Prereq

sudo apt install ansible

ansible --version

If you encounter error, try su then pip install ansible.

To test ping, assuming group name is ubuntu and the ssh user is ss:

ansible -i ./inventory/hosts ubuntu -m ping --user ss --private-key ~/.ssh/id_rsa

Playbooks

To run:

ansible-playbook ./playbooks/apt.yml --user ss --private-key ~/.ssh/id_rsa -i ./inventory/hosts

If the playbook uses secret, append --ask-vault-pass.

ansible-vault create secret.yml

ansible-vault decrypt secret.yml