docs: move ns1-recreation plan to completed

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

docs/plans/completed/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