Read become password from pass

Signed-off-by: Yohann D'ANELLO <ynerant@crans.org>

ansible.cfg

@@ -1,13 +1,15 @@
 [defaults]
 # Explicitely redefined some defaults to make play execution work
 roles_path = ./roles
+vars_plugins = ./vars_plugins
 
 inventory = ./hosts
 timeout = 60
 
 [privilege_escalation]
 become = True
-become_ask_pass = True
+# Use a separate module to read passwords from pass
+become_ask_pass = False
 
 [ssh_connection]
 pipelining = True