Add fleet hostnaming

serving/docker-compose.yml

@@ -43,6 +43,11 @@ services:
       - NET_ADMIN          # DHCP raw sockets
       - NET_RAW
     restart: unless-stopped
+    volumes:
+      # DHCP reservations (MAC -> name [-> IP]); drives DHCP option 12 (hostname)
+      # + DNS A/PTR. Auto-populated by fleet-namer (creative names per MAC); add
+      # manual lines to pin specific hosts. RW so fleet-namer can append.
+      - ./dnsmasq/dhcp-hosts:/etc/dnsmasq-hosts
     command:
       - --keep-in-foreground
       # Log to stderr so `docker compose logs` captures output. Without this,
@@ -84,6 +89,18 @@ services:
       # below so they sync time internally and never reach the public NTP pool.
       # The image's NM dispatcher (10-chrony-dhcp-ntp) feeds this into chrony.
       - --dhcp-option=option:ntp-server,${SERVER_IP}
+      # ---- Per-host names (creative starship hostnames, server-assigned) ----
+      # The workstation image is hostname-neutral; naming is done HERE. fleet-namer
+      # (the --dhcp-script) derives a stable themed name per MAC (e.g.
+      # nebula-vanguard-07), appends it to the hostsfile, and SIGHUPs dnsmasq;
+      # dnsmasq then sends it as DHCP option 12 (-> NetworkManager sets the
+      # hostname) and registers DNS A/PTR under ${BOOT_DOMAIN}. The host picks up
+      # its name on the NEXT DHCP transaction (renewal at ~half lease, or reboot)
+      # — shorten DHCP_LEASE if you want naming to settle faster on first contact.
+      # --user=root so the dhcp-script can write the hostsfile + signal dnsmasq.
+      - --user=root
+      - --dhcp-hostsfile=/etc/dnsmasq-hosts
+      - --dhcp-script=/usr/local/bin/fleet-namer
       # ---- UEFI HTTP Boot ----
       # Firmware sends vendor-class "HTTPClient"; we must echo it back (opt 60)
       # and hand over the UKI URL (opt 67). IP in the URL avoids a DNS round-trip