Adding tools for next version of warden.

Change-Id: I35b0ac57b54b0bf7b8c6b6a40e02f050b3fcc7f1
diff --git a/utils/warden/bin/destroy-node b/utils/warden/bin/destroy-node
new file mode 100755
index 0000000..b315d41
--- /dev/null
+++ b/utils/warden/bin/destroy-node
@@ -0,0 +1,9 @@
+#!/bin/bash
+# Destroys an LXC node with the specified name.
+
+name=$1
+[ "$name" = "onos-base" ] && echo "Don't do that!" && exit 1
+[ "$name" = "mininet-base" ] && echo "Don't do that!" && exit 1
+
+sudo lxc-stop -n $name
+sudo lxc-destroy -n $name