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beatzaplentyandClaude Sonnet 4.6 f85c65870f Initial infrastructure mono-repo scaffold

Consolidates nixos, docker, raspi, and debian-configuration into a single
infrastructure-as-code repo. Includes:

- ansible/: full inventory + proxmox-hardening, freeipa, and raspberrypi
  roles (converted from debian-configuration bash scripts)
- terraform/: Proxmox VMs, Dynu DNS, Pi-hole (decommissioned stub),
  Docker container catalog — migrated from docker/infrastructure/terraform/
- stacks/docker/, stacks/raspi/, nixos/: placeholder READMEs pending
  git subtree population (see implementation plan)
- docs/: internal MkDocs site with architecture, network topology, runbooks,
  and drift-detection guide; external sanitized site
- scripts/: drift-detect.sh, docs-build.sh, install-hooks.sh, check-secrets.sh
- CI: secret-scan (push/PR), drift-detect (daily), docs-build (on change)
- Pi-hole removed throughout — DNS is FreeIPA, DHCP is router

See docs/internal/implementation-plan.md for the phased rollout after
pushing to Gitea.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UvNjoxTWEDkhXsd1Dq2ETP

2026-07-30 07:07:47 +10:00

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Network Topology

LAN segments

Subnet	VLAN	Purpose
`192.168.2.0/24`	(untagged/management)	Primary LAN — all host management interfaces
`192.168.10.0/29`	VLAN 10	HA cluster replication (Corosync ring, DRBD) — internal to pve1
`192.168.20.0/24`	VLAN 20	HA storage-client (iSCSI/NFS) — internal to pve1

Host IP assignments

Host	IP	Role
`pve1.sweet.home`	(assigned by router)	Proxmox hypervisor
`domain-controller.sweet.home`	`192.168.2.253`	FreeIPA server
`pihole.sweet.home`	see Pi-hole admin	DNS/DHCP server
`docker.sweet.home`	`192.168.2.225`	Docker app stack host
`nix-cache.sweet.home`	`192.168.2.224`	Nix binary cache
`pxe-boot.sweet.home`	`192.168.2.223`	PXE/TFTP/HTTP boot server
`tailscale-router.sweet.home`	`192.168.2.222`	Tailscale subnet router
`tor-relay.sweet.home`	`192.168.2.221`	Tor middle relay
`ha-server-1.sweet.home`	`192.168.2.228`	HA cluster node 1
`ha-server-2.sweet.home`	`192.168.2.227`	HA cluster node 2
HA LAN VIP (Pacemaker)	`192.168.2.229`	Floating NFS/service VIP
HA storage VIP (Pacemaker)	`192.168.20.229`	Docker iSCSI/NFS floating VIP
`raspberrypi.tail13f623.ts.net`	Tailscale	Raspberry Pi (reachable via Tailnet)

DNS architecture

Pi-hole has been decommissioned. FreeIPA is now the sole DNS server for the LAN.

All LAN clients → FreeIPA (domain-controller.sweet.home — 192.168.2.253)
    │
    ├── *.sweet.home → IPA integrated DNS (authoritative)
    └── Everything else → upstream resolvers (forwarded by FreeIPA)

PXE DHCP is handled by the pxe-boot LXC (dnsmasq in proxy mode for PXE chainloading only). General DHCP is handled by the router.

External access

Domain: *.lan.ddnsgeek.com → Dynamic DNS via Dynu → home WAN IP
TLS: LetsEncrypt via Traefik ACME (HTTP challenge)
Tailscale VPN: subnet router at 192.168.2.222 bridges Tailnet to LAN

Proxmox firewall

Default-deny inbound on all Proxmox nodes. Management access (SSH port 22, web UI port 8006) from 192.168.2.0/24 only. See ansible/roles/proxmox-hardening/templates/cluster-fw.j2 for the ruleset.

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