Merge branch 'network-interfaces' into 'newinfra'

Enable configuring network interfaces

See merge request !187

host_vars/redisdead.adm.crans.org.yml

 ---
+interfaces:
+  adm: eth0
+  srv: eth1
+
 postfix:
   primary: true
   secondary: false

plays/network-interfaces.yml

 #!/usr/bin/env ansible-playbook
 ---
-- hosts: voyager.adm.crans.org,boeing.adm.crans.org,fluxx.adm.crans.org,hodaur.adm.crans.org,unifi.adm.crans.org,kiwi.adm.crans.org,roundcube.adm.crans.org,monitoring.adm.crans.org,bigbluebutton.adm.crans.org,codichotomie.adm.crans.org,kiwijuice.adm.crans.org,owl.adm.crans.org,zephir.adm.crans.org,re2o.adm.crans.org
+- hosts: crans_server
   vars:
     vlan:
       - name: srv

roles/interfaces/tasks/main.yml

@@ -14,6 +14,11 @@
     dest: /etc/network/interfaces
     mode: 0644
 
+- name: Remove cloud-init interface configuration
+  file:
+    path: /etc/network/interfaces.d/50-cloud-init
+    state: absent
+
 - name: Deploy interfaces config
   template:
     src: "network/interfaces.d/ifalias.j2"