```shell
sudo useradd -m -s /bin/bash ansible
sudo mkdir -p /home/ansible/.ssh
sudo nano /home/ansible/.ssh/authorized_keys
sudo chown -R ansible:ansible /home/ansible/.ssh
sudo chmod 700 /home/ansible/.ssh
sudo chmod 600 /home/ansible/.ssh/authorized_keys
sudo visudo
ansible ALL=(ALL) NOPASSWD:ALL
```