为什么Ansible忽略ansible_bece_password变量？

Question

---
  - hosts: all
    gather_facts: yes
    roles:
      - role1

下面是roles/role1/tasks/main.yml：

---
  - name: Update apt-get cache (apt-get update)
    become: true
    apt: update_cache=yes

我的库存：

localhost

最后是host_vars/localhost.yml：

---
ansible_connection: local
ansible_become_pass: user

使用ansible-playbook-i inventory play.yml-vvv运行playbook时出现以下错误

<localhost> REMOTE_MODULE apt update_cache=yes
<localhost> EXEC ['/bin/sh', '-c', 'mkdir -p /tmp/ansible-tmp-1448910759.16-277915614747763 && chmod a+rx /tmp/ansible-tmp-1448910759.16-277915614747763 && echo /tmp/ansible-tmp-1448910759.16-277915614747763']
<localhost> PUT /tmp/tmpKuhTO2 TO /tmp/ansible-tmp-1448910759.16-277915614747763/apt
<localhost> EXEC ['/bin/sh', '-c', u'chmod a+r /tmp/ansible-tmp-1448910759.16-277915614747763/apt']
<localhost> EXEC /bin/sh -c 'sudo -k && sudo -H -S -p "[sudo via ansible, key=ilkbtrjkxxznhmgwvdaglfojzolhhfhz] password: " -u root /bin/sh -c '"'"'echo BECOME-SUCCESS-ilkbtrjkxxznhmgwvdaglfojzolhhfhz; LANG=C LC_CTYPE=C /usr/bin/python /tmp/ansible-tmp-1448910759.16-277915614747763/apt'"'"''
<localhost> EXEC /bin/sh -c 'sudo -k && sudo -H -S -p "[sudo via ansible, key=stcxercjkjtxgyzjewlffytjjwcwidip] password: " -u root /bin/sh -c '"'"'echo BECOME-SUCCESS-stcxercjkjtxgyzjewlffytjjwcwidip; LANG=C LC_CTYPE=C /usr/bin/python /home/user/.ansible/tmp/ansible-tmp-1449081640.46-119933765060267/apt; rm -rf /home/user/.ansible/tmp/ansible-tmp-1449081640.46-119933765060267/ >/dev/null 2>&1'"'"''
failed: [localhost] => {"failed": true, "parsed": false}
[sudo via ansible, key=stcxercjkjtxgyzjewlffytjjwcwidip] password:

Answer 1

ansible_bece_user用于切换到类似于su的用户。

如果该用户没有正确的权限来执行任务而不进一步提升权限，那么该任务将失败。

如果删除ANSIBLE_BEOME_USER行，它将默认为root，然后可以执行任何操作。