build02: switch to new hardware

devdoc/hosts.md

@@ -11,10 +11,9 @@
 ### `build02`
 
 - Provider: Hetzner
-- Instance type:
-- CPU: AMD Ryzen 7 3700X Eight-Core Processor
-- RAM: 64GB DDR4 ECC
-- Drives: 2 x 1 TB NVME in RAID 1
+- CPU: AMD Ryzen 9 3900 12-Core Processor
+- RAM: 128GB DDR4 ECC
+- Drives: 2 x 1.92 TB NVME in RAID 0
 
 ### `build03`
 

hosts/build02/configuration.nix

@@ -8,20 +8,16 @@
     ./nixpkgs-update-backup.nix
     inputs.self.nixosModules.common
     inputs.self.nixosModules.builder
-    ./zfs.nix
+    inputs.self.nixosModules.disko-raid
   ];
 
-  # /boot is a mirror raid
-  boot.loader.grub.devices = [ "/dev/nvme0n1" "/dev/nvme1n1" ];
-  boot.loader.grub.enable = true;
-  boot.swraid.enable = true;
-  boot.loader.grub.extraConfig = "insmod mdraid1x";
+  nixCommunity.disko.raidLevel = 0; # more disk space, we don't have much state to restore anyway
 
   networking.hostName = "build02";
   networking.hostId = "af9ccc71";
   networking.nameservers = [ "1.1.1.1" "1.0.0.1" ];
 
-  systemd.network.networks."10-uplink".networkConfig.Address = "2a01:4f9:4a:2b02::1/64";
+  systemd.network.networks."10-uplink".networkConfig.Address = "2a01:4f9:3b:41d9::1";
 
-  system.stateVersion = "20.09";
+  system.stateVersion = "23.11";
 }

hosts/build02/zfs.nix

@@ -1,20 +0,0 @@
-{
-  fileSystems."/" = {
-    device = "zroot/root/nixos";
-    fsType = "zfs";
-  };
-
-  fileSystems."/home" = {
-    device = "zroot/root/home";
-    fsType = "zfs";
-    # We don't want servers to go in systemd rescue mode, but rather having
-    # failed mounts show up in monitoring
-    options = [ "nofail" ];
-  };
-
-  fileSystems."/boot" = {
-    device = "/dev/md127";
-    fsType = "ext4";
-    options = [ "nofail" ];
-  };
-}

modules/nixos/monitoring/alert-rules.nix

@@ -26,7 +26,7 @@
           annotations.description = "{{$labels.host}} should have a running {{$labels.name}}";
         };
 
-        SmartErrors.expr = lib.mkForce ''smart_device_health_ok{enabled!="Disabled", host!~"(build02|build01)"} != 1'';
+        SmartErrors.expr = lib.mkForce ''smart_device_health_ok{enabled!="Disabled", host!="build01"} != 1'';
       };
   };
 }

terraform/cloudflare_nix-community_org.tf

@@ -36,14 +36,14 @@ resource "cloudflare_record" "nix-community-org-build01-AAAA" {
 resource "cloudflare_record" "nix-community-org-build02-A" {
   zone_id = local.nix_community_zone_id
   name    = "build02"
-  value   = "95.217.109.189"
+  value   = "65.21.133.211"
   type    = "A"
 }
 
 resource "cloudflare_record" "nix-community-org-build02-AAAA" {
   zone_id = local.nix_community_zone_id
   name    = "build02"
-  value   = "2a01:4f9:4a:2b02::1"
+  value   = "2a01:4f9:3b:41d9::1"
   type    = "AAAA"
 }