ansible - convoluted json_query foo - reducing a nested dict to just bits we can use

00_play.yml

---
- hosts: localhost
  connection: local
  gather_facts: False
  tasks:
    # - include_vars: jsonfile.json
    #
    # - debug:
    #     var: ansible_devices
    #
    # - debug:
    #     var: item.value.partitions
    #   when: "item.value.partitions | length > 0"
    #   with_dict: "{{ ansible_devices }}"
    #
    # - name: Check for partitions on disk devices
    #   parted: 
    #     device: "/dev/{{ item.key }}"
    #     unit: MiB
    #   when: item.partitions | length > 0
    #   with_dict: "{{ ansible_devices }}"
    #   register: driveFStype
    
    - include_vars: 01_parted.json

    - debug:
        msg: "{{ results | json_query(query) }}"
      vars:
        query: "[].{disk: disk.dev, partitions: partitions[?fstype=='ntfs']}"
        #query: "[].disk.dev"
    

01_parted.json

"results": [
    {
        "_ansible_item_result": true,
        "_ansible_no_log": false,
        "_ansible_parsed": true,
        "changed": false,
        "disk": {
            "dev": "/dev/sda2",
            "logical_block": 512,
            "model": "Unknown",
            "physical_block": 512,
            "size": 32466.0,
            "table": "loop",
            "unit": "mib"
        },
        "invocation": {
            "module_args": {
                "align": "optimal",
                "device": "/dev/sda2",
                "flags": null,
                "label": null,
                "name": null,
                "number": null,
                "part_end": "100%",
                "part_start": "0%",
                "part_type": "primary",
                "state": "info",
                "unit": "MiB"
            }
        },
        "item": "sda2",
        "partitions": [
            {
                "begin": 0.0,
                "end": 32466.0,
                "flags": [],
                "fstype": "ntfs",
                "num": 1,
                "size": 32466.0,
                "unit": "mib"
            }
        ],
        "script": "unit 'MiB' print"
    },
    {
        "_ansible_item_result": true,
        "_ansible_no_log": false,
        "_ansible_parsed": true,
        "changed": false,
        "disk": {
            "dev": "/dev/sda1",
            "logical_block": 512,
            "model": "Unknown",
            "physical_block": 512,
            "size": 300.0,
            "table": "loop",
            "unit": "mib"
        },
        "invocation": {
            "module_args": {
                "align": "optimal",
                "device": "/dev/sda1",
                "flags": null,
                "label": null,
                "name": null,
                "number": null,
                "part_end": "100%",
                "part_start": "0%",
                "part_type": "primary",
                "state": "info",
                "unit": "MiB"
            }
        },
        "item": "sda1",
        "partitions": [
            {
                "begin": 0.0,
                "end": 300.0,
                "flags": [],
                "fstype": "ntfs",
                "num": 1,
                "size": 300.0,
                "unit": "mib"
            }
        ],
        "script": "unit 'MiB' print"
    }
]

02_output

PLAY [localhost] **********************************************************************************************************************

TASK [include_vars] *******************************************************************************************************************
ok: [localhost]

TASK [debug] **************************************************************************************************************************
ok: [localhost] => {
    "msg": [
        {
            "disk": "/dev/sda2",
            "partitions": [
                {
                    "begin": 0.0,
                    "end": 32466.0,
                    "flags": [],
                    "fstype": "ntfs",
                    "num": 1,
                    "size": 32466.0,
                    "unit": "mib"
                }
            ]
        },
        {
            "disk": "/dev/sda1",
            "partitions": [
                {
                    "begin": 0.0,
                    "end": 300.0,
                    "flags": [],
                    "fstype": "ntfs",
                    "num": 1,
                    "size": 300.0,
                    "unit": "mib"
                }
            ]
        }
    ]
}

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

03_play.yml

---
- hosts: localhost
  connection: local
  gather_facts: False
  tasks:
    - setup:
        filter: ansible_devices
        
    # - include_vars: jsonfile.json

    # - name: Check for partitions on disk devices
    #   parted: 
    #     device: "/dev/{{ item.key }}"
    #     unit: MiB
    #   when: item.partitions | length > 0
    #   with_dict: "{{ ansible_devices }}"
    #   register: driveFStype
    
    - include_vars: 
        path: 01_parted.json
        name: driveFStype

    - name: mount ntfs partitions
      mount: 
        path: "/mnt/{{ item.item }}"
        src: "{{ item.disk.dev }}"
        fstype: ntfs
      when: "item.partitions | length > 0 and item.partitions | selectattr('fstype', 'equalto', 'ntfs') | list | length > 0"
      with_items: "{{ driveFStype.results }}"