Ansible中的数组

Question

我有一个像下面的json

{
"nodes":[
  {
     "node_values":[
        "[test1]",
        "10.33.11.189",
        "10.33.11.185"
     ]
  },
  {
     "node_values":[
        "[test2]",
        "10.33.11.189",
        "10.33.11.185"
     ]
  }
]
}

我试图只读取节点值并将其放在文本文件中。我使用下面的ansible代码

  hosts: localhost
  vars:
    tmpdata1: "{{ lookup('file','test.json')|from_json }}"

  tasks:
    - name: Add mappings to /etc/hosts
      blockinfile:
        path: /home/s57232/Ansible-Install/Install_Inventory.txt
        content:  item
        marker: "# {mark} ANSIBLE MANAGED BLOCK {{ item.node_values[0] }}"
      loop: "{{ tmpdata1 |json_query('nodes[*].node_values[*]') }}"

我正在低于错误

**TASK [Add mappings to /etc/hosts] **********************************************************************************************************************************
fatal: [localhost]: FAILED! => {"msg": "The task includes an option with an undefined variable. The error was: 'list object' has no attribute 'node_values'\n\nThe error appears to have been in '/home/s57232/Ansible-Install/prepare_inventory.yml': line 14, column 7, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n    - name: Add mappings to /etc/hosts\n      ^ here\n"}**

当我尝试使用带有blockinfile的项目和文件格式进行读取时，如果多个位置存在相同的IP，则不会写入，因为它正在查找唯一值。我无法继续下去。谁能帮帮我吗？

当我在使用

- name: Add mappings to /etc/hosts
  blockinfile:
    path: /home/s57232/Ansible-Install/Install_Inventory.txt
    content:  "{{ item.node_values }}"
    marker: "# {mark} ANSIBLE MANAGED BLOCK {{ item.node_values[0] }}"
  loop: "{{ tmpdata1 |json_query('nodes[*]') }}"

我正进入（状态

# BEGIN ANSIBLE MANAGED BLOCK [test1]
['[test1]', '10.33.11.189', '10.33.11.185']
# END ANSIBLE MANAGED BLOCK [test1]
# BEGIN ANSIBLE MANAGED BLOCK [test2]
['[test2]', '10.33.11.189', '10.33.11.185']
# END ANSIBLE MANAGED BLOCK [test2]

我的期望是

# BEGIN ANSIBLE MANAGED BLOCK [test1]
[test1]
10.33.11.189
10.33.11.185
# END ANSIBLE MANAGED BLOCK [test1]
# BEGIN ANSIBLE MANAGED BLOCK [test2]
[test2]
10.33.11.189
10.33.11.185
# END ANSIBLE MANAGED BLOCK [test2]

Answer 1

这个给你：

- name: Add mappings to /etc/hosts
  blockinfile:
    path: /home/s57232/Ansible-Install/Install_Inventory.txt
    content:  "{{ item.node_values | join('\n') }}"
    marker: "# {mark} ANSIBLE MANAGED BLOCK {{ item.node_values.0 }}"
  loop: "{{ tmpdata1.nodes }}"

除非您想过滤某些值，否则不需要使用JMESPath。除此之外，您有两个列表：一个用于循环，另一个用换行符加入元素。