...
2- Create in the terraform an "local-exec" provider to log into the VM and run the Ansible Playbook
https://getintodevops.com/blog/using-ansible-with-terraform
# This is where we configure the instance with ansible-playbook
provisioner "local-exec" {
command = "sleep 120; ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook -u ubuntu --private-key ./deployer.pem -i '${aws_instance.jenkins_master.public_ip},' master.yml"
}