Question

我已经提炼了一个有三个剧本的剧本。目标是在一次播放中从提示中收集数据库密码，然后在其他两次播放中使用相同的密码。

---

- name: database password
  hosts:
    - webservers
    - dbservers
  vars_prompt:
    - name: "db_password"
      prompt: "Enter Database Password for databse user root"
      default: "root"

- hosts: dbservers
  tasks:
    - command: echo {{db_password | mandatory }}


- hosts: webservers
  tasks:
    - command: echo {{db_password | mandatory }}

如下所示失败。

Enter Database Password for databse user root [root]: 

PLAY [database password] ****************************************************** 

GATHERING FACTS *************************************************************** 
ok: [vc-dev-1]

PLAY [dbservers] ************************************************************** 

GATHERING FACTS *************************************************************** 
ok: [vc-dev-1]

TASK: [command echo {{db_password | mandatory}}] *************************** 
fatal: [vc-dev-1] => One or more undefined variables: 'db_password' is undefined

FATAL: all hosts have already failed -- aborting

PLAY RECAP ******************************************************************** 
           to retry, use: --limit @.../playbook2.retry

vc-dev-1                   : ok=3    changed=0    unreachable=1    failed=0

Answer 1

我找到了以下解决方法，使用set_fact将用户输入的变量分配到具有playbook范围的变量中。似乎var_prompt变量不像事实和其他变量，它的范围在播放中受到限制，提示它们不是整个剧本。我不确定这是一个功能还是一个bug。

---

- name: database password
  hosts:
    - webservers
    - dbservers
  vars_prompt:
    - name: "db_password"
      prompt: "Enter Database Password for databse user root"
      default: "root"
  tasks:
    - set_fact:
        db_root_password: "{{db_password}}"

- hosts: dbservers
  tasks:
    - command: echo {{db_root_password | mandatory }}


- hosts: webservers
  tasks:
    - command: echo {{db_root_password | mandatory }}

Answer 2

即兴创作gae123的答案，如果您的主机是动态添加的，则无法在现有服务器组上获取和设置事实，在这种情况下，可以使用localhost进行设置和获取。

---
- name: database password
  hosts: localhost
  vars_prompt:
    - name: "db_password"
      prompt: "Enter Database Password for databse user root"
      default: "root"
  tasks:
    - set_fact:
        db_root_password: "{{db_password}}"

- hosts: dbservers
  vars:
    - db_root_password: "{{ hostvars['localhost']['db_root_password'] }}"
  tasks:
    - command: echo {{db_root_password | mandatory }}


- hosts: webservers
  vars:
    - db_root_password: "{{ hostvars['localhost']['db_root_password'] }}"
  tasks:
    - command: echo {{db_root_password | mandatory }}

Answer 3

我最终为我的localhost sudo密码问题取了user3037143的答案：

---
- hosts: localhost
  tags:
    - always
  vars_prompt:
    - name: sudo_password
      prompt: "Sudo password for localhost ONLY"
  tasks:
    - set_fact: ansible_become_password={{ sudo_password }}
      no_log: true

现在我在每个包含的剧本之间共享。

我在ansible＆gt; 2。

为什么我无法提示将由多个播放器共享的变量（ansible 1.6.5）

3 个答案: