bridge name is configurable

add-vm

@@ -34,6 +34,7 @@ masterKVMIP="${masterKVMIP:-127.0.0.1}"
 slaveKVMIP="${slaveKVMIP:-}"
 disks="${disks:-}"
 [ -n "${disks}" ] || disks=("ssd" "hdd")
+bridgeName="${bridgeName:-br0}"
 doDryRun=${doDryRun:-false}
 
 export DIALOGOUT=$(mktemp --tmpdir=/tmp addvm.XXX)
@@ -204,7 +205,7 @@ dryRun virt-install --connect=qemu:///system \
   --memory=${memory} \
   --disk path=/dev/drbd/by-disk/${volrootDisk}/${vmName}_root,bus=virtio,io=threads,cache=none,format=raw \
   $virtHome \
-  --network=bridge:br0,model=virtio \
+  --network=bridge:${bridgeName},model=virtio \
   --noautoconsole --graphics vnc,listen=127.0.0.1,keymap=fr \
   --rng /dev/random \
   --os-variant=none \