-    name = "borgmatic-config";
+    name = "borgmatic-config.yaml";
-    text = ''
+
-      source_directories:
+    text = lib.generators.toYAML { } {
-      - ${cfg.snapshotLocation}
+      source_directories = [ cfg.snapshotLocation ];
-      repositories:
+
-      - path: ${cfg.repoLocation}
+      repositories = [
-        label: nfs
+        {
-      - path: ssh://s6969ym3@s6969ym3.repo.borgbase.com/./repo
+          path = cfg.repoLocation;
-        label: borgbase
+          label = "nfs";
-      exclude_patterns:
+        }
-        - ${cfg.snapshotLocation}/media
+        {
-      ssh_command: "${pkgs.openssh}/bin/ssh -i ${config.age.secrets."borgbase.pem".path} -o StrictHostKeychecking=no"
+          path = "ssh://s6969ym3@s6969ym3.repo.borgbase.com/./repo";
-      keep_daily: 7
+          label = "borgbase";
-      keep_weekly: 4
+        }
-      keep_monthly: 6
+      ];
-      encryption_passcommand: "${pkgs.coreutils}/bin/cat ''${BORG_PASSPHRASE_FILE}"
+
-      before_everything:
+      exclude_patterns = [ "${cfg.snapshotLocation}/media" ];
-      - ${beforeEverything}/bin/beforeEverything
+      ssh_command = "${pkgs.openssh}/bin/ssh -i ${config.age.secrets."borgbase.pem".path} -o StrictHostKeychecking=no";
-      postgresql_databases:
+      keep_daily = 7;
-      - name: nextcloud
+      keep_weekly = 4;
-        hostname: lewis.dmz
+      keep_monthly = 12;
-        username: nextcloud
+      keep_yearly = -1;
-        password: ''${NEXTCLOUD_DATABASE_PASSWORD}
+      encryption_passcommand = "${pkgs.coreutils}/bin/cat ${config.age.secrets."borg_passphrase".path}";
-        format: tar
+      before_everything = [ "${beforeEverything}/bin/beforeEverything" ];
-      - name: hedgedoc
+
-        hostname: lewis.dmz
+      postgresql_databases = [
-        username: hedgedoc
+        {
-        password: ''${HEDGEDOC_DATABASE_PASSWORD}
+          name = "nextcloud";
-        format: tar
+          hostname = "lewis.dmz";
-      - name: paperless
+          username = "nextcloud";
-        hostname: lewis.dmz
+          password = "\${NEXTCLOUD_DATABASE_PASSWORD}";
-        username: paperless
+          format = "tar";
-        password: ''${PAPERLESS_DATABASE_PASSWORD}
+        }
-        format: tar
+        {
-    '';
+          name = "hedgedoc";
+          hostname = "lewis.dmz";
+          username = "hedgedoc";
+          password = "\${HEDGEDOC_DATABASE_PASSWORD}";
+          format = "tar";
+        }
+        {
+          name = "paperless";
+          hostname = "lewis.dmz";
+          username = "paperless";
+          password = "\${PAPERLESS_DATABASE_PASSWORD}";
+          format = "tar";
+        }
+      ];
+    };
   };
 in
 {
@@ -116,7 +130,7 @@ in
       timerConfig = {
         OnCalendar = "*-*-* 3:00:00";
         Persistent = true;
-        RandomizedDelaySec = "3h";
+        RandomizedDelaySec = "1h";
       };
     };
 

nixos-modules/k3s/default.nix

@@ -41,7 +41,6 @@ in {
       k3s
       openiscsi # Required for Longhorn
       nfs-utils # Required for Longhorn
-      jq # Required for Longhorn
     ];
 
     networking = {