How to loop over hashes having an undefined number of sub-elements?

[jean-christophe manciot]

Hi everyone,

This is a tricky question which I have been unable to solve so far despîte multiple attempts, maybe it is not feasible with Ansible.

I pull some facts from a networking device, some of them end up in {{ facts.ansible_facts.ansible_net_neighbors }}:

"ansible_net_neighbors": {

        "Gi0/0": [

            {

                "host": "IOSv_L2_10.actionmystique.net",

                "port": "Gi0/1"

            }

        ],

        "Gi0/3": [

            {

                "host": "IOSv_Leaf_13.actionmystique.net",

                "port": "Gi0/1.10"

            },

            {

                "host": "IOSv_Leaf_13.actionmystique.net",

                "port": "Gi0/1.20"

            },

            {

                "host": "IOSv_Leaf_13.actionmystique.net",

                "port": "Gi0/1"

            }

        ],

        "Gi0/4": [

            {

                "host": "IOSv_Leaf_14.actionmystique.net",

                "port": "Gi0/1"

            },

            {

                "host": "IOSv_Leaf_14.actionmystique.net",

                "port": "Gi0/1.20"

            },

            {

                "host": "IOSv_Leaf_14.actionmystique.net",

                "port": "Gi0/1.10"

            }

        ],

...

The number & names of ansible_net_neighbors sub-elements "Gin/p" (which stand for GigabitEthernet n/p) are dynamic: we have no clue in advance what they'll be.

Same characteristic for the number of host/port duo(s) inside each "Gin/p"

So, how can I loop over all those sub-elements? The tricky part for me is the fact that there is no name for the field "Gin/p".

I have unsuccessfully tried the following for instance:

- name: Updating the description of all interfaces

  ios_config:

        provider: "{{ connections.ssh }}"

        parents: 

          - "interface {{ item }}"

        lines:

          - "description Connected to {{ item.host }} on its port {{ item.port }}"

  with_dict: "{{ facts.ansible_facts.ansible_net_neighbors }}"

  register: result

Any ingenious trick in mind?