Question

试图以某种方式解决这个问题：

deploy.yml：

- vars:
    site_name: "{{ lookup('env', 'MY_SITE') }}"
  hosts: "{{ site_name }}"
  roles:
    - { role: deploy, tags: ["release"] }

拥有group_vars文件：

mysite1:
  - name: 'mysite1'
    docroot: '/var/www/mysite1.com'
    codebase: ''
    db_host: '192.168.1.100'
    db_user: 'myuser'
    db_pass: 'mypass'
    db_name: 'mydb'

和剧本任务文件：

---

- debug: "msg='Host site name {{ item.name }} db_host {{ item.db_host }}'"
  with_items: site_name

用以下方式运行剧本：

export MY_SITE=mysite1 ; ansible-playbook -i myinventory deploy.yml -e @group_vars/sites.yml

然而这是不对的，得到：

fatal: [myhost]: FAILED! => {"failed": true, "msg": "'unicode object' has no attribute 'name'"}

当然变量＆＃34; site_name＆＃34;包含值＆＃34; mysite1＆＃34;我想从集团变量中获得mysite1的价值...... 任何人都能指出我正确的方向吗？（就我在文档中读到变量中的变量或者评估变量还不可能......）谢谢！

Answer 1

您可能需要尝试host_vars吗？举个例子：

＃tree

├── deploy-playbook.yml
├── hosts
├── host_vars
│   ├── mysite1.yml
│   └── mysite2.yml
└── roles
    └── deploy
        └── tasks
            └── main.yml

#cat hosts

[sites]
mysite1
mysite2

#cat deploy-playbook.yml

---
- vars:
    site_name: "{{ lookup('env', 'MY_SITE') }}"
  hosts: "{{ site_name }}"
  roles:
    - { role: deploy }

#cat host_vars / mysite1.yml

---
name: 'mysite1'
db_name: 'mydb1'
test:
  name: 'test_mysite1'
  db_name: 'test_mydb1'

#cat host_vars / mysite2.yml

---
name: 'mysite2'
db_name: 'mydb2'
test:
  name: 'test_mysite2'
  db_name: 'test_mydb2'

#cat roles / deploy / tasks / main.yml

---
- debug: msg='{{ name }} - {{ test['name'] }} - {{ db_name }} -  {{ test['db_name'] }}'

结果：

#export MY_SITE = mysite1; ansible-playbook -i hosts deploy-playbook.yml

PLAY [mysite1] *****************************************************************

TASK [setup] *******************************************************************
ok: [mysite1]

TASK [deploy : debug] **********************************************************
ok: [mysite1] => {
"msg": "mysite1 - test_mysite1 - mydb1 -  test_mydb1"
}

PLAY RECAP *********************************************************************
mysite1                    : ok=2    changed=0    unreachable=0    failed=0

#export MY_SITE = mysite2; ansible-playbook -i hosts deploy-playbook.yml

PLAY [mysite2] *****************************************************************

TASK [setup] *******************************************************************
ok: [mysite2]

TASK [deploy : debug] **********************************************************
ok: [mysite2] => {
"msg": "mysite2 - test_mysite2 - mydb2 -  test_mydb2"
}

PLAY RECAP *********************************************************************
mysite2                    : ok=2    changed=0    unreachable=0    failed=0

Ansible在变量中获取变量的值

1 个答案: