如何按列表成员的name属性对Ansible主机列表进行版本排序

我尝试用以下Ansible代码按name字段对主机列表排序：

---
  - hosts: localhost
    vars:
      hosts:
        - name: host2
          uptime: 1d
        - name: host10
          uptime: 45d
        - name: host1
          uptime: 3m

    tasks:
    - name: version sort host list
      debug:
        #var: hosts | community.general.version_sort
        #var: hosts | dictsort(false, 'value')
        var: hosts | sort(attribute='name')

可以看到排序结果不符合预期（host2应该排在host10之前）：

TASK [version sort host list] *************************************
ok: [localhost] => {
    "hosts | sort(attribute='name')": [
        {
            "name": "host1",
            "uptime": "3m"
        },
        {
            "name": "host10",  <-------
            "uptime": "45d"
        },
        {
            "name": "host2",
            "uptime": "1d"
        }
    ]
}

我查过version_sort过滤器，但它不支持按属性排序，而且当前无法修改主机名格式，求其他解决思路。

解决方案：结合version_sort与extract实现自然排序 #

感谢@Vladimir Botka提供的方案，我整合了其中一种思路，编写了如下剧本（新增FQDN主机名让场景更复杂，方案依然有效）：

- hosts: localhost

  vars:
    hosts:
      - {name: host2.example.com, uptime: 1d}
      - {name: host10.example.com, uptime: 45d}
      - {name: host1.example.com, uptime: 3m}
      - {name: host3.example.com, uptime: 3m}
      - {name: host15.example.com, uptime: 45d}
      - {name: host20.example.com, uptime: 45d}
  tasks:
#    - debug:
#        msg: 
#        - "index: {{ hosts | map(attribute='name') | community.general.version_sort }}"
#        - "host_indexed: {{ dict(hosts|json_query('[].[name,@]')) }}"
#        - "solution: {{ (hosts | map(attribute='name') | community.general.version_sort) | map('extract', dict(hosts|json_query('[].[name,@]'))) }}"
    - debug: 
        var: (hosts | map(attribute='name') | community.general.version_sort) | map('extract', dict(hosts|json_query('[].[name,@]'))) 

执行结果如下：

PLAY [localhost] *****************************************************************************************************************************************
    
TASK [Gathering Facts] ***********************************************************************************************************************************
ok: [localhost]
    
TASK [debug] *********************************************************************************************************************************************
[WARNING]: Collection community.general does not support Ansible version 2.14.17
ok: [localhost] => {
    "(hosts | map(attribute='name') | community.general.version_sort) | map('extract', dict(hosts|json_query('[].[name,@]')))": [
        {
            "name": "host1.example.com",
            "uptime": "3m"
        },
        {
            "name": "host2.example.com",
            "uptime": "1d"
        },
        {
            "name": "host3.example.com",
            "uptime": "3m"
        },
        {
            "name": "host10.example.com",
            "uptime": "45d"
        },
        {
            "name": "host15.example.com",
            "uptime": "45d"
        },
        {
            "name": "host20.example.com",
            "uptime": "45d"
        }
    ]
}
    
PLAY RECAP ***********************************************************************************************************************************************
localhost                  : ok=2    changed=0    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0

内容的提问来源于stack exchange，提问作者zagpoint