Rewrite virt-sysprep.

1 files changed, 46 insertions, 0 deletions

diff --git a/sysprep/sysprep_operation_udev_persistent_net.ml b/sysprep/sysprep_operation_udev_persistent_net.ml
new file mode 100644
index 00000000..e54e1404
--- /dev/null
+++ b/sysprep/sysprep_operation_udev_persistent_net.ml
@@ -0,0 +1,46 @@
+(* virt-sysprep
+ * Copyright (C) 2012 Red Hat Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *)
+
+open Sysprep_operation
+
+module G = Guestfs
+
+let udev_persistent_net_perform g root =
+  let typ = g#inspect_get_type root in
+  if typ = "linux" then (
+    (try g#rm "/etc/udev/rules.d/70-persistent-net.rules"
+     with G.Error _ -> ());
+    []
+  )
+  else []
+
+let udev_persistent_net_op = {
+  name = "udev-persistent-net";
+  pod_description = "\
+Remove udev persistent net rules which map the guest's existing MAC
+address to a fixed ethernet device (eg. eth0).
+
+After a guest is cloned, the MAC address usually changes.  Since the
+old MAC address occupies the old name (eg. eth0), this means the fresh
+MAC address is assigned to a new name (eg. eth1) and this is usually
+undesirable.  Erasing the udev persistent net rules avoids this.";
+  extra_args = [];
+  perform = udev_persistent_net_perform;
+}
+
+let () = register_operation udev_persistent_net_op