update..

roles/network_interfaces/tasks/interfaces.yml

@@ -15,7 +15,7 @@
 
 - name: (interfaces.yml) Ensure interfaces file is latest
   template:
-    src: "etc/network//interfaces.j2"
+    src: "etc/network/interfaces.j2"
     dest: /etc/network/interfaces
   with_items: network_interfaces
   tags:

roles/network_interfaces/templates/etc/network/interfaces.d/device.j2

@@ -31,14 +31,7 @@ iface {{ config.device }} {{ config.family | default('inet', true) }} {{ config.
    address {{ config.address }}
 {%       endif -%}
 {%     endif -%}
-{%     set iface_keys = ['gateway', 'metric', 'pointopoint', 'mtu', 'scope'] %}
-{%     for key in iface_keys %}
-{%       if key in config and config[key] %}
-   {{ key }} {{ config[key] }}
-{%       endif %}
-{%     endfor -%}
-{%   elif config.method == "manual" %}
-{%     set iface_keys = ['hwaddress', 'mtu'] %}
+{%     set iface_keys = ['gateway', 'metric', 'pointopoint', 'media', 'mtu', 'scope'] %}
 {%     for key in iface_keys %}
 {%       if key in config and config[key] %}
    {{ key }} {{ config[key] }}
@@ -51,6 +44,14 @@ iface {{ config.device }} {{ config.family | default('inet', true) }} {{ config.
    {{ key }} {{ config[key] }}
 {%       endif %}
 {%     endfor -%}
+{%   elif config.method == "ppp" %}
+{%      if (config.provider is defined and config.provider)  %}
+   provider {{ config.provider }}
+{%     endif %}
+{%   elif config.method == "wvdial" %}
+{%      if (config.provider is defined and config.provider)  %}
+   provider {{ config.provider }}
+{%     endif %}
 {%   elif config.method == "bootp" %}
 {%     set iface_keys = ['hwaddr', 'bootfile', 'server'] %}
 {%     for key in iface_keys %}