Ansible任务不能在某个Vagrant盒子上有sudo_user(便当)

在Vagrant框(ubuntu 12.04 chefless) http://opscode.github.io/bento/上,以下任务失败

- name: ensure database is created
    POSTGResql_db: name={{dbnamE}}
    sudo_user: POSTGRes

FD

failed: [192.168.78.8] => {"failed": true,"parsed": falsE}
invalid output was: Sorry,user vagrant is not allowed to execute '/bin/sh -c echo SUDO-succesS-lalargtagydzinzenmftocwaiucrmxuk; /usr/bin/python /tmp/ansible-1392568385.89-150322815243790/POSTGResql_db' as POSTGRes on cogol-dev.

我需要创建自己的盒子吗？

=== / etc / sudoers的内容

Defaults    env_reset
Defaults    exempt_group=sudo
Defaults    mail_badpass
Defaults    secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"

# Host alias specification

# User alias specification

# Cmnd alias specification

# User privilege specification
root    ALL=(ALL:ALL) ALL

# Members of the admin group may gain root privileges
%admin ALL=(ALL) ALL

# Allow members of group sudo to execute any command
%sudo   ALL=NOPASSWD:ALL

# See sudoers(5) for more information on "#include" directives:

#includedir /etc/sudoers.d

username ALL=(ALL) NOPASSWD: ALL