# iis-migration-to-ruvds

## Goal

Migrate 11 IIS sites from [[../entities/windows-recovery-host]] (DESKTOP-NSEF0UK) to RUVDS Windows Server 2025 Core. Убрать SPOF домашней машины.

**Pre-requisites done:**
- MSSQL+MinIO уже на [[../entities/vds-kzntsv]] (см [[mssql-minio-migration-to-vds]])
- RUVDS purchased: Windows Server 2025 Core, 2GB RAM, 30GB HDD, 1IP, DC Королёв
- RDP ready (credentials в secure storage)

## Target sites (11)

From [[../.wiki/concepts/recovery-architecture-snapshot]]:
- snolla.com
- pilorama98.ru
- labtools.ru / labtools.pro
- tandemmebel.ru
- emspb.ru
- kupimknigi.spb.ru (low-traffic — pilot candidate)
- on.snolla.com
- maljarka.tandemmebel.ru
- + 3 others (see source)

## Migration approach

1. **RDP-first setup** (RUVDS):
   - Verify .NET Framework 4.8 installed (`Get-ChildItem 'HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full\'`)
   - Verify IIS 10 installed (`Get-WindowsFeature Web-Server`)
   - Install URL Rewrite 2.1 (download + Server Manager cmd)
   - Configure firewall: allow 80/443 inbound
   - Test external MSSQL connection to VDS (89.253.255.94:1433)
   - Test external MinIO connection to VDS (minio.kzntsv.site:443)

2. **Backup source** (windows-recovery-host):
   - Export IIS configuration: `%systemroot%\system32\inetsrv\appcmd.exe list site -config > sites-backup.txt`
   - Export applicationHost.config: `C:\Windows\System32\inetsrv\config\applicationHost.config`
   - Backup inetpub\wwwroot\ (11 sites, ~100MB-1GB each)
   - Document Web.config connection strings (MSSQL/MinIO endpoints)

3. **Deploy to target** (RUVDS):
   - Create IIS sites matching source structure
   - Copy site contents (RDP drive mount or WinRM copy)
   - Update Web.config connection strings → point to VDS MSSQL/MinIO
   - Import SSL certificates (traefik LE certs) or setup new LE on IIS

4. **Pilot on kupimknigi.spb.ru**:
   - DNS pointing test (local hosts file or temporary DNS)
   - Smoke test: homepage + admin + database connectivity
   - 24h soak — monitor stability
   - If OK → proceed with remaining 10 sites

5. **DNS swap cutover**:
   - Update DNS A records → RUVDS IP
   - Monitor traefik logs on windows-recovery-host (should see 0 traffic)
   - Keep windows-recovery-host warm for 1 week rollback window

## Acceptance criteria

- [ ] RUVDS IIS serving all 11 sites
- [ ] All sites functional (no 500 errors, DB connectivity OK)
- [ ] DNS pointed to RUVDS
- [ ] 24h stability soak passed
- [ ] Rollback plan documented (revert DNS to home IP)
- [ ] windows-recovery-host VM shutdown / saved-state

## Open questions

- [ ] **RUVDS public IP** — assigned yet? Need for DNS A records.
- [ ] **SSL strategy** — use existing traefik LE certs (export?) or setup new LE on IIS?
- [ ] **Traefik на RUVDS?** — IIS-only (port 80/443 direct) или traefik reverse proxy again?
- [ ] **Backup strategy for RUVDS IIS** — VDS snapshot? IIS native backup?

## Notes

- **Windows Server 2025 Core** = GUI-less, PowerShell-only management. No Server Manager desktop.
- **2GB RAM constraint** — IIS + 11 sites = tight. Monitor memory after pilot.
- **Migration is transitional** — long-term snolla-on-node makes IIS obsolete. Don't over-engineer.

<!-- created-by: user-decision / 2026-05-22 / trigger: RUVDS purchased -->