How to do it...

1. Create a new playbook, pb_jnpr_facts.yml, with the following task to collect the facts:

$ cat pb_jnpr_facts.yml

---
- name: Collect and Validate Juniper Facts
  hosts: junos
  tasks:
    - name: Collect Juniper Facts
      junos_facts:

2. Update the pb_jnpr_facts.yml playbook with the following tasks to create a facts report for each node in our inventory:

    - name: Create Facts Folder
      file: path=device_facts state=directory
      run_once: yes

    - name: Create Basic Device Facts Report
      blockinfile:
        path: "device_facts/{{ inventory_hostname }}.txt"
        block: |
          device_name: {{ Ansible_net_hostname }}
          model: {{ Ansible_net_system }} {{ Ansible_net_model }}
          os_version: {{ Ansible_net_version }}
          serial_number: {{ Ansible_net_serialnum }}
        create: yes

3. Update the playbook with the following task to validate the operational state for the core interfaces:

    - name: Validate all Core Interface are Operational
      assert:
        that:
          - Ansible_net_interfaces[item.port]['oper-status'] == 'up'
        fail_msg: "Interface {{item.port}} is not Operational "
      loop: "{{ p2p_ip[inventory_hostname] }}"