Adding self installation command for fabrica

.packer/provisioning/90_terra_network.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<creole>
+
+    <files>
+    </files>
+
+    <variables>
+        <family name='Interface-0'>
+            <variable name='eth0_method' redefine='True' hidden='False' />
+        </family>
+        <separators/>
+    </variables>
+    <constraints>
+        <check name="valid_enum" target="eth0_method">
+            <param>['statique','dhcp']</param>
+        </check>
+    </constraints>
+    <help/>
+</creole>
+<!-- vim: ts=4 sw=4 expandtab
+-->