VirtualMachines: Support auto creation of the config files

Mount using virtiofs

Change-Id: I77c5282b7bb1ad55df6ddfe0e4e53757b94f11e8
diff --git a/charts/virtual-machine/templates/secret-network-data.yaml b/charts/virtual-machine/templates/secret-network-data.yaml
index 02c002c..8d7a94c 100644
--- a/charts/virtual-machine/templates/secret-network-data.yaml
+++ b/charts/virtual-machine/templates/secret-network-data.yaml
@@ -4,4 +4,4 @@
   name: {{ .Values.name }}-network-data
 type: Opaque
 data:
-  networkdata: {{ .Values.cloudInit.networkData}}
+  networkdata: {{ .Values.cloudInit.networkData | toYaml | b64enc}}