--- a/contrib/provision/playbook.yml	Sat Sep 16 23:17:19 2017 +0800
+++ b/contrib/provision/playbook.yml	Sat Sep 16 22:40:16 2017 +0800
@@ -1,6 +1,6 @@
 ---
 - hosts: all
-  sudo: yes
+  become: yes
   vars:
     domain: tram-im
   pre_tasks:

--- a/contrib/provision/roles/prosody/tasks/main.yml	Sat Sep 16 23:17:19 2017 +0800
+++ b/contrib/provision/roles/prosody/tasks/main.yml	Sat Sep 16 22:40:16 2017 +0800
@@ -11,8 +11,8 @@
   tags: [packages]
 
 - include: extra-modules.yml
-  sudo: yes
-  sudo_user: prosody
+  become: yes
+  become_user: prosody
 
 - name: Work around default config bug
   file:

--- a/contrib/provision/roles/tram-im/tasks/main.yml	Sat Sep 16 23:17:19 2017 +0800
+++ b/contrib/provision/roles/tram-im/tasks/main.yml	Sat Sep 16 22:40:16 2017 +0800
@@ -32,8 +32,8 @@
     name: '{{ user }}'
 
 - include: appinstall.yml
-  sudo: yes
-  sudo_user: '{{ user }}'
+  become: yes
+  become_user: '{{ user }}'
 
 - name: Add Prosody VirtualHost
   template: