gistfile1.txt

test playbook test_import_include.yml:

- hosts: localhost
  gather_facts: false
  vars:
    interface: test_interface
    test_import_include:
      - name: "{{ interface }}"
        state: up
        type: ethernet
        ip:
          dhcp4: "no"
          auto6: "no"
  tasks:
    - name: before include_role
      debug:
        msg: before include_role
    - include_role:
        name: test_import_include
    - name: before import_role
      debug:
        msg: before import_role
    - import_role:
        name: test_import_include
    - name: end
      debug:
        msg: end

test role in roles/test_import_include/tasks/main.yml

- name: show the var
  debug:
    msg: test_import_include {{ test_import_include | to_nice_json }}

run it like this:

ANSIBLE_STDOUT_CALLBACK=debug ansible-playbook -vv test_import_include.yml

output:

PLAY [localhost] ***************************************************************************
META: ran handlers

TASK [before include_role] *****************************************************************
task path: /home/rmeggins/ansible_sandbox/test_import_include.yml:13
ok: [localhost] => {}

MSG:

before include_role

TASK [include_role : test_import_include] **************************************************
task path: /home/rmeggins/ansible_sandbox/test_import_include.yml:16

TASK [test_import_include : show the var] **************************************************
task path: /home/rmeggins/ansible_sandbox/roles/test_import_include/tasks/main.yml:1
ok: [localhost] => {}

MSG:

test_import_include [
    {
        "ip": {
            "auto6": "no",
            "dhcp4": "no"
        },
        "name": "test_interface",
        "state": "up",
        "type": "ethernet"
    }
]

TASK [before import_role] ******************************************************************
task path: /home/rmeggins/ansible_sandbox/test_import_include.yml:18
ok: [localhost] => {}

MSG:

before import_role

TASK [test_import_include : show the var] **************************************************
task path: /home/rmeggins/ansible_sandbox/roles/test_import_include/tasks/main.yml:1
ok: [localhost] => {}

MSG:

test_import_include [
    {
        "ip": {
            "auto6": "no",
            "dhcp4": "no"
        },
        "name": "test_interface",
        "state": "up",
        "type": "ethernet"
    }
]

TASK [end] *********************************************************************************
task path: /home/rmeggins/ansible_sandbox/test_import_include.yml:23
ok: [localhost] => {}

MSG:

end