ns1: recreate with OpenTofu workflow

Old VM had incorrect hardware-configuration.nix with hardcoded UUIDs
that didn't match actual disk layout, causing boot failure (emergency mode).

Recreated using template2-based configuration for OpenTofu provisioning.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docs/plans/ns1-recreation.md

@@ -0,0 +1,107 @@
+# ns1 Recreation Plan
+
+## Overview
+
+Recreate ns1 using the OpenTofu workflow after the existing VM entered emergency mode due to incorrect hardware-configuration.nix (hardcoded UUIDs that don't match actual disk layout).
+
+## Current ns1 Configuration to Preserve
+
+- **IP:** 10.69.13.5/24
+- **Gateway:** 10.69.13.1
+- **Role:** Primary DNS (authoritative + resolver)
+- **Services:**
+  - `../../services/ns/master-authorative.nix`
+  - `../../services/ns/resolver.nix`
+- **Metadata:**
+  - `homelab.host.role = "dns"`
+  - `homelab.host.labels.dns_role = "primary"`
+- **Vault:** enabled
+- **Deploy:** enabled
+
+## Execution Steps
+
+### Phase 1: Remove Old Configuration
+
+```bash
+nix develop -c create-host --remove --hostname ns1 --force
+```
+
+This removes:
+- `hosts/ns1/` directory
+- Entry from `flake.nix`
+- Any terraform entries (none exist currently)
+
+### Phase 2: Create New Configuration
+
+```bash
+nix develop -c create-host --hostname ns1 --ip 10.69.13.5/24
+```
+
+This creates:
+- `hosts/ns1/` with template2-based configuration
+- Entry in `flake.nix`
+- Entry in `terraform/vms.tf`
+- Vault wrapped token for bootstrap
+
+### Phase 3: Customize Configuration
+
+After create-host, manually update `hosts/ns1/configuration.nix` to add:
+
+1. DNS service imports:
+   ```nix
+   ../../services/ns/master-authorative.nix
+   ../../services/ns/resolver.nix
+   ```
+
+2. Host metadata:
+   ```nix
+   homelab.host = {
+     tier = "prod";
+     role = "dns";
+     labels.dns_role = "primary";
+   };
+   ```
+
+3. Disable resolved (conflicts with Unbound):
+   ```nix
+   services.resolved.enable = false;
+   ```
+
+### Phase 4: Commit Changes
+
+```bash
+git add -A
+git commit -m "ns1: recreate with OpenTofu workflow
+
+Old VM had incorrect hardware-configuration.nix with hardcoded UUIDs
+that didn't match actual disk layout, causing boot failure.
+
+Recreated using template2-based configuration for OpenTofu provisioning."
+```
+
+### Phase 5: Infrastructure
+
+1. Delete old ns1 VM in Proxmox (it's broken anyway)
+2. Run `nix develop -c tofu -chdir=terraform apply`
+3. Wait for bootstrap to complete
+4. Verify ns1 is functional:
+   - DNS resolution working
+   - Zone transfer to ns2 working
+   - All exporters responding
+
+### Phase 6: Finalize
+
+- Push to master
+- Move this plan to `docs/plans/completed/`
+
+## Rollback
+
+If the new VM fails:
+1. ns2 is still operational as secondary DNS
+2. Can recreate with different settings if needed
+
+## Notes
+
+- ns2 will continue serving DNS during the migration
+- Zone data is generated from flake, so no data loss
+- The old VM's disk can be kept briefly in Proxmox as backup if desired

flake.nix

@@ -65,15 +65,6 @@
     in
     {
       nixosConfigurations = {
-        ns1 = nixpkgs.lib.nixosSystem {
-          inherit system;
-          specialArgs = {
-            inherit inputs self;
-          };
-          modules = commonModules ++ [
-            ./hosts/ns1
-          ];
-        };
         ha1 = nixpkgs.lib.nixosSystem {
           inherit system;
           specialArgs = {
@@ -182,6 +173,15 @@
             ./hosts/ns2
           ];
         };
+        ns1 = nixpkgs.lib.nixosSystem {
+          inherit system;
+          specialArgs = {
+            inherit inputs self;
+          };
+          modules = commonModules ++ [
+            ./hosts/ns1
+          ];
+        };
       };
       packages = forAllSystems (
         { pkgs }:

hosts/ns1/configuration.nix

@@ -7,23 +7,38 @@
 
 {
   imports = [
-    ./hardware-configuration.nix
+    ../template2/hardware-configuration.nix
 
