Mark migration complete - Denver decommissioned Apr 2 2026
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# Migration Checklist — New GTHost Detroit Server
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# Migration Checklist — GTHost Detroit Server
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**New hardware:** Supermicro 2029TP-HTR, Intel Gold 6152 22c/44t, 192GB DDR4, 2x1.92TB SSD
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**New hardware:** Supermicro 2029TP-HTR, Intel Gold 6152 22c/44t, 192GB DDR4, 2x1.92TB SSD
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**Target OS:** Proxmox 9 ✅ installed by GTHost
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**Target OS:** Proxmox 9 ✅ installed by GTHost
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**Old server:** Denver, Silver 4116, $103/mo → cancel after migration confirmed
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**Old server:** Denver, Silver 4116, $103/mo → ✅ DECOMMISSIONED Apr 2, 2026
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---
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## Current Status (Mar 29 — in progress)
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## Migration Status — COMPLETE ✅
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- ✅ New server provisioned and up — Proxmox 9 installed
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Denver server has been decommissioned. OS reinstalled and disks striped to wipe all data.
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- ✅ PBS datastore disk resized to 1.1TB
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All services running on Detroit (GTHost, 66.163.115.x). Internal FQDNs active.
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- ✅ PBS datastore recreated fresh
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- ✅ Fresh backup of all VMs/containers completed Mar 29 ~08:34
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- ✅ Network bridges configured (vmbr0–vmbr6) on new host
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- ✅ OPNsense core router 9001 up
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- ✅ OPNsense zpack router 9002 up
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- ✅ zlh-dns 9010 up — Technitium config restored
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- ✅ zlh-proxy 9011 up — Caddy configured
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---
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---
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## Pre-Migration
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## What Was Done
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- [x] Export OPNsense config (both routers)
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- ✅ PBS datastore recreated + full backup of old host
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- [x] Delete old PBS datastore and recreate fresh
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- ✅ Network bridges (vmbr0–vmbr6) configured on new host
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- [x] Run fresh backup — all VMs/containers
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- ✅ OPNsense core router 9001 — fresh 26.1, config imported
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- [x] Verify all backups show green
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- ✅ OPNsense zpack router 9002 — fresh 26.1, config imported, NAT fixed
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- ✅ zlh-dns 9010 — Technitium, config restored, internal.zlh zone active
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- ✅ zlh-proxy 9011 — Caddy, core routing
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- ✅ zlh-zpack-proxy 9012 — Traefik v3.6.12, Cloudflare DNS-01 certs
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- ✅ zlh-artifacts 9014 — Caddy file server, content synced from B2
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- ✅ zpack-velocity 9015 — running
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- ✅ zlh-monitor 9016 — Prometheus, scrape targets updated
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- ✅ zlh-back 9017 — PBS, MGMT_LAN connected, backed up from B2
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- ✅ zpack-api 9020 — Node 22, MariaDB, Redis, FQDN migration done
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- ✅ zpack-portal 9021 — Next.js, FQDN migration done
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- ✅ Proxmox API permissions — apiuser@pve + ZLH-API/ZLH-API-CT roles
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- ✅ LXC base template 820 — working
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- ✅ Dev container provisioning — working end-to-end
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- ✅ Browser IDE — confirmed working at dev-XXXX.zerolaghub.dev
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- ✅ Internal FQDN migration — all services on internal.zlh
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- ✅ Denver server — OS wiped, disks striped, decommissioned
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---
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## Outstanding
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- [ ] aimeesites 9030 — content migration
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- [ ] zlh-connect 9013 — Twingate fresh connector
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- [ ] update.go compiled constant — fix hardcoded artifacts IP, recompile agent
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- [ ] Minecraft player connection test via Velocity
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- [ ] DNS cutover — Namecheap A record update when portal is ready for public launch
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- [ ] OPNsense firewall rule migration (26.1 new UI) — not urgent
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- [ ] Set DHCP reservations by MAC in OPNsense
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## Phase 1 — New Server Setup
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## New Host IPs
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See SCRATCH/new-host-ips.md for full IP table.
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- [x] Configure network bridges (vmbr0–vmbr6)
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- [ ] Set up VLANs
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- [ ] Add PBS as backup target on new server
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- [ ] Verify new server can see PBS backup repository
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---
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## Phase 2 — Restore VMs
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- [x] OPNsense core router 9001 — fresh 26.1 + config import + os-isc-dhcp
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- [x] OPNsense zpack router 9002 — fresh 26.1 + config import + os-isc-dhcp
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- [x] zlh-dns 9010 (Technitium)
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- [x] zlh-proxy 9011 (Caddy core)
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- [ ] zlh-zpack-proxy 9012 (Traefik game/dev edge)
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- [ ] zlh-monitor 9016 (Prometheus/Grafana)
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- [ ] zlh-artifacts 9014
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- [ ] zpac-api 9020
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- [ ] zpac-portal 9021
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- [ ] zlh-velocity 9015 (Minecraft proxy)
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- [ ] zlh-back 9017 (PBS)
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- [ ] zlh-connect 9013 (Twingate)
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- [ ] aimeesites 9030
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- [ ] Game/dev containers
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---
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## Phase 3 — Verification (est. 2-4 hrs)
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- [ ] Internal networking between VMs working
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- [ ] Portal loads
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- [ ] API responds
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- [ ] Twingate connector online — update connector to new server if needed
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- [ ] Dev container provisions and browser IDE loads
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- [ ] Game server provisions and Minecraft connects via Velocity
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- [ ] PBS backup runs successfully on new host
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- [ ] Monitoring shows all services
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---
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## Phase 4 — DNS Cutover (est. 30 mins)
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- [ ] Update Cloudflare A record for Velocity public IP
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- [ ] Update Cloudflare SRV records for Minecraft
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- [ ] Update any other DNS records pointing to old server IPs
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- [ ] Monitor for issues — 30 min observation window
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- [ ] Confirm everything stable
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---
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## Phase 5 — Cleanup
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- [ ] Cancel old Denver server (or let expire)
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- [ ] Update PROJECT_CONTEXT.md with new VM map and IPs
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- [ ] Update OPEN_THREADS.md — mark migration complete
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---
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## Notes
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- Everything runs on private IPs internally — no hardcoded public IP dependencies
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- DNS cutover is the only external change
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- Worst case: reinstall Proxmox 8 and repeat
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- IPMI available via GTHost panel for out-of-band access if needed
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- Proxmox 9 ships with kernel 6.14, LXC 6.0 — no API changes required
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- OPNsense 26.1: install os-isc-dhcp plugin BEFORE importing config (ISC DHCP no longer built-in)
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- Firewall rule migration assistant available in 26.1 — not urgent, do after everything is stable
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- Caddy used for 9011 (core proxy) instead of Traefik — simpler for static routes
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