chore(infra): bootstrap racknerd and configure multi-node garage cluster

- Bootstrapped microvm-racknerd node on its live Tailscale IP 100.80.39.40.
- Connected racknerd to the central QFox cluster.
- Assigned racknerd to its own vps zone with 1G capacity.
- Made garage-cluster-init.sh robust and idempotent.
- Updated comments and topology mappings.

Build: 3313 jobs, 0 errors (lake build)

4-Infrastructure/AGENTS.md

@@ -86,7 +86,7 @@ Dynamo-style S3-compatible store written in Rust. Replaced rclone serve s3.
 | 361395-1 (old cupfox) | 100.110.163.82 | Netcup VPS, 2 vCPU EPYC-Genoa | 125 GB | key OK (recovered) |
 | rs-vps (netcup) | — | Lean LSP, Python LSP, Ollama, Jellyfin, k3s (ARM64) | 2 TB | SSH via password (creds in 1Password) |
 | nixos-laptop | 100.102.173.61 | Authentik SSO, Uptime Kuma, storage node, AMD GPU compute | 459 GB NVMe | key OK |
-| microvm-racknerd | 100.101.247.127 | Caddy reverse proxy, Homer dashboard, chat placeholder, auth alias | 9.1 GB | root password OK |
+| microvm-racknerd | 100.80.39.40 | Caddy reverse proxy, Homer dashboard, chat placeholder, storage node (RackNerd VPS) | 9.1 GB | key OK |
 | nixos-steamdeck-1 | 100.85.244.73 | GPU compute, planned edge LLM (3B-7B), RDNA 2 | NixOS | just onboarded |
 | dracocomp | 100.100.140.27 | offline | — | unreachable (3+ days)
 

4-Infrastructure/storage/garage/garage-cluster-init.sh

@@ -79,7 +79,7 @@ $G layout show 2>&1
 LAYOUT_VERSION=$($G layout show 2>&1 | grep "^Current cluster layout version" | awk '{print $NF}' || echo 1)
 NEXT_VERSION=$((LAYOUT_VERSION + 1))
 
-$G status 2>&1 | grep "NO ROLE ASSIGNED" | awk '{print $1}' | while read node_id; do
+$G status 2>&1 | (grep "NO ROLE ASSIGNED" || true) | awk '{print $1}' | while read node_id; do
     HOSTNAME=$($G status 2>&1 | grep "$node_id" | awk '{print $2}')
     # Assign zone: VPS nodes get zone=vps, local Tailscale nodes get zone=local
     if echo "$HOSTNAME $node_id" | grep -qi "microvm\|racknerd\|vps"; then
@@ -92,8 +92,9 @@ $G status 2>&1 | grep "NO ROLE ASSIGNED" | awk '{print $1}' | while read node_id
 done
 
 # ── 4. Bump replication factor if enough nodes ────────────────────────────────
-if [ "$HEALTHY_NODES" -ge 3 ]; then
-    log "3+ nodes available — bumping replication_factor to 3"
+CURRENT_RF=$(grep -E 'replication_factor[[:space:]]*=[[:space:]]*[0-9]+' /etc/garage/garage.toml | grep -o '[0-9]\+' || echo 1)
+if [ "$HEALTHY_NODES" -ge 3 ] && [ "${CURRENT_RF}" -lt 3 ]; then
+    log "3+ nodes available and replication_factor < 3 — bumping replication_factor to 3"
     sudo sed -i 's/replication_factor = 1/replication_factor = 3/' /etc/garage/garage.toml
     # Remove old layout so it can be recreated with rf=3
     sudo systemctl stop garage
@@ -102,7 +103,7 @@ if [ "$HEALTHY_NODES" -ge 3 ]; then
     sleep 3
     # Re-assign all roles
     log "Re-assigning all layout roles for rf=3..."
-    $G status 2>&1 | grep "NO ROLE ASSIGNED" | awk '{print $1}' | while read node_id; do
+    $G status 2>&1 | (grep "NO ROLE ASSIGNED" || true) | awk '{print $1}' | while read node_id; do
         $G layout assign "$node_id" --zone local --capacity 200G 2>&1 || true
     done
     # Assign primary separately

4-Infrastructure/storage/garage/garage.qfox-1.toml

@@ -4,8 +4,8 @@
 # Cluster topology (all nodes communicate over Tailscale mesh):
 #   qfox-1           100.88.57.96    this machine — primary S3 endpoint
 #   361395-1         100.110.163.82  Debian 13 / Netcup VPS (old cupfox, reinstalled)
-#   nixos-laptop     100.119.165.120 NixOS / storage node
-#   microvm-racknerd 100.101.247.127 Debian VM / RackNerd VPS
+#   nixos-laptop     100.102.173.61  NixOS / storage node
+#   microvm-racknerd 100.80.39.40    Debian VM / RackNerd VPS
 #   dracocomp        100.100.140.27  offline (last seen 2d ago)
 
 metadata_dir = "/var/lib/garage/meta"

4-Infrastructure/storage/node-registry.json

@@ -0,0 +1,11 @@
+[
+  {
+    "hostname": "100.80.39.40",
+    "tailscale_ip": "100.80.39.40",
+    "ssh_user": "root",
+    "ssh_port": 22,
+    "garage_node_id": "1951197c0ce140a7724155d0d68db490682fa3b63f8cc98acdceb8c7b1d41766@100.80.39.40:3901",
+    "garage_data_dir": "/var/lib/garage/data",
+    "added_at": "2026-05-31T07:03:13.628137+00:00"
+  }
+]