TSIG Key for DNS automation

Hi Everyone,

We have internal AD integrated DNS domain.

Our Linux team want to have some DNS automation (Like creating and deleting A and CNAME records) automatically using Ansible.

For this we have created AD integrated Subdomain.

They wanted to use below link (nsupdate)

https://docs.ansible.com/ansible/latest/modules/nsupdate_module.html

For them to continue it require Secret Key. Can anybody help me to get this key.

Thanks

Anka