     ../../system
+    ../../common/vm
+
+    # DNS services
     ../../services/ns/master-authorative.nix
     ../../services/ns/resolver.nix
-    ../../common/vm
   ];
 
+  # Host metadata
+  homelab.host = {
+    tier = "prod";
+    role = "dns";
+    labels.dns_role = "primary";
+  };
+
+  # Enable Vault integration
+  vault.enable = true;
+
+  # Enable remote deployment via NATS
+  homelab.deploy.enable = true;
+
   nixpkgs.config.allowUnfree = true;
-  # Use the systemd-boot EFI boot loader.
   boot.loader.grub.enable = true;
-  boot.loader.grub.device = "/dev/sda";
+  boot.loader.grub.device = "/dev/vda";
 
   networking.hostName = "ns1";
   networking.domain = "home.2rjus.net";
   networking.useNetworkd = true;
   networking.useDHCP = false;
+  # Disable resolved - conflicts with Unbound resolver
   services.resolved.enable = false;
   networking.nameservers = [
     "10.69.13.5"
@@ -47,14 +62,6 @@
     "nix-command"
     "flakes"
   ];
-  vault.enable = true;
-  homelab.deploy.enable = true;
-
-  homelab.host = {
-    role = "dns";
-    labels.dns_role = "primary";
-  };
-
   nix.settings.tarball-ttl = 0;
   environment.systemPackages = with pkgs; [
     vim
@@ -68,5 +75,5 @@
   # Or disable the firewall altogether.
   networking.firewall.enable = false;
 
-  system.stateVersion = "23.11"; # Did you read the comment?
+  system.stateVersion = "25.11"; # Did you read the comment?
 }

hosts/ns1/hardware-configuration.nix

@@ -1,36 +0,0 @@
-{ config, lib, pkgs, modulesPath, ... }:
-
-{
-  imports =
-    [
-      (modulesPath + "/profiles/qemu-guest.nix")
-    ];
-
-  boot.initrd.availableKernelModules = [ "ata_piix" "uhci_hcd" "virtio_pci" "virtio_scsi" "sd_mod" "sr_mod" ];
-  boot.initrd.kernelModules = [ ];
-  # boot.kernelModules = [ ];
-  # boot.extraModulePackages = [ ];
-
-  fileSystems."/" =
-    {
-      device = "/dev/disk/by-uuid/6889aba9-61ed-4687-ab10-e5cf4017ac8d";
-      fsType = "xfs";
-    };
-
-  fileSystems."/boot" =
-    {
-      device = "/dev/disk/by-uuid/BC07-3B7A";
-      fsType = "vfat";
-    };
-
-  swapDevices =
-    [{ device = "/dev/disk/by-uuid/64e5757b-6625-4dd2-aa2a-66ca93444d23"; }];
-
-  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
-  # (the default) this is the recommended approach. When using systemd-networkd it's
-  # still possible to use this option, but it's recommended to use it in conjunction
-  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
-  # networking.interfaces.ens18.useDHCP = lib.mkDefault true;
-
-  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
-}

terraform/vault/approle.tf

@@ -67,12 +67,6 @@ locals {
     }
 
     # Wave 3: DNS servers
-    "ns1" = {
-      paths = [
-        "secret/data/hosts/ns1/*",
-        "secret/data/shared/dns/*",
-      ]
-    }
 
     # Wave 4: http-proxy
     "http-proxy" = {

terraform/vault/hosts-generated.tf

@@ -26,6 +26,11 @@ locals {
         "secret/data/shared/dns/*",
       ]
     }
+    "ns1" = {
+      paths = [
+        "secret/data/hosts/ns1/*",
+      ]
+    }
   
   }
 

terraform/vms.tf

@@ -65,6 +65,13 @@ locals {
       disk_size = "20G"
       vault_wrapped_token = "s.3nran1e1Uim4B1OomIWCoS4T"
     }
+    "ns1" = {
+      ip        = "10.69.13.5/24"
+      cpu_cores = 2
+      memory    = 2048
+      disk_size = "20G"
+      vault_wrapped_token = "s.b6ge0KMtNQctdKkvm0RNxGdt"
+    }
   }
 
   # Compute VM configurations with defaults applied