Provision dockerbox in Vagrant and setup network

roles/base/files/network-interfaces.cfg

@@ -0,0 +1,10 @@
+# Ansible managed
+
+# This file describes the network interfaces available on your system
+# and how to activate them. For more information, see interfaces(5).
+
+source /etc/network/interfaces.d/*
+
+# The loopback network interface
+auto lo
+iface lo inet loopback

roles/base/tasks/main.yml

@@ -3,14 +3,24 @@
     name: ["vim", "wget"]
     state: present
 
+- name: Install network interfaces file
+  copy:
+    src: network-interfaces.cfg
+    dest: /etc/network/interfaces
+    owner: root
+    group: root
+    mode: '0644'
+  when: manage_network
+
 - name: Install network interfaces
   template:
     src: "{{ network_type }}-interface.cfg"
-    dest: /etc/network/interfaces
+    dest: "/etc/network/interfaces.d/{{ ip_inter }}"
   notify: reboot_host
+  when: manage_network
 
 - name: Install bridge utilities
   apt:
     name: bridge-utils
     state: present
-  when: network_type == "bridged"
+  when: network_type == "bridged" and manage_network

roles/base/templates/bridged-interface.cfg

@@ -1,9 +1,5 @@
 # {{ ansible_managed }}
 
-# The loopback network interface
-auto lo
-iface lo inet loopback
-
 # The primary network interface
 auto br1
 iface br1 inet static

roles/base/templates/static-interface.cfg

@@ -1,9 +1,5 @@
 # {{ ansible_managed }}
 
-# The loopback network interface
-auto lo
-iface lo inet loopback
-
 # The primary network interface
 auto {{ ip_inter }}
 iface {{ ip_inter }} inet static