hosts

ansible-node ansible_ssh_host=<Ansible node private IP >
masternode ansible_ssh_host=<Master-node node private IP >
workernode0 ansible_ssh_host=<Worker-node node private IP >
workernode1 ansible_ssh_host=<Worker-node node private IP >
workernode2 ansible_ssh_host=<Worker-node node private IP >
workernode3 ansible_ssh_host=<Worker-node node private IP >

[configNode]
ansible-node ansible_connection=local ansible_user=ubuntu

[master]
masternode ansible_connection=ssh ansible_user=ubuntu

[master:vars]
ansible_python_interpreter=/usr/bin/python3

[workers]
workernode0 ansible_connection=ssh ansible_user=ubuntu
workernode1 ansible_connection=ssh ansible_user=ubuntu
workernode2 ansible_connection=ssh ansible_user=ubuntu
workernode3 ansible_connection=ssh ansible_user=ubuntu

[workers:vars]
ansible_python_interpreter=/usr/bin/python3