Implement netboot VM with macvtap interface.

roles/lmn_vm/files/create-vm.sh

@@ -41,8 +41,8 @@ fi
 
 # hardware addresses need to be removed, libvirt will assign
 # new addresses automatically
-sed -i /uuid/d "${VM_NAME}-${VM_CLONE}.xml"
-sed -i '/mac address/d' "${VM_NAME}-${VM_CLONE}.xml"
-
 # and actually rename the vm: (this also updates the storage path)
-sed -i "s/${VM_NAME}/${VM_NAME}-${VM_CLONE}/" "${VM_NAME}-${VM_CLONE}.xml"
+sed -i -E \
+    -e '/<uuid>.+<\/uuid>/d' \
+    -e '/.+mac address.+[[:xdigit:]:]{17}.+/d' \
+    -e "s/${VM_NAME}/${VM_NAME}-${VM_CLONE}/" "${VM_NAME}-${VM_CLONE}.xml"

roles/lmn_vm/files/run-vm.sh

@@ -97,6 +97,11 @@ create-clone() {
     sed -i "s/${VM_NAME}/${VM_NAME}-clone/" "${VM_XML}"
     # set virtiofs-Socket
     sed -i "s:VIRTIOFSSOCKET:/run/user/${UID}/virtiofs-${VM_NAME}.sock:" "${VM_XML}"
+
+    # find macvtap interface MAC address:
+    MAC="$(ip link | grep -A1 "vm-macvtap" |
+              sed -nE "s%\s+link/ether ([[:xdigit:]:]{17}) .+%\1%p")"
+    sed -i -E -e "s/MACMACVTAP/$MAC/" "${VM_XML}"
 }
 
 QEMU='qemu:///session'