Question

我有这个ansible playbook

- name: set var small
  set_fact:
    iops_price = 41538
    ram_price_id = 32438
    second_san_price_id = 32926
    os_price_id = 49061
  when: plan|lower == 'small'

- name: aa
  command: echo "{{iops_price}}"

它失败了，因为它说没有定义iops_price，这是输出：

TASK [set var small] ***********************************************************
task path: /home/hanna/proj/db2onc-deploy/db.yml:98
ok: [localhost] => {"ansible_facts": {"_raw_params": "iops_price = 41538  ram_price_id = 32438 second_san_price_id = 32926 os_price_id = 49061"}, "changed": false}

TASK [aa] **********************************************************************
task path: /home/hanna/proj/db2onc-deploy/db.yml:107
fatal: [localhost]: FAILED! => {"failed": true, "msg": "the field 'args' has an invalid value, which appears to include a variable that is undefined. The error was: 'iops_price' is undefined\n\nThe error appears to have been in '/home/hanna/proj/db2onc-deploy/db.yml': line 107, column 9, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n      - name: aa\n        ^ here\n"}

事实证明，我设置的事实可通过_raw_params访问，相当于

_raw_params = "iops_price = 41538 ram_price_id = 32438 second_san
_price_id = 32926 os_price_id = 49061"

这不是我想要的，我实际上想设置那些个别变量，任何人都知道为什么会这样？

Answer 1

我经常发现在YAML中，如果字段周围有空格，则不会将'='解析为字段。尝试：

  set_fact:
    iops_price=41538
    ram_price_id=32438
    second_san_price_id=32926
    os_price_id=49061
  when: plan|lower == 'small'

Answer 2

你可以在set_fact中使用冒号（:）而不是相等的（=）符号。

这应该有效：

- name: set var small
  set_fact:
    iops_price: 41538
    ram_price_id: 32438
    second_san_price_id: 32926
    os_price_id: 49061
  when: plan|lower == 'small'

- name: aa
  command: echo "{{iops_price}}"

ansible set_fact无法访问

2 个答案: