NixOS/specs/004-vps-migration/quickstart.md

# Quickstart: VPS Migration

## Prerequisites

- Access to this repo and the new VPS host configuration
- Existing iptables ruleset file available at repo root: `iptables`
- VPN keys present in the secrets system
- SSH public keys present in `secrets/ssh/`

## Steps

1. Review the spec and clarifications:
   - `/home/jawz/Development/NixOS/specs/004-vps-migration/spec.md`

2. Ensure secrets are available:
   - VPN private/public keys are stored in the secrets system
   - `secrets/ssh/ed25519_deploy.pub` and `secrets/ssh/ed25519_lidarr-reports.pub` exist

3. Update host configuration:
   - Set new VPS as primary reverse proxy host
   - Enable proxying for all enabled services (services remain on host server)
   - Apply iptables ruleset as-is
   - Enable wireguard on VPS and expose port
   - Add service users and admin SSH keys
   - Update VPS public IP to `45.33.0.228` in SSH configuration
   - Update host server VPN client to target the new VPS

4. Provide and review legacy proxy config snapshot:
   - Supply caddy files for subdomain comparison
   - Treat caddy as migration input only; nginx is the only proxy target for NixOS runtime

## Caddy vs Nix Subdomain Comparison (from provided caddy/ directory)

**Caddy-only domains (present in caddy, not found in current Nix server hosts):**
- danilo-reyes.com
- www.danilo-reyes.com
- blog.danilo-reyes.com
- www.blog.danilo-reyes.com
- mb-report.lebubu.org
- torrent.lebubu.org

**Nix-only domains (present in Nix server hosts, not in caddy config):**
- auth-proxy.lebubu.org
- comments.danilo-reyes.com
- flix.rotehaare.art
- 55a608953f6d64c199.lebubu.org
- pYLemuAfsrzNBaH77xSu.lebubu.org
- bookmarks.lebubu.org
- drpp.lebubu.org
- portfolio.lebubu.org
- qampqwn4wprhqny8h8zj.lebubu.org
- requests.lebubu.org
- start.lebubu.org
- sync.lebubu.org
- tranga.lebubu.org

**Notes:**
- `auth-proxy.lebubu.org` appears only in `15-private.caddyfile__` (not imported by Caddy), so it is currently inactive in caddy.
- `danilo-reyes.com` and `blog.danilo-reyes.com` are handled as static sites in caddy; Nix has `my.websites.portfolio` and `isso` which may need mapping to these domains.
- `mb-report.lebubu.org` and `torrent.lebubu.org` are present in caddy but no matching Nix server host was found.

5. Migrate analytics data:
   - Identify the analytics system (e.g., Plausible) and its data store location or database
   - Freeze writes during export (stop the analytics service or enable maintenance mode)
   - Export analytics data from the existing server (db dump or data directory archive)
   - Transfer the export to the new server using the secure path already used for secrets/config
   - Import the data on the new server and restart the analytics service
   - Validate historical data is present (date range coverage, dashboard counts, and sample events)

6. Run verification steps for each task (per spec FR-012).

## Clarification Candidates From History Review

- `opentracker` was installed and enabled (`systemctl enable --now opentracker`) with firewall rules for TCP/UDP `6969`; confirm if tracker service is still required on NixOS.
- `ip6tables` was enabled on Fedora (`systemctl enable ip6tables`); confirm if equivalent IPv6 policy is required on VPS.
- `net.ipv4.conf.wg0.rp_filter=0` was set during forwarding troubleshooting; confirm if this sysctl needs to be persisted on VPS.
- Fedora-specific SELinux SSH port handling (`semanage ssh_port_t`) appears in history; confirm it can remain excluded on NixOS.

## Verification Steps

- **T001**: `test -f ./iptables && test -f ./secrets/ssh/ed25519_deploy.pub && test -f ./secrets/ssh/ed25519_lidarr-reports.pub && test -f ./secrets/wireguard.yaml`
- **T002**: verify this section exists in `/home/jawz/Development/NixOS/specs/004-vps-migration/quickstart.md`
- **T003**: `rg -n "mainServer|enableProxy" hosts/server/toggles.nix modules/modules.nix`
- **T004**: `rg -n "wireguard|wg0|services.wireguard" modules/services/wireguard.nix hosts/vps/configuration.nix`
- **T005**: `rg -n "vps|45.33.0.228|programs.ssh" config/jawz.nix modules/modules.nix`
- **T006**: `rg -n "/etc/caddy/Caddyfile.d" sudo_hist jawz_hist`
- **T007**: `rg -n 'mainServer = "vps"' hosts/server/toggles.nix modules/modules.nix`
- **T008**: `rg -n "enableProxy = true" hosts/vps/toggles.nix hosts/vps/configuration.nix hosts/server/toggles.nix`
- **T009**: ensure Caddy vs Nix comparison section remains in this file
- **T010**: `rg -n "iqQCY4iAWO-ca/pem|certPath|proxyReversePrivate" modules/network/nginx.nix modules/servers`
- **T011**: `rg -n "iptables.rules|iptables-restore|networking.firewall.enable = false" hosts/vps/configuration.nix`
- **T012**: `rg -n "services.wireguard.enable = true" hosts/vps/configuration.nix`
- **T013**: confirm `wireguard/private` exists in `secrets/wireguard.yaml`
- **T014**: `rg -n "10.77.0.1/24|10.8.0.1/24|10.9.0.1/24|AllowedIPs|allowedIPs" modules/services/wireguard.nix`
- **T015**: `rg -n "users\\.deploy|users\\.lidarr-reports|ed25519_deploy|ed25519_lidarr-reports" hosts/vps/configuration.nix`
- **T016**: `rg -n "workstation|server|deacero|galaxy" hosts/vps/configuration.nix`
- **T017**: `rg -n "ports = \\[ 3456 \\]|PermitRootLogin = \"no\"" hosts/vps/configuration.nix`
- **T018**: `rg -n "sudo-rs\\.extraRules|nixos-rebuild|nixremote" hosts/vps/configuration.nix`
- **T019**: `rg -n "nixworkstation" hosts/vps/configuration.nix`
- **T020**: `rg -n "45\\.33\\.0\\.228" modules/modules.nix config/jawz.nix`
- **T021**: `rg -n "endpoint = .*my\\.ips\\.vps" hosts/server/configuration.nix`
- **T022**: verify "Clarification Candidates From History Review" section exists in this file
- **T023**: `rg -n "Migrate analytics data|Export analytics|Import.*analytics|Validate historical data" /home/jawz/Development/NixOS/specs/004-vps-migration/quickstart.md`
- **T024**: verify each task from T001-T026 has a corresponding verification line in this section
- **T025**: `rg -n "caddy|Caddy" README.org docs || true` and confirm no active-proxy references remain outside legacy migration notes
- **T026**: `rg -n "T0[0-2][0-9]" /home/jawz/Development/NixOS/specs/004-vps-migration/tasks.md` and confirm each task mentions at least one concrete path