conditional_network_demo.yml

---
- name: Conditional Network Demo
  hosts: cisco
  connection: network_cli
  gather_facts: no

  vars:
    ntp_server: "216.239.35.0"
    ntp_server_fail: "300.300.300.300"
    when_IOS: "IOS"
    when_NXOS: "NXOS"
    my_param: 50

  tasks:
    - name: ipv4 success
      assert:
        that:
          - "ntp_server | ipaddr"
        success_msg: "'This is a valid IPv4 address"

    - name: ipv4 fail
      assert:
        that:
          - "ntp_server_fail | ipaddr"
        msg: "This is NOT a valid IPv4 address"
      ignore_errors: True

    - name: IOS and NXOS
      assert:
        that:
          - when_IOS == "IOS"
          - when_NXOS == "NXOS"
        success_msg: "This is IOS and NXOS"

    - name: IOS or not NXOS
      assert:
        that:
          - when_IOS == "IOS" or when_NXOS != "NXOS"
        success_msg: "This is IOS or not NXOS"

    - name: fail and success my_param
      ansible.builtin.assert:
        that:
          - my_param <= 100
          - my_param >= 0
        fail_msg: "'my_param' must be between 0 and 100"
        success_msg: "'my_param' is between 0 and 100"

    - name: When demo success
      debug:
        msg: "This is IOS conditional check pass"
      when: when_IOS == "IOS"

    - name: When demo failure
      debug:
        msg: "This is IOS conditional check failure"
      when: when_IOS != "IOS"
      ignore_errors: True

    - name: check for IOS in show version
      cisco.ios.command:
        commands: show version
        wait_for: result[0] contains IOS

    - name: Using fail module
      fail:
        msg: This is IOS fail module check failure
      when: when_IOS == "IOS"
      ignore_errors: True