determining network os type?

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1

Hi,

There are various network modules for iOS,EOS, etc etc…

What I was wondering is there a way to determine a hosts base os type so that the correct network module can be called? I have seen some sites reference ‘ansible_network_os’

like below. However I am not sure is this is simple a variable that has been set manually of something ansible sets when initially connecting to a device?

eos_facts:
  when: ansible_network_os == 'eos'

- name: Gather facts (ops)
  ios_facts:
  when: ansible_network_os == 'ios'

- name: Gather facts (vyos)
  vyos_facts:
2

ansible_network_os is a reserved variable and need to be set manually.
More details can be found here https://docs.ansible.com/ansible/devel/network/user_guide/platform_index.html

Regards,
Ganesh