Add a simple script to manage all the machines

manage_all.sh

@@ -0,0 +1,21 @@
+#!/bin/sh
+
+set -exu
+
+for vm in output/*/; do
+	case "$1" in
+		'start')
+			( cd "$vm" && ./qemu.sh ) &
+			;;
+		'stop')
+			echo system_powerdown | ncat -U "$vm/monitor.sock"
+			;;
+		'attach')
+			remote-viewer "spice+unix://./$vm/spice.sock"
+			;;
+		*)
+			echo >&2 "Usage: $0 (start | stop | attach)"
+			exit 1
+			;;
+	esac
+done

templates/interfaces

@@ -4,6 +4,7 @@ iface lo inet loopback
 {% for br in c.bridges %}
 auto net_{{ br.num }}
 iface net_{{br.num}} inet static
+	pre-up nameif -s
 	address 172.23.{{ br.num }}.{{ c.num }}/24
 
 {% endfor %}